Version 141.1 by Xiaoling on 2025/04/16 15:48
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12 **Table of Contents:**
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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 ==
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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
182
183 === 1.9.2 for LS version ===
184
185
186 [[image:image-20250329133856-1.jpeg]]
187
188
189 = 2. Configure SDI-12 to connect to LoRaWAN network =
190
191 == 2.1 How it works ==
192
193
194 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.
195
196
197 == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
198
199
200 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.
201
202 [[image:image-20250416151346-2.png]]
203
204
205 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.
206
207
208 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from SDI-12-LB/LS.
209
210 Each SDI-12-LB/LS is shipped with a sticker with the default device EUI as below:
211
212 [[image:image-20230426084456-1.png||height="241" width="519"]]
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214
215 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
216
217 * **Create the application.**
218
219 [[image:image-20250329133946-2.jpeg]]
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221 [[image:image-20250329134001-3.jpeg]]
222
223
224 * **Add devices to the created Application.**
225
226 [[image:image-20250416154628-5.jpeg]]
227
228
229 * **Enter end device specifics manually.**
230
231 [[image:image-20250416154700-6.jpeg]]
232
233 [[image:image-20250416154716-7.jpeg]]
234
235
236 (% style="color:blue" %)**Step 2: **(%%)Add decoder
237
238 While using TTN network, you can add the payload format to decode the payload.
239
240 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.
241
242 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
243
244 Below is TTN screen shot:
245
246 [[image:image-20241118165746-3.png||height="470" width="869"]]
247
248 [[image:image-20241118165832-4.png||height="336" width="724"]]
249
250
251 (% style="color:blue" %)**Step 3**(%%): Activate on SDI-12-LB/LS
252
253 Press the button for 5 seconds to activate the SDI-12-LB/LS.
254
255 (% 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.
256
257 [[image:1675213704414-644.png||_mstalt="293748"]]
258
259
260 == ​2.3 SDI-12 Related Commands ==
261
262
263 User need to configure SDI-12-LB/LS to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
264
265 If you use UART to connect a computer, refer to the following connection methods:
266
267 [[image:image-20240823165402-1.jpeg||height="488" width="678"]]
268
269 Screenshot example:
270
271 [[image:image-20240823165526-2.png||height="489" width="690"]]
272
273
274
275 === 2.3.1 Basic SDI-12 debug command ===
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277
278 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.
279
280 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.
281
282 The following is the display information on the serial port and the server.
283
284
285 [[image:image-20230201091027-6.png||_mstalt="429065"]]
286
287
288 [[image:image-20230201091027-7.png||_mstalt="429429" height="261" width="1179"]]
289
290
291
292 ==== (% style="color:blue" %)**al!  ~-~- Get SDI-12 sensor Identification**(%%) ====
293
294
295 * AT Command: AT+ADDRI=aa
296 * LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
297
298 (% style="color:#037691" %)**Parameter:  **(%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
299
300 (% style="color:blue" %)**Example :   **(%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
301
302
303 The following is the display information on the serial port and the server.
304
305
306 [[image:image-20230201091257-8.png||_mstalt="431392"]]
307
308
309 [[image:image-20230201091257-9.png||_mstalt="431756" height="225" width="1242"]]
310
311
312 ==== (% style="color:blue" %)**aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!**(%%) ====
313
314
315 (% style="color:red" %)**aM! **(%%): Start Non-Concurrent Measurement
316
317 (% style="color:red" %)**aMC! **(%%): Start Non-Concurrent Measurement – Request CRC
318
319 (% style="color:red" %)**aM1!- aM9! **(%%): Additional Measurements
320
321 (% style="color:red" %)**aMC1!- aMC9!**(%%) : Additional Measurements – Request CRC
