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Xiaoling 2.2 1 (% style="text-align:center" %)
2 [[image:image-20230131183542-1.jpeg||height="694" width="694"]]
3
4 **Table of Contents:**
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Xiaoling 9.2 19 = 1. Introduction =
Xiaoling 2.2 20
Xiaoling 9.2 21 == 1.1 ​What is SDI-12 to LoRaWAN Converter ==
Xiaoling 2.2 22
23
Xiaoling 9.2 24 The Dragino **SDI-12-LB** is a **SDI-12 to LoRaWAN Converter **designed for Smart Agriculture solution.
25
Xiaoling 2.2 26 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.
27
28 **SDI-12-LB** 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.
29
30 The LoRa wireless technology used in **SDI-12-LB** 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.
31
32 **SDI-12-LB** is powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use up to 5 years.
33
34 Each **SDI-12-LB** 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.
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36
Xiaoling 9.2 37 [[image:image-20230201084414-1.png||height="464" width="1108"]]
Xiaoling 2.2 38
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41
42
43
Xiaoling 9.2 44 == ​1.2 Features ==
45
46
Xiaoling 2.2 47 * LoRaWAN 1.0.3 Class A
48 * Ultra-low power consumption
49 * Controllable 5v and 12v output to power external sensor
50 * SDI-12 Protocol to connect to SDI-12 Sensor
51 * Monitor Battery Level
52 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
53 * Support Bluetooth v5.1 and LoRaWAN remote configure.
54 * Support wireless OTA update firmware
55 * Uplink on periodically
56 * Downlink to change configure
57 * 8500mAh Battery for long term use
58
Xiaoling 9.2 59 == 1.3 Specification ==
Xiaoling 2.2 60
61
62 **Micro Controller:**
63
64 * MCU: 48Mhz ARM
65 * Flash: 256KB
66 * RAM: 64KB
67
68 **Common DC Characteristics:**
69
70 * Supply Voltage: 2.5v ~~ 3.6v
71 * Operating Temperature: -40 ~~ 85°C
72
73 **LoRa Spec:**
74
75 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
76 * Max +22 dBm constant RF output vs.
77 * RX sensitivity: down to -139 dBm.
78 * Excellent blocking immunity
79
80 **Current Input Measuring :**
81
82 * Range: 0 ~~ 20mA
83 * Accuracy: 0.02mA
84 * Resolution: 0.001mA
85
86 **Voltage Input Measuring:**
87
88 * Range: 0 ~~ 30v
89 * Accuracy: 0.02v
90 * Resolution: 0.001v
91
92 **Battery:**
93
94 * Li/SOCI2 un-chargeable battery
95 * Capacity: 8500mAh
96 * Self-Discharge: <1% / Year @ 25°C
97 * Max continuously current: 130mA
98 * Max boost current: 2A, 1 second
99
100 **Power Consumption**
101
102 * Sleep Mode: 5uA @ 3.3v
103 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
104
Xiaoling 9.2 105 == 1.4 Connect to SDI-12 Sensor ==
Xiaoling 2.2 106
107
108
Xiaoling 9.2 109 [[image:1675212538524-889.png]]
Xiaoling 2.2 110
111
Xiaoling 9.2 112 == 1.5 Sleep mode and working mode ==
Xiaoling 2.2 113
114
Xiaoling 9.2 115 **Deep Sleep Mode: **Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
Xiaoling 2.2 116
Xiaoling 9.2 117 **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.
Xiaoling 2.2 118
119
Xiaoling 9.2 120 == 1.6 Button & LEDs ==
Xiaoling 2.2 121
122
Xiaoling 9.2 123 [[image:1675212633011-651.png]]
Xiaoling 2.2 124
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Xiaoling 9.2 127 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
128 |=(% style="width: 167px;" %)**Behavior on ACT**|=(% style="width: 117px;" %)**Function**|=(% style="width: 225px;" %)**Action**
129 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
130 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
Xiaoling 2.2 131 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
132 )))
Xiaoling 9.2 133 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
134 (% style="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.
135 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
Xiaoling 2.2 136 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.
137 )))
Xiaoling 9.2 138 |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means PS-LB is in Deep Sleep Mode.
