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Version 155.3 by Mengting Qiu on 2025/05/16 15:14
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4 [[image:image-20240103165259-3.png||height="433" width="591"]]
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12 **Table of Contents:**
13
14 {{toc/}}
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28 = 1. Introduction =
29
30 == 1.1 ​What is SDI-12 to LoRaWAN Converter ==
31
32
33 (((
34 The Dragino (% style="color:blue" %)**SDI-12-LB/LS**(%%) is a (% style="color:blue" %)**SDI-12 to LoRaWAN Converter **(%%)designed for Smart Agriculture solution.
35 )))
36
37 (((
38 SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous [[serial communications>>url:https://en.wikipedia.org/wiki/Serial_communication]] protocol for intelligent sensors that monitor environment data. SDI-12 protocol is widely used in Agriculture sensor and Weather Station sensors.
39 )))
40
41 (((
42 SDI-12-LB/LS has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.
43 )))
44
45 (((
46 The LoRa wireless technology used in SDI-12-LB/LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
47 )))
48
49 (((
50 SDI-12-LB/LS is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%) or (% style="color:blue" %)**solar powered + Li-ion battery,**(%%) it is designed for long term use up to 5 years.
51 )))
52
53 (((
54 Each SDI-12-LB/LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
55 )))
56
57
58 == ​1.2 Features ==
59
60
61 * LoRaWAN 1.0.3 Class A
62 * Ultra-low power consumption
63 * Controllable 3.3v, 5v and 12v output to power external sensor
64 * SDI-12 Protocol to connect to SDI-12 Sensor
65 * Monitor Battery Level
66 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
67 * Support Bluetooth v5.1 and LoRaWAN remote configure.
68 * Support wireless OTA update firmware
69 * Uplink on periodically
70 * Downlink to change configure
71 * 8500mAh Li/SOCl2 Battery (SDI-12-LB)
72 * Solar panel + 3000mAh Li-ion battery (SDI-12-LS)
73
74 == 1.3 Specification ==
75
76
77 (% style="color:#037691" %)**Micro Controller:**
78
79 * MCU: 48Mhz ARM
80 * Flash: 256KB
81 * RAM: 64KB
82
83 (% style="color:#037691" %)**Common DC Characteristics:**
84
85 * Supply Voltage: Built-in Battery, 2.5v ~~ 3.6v
86 * Support current: 5V 300mA, 12V 100mA
87 * Operating Temperature: -40 ~~ 85°C
88
89 (% style="color:#037691" %)**LoRa Spec:**
90
91 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
92 * Max +22 dBm constant RF output vs.
93 * RX sensitivity: down to -139 dBm.
94 * Excellent blocking immunity
95
96 (% style="color:#037691" %)**Current Input Measuring :**
97
98 * Range: 0 ~~ 20mA
99 * Accuracy: 0.02mA
100 * Resolution: 0.001mA
101
102 (% style="color:#037691" %)**Voltage Input Measuring:**
103
104 * Range: 0 ~~ 30v
105 * Accuracy: 0.02v
106 * Resolution: 0.001v
107
108 (% style="color:#037691" %)**Battery:**
109
110 * Li/SOCI2 un-chargeable battery
111 * Capacity: 8500mAh
112 * Self-Discharge: <1% / Year @ 25°C
113 * Max continuously current: 130mA
114 * Max boost current: 2A, 1 second
115
116 (% style="color:#037691" %)**Power Consumption**
117
118 * Sleep Mode: 5uA @ 3.3v
119 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
120
121 == 1.4 Connect to SDI-12 Sensor ==
122
123
124 [[image:1675212538524-889.png||_mstalt="298272"]]
125
126
127 == 1.5 Sleep mode and working mode ==
128
129
130 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
131
132 (% style="color:blue" %)**Working Mode: **(%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
133
134
135 == 1.6 Button & LEDs ==
136
137
138 [[image:image-20250416151419-4.jpeg]]
139
140 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
141 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
142 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Send an uplink|(% style="background-color:#f2f2f2; width:225px" %)(((
143 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
144 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
145 )))
146 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
147 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
148 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
149 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
150 )))
151 |(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means SDI-12-LB/LS is in Deep Sleep Mode.
152
153 == 1.7 Pin Mapping ==
154
155
156 [[image:1675213198663-754.png||_mstalt="297167"]]
157
158
159 == 1.8 BLE connection ==
160
161
162 SDI-12-LB/LS support BLE remote configure.
163
164 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
165
166 * Press button to send an uplink
167 * Press button to active device.
168 * Device Power on or reset.
169
170 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
171
172
173 == 1.9 Mechanical ==
174
175 === 1.9.1 for LB version ===
176
177
178 [[image:image-20250416151406-3.jpeg]]
179
180
181 === 1.9.2 for LS version ===
182
183
184 [[image:image-20250329133856-1.jpeg]]
185
186
187 = 2. Configure SDI-12 to connect to LoRaWAN network =
188
189 == 2.1 How it works ==
190
191
192 The SDI-12-LB/LS is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and activate the SDI-12-LB/LS. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
193
194
195 == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
196
197
198 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
199
200 [[image:image-20250416151346-2.png]]
201
202
203 The LPS8V2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
204
205
206 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from SDI-12-LB/LS.
207
208 Each SDI-12-LB/LS is shipped with a sticker with the default device EUI as below:
209
210 [[image:image-20230426084456-1.png||height="241" width="519"]]
211
212
213 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
214
215 **Create the application.**
216
217 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
218
219 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
220
221
222 **Add devices to the created Application.**
223
224 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
225
226 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
227
228
229 **Enter end device specifics manually.**
230
231 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
232
233
234 **Add DevEUI and AppKey.**
235
236 **Customize a platform ID for the device.**
237
238 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
239
240
241 (% style="color:blue" %)**Step 2: **(%%)Add decoder
242
243 While using TTN network, you can add the payload format to decode the payload.
244
245 There is no fix payload decoder in LoRaWAN server because the SDI-12 sensors returns are different. User need to write the decoder themselves for their case.
246
247 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
248
249 Below is TTN screen shot:
250
251 [[image:image-20241118165746-3.png||height="470" width="869"]]
252
253 [[image:image-20241118165832-4.png||height="336" width="724"]]
254
255
256 (% style="color:blue" %)**Step 3**(%%): Activate on SDI-12-LB/LS
257
258 Press the button for 5 seconds to activate the SDI-12-LB/LS.
259
260 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode** (%%)for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
261
262 [[image:1675213704414-644.png||_mstalt="293748"]]
263
264
265 == ​2.3 SDI-12 Related Commands ==
266
267
268 User need to configure SDI-12-LB/LS to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
269
270 If you use UART to connect a computer, refer to the following connection methods:
271
272 [[image:image-20240823165402-1.jpeg||height="488" width="678"]]
273
274 Screenshot example:
275
276 [[image:image-20240823165526-2.png||height="489" width="690"]]
277
278
279
280 === 2.3.1 Basic SDI-12 debug command ===
281
282
283 User can run some basic SDI-12 command to debug the connection to the SDI-12 sensor. These commands can be sent via AT Command or LoRaWAN downlink command.