322
323
324 * AT Command : AT+ADDRM=0,1,0,1
325
326 * LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
327
328 Downlink：AA 01 aa bb cc dd
329
330 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
331
332 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
333
334 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
335
336 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
337
338
339 The following is the display information on the serial port and the server.
340
341
342 [[image:image-20230201091630-10.png||_mstalt="449995"]]
343
344
345 [[image:image-20230201091630-11.png||_mstalt="450372" height="247" width="1165"]]
346
347
348
349 ==== (% style="color:blue" %)**aC!, aCC!,  aC1!- aC9!,  aCC1!- aCC9! **(%%) ====
350
351
352 (% style="color:red" %)**aC!**(%%) : Start Concurrent Measurement
353
354 (% style="color:red" %)**aCC!** (%%): Start Concurrent Measurement – Request CRC
355
356 (% style="color:red" %)**aC1!- aC9!**(%%) : Start Additional Concurrent Measurements
357
358 (% style="color:red" %)**aCC1!- aCC9!**(%%) : Start Additional Concurrent Measurements – Request CRC
359
360
361 * AT Command : AT+ADDRC=0,1,0,1 
362
363 * LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
364
365 Downlink: AA 02 aa bb cc dd
366
367 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
368
369 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
370
371 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
372
373 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%)__ __to get return.
374
375
376 The following is the display information on the serial port and the server.
377
378
379 [[image:image-20230201091954-12.png||_mstalt="453687"]]
380
381
382 [[image:image-20230201091954-13.png||_mstalt="454064" height="203" width="1117"]]
383
384
385
386 ==== (% style="color:blue" %)**aR0!- aR9!,  aRC0!- aRC9!**(%%) ====
387
388
389 Start Continuous Measurement
390
391 Start Continuous Measurement – Request CRC
392
393
394 * AT Command : AT+ADDRR=0,1,0,1 
395 * LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
396
397 Downlink: AA 03 aa bb cc dd
398
399 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
400
401 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
402
403 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
404
405 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
406
407
408 The following is the display information on the serial port and the server.
409
410
411 [[image:image-20230201092208-14.png||_mstalt="452283"]]
412
413
414 [[image:image-20230201092208-15.png||_mstalt="452660" height="214" width="1140"]]
415
416
417 === 2.3.2 Advance SDI-12 Debug command ===
418
419
420 This command can be used to debug all SDI-12 command.
421
422
423 LoRaWAN Downlink: A8 aa xx xx xx xx bb cc dd
424
425 (% style="color:#037691" %)**aa **(%%): total SDI-12 command length
426
427 (% style="color:#037691" %)**xx **(%%): SDI-12 command
428
429 (% style="color:#037691" %)**bb **(%%): Delay to wait for return
430
431 (% style="color:#037691" %)**cc **(%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
432
433 (% style="color:#037691" %)**dd: **(%%) 0: Do not use aD0! command access, 1: use aD0! command access.
434
435
436 (% style="color:blue" %)**Example1: **(%%) AT+CFGDEV =0RC0!,1
437
438 (% style="color:#037691" %)**0RC0! **(%%): SDI-12 Command,
439
440 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
441
442 Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
443
444
445 The following is the display information on the serial port and the server.
446
447
448 [[image:image-20230201092355-16.png||_mstalt="453960"]]
449
450
451 [[image:image-20230201092355-17.png||_mstalt="454337" height="426" width="1135"]]
452
453
454 (% style="color:blue" %)**Example2: **(%%) AT+CFGDEV =0M!,1,1
455
456 (% style="color:#037691" %)**0M! **(%%): SDI-12 Command,
457
458 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
459
460 (% style="color:#037691" %)**1 **(%%): Use aD0! command access.
461
462 Equal Downlink: 0xA8 03 30  4D 21 01 01 01
463
464
465 The following is the display information on the serial port and the server.
466
467
468 [[image:image-20230628091055-1.png||height="368" width="462"]]
469
470 [[image:image-20230628091130-2.png||height="258" width="879"]]
471
472
473 === 2.3.3 Convert ASCII to String ===
474
475
476 This command is used to convert between ASCII and String format.
477
478 AT+CONVFORM ( Max length: 80 bytes)
479
480
481 (% style="color:blue" %)**Example:**
482
483 1) AT+CONVFORM=0, string Convert String from String to ASCII
484
485 [[image:1675214845056-885.png||_mstalt="297622"]]
486
487
488 2) AT+CONVFORM=1, ASCII Convert ASCII to String.
489
490 [[image:1675214856590-846.png||_mstalt="297739"]]
491
492
493 === 2.3.4 Define periodically SDI-12 commands and uplink. ===
494
495
496 AT+COMMANDx & AT+DATACUTx
497
498 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.