Xiaoling 2.2 139
Xiaoling 9.2 140 == 1.7 Pin Mapping ==
Xiaoling 2.2 141
142
Xiaoling 9.2 143 [[image:1675213198663-754.png]]
Xiaoling 2.2 144
145
Xiaoling 9.2 146 == 1.8 BLE connection ==
Xiaoling 2.2 147
Xiaoling 9.2 148
Xiaoling 2.2 149 SDI-12-LB support BLE remote configure.
150
151 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:
152
153 * Press button to send an uplink
154 * Press button to active device.
155 * Device Power on or reset.
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157 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
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159
Xiaoling 9.2 160 == 1.9 Mechanical ==
Xiaoling 2.2 161
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Xiaoling 9.2 166 [[image:image-20230201090139-2.png]]
Xiaoling 2.2 167
Xiaoling 9.2 168 [[image:image-20230201090139-3.png]]
Xiaoling 2.2 169
Xiaoling 9.2 170 [[image:image-20230201090139-4.png]]
Xiaoling 2.2 171
172
Xiaoling 19.2 173 = 2. Configure SDI-12 to connect to LoRaWAN network =
Xiaoling 9.2 174
Xiaoling 19.2 175 == 2.1 How it works ==
Xiaoling 9.2 176
177
Xiaoling 19.2 178 The SDI-12-LB is configured as **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. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
Xiaoling 9.2 179
Xiaoling 2.2 180
Xiaoling 19.2 181 == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
Xiaoling 2.2 182
183
184 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.
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186
Xiaoling 19.2 187 [[image:image-20230201090528-5.png||height="465" width="1111"]]
Xiaoling 2.2 188
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190 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.
191
192
193 **Step 1**: Create a device in TTN with the OTAA keys from SDI-12-LB.
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195 Each SDI-12-LB is shipped with a sticker with the default device EUI as below:
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Xiaoling 19.2 198 [[image:image-20230131134744-2.jpeg]]
Xiaoling 2.2 199
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204 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
205
206
207 **Register the device**
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Xiaoling 19.2 209 [[image:1675213652444-622.png]]
Xiaoling 2.2 210
211
212 **Add APP EUI and DEV EUI**
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Xiaoling 19.2 215 [[image:1675213661769-223.png]]
Xiaoling 2.2 216
217
218 **Add APP EUI in the application**
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Xiaoling 19.2 221 [[image:1675213675852-577.png]]
Xiaoling 2.2 222
223
224 **Add APP KEY**
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Xiaoling 19.2 226 [[image:1675213686734-883.png]]
Xiaoling 2.2 227
228
229 **Step 2**: Activate on SDI-12-LB
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231
232 Press the button for 5 seconds to activate the SDI-12-LB.
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234
235 **Green led** will fast blink 5 times, device will enter **OTA mode** for 3 seconds. And then start to JOIN LoRaWAN network. **Green led** will solidly turn on for 5 seconds after joined in network.
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237
Xiaoling 19.2 238 [[image:1675213704414-644.png]]
Xiaoling 2.2 239
240
Xiaoling 19.2 241 == ​2.3 SDI-12 Related Commands ==
Xiaoling 2.2 242
243
Xiaoling 19.2 244 User need to configure SDI-12-LB to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
Xiaoling 2.2 245
246
Xiaoling 27.2 247 === 2.3.1 ​​​​​​​Basic SDI-12 debug command ===
Xiaoling 2.2 248
249
250 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.
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252 If SDI-12 sensor return value after get these commands, //SDI-12-LB// will uplink the return on FPORT=100, otherwise, if there is no response from SDI-12 sensor. //SDI-12-LB// will uplink NULL (0x 4E 55 4C 4C) to server.
253
254 The following is the display information on the serial port and the server.
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257
Xiaoling 19.2 258 [[image:image-20230201091027-6.png]]
Xiaoling 2.2 259
Xiaoling 19.2 260
261 [[image:image-20230201091027-7.png||height="261" width="1179"]]
262
263
264 ==== **al!  ~-~- Get SDI-12 sensor Identification** ====
265
266
Xiaoling 2.2 267 * AT Command: AT+ADDRI=aa
268 * LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
269
Xiaoling 19.2 270 **Parameter:  **aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
Xiaoling 2.2 271
Xiaoling 19.2 272 **Example :  **AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