284
285 If SDI-12 sensor return value after get these commands, //SDI-12-LB/LS// will uplink the return on FPORT=100, otherwise, if there is no response from SDI-12 sensor. //SDI-12-LB/LS// will uplink NULL (0x 4E 55 4C 4C) to server.
286
287 The following is the display information on the serial port and the server.
288
289
290 [[image:image-20230201091027-6.png||_mstalt="429065"]]
291
292
293 [[image:image-20230201091027-7.png||_mstalt="429429" height="261" width="1179"]]
294
295
296
297 ==== (% style="color:blue" %)**al!  ~-~- Get SDI-12 sensor Identification**(%%) ====
298
299
300 * AT Command: AT+ADDRI=aa
301 * LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
302
303 (% style="color:#037691" %)**Parameter:  **(%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
304
305 (% style="color:blue" %)**Example :   **(%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
306
307
308 The following is the display information on the serial port and the server.
309
310
311 [[image:image-20230201091257-8.png||_mstalt="431392"]]
312
313
314 [[image:image-20230201091257-9.png||_mstalt="431756" height="225" width="1242"]]
315
316
317 ==== (% style="color:blue" %)**aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!**(%%) ====
318
319
320 (% style="color:red" %)**aM! **(%%): Start Non-Concurrent Measurement
321
322 (% style="color:red" %)**aMC! **(%%): Start Non-Concurrent Measurement – Request CRC
323
324 (% style="color:red" %)**aM1!- aM9! **(%%): Additional Measurements
325
326 (% style="color:red" %)**aMC1!- aMC9!**(%%) : Additional Measurements – Request CRC
327
328
329 * AT Command : AT+ADDRM=0,1,0,1
330
331 * LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
332
333 Downlink：AA 01 aa bb cc dd
334
335 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
336
337 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
338
339 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
340
341 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
342
343
344 The following is the display information on the serial port and the server.
345
346
347 [[image:image-20230201091630-10.png||_mstalt="449995"]]
348
349
350 [[image:image-20230201091630-11.png||_mstalt="450372" height="247" width="1165"]]
351
352
353
354 ==== (% style="color:blue" %)**aC!, aCC!,  aC1!- aC9!,  aCC1!- aCC9! **(%%) ====
355
356
357 (% style="color:red" %)**aC!**(%%) : Start Concurrent Measurement
358
359 (% style="color:red" %)**aCC!** (%%): Start Concurrent Measurement – Request CRC
360
361 (% style="color:red" %)**aC1!- aC9!**(%%) : Start Additional Concurrent Measurements
362
363 (% style="color:red" %)**aCC1!- aCC9!**(%%) : Start Additional Concurrent Measurements – Request CRC
364
365
366 * AT Command : AT+ADDRC=0,1,0,1 
367
368 * LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
369
370 Downlink: AA 02 aa bb cc dd
371
372 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
373
374 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
375
376 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
377
378 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%)__ __to get return.
379
380
381 The following is the display information on the serial port and the server.
382
383
384 [[image:image-20230201091954-12.png||_mstalt="453687"]]
385
386
387 [[image:image-20230201091954-13.png||_mstalt="454064" height="203" width="1117"]]
388
389
390
391 ==== (% style="color:blue" %)**aR0!- aR9!,  aRC0!- aRC9!**(%%) ====
392
393
394 Start Continuous Measurement
395
396 Start Continuous Measurement – Request CRC
397
398
399 * AT Command : AT+ADDRR=0,1,0,1 
400 * LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
401
402 Downlink: AA 03 aa bb cc dd
403
404 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
405
406 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
407
408 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
409
410 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
411
412
413 The following is the display information on the serial port and the server.
414
415
416 [[image:image-20230201092208-14.png||_mstalt="452283"]]
417
418
419 [[image:image-20230201092208-15.png||_mstalt="452660" height="214" width="1140"]]
420
421
422 === 2.3.2 Advance SDI-12 Debug command ===
423
424
425 This command can be used to debug all SDI-12 command.
426
427
428 LoRaWAN Downlink: A8 aa xx xx xx xx bb cc dd
429
430 (% style="color:#037691" %)**aa **(%%): total SDI-12 command length
431
432 (% style="color:#037691" %)**xx **(%%): SDI-12 command
433
434 (% style="color:#037691" %)**bb **(%%): Delay to wait for return
435
436 (% style="color:#037691" %)**cc **(%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
437
438 (% style="color:#037691" %)**dd: **(%%) 0: Do not use aD0! command access, 1: use aD0! command access.
439
440
441 (% style="color:blue" %)**Example1: **(%%) AT+CFGDEV =0RC0!,1
442
443 (% style="color:#037691" %)**0RC0! **(%%): SDI-12 Command,
444
445 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
446
447 Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
448
449
450 The following is the display information on the serial port and the server.
451
452
453 [[image:image-20230201092355-16.png||_mstalt="453960"]]
454
455
456 [[image:image-20230201092355-17.png||_mstalt="454337" height="426" width="1135"]]
457
458
459 (% style="color:blue" %)**Example2: **(%%) AT+CFGDEV =0M!,1,1
460
461 (% style="color:#037691" %)**0M! **(%%): SDI-12 Command,
462
463 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
464
465 (% style="color:#037691" %)**1 **(%%): Use aD0! command access.
466
467 Equal Downlink: 0xA8 03 30  4D 21 01 01 01
468
469
470 The following is the display information on the serial port and the server.
471
472
473 [[image:image-20230628091055-1.png||height="368" width="462"]]
474
475 [[image:image-20230628091130-2.png||height="258" width="879"]]
476
477
478 === 2.3.3 Convert ASCII to String ===
479
480
481 This command is used to convert between ASCII and String format.
482
483 AT+CONVFORM ( Max length: 80 bytes)
484
485
486 (% style="color:blue" %)**Example:**
487
488 1) AT+CONVFORM=0, string Convert String from String to ASCII
489
490 [[image:1675214845056-885.png||_mstalt="297622"]]
491
492
493 2) AT+CONVFORM=1, ASCII Convert ASCII to String.
494
495 [[image:1675214856590-846.png||_mstalt="297739"]]
496
497
498 === 2.3.4 Define periodically SDI-12 commands and uplink. ===
499
500
501 AT+COMMANDx & AT+DATACUTx**&AT+DATACONVx**
502
503 User can define max 15 SDI-12 Commands (AT+COMMAND1 ~~ AT+COMMANDF). On each uplink period (TDC time, default 20 minutes), SDI-12-LB/LS will send these SDI-12 commands and wait for return from SDI-12 sensors. SDI-12-LB/LS will then combine these returns and uplink via LoRaWAN.
504
505
506 * (% style="color:blue" %)**AT Command:**
507
508 (% style="color:#037691" %)**AT+COMMANDx=var1,var2,var3,var4.**
509
510 (% style="color:red" %)**var1**(%%): SDI-12 command , for example: 0RC0!
511
512 (% style="color:red" %)**var2**(%%): Wait timeout for return. (unit: second)
513
514 (% style="color:red" %)**var3**(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//. (% style="color:red" %)**2: The returned data will not be clipped.(since v1.3.0)**
515
516 (% style="color:red" %)**var4**(%%): validation check for return. If return invalid, SDI-12-LB/LS will resend this command. Max 3 retries.