499
500
501 * (% style="color:blue" %)**AT Command:**
502
503 (% style="color:#037691" %)**AT+COMMANDx=var1,var2,var3,var4.**
504
505 (% style="color:red" %)**var1**(%%): SDI-12 command , for example: 0RC0!
506
507 (% style="color:red" %)**var2**(%%): Wait timeout for return. (unit: second)
508
509 (% style="color:red" %)**var3**(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//.
510
511 (% style="color:red" %)**var4**(%%): validation check for return. If return invalid, SDI-12-LB/LS will resend this command. Max 3 retries.
512
513 (% style="color:red" %)**0 **(%%) No validation check;
514
515 (% style="color:red" %)**1** (%%) Check if return chars are printable char(0x20 ~~ 0x7E);
516
517 (% style="color:red" %)**2**(%%)  Check if there is return from SDI-12 sensor
518
519 (% style="color:red" %)**3** (%%) Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
520
521
522 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.
523
524
525 (% style="color:blue" %)**AT+DATACUTx**(%%) : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
526
527 (% border="1" style="width:436px" %)
528 |(% style="background-color:#f2f2f2; width:433px" %)(((
529 (% style="color:#0070c0" %)**AT+DATACUTx=a,b,c**
530
531 **a**:  length for the return of AT+COMMAND
532
533 **b**: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
534
535 **c**:  define the position for valid value. 
536 )))
537
538 For example, if return from AT+COMMAND1 is “013METER   TER12 112T12-00024895<CR><LF>” , Below AT+DATACUT1 will get different result to combine payload:
539
540
541 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
542 |=(% style="width: 164px;background-color:#4F81BD;color:white" %)**AT+DATACUT1 value**|=(% style="width: 346px;background-color:#4F81BD;color:white" %)**Final Result to combine Payload**
543 |(% style="background-color:#f2f2f2; width:164px" %)34,1,1+2+3|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33
544 |(% 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
545 |(% 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
546
547 * (% style="color:blue" %)** Downlink Payload:**
548
549 (% style="color:blue" %)**0xAF**(%%)  downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
550
551
552 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
553
554
555 Format: ** (% style="color:#037691" %)AF MM NN LL XX XX XX XX YY(%%)**
556
557 Where:
558
559 * (% style="color:#037691" %)**MM **(%%): the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
560 * (% style="color:#037691" %)**NN **(%%):  1: set the AT+COMMAND value ; 2: set the AT+DATACUT value.
561 * (% style="color:#037691" %)**LL **(%%):  The length of AT+COMMAND or AT+DATACUT command
562 * (% style="color:#037691" %)**XX XX XX XX **(%%): AT+COMMAND or AT+DATACUT command
563 * (% 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. 
564
565 (% style="color:blue" %)**Example:**
566
567 [[image:image-20230201094129-18.png||_mstalt="455065"]]
568
569
570
571 (% style="color:blue" %)**Clear SDI12 Command**
572
573 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
574
575
576 * (% style="color:#037691" %)**AT Command:**
577
578 (% style="color:#4f81bd" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
579
580
581 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
582
583
584 * (% style="color:#037691" %)**Downlink Payload:**
585
586 (% style="color:#4f81bd" %)**0x09 aa bb**(%%)  same as AT+CMDEAR=aa,bb
587
588
589
590 (% style="color:blue" %)**command combination**
591
592 Below shows a screen shot how the results combines together to a uplink payload.
593
594 [[image:1675215745275-920.png||_mstalt="295334"]]
595
596
597 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.
598
599 (% 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.
600
601
602 (% 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.
603
604
605 [[image:1675215782925-448.png||_mstalt="297466"]]
606
607
608 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.