Xiaoling 2.2 273
274
275 The following is the display information on the serial port and the server.
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Xiaoling 19.2 278 [[image:image-20230201091257-8.png]]
Xiaoling 2.2 279
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Xiaoling 19.2 281 [[image:image-20230201091257-9.png||height="225" width="1242"]]
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Xiaoling 27.2 284 ==== **aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!** ====
Xiaoling 2.2 285
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Xiaoling 27.2 287 **aM! **: Start Non-Concurrent Measurement
Xiaoling 2.2 288
Xiaoling 27.2 289 **aMC! **: Start Non-Concurrent Measurement – Request CRC
Xiaoling 2.2 290
Xiaoling 27.2 291 **aM1!- aM9! **: Additional Measurements
Xiaoling 2.2 292
Xiaoling 27.2 293 **aMC1!- aMC9!** : Additional Measurements – Request CRC
Xiaoling 2.2 294
Xiaoling 27.2 295
Xiaoling 2.2 296 * AT Command : AT+ADDRM=0,1,0,1
297 * LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
298
299 Downlink:AA 01 aa bb cc dd
300
Xiaoling 27.2 301 **aa**: SDI-12 sensor address.
Xiaoling 2.2 302
Xiaoling 27.2 303 **bb**: 0: no CRC, 1: request CRC
Xiaoling 2.2 304
Xiaoling 27.2 305 **cc**: 1-9: Additional Measurement, 0: no additional measurement
Xiaoling 2.2 306
Xiaoling 27.2 307 **dd**: delay (in second) to send **aD0!** to get return.
Xiaoling 2.2 308
309
310 The following is the display information on the serial port and the server.
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312
Xiaoling 27.2 313 [[image:image-20230201091630-10.png]]
Xiaoling 2.2 314
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Xiaoling 27.2 316 [[image:image-20230201091630-11.png||height="247" width="1165"]]
Xiaoling 2.2 317
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Xiaoling 27.2 320 ==== **aC!, aCC!,  aC1!- aC9!,  aCC1!- aCC9! ** ====
Xiaoling 2.2 321
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Xiaoling 27.2 323 **aC!** : Start Concurrent Measurement
Xiaoling 2.2 324
Xiaoling 27.2 325 **aCC!** : Start Concurrent Measurement – Request CRC
Xiaoling 2.2 326
Xiaoling 27.2 327 **aC1!- aC9!** : Start Additional Concurrent Measurements
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329 **aCC1!- aCC9!** : Start Additional Concurrent Measurements – Request CRC
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331
Xiaoling 2.2 332 * AT Command : AT+ADDRC=0,1,0,1 
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334 * LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
335
336 Downlink: AA 02 aa bb cc dd
337
Xiaoling 27.2 338 **aa**: SDI-12 sensor address.
Xiaoling 2.2 339
Xiaoling 27.2 340 **bb**: 0: no CRC, 1: request CRC
Xiaoling 2.2 341
Xiaoling 27.2 342 **cc**: 1-9: Additional Measurement, 0: no additional measurement
Xiaoling 2.2 343
Xiaoling 27.2 344 **dd**: delay (in second) to send **aD0!** to get return.
Xiaoling 2.2 345
346
347 The following is the display information on the serial port and the server.
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349
Xiaoling 27.2 350 [[image:image-20230201091954-12.png]]
Xiaoling 2.2 351
352
Xiaoling 27.2 353 [[image:image-20230201091954-13.png||height="203" width="1117"]]
Xiaoling 2.2 354
Xiaoling 27.2 355
356 (% style="display:none" %) (%%)
357
358 ==== **aR0!- aR9!,  aRC0!- aRC9!** ====
359
360
Xiaoling 2.2 361 Start Continuous Measurement
362
363 Start Continuous Measurement – Request CRC
364
365
366 * AT Command : AT+ADDRR=0,1,0,1 
367 * LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
368
369 Downlink: AA 03 aa bb cc dd
370
Xiaoling 27.2 371 **aa**: SDI-12 sensor address.
Xiaoling 2.2 372
Xiaoling 27.2 373 **bb**: 0: no CRC, 1: request CRC
Xiaoling 2.2 374
Xiaoling 27.2 375 **cc**: 1-9: Additional Measurement, 0: no additional measurement
Xiaoling 2.2 376
Xiaoling 27.2 377 **dd**: delay (in second) to send **aD0!** to get return.