517
518 (% style="color:red" %)**0 **(%%) No validation check;
519
520 (% style="color:red" %)**1** (%%) Check if return chars are printable char(0x20 ~~ 0x7E);
521
522 (% style="color:red" %)**2**(%%)  Check if there is return from SDI-12 sensor
523
524 (% style="color:red" %)**3** (%%) Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
525
526
527 Each AT+COMMANDx is followed by a (% style="color:blue" %)**AT+DATACUT**(%%) command. AT+DATACUT command is used to take the useful string from the SDI-12 sensor so the final payload will have the minimum length to uplink.
528
529
530 (% style="color:blue" %)**AT+DATACUTx**(%%) : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
531
532 (% border="1" style="width:436px" %)
533 |(% style="background-color:#f2f2f2; width:433px" %)(((
534 (% style="color:#0070c0" %)**AT+DATACUTx=a,b,c**
535
536 **a**:  length for the return of AT+COMMAND
537
538 **b**: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
539
540 **c**:  define the position for valid value. 
541 )))
542
543 For example, if return from AT+COMMAND1 is “013METER   TER12 112T12-00024895<CR><LF>” , Below AT+DATACUT1 will get different result to combine payload:
544
545
546 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
547 |=(% style="width: 164px;background-color:#4F81BD;color:white" %)**AT+DATACUT1 value**|=(% style="width: 346px;background-color:#4F81BD;color:white" %)**Final Result to combine Payload**
548 |(% style="background-color:#f2f2f2; width:164px" %)34,1,1+2+3|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33
549 |(% style="background-color:#f2f2f2; width:164px" %)34,2,1~~8+12~~16|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33 4D 45 54 45 52 54 45 52 31 32
550 |(% style="background-color:#f2f2f2; width:164px" %)34,2,1~~34|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33 4D 45 54 45 52 20 20 20 54 45 52 31 32 20 31 31 32 54 31 32 2D 30 30 30 32 34 38 39 35 0D 0A
551
552 * (% style="color:blue" %)** Downlink Payload:**
553
554 (% style="color:blue" %)**0xAF**(%%)  downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
555
556
557 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
558
559
560 Format: ** (% style="color:#037691" %)AF MM NN LL XX XX XX XX YY(%%)**
561
562 Where:
563
564 * (% style="color:#037691" %)**MM **(%%): the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
565 * (% style="color:#037691" %)**NN **(%%):  1: set the AT+COMMAND value ; 2: set the AT+DATACUT value.
566 * (% style="color:#037691" %)**LL **(%%):  The length of AT+COMMAND or AT+DATACUT command
567 * (% style="color:#037691" %)**XX XX XX XX **(%%): AT+COMMAND or AT+DATACUT command
568 * (% style="color:#037691" %)**YY **(%%):  If YY=0, SDI-12-LB/LS will execute the downlink command without uplink; if YY=1, SDI-12-LB/LS will execute an uplink after got this command. 
569
570 (% style="color:blue" %)**Example:**
571
572 [[image:image-20230201094129-18.png||_mstalt="455065"]]
573
574
575
576 (% style="color:blue" %)**Clear SDI12 Command**
577
578 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
579
580
581 * (% style="color:#037691" %)**AT Command:**
582
583 (% style="color:#4f81bd" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
584
585
586 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
587
588
589 * (% style="color:#037691" %)**Downlink Payload:**
590
591 (% style="color:#4f81bd" %)**0x09 aa bb**(%%)  same as AT+CMDEAR=aa,bb
592
593
594
595 (% style="color:blue" %)**command combination**
596
597 Below shows a screen shot how the results combines together to a uplink payload.
598
599 [[image:1675215745275-920.png||_mstalt="295334"]]
600
601
602 If user don't want to use DATACUT for some command, he simply want to uplink all returns. AT+ALLDATAMOD can be set to 1.
603
604 (% style="color:blue" %)**AT+ALLDATAMOD**(%%) will simply get all return and don't do CRC check as result for SDI-12 command. AT+DATACUTx command has higher priority, if AT+DATACUTx has been set, AT+ALLDATAMOD will be ignore for this SDI-12 command.
605
606
607 (% style="color:#4f81bd" %)**For example: **(%%) as below photo, AT+ALLDATAMOD=1, but AT+DATACUT1 has been set, AT+DATACUT1 will be still effect the result.
608
609
610 [[image:1675215782925-448.png||_mstalt="297466"]]
611
612
613 If AT+ALLDATAMOD=1, (% style="color:#4f81bd" %)**FX,X**(%%) will be added in the payload, FX specify which command is used and X specify the length of return. for example in above screen, F1 05 means the return is from AT+COMMAND1 and the return is 5 bytes.
614
615
616 (% style="color:blue" %)**Compose Uplink**
617
618 (% style="color:#4f81bd" %)**AT+DATAUP=0**
619
620 Compose the uplink payload with value returns in sequence and send with **__A SIGNLE UPLINK__**.
621
622 Final Payload is **__Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx__**
623
624 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
625
626
627 [[image:1675215828102-844.png||_mstalt="294645"]]
628
629
630 (% style="color:#4f81bd" %)**AT+DATAUP=1**
631
632 Compose the uplink payload with value returns in sequence and send with **__Multiply UPLINKs__**.
633
634 Final Payload is __**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**__
635
636 1. Battery Info (2 bytes): Battery voltage
637 1. PAYVER (1 byte): Defined by AT+PAYVER
638 1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
639 1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
640 1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
641
642 [[image:1675215848113-696.png||_mstalt="296998"]]
643
644
645 (% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
646
647 * For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
648 * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
649 * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
650 * For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
651
652 (% style="color:red" %)**When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
653
654 (% style="color:red" %)**When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value.**
655
656
657
658 (% style="color:blue" %)**Automatically converts polled data to hex format for uplinking(Since v1.3.0)**
659
660
661 This command can retrieve the returned data, convert the number after the positive or negative sign into a data, and then set the number of bytes to upload the data.
662
663
664 * (% style="color:blue" %)**AT Command:**
665
666 The maximum number can be set to 5 groups and the format of the command is as follows：
667
668 (% style="color:#037691" %)**Example 1:AT+DATACONVx=var1, var2**
669
670 (% style="color:#037691" %)**Example 2:AT+DATACONVx=var1, var2+ var3, var4**
671
672 (% style="color:#037691" %)**Example 3:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6**
673
674 (% style="color:#037691" %)**Example 4:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8**
675
676 (% style="color:#037691" %)**Example 5:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8+ var9, var10**
677
678 (% style="color:red" %)**Notice: Among them, var1, var3, var5, var7, and var9 are the data to be selected for conversion, and var2, var4, var6, var8, and var10 are the number of bytes to be uploaded. The values of var2, var4, var6, var8, and var10 range from 1 to 4.**
679
680
681 **For example:**
682
683 This is my configuration:
684
685 [[image:image-20250516103205-2.png]]
686
687
688 * AT+COMMAND1=0C!,0,2,0  After sending the concurrent command of device 0, the data will not be cut, and the next command will be sent immediately.