609
610
611 (% style="color:blue" %)**Compose Uplink**
612
613 (% style="color:#4f81bd" %)**AT+DATAUP=0**
614
615 Compose the uplink payload with value returns in sequence and send with **__A SIGNLE UPLINK__**.
616
617 Final Payload is **__Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx__**
618
619 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
620
621
622 [[image:1675215828102-844.png||_mstalt="294645"]]
623
624
625 (% style="color:#4f81bd" %)**AT+DATAUP=1**
626
627 Compose the uplink payload with value returns in sequence and send with **__Multiply UPLINKs__**.
628
629 Final Payload is __**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**__
630
631 1. Battery Info (2 bytes): Battery voltage
632 1. PAYVER (1 byte): Defined by AT+PAYVER
633 1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
634 1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
635 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
636
637 [[image:1675215848113-696.png||_mstalt="296998"]]
638
639
640 (% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
641
642 * For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
643 * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
644 * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
645 * For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
646
647 (% style="color:red" %)**When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
648
649 (% 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.**
650
651
652 == 2.4 Uplink Payload ==
653
654 === 2.4.1 Device Payload, FPORT~=5 ===
655
656
657 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
658
659 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
660
661 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
662 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
663 |(% 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**
664 |(% 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
665
666 Example parse in TTNv3
667
668 [[image:1675215946738-635.png||_mstalt="297778"]]
669
670
671 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
672
673 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
674
675 (% style="color:#037691" %)**Frequency Band**:
676
677 0x01: EU868
678
679 0x02: US915
680
681 0x03: IN865
682
683 0x04: AU915
684
685 0x05: KZ865
686
687 0x06: RU864
688
689 0x07: AS923
690
691 0x08: AS923-1
692
693 0x09: AS923-2
694
695 0x0a: AS923-3
696
697 0x0b: CN470
698
699 0x0c: EU433
700
701 0x0d: KR920
702
703 0x0e: MA869
704
705
706 (% style="color:#037691" %)**Sub-Band**:
707
708 AU915 and US915:value 0x00 ~~ 0x08
709
710 CN470: value 0x0B ~~ 0x0C
711
712 Other Bands: Always 0x00
713
714
715 (% style="color:#037691" %)**Battery Info**:
716
717 Check the battery voltage.
718
719 Ex1: 0x0B45 = 2885mV
720
721 Ex2: 0x0B49 = 2889mV
722
723
724 === 2.4.2 Uplink Payload, FPORT~=2 ===
725
726
727 There are different cases for uplink. See below
728
729 * SDI-12 Debug Command return: FPORT=100
730
731 * Periodically Uplink: FPORT=2
732
733 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
734 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
735 **Size(bytes)**
736 )))|=(% 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**
737 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
738 Battery(mV)
739 &
740 Interrupt_Flag
741 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
742 If the valid payload is too long and exceed the maximum support.
743 Payload length in server,server will show payload not provided in the LoRaWAN server.
744 )))
745
746 [[image:1675216282284-923.png||_mstalt="295633"]]
747
748
749 === 2.4.3 Battery Info ===
750
751
752 Check the battery voltage for SDI-12-LB/LS.
753
754 Ex1: 0x0B45 = 2885mV
755
756 Ex2: 0x0B49 = 2889mV
757
758
759 === 2.4.4 Interrupt Pin ===
760
761
762 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"]].
763
764 **Example:**
765
766 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
767
768 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
769
770
771 === 2.4.5 Payload version ===
772
773
774 The version number of the payload, mainly used for decoding. The default is 01.
775
776
777 === 2.4.6 ​Decode payload in The Things Network ===
778
779
780 While using TTN network, you can add the payload format to decode the payload.
781
782 [[image:1675216779406-595.png||_mstalt="298376"]]
783
784
785 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.
786
787 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
788
789
790 == 2.5 Uplink Interval ==
791
792
793 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:
794
795 [[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]]
796
797
798 == 2.6 Examples To Set SDI commands ==
799
800 === 2.6.1 Examples 1 ~-~- General Example ===
801
802
803 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
804
805 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
806
807
808 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
809
810 a. Send the first command and get the first reply：
811
812 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
813
814 b. Send the second command and get the second reply：
815
816 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
817
818 c. Send the third command and get the third reply：
819
820 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
821
822 d. Send the fourth command and get the fourth reply：
823
824 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
825
826 e. Send the fifth command plus the sixth command, get the sixth reply：
827
828 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
829
830 f. Send the seventh command plus the eighth command, get the eighth reply：
831
832 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
833
834 g. Send the ninth command plus the tenth command, get the tenth reply：
835
836 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
837
838 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
839
840 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
841
842
843 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
844
845 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
846
847 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
848
849 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
850
851 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
852
853 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
854
855 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
856
857 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
858
859 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
860
861 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
862
863 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"**.