Xiaoling 2.2 378
379
380 The following is the display information on the serial port and the server.
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383
Xiaoling 27.2 384 [[image:image-20230201092208-14.png]]
Xiaoling 2.2 385
Xiaoling 27.2 386
387 [[image:image-20230201092208-15.png||height="214" width="1140"]]
388
389
390 === ​​​​​​​2.3.2 Advance SDI-12 Debug command ===
391
392
Xiaoling 2.2 393 This command can be used to debug all SDI-12 command.
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395
396 LoRaWAN Downlink: A8 aa xx xx xx xx bb cc
397
Xiaoling 27.2 398 **aa **: total SDI-12 command length
Xiaoling 2.2 399
Xiaoling 27.2 400 **xx **: SDI-12 command
Xiaoling 2.2 401
Xiaoling 27.2 402 **bb **: Delay to wait for return
Xiaoling 2.2 403
Xiaoling 27.2 404 **cc **: 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
Xiaoling 2.2 405
406
Xiaoling 27.2 407 **Example: **AT+CFGDEV =0RC0!,1
Xiaoling 2.2 408
Xiaoling 27.2 409 **0RC0! **: SDI-12 Command,
Xiaoling 2.2 410
Xiaoling 27.2 411 **1 **: Delay 1 second.  ( 0: 810 mini-second)
Xiaoling 2.2 412
413 Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
414
415
416 The following is the display information on the serial port and the server.
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418
Xiaoling 27.2 419 [[image:image-20230201092355-16.png]]
Xiaoling 2.2 420
421
Xiaoling 27.2 422 [[image:image-20230201092355-17.png||height="426" width="1135"]]
423
Xiaoling 9.2 424 1.
Xiaoling 2.2 425 11.
426 111. Convert ASCII to String
427
428 This command is used to convert between ASCII and String format.
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430
431 AT+CONVFORM ( Max length: 80 bytes)
432
433 Example:
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435 1)AT+CONVFORM=0,string   Convert String from String to ASCII
436
437 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
438
439
440 2)AT+CONVFORM=1,ASCII   Convert ASCII to String.
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442 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
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444
445
Xiaoling 9.2 446 1.
Xiaoling 2.2 447 11.
448 111. Define periodically SDI-12 commands and uplink.
449
450 AT+COMMANDx & AT+DATACUTx
451
452 User can define max 15 SDI-12 Commands (AT+COMMAND1 ~~ AT+COMMANDF). On each uplink period (TDC time, default 20 minutes), SDI-12-LB will send these SDI-12 commands and wait for return from SDI-12 sensors. SDI-12-LB will then combine these returns and uplink via LoRaWAN.
453
454
455 * ** AT Command:**
456
457 **AT+COMMANDx=var1,var2,var3,var4.**
458
459 var1: SDI-12 command , for example: 0RC0!
460
461 var2: Wait timeout for return. (unit: second)
462
463 var3: Whether to send //addrD0!// to get return after var2 timeout. 0: Don’t Send //addrD0!//; 1: Send //addrD0!//.
464
465 var4: validation check for return. If return invalid, SDI-12-LB will resend this command. Max 2 retries.
466
467 0  No validation check;
468
469 1  Check if return chars are printable char(0x20 ~~ 0x7E);
470
471 2  Check if there is return from SDI-12 sensor
472
473 3  Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
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475
476 Each AT+COMMANDx is followed by a **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.
477
478
479 **AT+DATACUTx** : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
480
481 |(((
482 AT+DATACUTx=a,b,c
483
484 a: length for the return of AT+COMMAND
485
486 b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
487
488 c: define the position for valid value. 
489 )))
490
491 For example, if return from AT+COMMAND1 is “013METER   TER12 112T12-00024895” ,. Below AT+DATACUT1 will get different result to combine payload:
492
493
494 |AT+DATACUT1 value|Final Result to combine Payload
495 |34,1,1+2+3|0D 00 01 30 31 33
496 |34,2,1~~8+12~~16|0D 00 01 30 31 33 4D 45 54 45 52 54 45 52 31 32
497 |34,2,1~~34|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
498
499 * ** Downlink Payload:**
500
501 **0xAF**  downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
502
503
504 **Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
505
506
507 Format: ** AF MM NN LL XX XX XX XX YY**
508
509 Where:
510
511 * MM: the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
512 * NN:  1: set the AT+DATACUT value ; 2: set the AT+DATACUT value.
513 * LL:  The length of AT+COMMAND or AT+DATACUT command
514 * XX XX XX XX: AT+COMMAND or AT+DATACUT command
515 * YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command. 