689 * AT+COMMAND2=0M!,1,2,0  After sending the concurrent command of device 0, do not cut the data and wait for one second. (The last concurrent command needs to wait for the measurement time of all sensors)
690 * AT+COMMAND3=0D0!,0,0,0  Query the data measured by device 0
691
692 This is the data obtained:
693
694 [[image:image-20250516145402-2.png]]
695
696
697 When using the AT+DATACONVx command,
698
699 The data of RETURN3 will be converted into 2 data, the first data is +95, and the second data is +260.
700
701 * AT+DATACONV3=1,2+2,2  The first data is uploaded as 2 bytes and the second data is uploaded as 2 bytes. The form converted to hexadecimal is as shown above,as below:
702
703 [[image:image-20250516144559-1.png]]
704
705 0C90 01 005F 0104
706
707 (% style="color:#037691" %)**BAT**(%%): 0x0c90 = 3216mV = 3.216V
708
709 (% style="color:#037691" %)**Payload Version**(%%): 0x01, Means: v1.0 version
710
711 (% style="color:#037691" %)**Data 1: **(%%)0x005F(H) = 95(D) / 100 = 0.95
712
713 (% style="color:#037691" %)**Data 2: **(%%)0x0104(H) = 260(D) / 10 = 26.0
714
715
716 == 2.4 Uplink Payload ==
717
718 === 2.4.1 Device Payload, FPORT~=5 ===
719
720
721 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
722
723 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
724
725 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
726 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
727 |(% style="background-color:#f2f2f2; width:103px" %)**Size (bytes)**|(% style="background-color:#f2f2f2; width:72px" %)**1**|(% style="background-color:#f2f2f2" %)**2**|(% style="background-color:#f2f2f2; width:91px" %)**1**|(% style="background-color:#f2f2f2; width:86px" %)**1**|(% style="background-color:#f2f2f2; width:44px" %)**2**
728 |(% style="background-color:#f2f2f2; width:103px" %)**Value**|(% style="background-color:#f2f2f2; width:72px" %)Sensor Model|(% style="background-color:#f2f2f2" %)Firmware Version|(% style="background-color:#f2f2f2; width:91px" %)Frequency Band|(% style="background-color:#f2f2f2; width:86px" %)Sub-band|(% style="background-color:#f2f2f2; width:44px" %)BAT
729
730 Example parse in TTNv3
731
732 [[image:1675215946738-635.png||_mstalt="297778"]]
733
734
735 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
736
737 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
738
739 (% style="color:#037691" %)**Frequency Band**:
740
741 0x01: EU868
742
743 0x02: US915
744
745 0x03: IN865
746
747 0x04: AU915
748
749 0x05: KZ865
750
751 0x06: RU864
752
753 0x07: AS923
754
755 0x08: AS923-1
756
757 0x09: AS923-2
758
759 0x0a: AS923-3
760
761 0x0b: CN470
762
763 0x0c: EU433
764
765 0x0d: KR920
766
767 0x0e: MA869
768
769
770 (% style="color:#037691" %)**Sub-Band**:
771
772 AU915 and US915:value 0x00 ~~ 0x08
773
774 CN470: value 0x0B ~~ 0x0C
775
776 Other Bands: Always 0x00
777
778
779 (% style="color:#037691" %)**Battery Info**:
780
781 Check the battery voltage.
782
783 Ex1: 0x0B45 = 2885mV
784
785 Ex2: 0x0B49 = 2889mV
786
787
788 === 2.4.2 Uplink Payload, FPORT~=2 ===
789
790
791 There are different cases for uplink. See below
792
793 * SDI-12 Debug Command return: FPORT=100
794
795 * Periodically Uplink: FPORT=2
796
797 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
798 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
799 **Size(bytes)**
800 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 240px;background-color:#4F81BD;color:white" %)**Length depends on the return from the commands**
801 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
802 Battery(mV)
803 &
804 Interrupt_Flag
805 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
806 If the valid payload is too long and exceed the maximum support.
807 Payload length in server,server will show payload not provided in the LoRaWAN server.
808 )))
809
810 [[image:1675216282284-923.png||_mstalt="295633"]]
811
812
813 === 2.4.3 Battery Info ===
814
815
816 Check the battery voltage for SDI-12-LB/LS.
817
818 Ex1: 0x0B45 = 2885mV
819
820 Ex2: 0x0B49 = 2889mV
821
822
823 === 2.4.4 Interrupt Pin ===
824
825
826 This data field shows if this packet is generated by (% style="color:#037691" %)**Interrupt Pin**(%%) or not. [[Click here>>||anchor="H3.2SetInterruptMode"]] for the hardware and software set up. Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.7PinMapping"]].
827
828 **Example:**
829
830 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
831
832 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
833
834
835 === 2.4.5 Payload version ===
836
837
838 The version number of the payload, mainly used for decoding. The default is 01.
839
840
841 === 2.4.6 ​Decode payload in The Things Network ===
842
843
844 While using TTN network, you can add the payload format to decode the payload.
845
846 [[image:1675216779406-595.png||_mstalt="298376"]]
847
848
849 There is no fix payload decoder in LoRaWAN server because the SDI-12 sensors returns are different. User need to write the decoder themselves for their case.
850
851 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
852
853
854 == 2.5 Uplink Interval ==
855
856
857 The SDI-12-LB/LS by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
858
859 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.1ChangeUplinkInterval>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.1ChangeUplinkInterval]]
860
861
862 == 2.6 Examples To Set SDI commands ==
863
864 === 2.6.1 Examples 1 ~-~- General Example ===
865
866
867 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
868
869 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
870
871
872 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
873
874 a. Send the first command and get the first reply：
875
876 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
877
878 b. Send the second command and get the second reply：
879
880 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
881
882 c. Send the third command and get the third reply：
883
884 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
885
886 d. Send the fourth command and get the fourth reply：
887
888 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
889
890 e. Send the fifth command plus the sixth command, get the sixth reply：
891
892 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
893
894 f. Send the seventh command plus the eighth command, get the eighth reply：
895
896 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
897
898 g. Send the ninth command plus the tenth command, get the tenth reply：
899
900 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
901
902 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
903
904 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
905
906
907 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
908
909 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
910
911 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
912
913 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
914
915 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
916
917 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
918
919 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
920
921 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
922
923 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
924
925 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
926
927 Partial cut, the cut sensor address and the first two parameters:(% style="color:#037691" %)**AT+DATACUTx=25,2,1~~12, cut out the character field "4+30.8+22.84"**.
928
929
930 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
931
932 ==== 2.6.2.1 Reference Manual and Command ====
933
934
935 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
936
937 * Commands to be used in PC and output.
938
939 ~1. check device address
940
941 2. change device address
942
943 3. check device ID
944
945 4. start measure
946
947 5. Get Meausre result
948
949 [[image:image-20230603120209-2.png||height="281" width="267"]]
950
951
952 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
953
954
955 [[image:image-20230603120515-3.png]]
956
957
958 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
959
960
961 [[image:image-20230603120648-4.png]]
962
963 [[image:image-20230603120726-5.png]]
964
965
966 **Data in TTN:**
967
968 [[image:image-20230603120859-6.png||height="118" width="1285"]]
969
970
971 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
972
973 ==== 2.6.3.1 Reference Manual and Command ====
974
975
976 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
977
978 * Commands to be used in PC and output.