864
865
866 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
867
868 ==== 2.6.2.1 Reference Manual and Command ====
869
870
871 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
872
873 * Commands to be used in PC and output.
874
875 ~1. check device address
876
877 2. change device address
878
879 3. check device ID
880
881 4. start measure
882
883 5. Get Meausre result
884
885 [[image:image-20230603120209-2.png||height="281" width="267"]]
886
887
888 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
889
890
891 [[image:image-20230603120515-3.png]]
892
893
894 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
895
896
897 [[image:image-20230603120648-4.png]]
898
899 [[image:image-20230603120726-5.png]]
900
901
902 **Data in TTN:**
903
904 [[image:image-20230603120859-6.png||height="118" width="1285"]]
905
906
907 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
908
909 ==== 2.6.3.1 Reference Manual and Command ====
910
911
912 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
913
914 * Commands to be used in PC and output.
915
916 ~1. check device address
917
918 2. change device address
919
920 3. check device ID
921
922 4. start measure
923
924 5. Get Meausre result
925
926 [[image:image-20230603121606-7.png||height="242" width="307"]]
927
928
929 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
930
931
932 [[image:image-20230603121643-8.png||height="442" width="656"]]
933
934
935 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
936
937
938 [[image:image-20230603121721-9.png]]
939
940 [[image:image-20230628090323-1.png||height="414" width="694"]]
941
942 Data in TTN:
943
944 [[image:image-20230603121826-11.png||height="155" width="1104"]]
945
946
947 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
948
949 ==== 2.6.4.1 Reference Manual and Command ====
950
951
952 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
953
954 * Commands to be used in PC and output.
955
956 1.check device address
957
958 2.change device address
959
960 3.check device ID
961
962 4.start measure
963
964 5.Get Meausre result
965
966 [[image:image-20230603122248-16.png||height="196" width="198"]]
967
968
969 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
970
971
972 [[image:image-20230603122212-15.png||height="502" width="667"]]
973
974
975 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
976
977
978 [[image:image-20230603122040-12.png]]
979
980 [[image:image-20230603122109-13.png||height="469" width="762"]]
981
982
983 **Data in TTN:**
984
985 [[image:image-20230603122139-14.png||height="148" width="1128"]]
986
987
988 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
989
990 ==== 2.6.5.1 Important Notice! ====
991
992
993 * The product page and reference command see above example 2,3,4
994
995 * 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.
996
997 * 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.
998
999 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1000
1001 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1002
1003
1004 [[image:image-20230603122508-17.png||height="526" width="742"]]
1005
1006
1007 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1008
1009
1010 [[image:image-20230603122549-18.png]]
1011
1012 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1013
1014
1015 **Data in TTN:**
1016
1017 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1018
1019
1020 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1021
1022 ==== 2.6.6.1 Reference Manual and Command ====
1023
1024
1025 * [[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]]
1026
1027 * Commands to be used in PC and output.
1028
1029 1.check device address
1030
1031 2.change device address
1032
1033 3.check device ID
1034
1035 4.start measure
1036
1037 5.Get Meausre result
1038
1039
1040 [[image:image-20230627174559-3.png]]
1041
1042
1043 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1044
1045
1046 [[image:image-20230627174446-2.png]]
1047
1048
1049 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1050
1051
1052 [[image:image-20230627175513-4.png||height="596" width="576"]]
1053
1054 [[image:image-20230627175736-5.png||height="429" width="693"]]
1055
1056
1057 **Data in TTN:**
1058
1059 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1060
1061
1062 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1063
1064 ==== 2.6.7.1  Reference Manual and Command ====
1065
1066
1067 * [[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]]
1068
1069 * Commands to be used in PC and output.
1070
1071 1. check device address
1072 1. change device address
1073 1. check device ID
1074 1. start measure
1075 1. Get Meausre result
1076
1077 [[image:image-20240423143921-1.png]]
1078
1079
1080 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1081
1082
1083 (% 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.)**
1084
1085 [[image:image-20240423145522-2.png||height="345" width="400"]]
1086
1087
1088 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1089
1090 [[image:image-20240423151202-3.png]]
1091
1092 (% class="wikigeneratedid" id="H" %)
1093 [[image:image-20240423162851-6.png||height="251" width="935"]]
1094
1095
1096 DATA in TTN:
1097
1098 [[image:image-20240423162322-4.png||height="269" width="933"]]
1099
1100
1101 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1102
1103 ==== 2.6.8.1  Reference Manual and Command ====
1104
1105
1106 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1107
1108 * Commands to be used in PC and output.