516
517 Example:
518
Xiaoling 9.2 519 **AF 03 01 07 30 4D 43 21 01 01 01 00**: Same as AT+COMMAND3=**0MC!**,** 1**,** 1**,** 1**
Xiaoling 2.2 520
521 **AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
522
523 **AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
524
525
526 **Clear SDI12 Command**
527
528 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
529
530
531 * ** AT Command:**
532
533 **~ AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
534
535
536 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
537
538
539 * ** Downlink Payload:**
540
541 **~ 0x09 aa bb**  same as AT+CMDEAR=aa,bb
542
543
544
545
546 **command combination**
547
548 Below shows a screen shot how the results combines together to a uplink payload.
549
550 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
551
552
553 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.
554
555 **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.
556
557
558 For example: as below photo, AT+ALLDATAMOD=1, but AT+DATACUT1 has been set, AT+DATACUT1 will be still effect the result.
559
560
561 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
562
563
564 If AT+ALLDATAMOD=1, **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.
565
566
567
568 **Compose Uplink**
569
570 **AT+DATAUP=0**
571
572 Compose the uplink payload with value returns in sequence and send with A SIGNLE UPLINK.
573
574 Final Payload is Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
575
576 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
577
578
579 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
580
581
582 **AT+DATAUP=1**
583
584 Compose the uplink payload with value returns in sequence and send with Multiply UPLINKs.
585
586 Final Payload is
587
588 **Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
589
590 1. Battery Info (2 bytes): Battery voltage
591 1. PAYVER (1 byte): Defined by AT+PAYVER
592 1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
593 1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
594 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
595
596 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
597
598
599 **Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
600
601 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
602
603 * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
604
605 * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
606
607 ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
608
609 *** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
610
611 **~ When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value.**
612
613 1.
614 11. Uplink Payload
615
616 Uplink payloads have two types:
617
618 * Distance Value: Use FPORT=2
619 * Other control commands: Use other FPORT fields.
620
621 The application server should parse the correct value based on FPORT settings.
622
623
624 1.
625 11.
626 111. Device Payload, FPORT=5
627
628 Include device configure status. Once SDI-12-LB Joined the network, it will uplink this message to the server.
629
630
631 Users can also use the downlink command(0x26 01) to ask SDI-12-LB to resend this uplink.
632
633
634 |(% colspan="6" %)**Device Status (FPORT=5)**
635 |**Size (bytes)**|**1**|**2**|**1**|**1**|**2**
636 |**Value**|Sensor Model|Firmware Version|Frequency Band|Sub-band|BAT
637
638 Example parse in TTNv3
639
640 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]]
641
642 **Sensor Model**: For SDI-12-LB, this value is 0x17
643
644 **Firmware Version**: 0x0100, Means: v1.0.0 version
645
646 **Frequency Band**:
647
648 *0x01: EU868
649
650 *0x02: US915
651
652 *0x03: IN865
653
654 *0x04: AU915
655
656 *0x05: KZ865
657
658 *0x06: RU864
659
660 *0x07: AS923
661
662 *0x08: AS923-1
663
664 *0x09: AS923-2
665
666 *0x0a: AS923-3
667
668 *0x0b: CN470
669
670 *0x0c: EU433
671
672 *0x0d: KR920
673
674 *0x0e: MA869
675
676
677 **Sub-Band**:
678
679 AU915 and US915:value 0x00 ~~ 0x08
680
681 CN470: value 0x0B ~~ 0x0C
682
683 Other Bands: Always 0x00
684
685
686 **Battery Info**:
687
688 Check the battery voltage.
689
690 Ex1: 0x0B45 = 2885mV
691
692 Ex2: 0x0B49 = 2889mV
693
694
695 1.
696 11.
697 111. Uplink Payload, FPORT=2
698
699 There are different cases for uplink. See below
700
701 * SDI-12 Debug Command return: FPORT=100
702
703 * Periodically Uplink: FPORT=2
704
705 |(((
706 **Size**
707
708 **(bytes)**
709 )))|**2**|**1**|**Length depends on the return from the commands**
710 |**Value**|(((
711 Battery(mV)
712
713 &
714
715 Interrupt_Flag
716 )))|[[PAYLOAD_VER>>path:#Probe_Model]]|(((
717 If the valid payload is too long and exceed the maximum support
718
719 Payload length in server,server will show payload not provided in the LoRaWAN server.
720 )))
721
722 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
723
724
725
Xiaoling 9.2 726 1.