979
980 ~1. check device address
981
982 2. change device address
983
984 3. check device ID
985
986 4. start measure
987
988 5. Get Meausre result
989
990 [[image:image-20230603121606-7.png||height="242" width="307"]]
991
992
993 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
994
995
996 [[image:image-20230603121643-8.png||height="442" width="656"]]
997
998
999 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
1000
1001
1002 [[image:image-20230603121721-9.png]]
1003
1004 [[image:image-20230628090323-1.png||height="414" width="694"]]
1005
1006 Data in TTN:
1007
1008 [[image:image-20230603121826-11.png||height="155" width="1104"]]
1009
1010
1011 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
1012
1013 ==== 2.6.4.1 Reference Manual and Command ====
1014
1015
1016 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
1017
1018 * Commands to be used in PC and output.
1019
1020 1.check device address
1021
1022 2.change device address
1023
1024 3.check device ID
1025
1026 4.start measure
1027
1028 5.Get Meausre result
1029
1030 [[image:image-20230603122248-16.png||height="196" width="198"]]
1031
1032
1033 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
1034
1035
1036 [[image:image-20230603122212-15.png||height="502" width="667"]]
1037
1038
1039 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
1040
1041
1042 [[image:image-20230603122040-12.png]]
1043
1044 [[image:image-20230603122109-13.png||height="469" width="762"]]
1045
1046
1047 **Data in TTN:**
1048
1049 [[image:image-20230603122139-14.png||height="148" width="1128"]]
1050
1051
1052 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
1053
1054 ==== 2.6.5.1 Important Notice! ====
1055
1056
1057 * The product page and reference command see above example 2,3,4
1058
1059 * All of these SDI-12 sensors use the same address (address 0) by default. So we need to change their address to different address, by using **aAb!** command. See above example.
1060
1061 * The sensor needs to be powered to a steady statue. So the 12VT time need to be set to the maximum stable time for the sensors. in this example, it is 13 seconds.
1062
1063 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1064
1065 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1066
1067
1068 [[image:image-20230603122508-17.png||height="526" width="742"]]
1069
1070
1071 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1072
1073
1074 [[image:image-20230603122549-18.png]]
1075
1076 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1077
1078
1079 **Data in TTN:**
1080
1081 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1082
1083
1084 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1085
1086 ==== 2.6.6.1 Reference Manual and Command ====
1087
1088
1089 * [[https:~~/~~/enviroprosoilprobes.com/wp-content/uploads/2019/11/ENTELECHY-EP_SDI-12-Commands.pdf>>url:https://enviroprosoilprobes.com/wp-content/uploads/2019/11/ENTELECHY-EP_SDI-12-Commands.pdf]]
1090
1091 * Commands to be used in PC and output.
1092
1093 1.check device address
1094
1095 2.change device address
1096
1097 3.check device ID
1098
1099 4.start measure
1100
1101 5.Get Meausre result
1102
1103
1104 [[image:image-20230627174559-3.png]]
1105
1106
1107 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1108
1109
1110 [[image:image-20230627174446-2.png]]
1111
1112
1113 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1114
1115
1116 [[image:image-20230627175513-4.png||height="596" width="576"]]
1117
1118 [[image:image-20230627175736-5.png||height="429" width="693"]]
1119
1120
1121 **Data in TTN:**
1122
1123 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1124
1125
1126 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1127
1128 ==== 2.6.7.1  Reference Manual and Command ====
1129
1130
1131 * [[https:~~/~~/static1.squarespace.com/static/5db0b690c4990258f8f6d042/t/64189e1ab3ebc54e6947b0c0/1679334941034/2625-N-T+GroPoint+Profile+User+Manual-V1.1.3.pdf>>https://static1.squarespace.com/static/5db0b690c4990258f8f6d042/t/64189e1ab3ebc54e6947b0c0/1679334941034/2625-N-T+GroPoint+Profile+User+Manual-V1.1.3.pdf]]
1132
1133 * Commands to be used in PC and output.
1134
1135 1. check device address
1136 1. change device address
1137 1. check device ID
1138 1. start measure
1139 1. Get Meausre result
1140
1141 [[image:image-20240423143921-1.png]]
1142
1143
1144 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1145
1146
1147 (% style="color:red" %)**Note: When the bytes returned by the sensor are not fixed, the full byte interception can be used: AT+ALLDATAMOD=1 (The DATACUTx parameter needs to be cleared when using this directive, or it will not work.)**
1148
1149 [[image:image-20240423145522-2.png||height="345" width="400"]]
1150
1151
1152 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1153
1154 [[image:image-20240423151202-3.png]]
1155
1156 (% class="wikigeneratedid" id="H" %)
1157 [[image:image-20240423162851-6.png||height="251" width="935"]]
1158
1159
1160 DATA in TTN:
1161
1162 [[image:image-20240423162322-4.png||height="269" width="933"]]
1163
1164
1165 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1166
1167 ==== 2.6.8.1  Reference Manual and Command ====
1168
1169
1170 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1171
1172 * Commands to be used in PC and output.
1173
1174 1. check device address
1175 1. change device address
1176 1. check device ID
1177 1. start measure
1178 1. Get Meausre result
1179
1180 [[image:image-20240903152650-3.png]]
1181
1182 [[image:image-20240903152627-2.png]]
1183
1184
1185 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1186
1187
1188 (% style="color:red" %)**Note: When the bytes returned by the sensor are not fixed, the full byte interception can be used: AT+ALLDATAMOD=1 (The DATACUTx parameter needs to be cleared when using this directive, or it will not work.)**
1189
1190 [[image:image-20240903153004-5.png||height="358" width="660"]]
1191
1192
1193 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1194
1195
1196 [[image:image-20240903153258-6.png]]
1197
1198 [[image:image-20240903153627-7.png]]
1199
1200 DATA in TTN:
1201
1202 [[image:image-20240903154020-10.png||height="467" width="961"]]
1203
1204
1205 == 2.7 Frequency Plans ==
1206
1207
1208 The SDI-12-LB/LS uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.
1209
1210 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
1211
1212
1213 == 2.8 Firmware Change Log ==
1214
1215
1216 **Firmware download link:**
1217
1218 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1219
1220
1221
1222 == 2.9 Datalog Feature(Since v1.3.0) ==
1223
1224
1225 (((
1226 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, SDI-12-LB will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from SDI-12-LB.
1227 )))
1228
1229
1230 === 2.9.1 Ways to get datalog via LoRaWAN ===
1231
1232
1233 There are two methods:
1234
1235 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.8.4Pollsensorvalue"]] for specified time range.
1236
1237
1238 (% style="color:blue" %)**Method 2: **(%%)Set PNACKMD=1, SDI-12-LB will wait for ACK for every uplink, when there is no LoRaWAN network, SDI-12-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
1239
1240
1241 (% style="color:red" %)**Note for method 2:**
1242
1243 * a) SDI-12-LB will do an ACK check for data records sending to make sure every data arrive server.
1244 * b) SDI-12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but SDI-12-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if SDI-12-LB gets a ACK, SDI-12-LB will consider there is a network connection and resend all NONE-ACK Message.