1109
1110 1. check device address
1111 1. change device address
1112 1. check device ID
1113 1. start measure
1114 1. Get Meausre result
1115
1116 [[image:image-20240903152650-3.png]]
1117
1118 [[image:image-20240903152627-2.png]]
1119
1120
1121 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1122
1123
1124 (% 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.)**
1125
1126 [[image:image-20240903153004-5.png||height="358" width="660"]]
1127
1128
1129 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1130
1131
1132 [[image:image-20240903153258-6.png]]
1133
1134 [[image:image-20240903153627-7.png]]
1135
1136 DATA in TTN:
1137
1138 [[image:image-20240903154020-10.png||height="467" width="961"]]
1139
1140
1141 == 2.7 Frequency Plans ==
1142
1143
1144 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.
1145
1146 [[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/]]
1147
1148
1149 == 2.8 Firmware Change Log ==
1150
1151
1152 **Firmware download link:**
1153
1154 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1155
1156
1157 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1158
1159
1160 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1161
1162 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1163 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1164
1165 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1166
1167 * (% style="color:blue" %)**General Commands**.
1168
1169 These commands are to configure:
1170
1171 * General system settings like: uplink interval.
1172 * LoRaWAN protocol & radio related command.
1173
1174 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1175
1176 [[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/]]
1177
1178
1179 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1180
1181 These commands only valid for SDI-12-LB/LS, as below:
1182
1183
1184 == 3.1 Set Transmit Interval Time ==
1185
1186
1187 Feature: Change LoRaWAN End Node Transmit Interval.
1188
1189 (% style="color:blue" %)**AT Command: AT+TDC**
1190
1191 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1192 |=(% 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**
1193 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1194 30000
1195 OK
1196 the interval is 30000ms = 30s
1197 )))
1198 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1199 OK
1200 Set transmit interval to 60000ms = 60 seconds
1201 )))
1202
1203 (% style="color:blue" %)**Downlink Command: 0x01**
1204
1205 Format: Command Code (0x01) followed by 3 bytes time value.
1206
1207 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1208
1209 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1210 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1211
1212 == 3.2 Set Interrupt Mode ==
1213
1214
1215 Feature, Set Interrupt mode for GPIO_EXIT.
1216
1217 (% style="color:blue" %)**AT Command: AT+INTMOD**
1218
1219 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1220 |=(% 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**
1221 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1222 0
1223 OK
1224 the mode is 0 =Disable Interrupt
1225 )))
1226 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1227 Set Transmit Interval
1228 0. (Disable Interrupt),
1229 ~1. (Trigger by rising and falling edge)
1230 2. (Trigger by falling edge)
1231 3. (Trigger by rising edge)
1232 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1233
1234 (% style="color:blue" %)**Downlink Command: 0x06**
1235
1236 Format: Command Code (0x06) followed by 3 bytes.
1237
1238 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1239
1240 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1241 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1242
1243 == 3.3 Set the output time ==
1244
1245
1246 Feature, Control the output 3V3 , 5V or 12V.
1247
1248 (% style="color:blue" %)**AT Command: AT+3V3T**
1249
1250 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1251 |=(% 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**
1252 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1253 0
1254 OK
1255 )))
1256 |(% 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" %)(((
1257 OK
1258 default setting
1259 )))
1260 |(% 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" %)(((
1261 OK
1262 )))
1263 |(% 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" %)(((
1264 OK
1265 )))
1266
1267 (% style="color:blue" %)**AT Command: AT+5VT**
1268
1269 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1270 |=(% 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**
1271 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1272 0
1273 OK
1274 )))
1275 |(% 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" %)(((
1276 OK
1277 default setting
1278 )))
1279 |(% 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" %)(((
1280 OK
1281 )))
1282 |(% 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" %)(((
1283 OK
1284 )))
1285
1286 (% style="color:blue" %)**AT Command: AT+12VT **
1287
1288 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1289
1290 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1291 |=(% 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**
1292 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1293 0
1294 OK
1295 )))
1296 |(% 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
1297 |(% 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" %)(((
1298 OK
1299 )))