Xiaoling 2.2 727 11.
728 111. Battery Info
729
730 Check the battery voltage for SDI-12-LB.
731
732 Ex1: 0x0B45 = 2885mV
733
734 Ex2: 0x0B49 = 2889mV
735
736
737 1.
738 11.
739 111. Interrupt Pin
740
741 This data field shows if this packet is generated by **Interrupt Pin** or not. [[Click here>>path:#Int_mod]] for the hardware and software set up. Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>path:#pins]].
742
743
744 Example:
745
746 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
747
748 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
749
750
751 1.
752 11.
753 111. Payload version
754
755
756
757
758
759 1.
760 11.
761 111. ​Decode payload in The Things Network
762
763 While using TTN network, you can add the payload format to decode the payload.
764
765 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]]
766
767
768 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.
769
770
771 下面的解码生成超链接放进去.
772
773 function Decoder(bytes, port) {
774
775 if(port==5)
776
777 {
778
779 var freq_band;
780
781 var sub_band;
782
783 var sensor;
784
785
786 if(bytes[0]==0x17)
787
788 sensor= "SDI12-LB";
789
790
791 var firm_ver= (bytes[1]&0x0f)+'.'+(bytes[2]>>4&0x0f)+'.'+(bytes[2]&0x0f);
792
793
794 if(bytes[3]==0x01)
795
796 freq_band="EU868";
797
798 else if(bytes[3]==0x02)
799
800 freq_band="US915";
801
802 else if(bytes[3]==0x03)
803
804 freq_band="IN865";
805
806 else if(bytes[3]==0x04)
807
808 freq_band="AU915";
809
810 else if(bytes[3]==0x05)
811
812 freq_band="KZ865";
813
814 else if(bytes[3]==0x06)
815
816 freq_band="RU864";
817
818 else if(bytes[3]==0x07)
819
820 freq_band="AS923";
821
822 else if(bytes[3]==0x08)
823
824 freq_band="AS923_1";
825
826 else if(bytes[3]==0x09)
827
828 freq_band="AS923_2";
829
830 else if(bytes[3]==0x0A)
831
832 freq_band="AS923_3";
833
834 else if(bytes[3]==0x0F)
835
836 freq_band="AS923_4";
837
838 else if(bytes[3]==0x0B)
839
840 freq_band="CN470";
841
842 else if(bytes[3]==0x0C)
843
844 freq_band="EU433";
845
846 else if(bytes[3]==0x0D)
847
848 freq_band="KR920";
849
850 else if(bytes[3]==0x0E)
851
852 freq_band="MA869";
853
854
855 if(bytes[4]==0xff)
856
857 sub_band="NULL";
858
859 else
860
861 sub_band=bytes[4];
862
863
864 var bat= (bytes[5]<<8 | bytes[6])/1000;
865
866
867 return {
868
869 SENSOR_MODEL:sensor,
870
871 FIRMWARE_VERSION:firm_ver,
872
873 FREQUENCY_BAND:freq_band,
874
875 SUB_BAND:sub_band,
876
877 BAT:bat,
878
879 }
880
881 }
882
883 else if(port==100)
884
885 {
886
887 var datas_sum={};
888
889 for(var j=0;j<bytes.length;j++)
890
891 {
892
893 var datas= String.fromCharCode(bytes[j]);
894
895 if(j=='0')
896
897 datas_sum.datas_sum=datas;
898
899 else
900
901 datas_sum.datas_sum+=datas;
902
903 }
904
905
906 return datas_sum;
907
908 }
909
910 else
911
912 {
913
914 var decode={};
915
916 decode.EXTI_Trigger= (bytes[0] & 0x80)? "TRUE":"FALSE";  
917
918 decode.BatV= ((bytes[0]<<8 | bytes[1])&0x7FFF)/1000;
919
920 decode.Payver= bytes[2];
921
922 for(var i=3;i<bytes.length;i++)
923
924 {
925
926 var data= String.fromCharCode(bytes[i]);
927
928 if(i=='3')
929
930 decode.data_sum=data;
931
932 else
933
934 decode.data_sum+=data;
935
936 }
937
938 return decode; 
939
940 }
941
942
943 }
944
945
946 1.
947 11. Uplink Interval
948
949 The SDI-12-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
950
951 [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval]]
952
953
954
955 1.