1245
1246 === 2.9.2 Unix TimeStamp ===
1247
1248
1249 SDI-12-LB uses Unix TimeStamp format based on
1250
1251 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="image-20220523001219-11.png"]]
1252
1253
1254 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
1255
1256 Below is the converter example
1257
1258 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="image-20220523001219-12.png"]]
1259
1260 So, we can use AT+TIMESTAMP=1742889625 or downlink 3067E26299 to set the current time 2025 – March ~-~- 25 Tuesday  08:00:25
1261
1262
1263 === 2.9.3 Set Device Time ===
1264
1265
1266 (((
1267 (% style="color:blue" %)**There are two ways to set device's time:**
1268 )))
1269
1270 (((
1271 **1.  Through LoRaWAN MAC Command (Default settings)**
1272 )))
1273
1274 (((
1275 User need to set SYNCMOD=1 to enable sync time via MAC command.
1276 )))
1277
1278 (((
1279 Once SDI-12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to SDI-12-LB. If SDI-12-LB fails to get the time from the server, SDI-12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
1280 )))
1281
1282 (((
1283 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
1284 )))
1285
1286
1287 (((
1288 **2. Manually Set Time**
1289 )))
1290
1291 (((
1292 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
1293 )))
1294
1295
1296 === 2.9.4 Poll sensor value ===
1297
1298
1299 User can poll sensor value based on timestamps from the server. Below is the downlink command.
1300
1301 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:438.778px" %)
1302 |(% style="background-color:#4f81bd; color:white; width:59px" %)**1byte**|(% style="background-color:#4f81bd; color:white; width:123px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:114px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:142.778px" %)**1byte**
1303 |(% style="width:58px" %)31|(% style="width:123px" %)Timestamp start|(% style="width:114px" %)Timestamp end|(% style="width:137px" %)(((
1304 Uplink Interval(range 5~~255s)
1305 )))
1306
1307 Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
1308
1309 For example, downlink command (% _mstmutation="1" %)**31 68253B6E 68253E23 05**(%%)
1310
1311 Is to check 2025/05/15 00:55:10 to 2025/05/15 01:06:43's data
1312
1313 Uplink Internal =5s, means SDI-12-LB will send one packet every 5s.
1314
1315
1316 === 2.9.5 Datalog Uplink payload ===
1317
1318
1319 The Datalog poll reply uplink will use below payload format.
1320
1321 **Retrieval data payload:**
1322
1323 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
1324 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
1325 **Size(bytes)**
1326 )))|=(% style="width: 100px; background-color: rgb(79, 129, 189); color: white;" %)**4**|=(% style="width: 100px; background-color: rgb(79, 129, 189); color: white;" %)**1**|=(% style="width: 220px; background-color: rgb(79, 129, 189); color: white;" %)**Length depends on the return from the commands**
1327 |(% style="width:97px" %)Value|(% style="width:104px" %)Unix Time Stamp|(% style="width:109px" %)Payload Length|(% style="width:165px" %)Data returned by the sensor
1328
1329 **Example:**
1330
1331 If SDI-12-LB has below data inside Flash:
1332
1333 (Soil sensors using the SDI-12 protocol are used for testing.)
1334
1335 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1336 |=(% style="width: 88px; background-color:#4F81BD;color:white" %)Flash Add|=(% style="width: 98px; background-color: rgb(79, 129, 189); color: white;" %)**Unix Time**|=(% style="width: 82px; background-color: rgb(79, 129, 189); color: white;" %)Payload Length|=(% style="width: 86px; background-color: rgb(79, 129, 189); color: white;" %)**BAT voltage**|=(% style="width: 92px; background-color: rgb(79, 129, 189); color: white;" %)Payload Version|=(% style="width: 64px; background-color:#4F81BD;color:white" %)**Value**
1337 |(% style="width:89px" %)(((
1338 0001
1339 )))|(% style="width:98px" %)(((
1340 2025/3/25 08:09:30
1341 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1342 0c a8
1343 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1344 08 21
1345 )))
1346 |(% style="width:89px" %)0002|(% style="width:98px" %)(((
1347 2025/3/25 08:10:30
1348 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1349 0c ae
1350 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1351 08 22
1352 )))
1353 |(% style="width:89px" %)0003|(% style="width:98px" %)(((
1354 2025/3/25 08:11:30
1355 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1356 |(% style="width:89px" %)0004|(% style="width:98px" %)(((
1357 2025/3/25 08:12:30
1358 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1359 |(% style="width:89px" %)0005|(% style="width:98px" %)(((
1360 2025/3/25 08:13:30
1361 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1362 0c b4
1363 )))|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1364 |(% style="width:89px" %)0006|(% style="width:98px" %)(((
1365 2025/3/25 08:14:30
1366 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1367 |(% style="width:89px" %)0007|(% style="width:98px" %)(((
1368 2025/3/25 08:15:30
1369 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c b4|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1370 |(% style="width:89px" %)0008|(% style="width:98px" %)(((
1371 2025/3/25 08:16:30
1372 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1373
1374 If user sends below downlink command: (% style="background-color:yellow" %)3168253B6E68253E2305
1375
1376 Where : Start time: (% _mstmutation="1" %)68253B6E (%%)= time 2025/05/15 00:55:10
1377
1378 Stop time: (% _mstmutation="1" %)68253E23 (%%)= time 2025/05/15 01:06:43
1379
1380
1381 **SDI-12-LB will uplink this payload.**
1382
1383 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A **68253C5D120C7801F10D302B312E31372B32372E340D0A68253D33120C7201F10D302B312E31352B32382E390D0A68253DAB120C7201F10D302B312E31342B32392E340D0A68253E23120C7201F10D302B312E31332B33302E300D0A
1384
1385
1386 Where the first 23 bytes is for the first entry:
1387
1388 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A**
1389
1390 Unix Time Stamp: 68253B6E(H)=1747270510(D)  ~-~->  time=2025-05-15 8:55:00
1391
1392 Payload Length: 0x12(H)=18 bytes
1393
1394 Battery voltage: 0x0C78(H)=3192 mV
1395
1396 Payload Version:  01
1397
1398 Value: For the distance sensor used for testing, this value is the mm distance value, 0xF10D302B312E31372B32362E390D0A(H)
1399
1400
1401
1402 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1403
1404
1405 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1406
1407 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1408 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1409
1410 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1411
1412 * (% style="color:blue" %)**General Commands**.
1413
1414 These commands are to configure:
1415
1416 * General system settings like: uplink interval.
1417 * LoRaWAN protocol & radio related command.