1300
1301 (% style="color:blue" %)**Downlink Command: 0x07**
1302
1303 Format: Command Code (0x07) followed by 3 bytes.
1304
1305 The first byte is which power, the second and third bytes are the time to turn on.
1306
1307 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1308 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1309 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1310 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1311 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1312 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1313
1314 == 3.4 Set the all data mode ==
1315
1316
1317 Feature, Set the all data mode.
1318
1319 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1320
1321 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1322 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1323 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1324 0
1325 OK
1326 )))
1327 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1328
1329 (% style="color:blue" %)**Downlink Command: 0xAB**
1330
1331 Format: Command Code (0xAB) followed by 1 bytes.
1332
1333 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1334 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1335
1336 == 3.5 Set the splicing payload for uplink ==
1337
1338
1339 Feature, splicing payload for uplink.
1340
1341 (% style="color:blue" %)**AT Command: AT+DATAUP**
1342
1343 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1344 |=(% 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**
1345 |(% 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" %)(((
1346 0
1347 OK
1348 )))
1349 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1350 Set splicing payload for uplink mode is 0.
1351 )))|(% style="background-color:#f2f2f2" %)(((
1352 OK
1353 )))
1354 |(% 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
1355 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1356 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1357 )))|(% style="background-color:#f2f2f2" %)OK
1358
1359 (% style="color:blue" %)**Downlink Command: 0xAD**
1360
1361 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1362
1363 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1364 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1365 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1366
1367 This means that the interval is set to 0x000014=20S
1368
1369
1370 == 3.6 Set the payload version ==
1371
1372
1373 Feature, Set the payload version.
1374
1375 (% style="color:blue" %)**AT Command: AT+PAYVER**
1376
1377 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1378 |=(% 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**
1379 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1380 1
1381 OK
1382 )))
1383 |(% 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
1384
1385 (% style="color:blue" %)**Downlink Command: 0xAE**
1386
1387 Format: Command Code (0xAE) followed by 1 bytes.
1388
1389 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1390 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1391
1392 = 4. Battery & Power Consumption =
1393
1394
1395 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.
1396
1397 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1398
1399
1400 = 5. Remote Configure device =
1401
1402 == 5.1 Connect via BLE ==
1403
1404
1405 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/]]
1406
1407
1408 == 5.2 AT Command Set ==
1409
1410
1411
1412 = 6. OTA firmware update =
1413
1414
1415 Please see this link for how to do OTA firmware update.
1416
1417 [[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/]]
1418
1419
1420 = 7. FAQ =
1421
1422 == 7.1 How to use AT Command  via UART to access device? ==
1423
1424
1425 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]]
1426
1427
1428 == 7.2 How to update firmware via UART port? ==
1429
1430
1431 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]]
1432
1433
1434 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1435
1436
1437 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1438 When downloading the images, choose the required image file for download. ​
1439
1440
1441 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1442
1443
1444 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.
1445
1446 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1447
1448 [[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]]
1449
1450 Example:
1451
1452 [[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"]]
1453
1454 Please refer to the following command to fix DR
1455
1456 AT+ADR=0
1457
1458 AT+DR=3
1459
1460 Downlink command:
1461
1462 [[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]]
1463
1464
1465 = 8. ​Order Info =
1466
1467
1468 (((
1469 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1470 )))
1471
1472 (((
1473 (% style="color:blue" %)**XX**(%%): The default frequency band
1474 )))
1475
1476 (((
1477 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1478 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1479 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1480 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1481 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1482 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1483 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1484 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1485 )))
1486
1487 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1488
1489 * M12: M12 hole
1490 * M16: M16 hole
1491
1492 = 9. Packing Info =
1493
1494
1495 (% style="color:#037691" %)**Package Includes**:
1496
1497 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1498
1499 (% style="color:#037691" %)**Dimension and weight**:
1500
1501 * Device Size: cm
1502 * Device Weight: g
1503 * Package Size / pcs : cm
1504 * Weight / pcs : g
1505
1506 = 10. ​Support =
1507
1508
1509 * 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.
1510
1511 * 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]]

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