1418
1419 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1420
1421 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
1422
1423
1424 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1425
1426 These commands only valid for SDI-12-LB/LS, as below:
1427
1428
1429 == 3.1 Set Transmit Interval Time ==
1430
1431
1432 Feature: Change LoRaWAN End Node Transmit Interval.
1433
1434 (% style="color:blue" %)**AT Command: AT+TDC**
1435
1436 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1437 |=(% style="width: 160px; background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 160px; background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Response**
1438 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1439 30000
1440 OK
1441 the interval is 30000ms = 30s
1442 )))
1443 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1444 OK
1445 Set transmit interval to 60000ms = 60 seconds
1446 )))
1447
1448 (% style="color:blue" %)**Downlink Command: 0x01**
1449
1450 Format: Command Code (0x01) followed by 3 bytes time value.
1451
1452 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1453
1454 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1455 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1456
1457 == 3.2 Set Interrupt Mode ==
1458
1459
1460 Feature, Set Interrupt mode for GPIO_EXIT.
1461
1462 (% style="color:blue" %)**AT Command: AT+INTMOD**
1463
1464 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1465 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 196px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Response**
1466 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1467 0
1468 OK
1469 the mode is 0 =Disable Interrupt
1470 )))
1471 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1472 Set Transmit Interval
1473 0. (Disable Interrupt),
1474 ~1. (Trigger by rising and falling edge)
1475 2. (Trigger by falling edge)
1476 3. (Trigger by rising edge)
1477 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1478
1479 (% style="color:blue" %)**Downlink Command: 0x06**
1480
1481 Format: Command Code (0x06) followed by 3 bytes.
1482
1483 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1484
1485 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1486 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1487
1488 == 3.3 Set the output time ==
1489
1490
1491 Feature, Control the output 3V3 , 5V or 12V.
1492
1493 (% style="color:blue" %)**AT Command: AT+3V3T**
1494
1495 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1496 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 201px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 120px;background-color:#4F81BD;color:white" %)**Response**
1497 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1498 0
1499 OK
1500 )))
1501 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=0|(% style="background-color:#f2f2f2; width:201px" %)Normally open 3V3 power supply.|(% style="background-color:#f2f2f2; width:116px" %)(((
1502 OK
1503 default setting
1504 )))
1505 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=1000|(% style="background-color:#f2f2f2; width:201px" %)Close after a delay of 1000 milliseconds.|(% style="background-color:#f2f2f2; width:116px" %)(((
1506 OK
1507 )))
1508 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=65535|(% style="background-color:#f2f2f2; width:201px" %)Normally closed 3V3 power supply.|(% style="background-color:#f2f2f2; width:116px" %)(((
1509 OK
1510 )))
1511
1512 (% style="color:blue" %)**AT Command: AT+5VT**
1513
1514 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1515 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 196px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 119px;background-color:#4F81BD;color:white" %)**Response**
1516 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1517 0
1518 OK
1519 )))
1520 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=0|(% style="background-color:#f2f2f2; width:196px" %)Normally closed 5V power supply.|(% style="background-color:#f2f2f2; width:114px" %)(((
1521 OK
1522 default setting
1523 )))
1524 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=1000|(% style="background-color:#f2f2f2; width:196px" %)Close after a delay of 1000 milliseconds.|(% style="background-color:#f2f2f2; width:114px" %)(((
1525 OK
1526 )))
1527 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=65535|(% style="background-color:#f2f2f2; width:196px" %)Normally open 5V power supply.|(% style="background-color:#f2f2f2; width:114px" %)(((
1528 OK
1529 )))
1530
1531 (% style="color:blue" %)**AT Command: AT+12VT **
1532
1533 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1534
1535 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1536 |=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 199px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 89px;background-color:#4F81BD;color:white" %)**Response**
1537 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1538 0
1539 OK
1540 )))
1541 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=0|(% style="background-color:#f2f2f2; width:199px" %)Normally closed 12V power supply.|(% style="background-color:#f2f2f2; width:83px" %)OK
1542 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=500|(% style="background-color:#f2f2f2; width:199px" %)Close after a delay of 500 milliseconds.|(% style="background-color:#f2f2f2; width:83px" %)(((
1543 OK
1544 )))
1545
1546 (% style="color:blue" %)**Downlink Command: 0x07**
1547
1548 Format: Command Code (0x07) followed by 3 bytes.
1549
1550 The first byte is which power, the second and third bytes are the time to turn on.
1551
1552 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1553 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1554 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1555 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1556 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1557 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1558
1559 == 3.4 Set the all data mode ==
1560
1561
1562 Feature, Set the all data mode.
1563
1564 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1565
1566 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1567 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1568 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1569 0
1570 OK
1571 )))
1572 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1573
1574 (% style="color:blue" %)**Downlink Command: 0xAB**
1575
1576 Format: Command Code (0xAB) followed by 1 bytes.
1577
1578 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1579 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1580
1581 == 3.5 Set the splicing payload for uplink ==
1582
1583
1584 Feature, splicing payload for uplink.
1585
1586 (% style="color:blue" %)**AT Command: AT+DATAUP**
1587
1588 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1589 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 266px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1590 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =?|(% style="background-color:#f2f2f2; width:266px" %)Show current splicing payload for uplink mode|(% style="background-color:#f2f2f2" %)(((
1591 0
1592 OK
1593 )))
1594 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1595 Set splicing payload for uplink mode is 0.
1596 )))|(% style="background-color:#f2f2f2" %)(((
1597 OK
1598 )))
1599 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1|(% style="background-color:#f2f2f2; width:266px" %)Set splicing payload for uplink mode is 1 , and the each splice uplink is sent sequentially.|(% style="background-color:#f2f2f2" %)OK
1600 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1601 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1602 )))|(% style="background-color:#f2f2f2" %)OK
1603
1604 (% style="color:blue" %)**Downlink Command: 0xAD**
1605
1606 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1607
1608 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1609 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1610 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1611
1612 This means that the interval is set to 0x000014=20S
1613
1614
1615 == 3.6 Set the payload version ==
1616
1617
1618 Feature, Set the payload version.
1619
1620 (% style="color:blue" %)**AT Command: AT+PAYVER**
1621
1622 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1623 |=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 192px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1624 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1625 1
1626 OK
1627 )))
1628 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=5|(% style="background-color:#f2f2f2; width:192px" %)Set payload version is 5.|(% style="background-color:#f2f2f2" %)OK
1629
1630 (% style="color:blue" %)**Downlink Command: 0xAE**
1631
1632 Format: Command Code (0xAE) followed by 1 bytes.
1633
1634 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1635 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1636
1637 === 3.7 Print data entries base on page(Since v1.3.0) ===
1638
1639
1640 Feature: Print the sector data from start page to stop page (max is 416 pages).
1641
1642 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1643
1644 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1645 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1646 |(% style="width:156px" %)(((
1647 AT+PDTA=1,2
1648 Print page 1 to 2
1649 )))|(% style="width:311px" %)(((
1650 Stop Tx and RTP events when read sensor data
1651
1652 8033330 2025/5/14 12:27:32 18 0c 84 01 f1 0d 30 2b 31 2e 30
1653
1654 8033340 38 2b 32 34 2e 36 0d 0a
1655
1656 8033350 2025/5/14 12:29:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1657
1658 8033360 38 2b 32 34 2e 36 0d 0a
1659
1660 8033370 2025/5/14 12:31:32 18 0c 78 01 f1 0d 30 2b 31 2e 30
1661
1662 8033380 38 2b 32 34 2e 36 0d 0a
1663
1664 8033390 2025/5/14 12:33:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1665
1666 80333A0 38 2b 32 34 2e 36 0d 0a
1667
1668 80333B0 2025/5/14 12:35:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1669
1670 80333C0 38 2b 32 34 2e 36 0d 0a
1671
1672
1673 OK
1674 )))
1675
1676 (% style="color:#4f81bd" %)**Downlink Command:**
1677
1678 No downlink commands for feature
1679
1680
1681 === 3.8 Print last few data entries(Since v1.3.0) ===
1682
1683
1684 Feature: Print the last few data entries
1685
1686 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1687
1688 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1689 |=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 192px;background-color:#4F81BD;color:white" %)**Function**
1690 |(% style="background-color:#f2f2f2; width:158px" %)AT+PLDTA=10,0|(% style="background-color:#f2f2f2; width:192px" %)Printing the last ten data in hex format
1691 |(% style="background-color:#f2f2f2; width:158px" %)AT+PLDTA=10,1|(% style="background-color:#f2f2f2; width:192px" %)Print the last ten data in string format
1692
1693 * Prints in hex format:
1694
1695 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1696 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1697 |(% style="width:156px" %)(((
1698 AT+PLDTA=10,0
1699 Print last 10 entries
1700 )))|(% style="width:311px" %)(((
1701 Stop Tx events when read sensor data
1702
1703 0001-0001 2025/5/16 06:48:04 7 0c 7e 01 00 5f 01 05
1704
1705 0002-0002 2025/5/16 06:50:04 7 0c 72 01 00 5f 01 05
1706
1707 0003-0003 2025/5/16 06:52:04 7 0c 72 01 00 5f 01 05
1708
1709 0004-0004 2025/5/16 06:54:04 7 0c 7e 01 00 5f 01 05
1710
1711 0005-0005 2025/5/16 06:56:04 7 0c 7e 01 00 5f 01 07
1712
1713 0006-0006 2025/5/16 06:58:04 7 0c 8a 01 00 60 01 07
1714
1715 0007-0007 2025/5/16 07:00:04 7 0c 84 01 00 61 01 07
1716
1717 0008-0008 2025/5/16 07:02:04 7 0c 72 01 00 61 01 07
1718
1719 0009-0009 2025/5/16 07:04:04 7 0c 78 01 00 61 01 07
1720
1721 0010-0010 2025/5/16 07:06:04 7 0c 78 01 00 61 01 07
1722
1723 Start Tx events
1724
1725 OK
1726 )))
1727
1728 * **Printing in String Format:**
1729
1730 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1731 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1732 |(% style="width:156px" %)(((
1733 AT+PLDTA=10,1
1734 Print last 10 entries
1735
1736 (((
1737 (Printing in String Format)
1738 )))
1739 )))|(% style="width:311px" %)(((
1740 Stop Tx events when read sensor data
1741
1742 0001-0001 2025/5/16 06:48:04 7 ~~_
1743
1744 0002-0002 2025/5/16 06:50:04 7 r_
1745
1746 0003-0003 2025/5/16 06:52:04 7 r_
1747
1748 0004-0004 2025/5/16 06:54:04 7 ~~_
1749
1750 0005-0005 2025/5/16 06:56:04 7 ~~_
1751
1752 0006-0006 2025/5/16 06:58:04 7 `
1753
1754 0007-0007 2025/5/16 07:00:04 7 a
1755
1756 0008-0008 2025/5/16 07:02:04 7 ra
1757
1758 0009-0009 2025/5/16 07:04:04 7 xa
1759
1760 0010-0010 2025/5/16 07:06:04 7 xa
1761
1762 Start Tx events
1763
1764 OK
1765 )))
1766
1767 (% style="color:#4f81bd" %)**Downlink Command:**
1768
1769 No downlink commands for feature
1770
1771
1772 === 3.9 Clear Flash Record(Since v1.3.0) ===
1773
1774
1775 Feature: Clear flash storage for data log feature.
1776
1777 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1778
1779 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1780 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:137px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:209px" %)**Response**
1781 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1782 Clear all stored sensor data…
1783
1784 OK
1785 )))
1786
1787 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1788
1789 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1790
1791
1792 == 3.10 SDI12 timing(Since v1.3.0) ==
1793
1794
1795 Feature: Get or set the time of SDI12 timing.
1796
1797 [[image:1747289896656-580.png||height="414" width="566"]]
1798
1799 (% style="color:#4f81bd" %)**AT Command: AT+SDITIMING**
1800
1801 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1802 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:167px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:177px" %)**Response**
1803 |(% style="width:155px" %)(((
1804 AT+SDITIMING=13,9
1805
1806
1807 )))|(% style="width:167px" %)Get or set the time of SDI12 timing|(% style="width:177px" %)(((
1808 OK
1809
1810 Default: 13,9
1811 )))
1812
1813 (% style="color:#4f81bd" %)**Downlink Command: 0xA9**
1814
1815 * Example: 0xA90D09  ~/~/  Same as AT+SDITIMING=13,9
1816
1817 = 4. Battery & Power Consumption =
1818
1819
1820 SDI-12-LB use ER26500 + SPC1520 battery pack and SDI-12-LS use 3000mAh Recharable Battery with Solar Panel. See below link for detail information about the battery info and how to replace.
1821
1822 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1823
1824
1825 = 5. Remote Configure device =
1826
1827 == 5.1 Connect via BLE ==
1828
1829
1830 Please see this instruction for how to configure via BLE: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]]
1831
1832
1833 == 5.2 AT Command Set ==
1834
1835
1836
1837 = 6. OTA firmware update =
1838
1839
1840 Please see this link for how to do OTA firmware update.
1841
1842 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
1843
1844
1845 = 7. FAQ =
1846
1847 == 7.1 How to use AT Command  via UART to access device? ==
1848
1849
1850 See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]
1851
1852
1853 == 7.2 How to update firmware via UART port? ==
1854
1855
1856 See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]
1857
1858
1859 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1860
1861
1862 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1863 When downloading the images, choose the required image file for download. ​
1864
1865
1866 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1867
1868
1869 This is due to The length of bytes sent by the node is limited by the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1870
1871 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1872
1873 [[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
1874
1875 Example:
1876
1877 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LN%20%E2%80%93%20RS485%20to%20LoRaWAN%20Converter/WebHome/image-20240620145456-1.png?rev=1.1||alt="image-20240620145456-1.png"]]
1878
1879 Please refer to the following command to fix DR
1880
1881 AT+ADR=0
1882
1883 AT+DR=3
1884
1885 Downlink command:
1886
1887 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
1888
1889
1890 = 8. ​Order Info =
1891
1892
1893 (((
1894 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1895 )))
1896
1897 (((
1898 (% style="color:blue" %)**XX**(%%): The default frequency band
1899 )))
1900
1901 (((
1902 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1903 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1904 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1905 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1906 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1907 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1908 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1909 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1910 )))
1911
1912 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1913
1914 * M12: M12 hole
1915 * M16: M16 hole
1916
1917 = 9. Packing Info =
1918
1919
1920 (% style="color:#037691" %)**Package Includes**:
1921
1922 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1923
1924 (% style="color:#037691" %)**Dimension and weight**:
1925
1926 * Device Size: cm
1927 * Device Weight: g
1928 * Package Size / pcs : cm
1929 * Weight / pcs : g
1930
1931 = 10. ​Support =
1932
1933
1934 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1935
1936 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]