956 11. Frequency Plans
957
958 The SDI12-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
959
960
961 [[https:~~/~~/wiki.dragino.com/index.php?title=End_Device_Frequency_Band>>url:https://wiki.dragino.com/index.php?title=End_Device_Frequency_Band]]
962
963
964
965 1.
966 11. Firmware Change Log
967
968 **Firmware download link:**
969
970 [[https:~~/~~/www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0>>url:https://www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0]]
971
972
973
974 1. Configure SDI-12-LB via AT Command or LoRaWAN Downlink
975
976 Use can configure SDI-12-LB via AT Command or LoRaWAN Downlink.
977
978 * AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
979 * LoRaWAN Downlink instruction for different platforms:
980
981 [[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server>>url:http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server]]
982
983
984 There are two kinds of commands to configure SDI-12-LB, they are:
985
986 * **General Commands**.
987
988 These commands are to configure:
989
990 * General system settings like: uplink interval.
991 * LoRaWAN protocol & radio related command.
992
993 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
994
995 [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
996
997
998 * **Commands special design for SDI-12-LB**
999
1000 These commands only valid for SDI-12-LB, as below:
1001
1002
1003
1004 1.
1005 11. Set Transmit Interval Time
1006
1007 Feature: Change LoRaWAN End Node Transmit Interval.
1008
1009 **AT Command: AT+TDC**
1010
1011 |**Command Example**|**Function**|**Response**
1012 |AT+TDC=?|Show current transmit Interval|(((
1013 30000
1014
1015 OK
1016
1017 the interval is 30000ms = 30s
1018 )))
1019 |AT+TDC=60000|Set Transmit Interval|(((
1020 OK
1021
1022 Set transmit interval to 60000ms = 60 seconds
1023 )))
1024
1025 **Downlink Command: 0x01**
1026
1027 Format: Command Code (0x01) followed by 3 bytes time value.
1028
1029 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1030
1031 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1032 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1033
1034 1.
1035 11. Set Interrupt Mode
1036
1037 Feature, Set Interrupt mode for GPIO_EXIT.
1038
1039 **AT Command: AT+INTMOD**
1040
1041 |**Command Example**|**Function**|**Response**
1042 |AT+INTMOD=?|Show current interrupt mode|(((
1043 0
1044
1045 OK
1046
1047 the mode is 0 = No interruption
1048 )))
1049 |AT+INTMOD=2|(((
1050 Set Transmit Interval
1051
1052 1. (Disable Interrupt),
1053 1. (Trigger by rising and falling edge),
1054 1. (Trigger by falling edge)
1055 1. (Trigger by rising edge)
1056 )))|OK
1057
1058 **Downlink Command: 0x06**
1059
1060 Format: Command Code (0x06) followed by 3 bytes.
1061
1062 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1063
1064 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1065 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1066
1067 1.
1068 11. Set the output time
1069
1070 Feature, Control the output 3V3 , 5V or 12V.
1071
1072 **AT Command: AT+3V3T**
1073
1074 |**Command Example**|**Function**|**Response**
1075 |AT+3V3T=?|Show 3V3 open time.|(((
1076 0
1077
1078 OK
1079 )))
1080 |AT+3V3T=0|Normally open 3V3 power supply.|(((
1081 OK
1082
1083 default setting
1084 )))
1085 |AT+3V3T=1000|Close after a delay of 1000 milliseconds.|(((
1086 OK
1087
1088
1089 )))
1090 |AT+3V3T=65535|Normally closed 3V3 power supply.|(((
1091 OK
1092
1093
1094 )))
1095
1096 **AT Command: AT+5VT**
1097
1098 |**Command Example**|**Function**|**Response**
1099 |AT+5VT=?|Show 5V open time.|(((
1100 0
1101
1102 OK
1103 )))
1104 |AT+5VT=0|Normally closed 5V power supply.|(((
1105 OK
1106
1107 default setting
1108 )))
1109 |AT+5VT=1000|Close after a delay of 1000 milliseconds.|(((
1110 OK
1111
1112
1113 )))
1114 |AT+5VT=65535|Normally open 5V power supply.|(((
1115 OK
1116
1117
1118 )))
1119
1120 **AT Command: AT+12VT**
1121
1122 |**Command Example**|**Function**|**Response**
1123 |AT+12VT=?|Show 12V open time.|(((
1124 0
1125
1126 OK
1127 )))
1128 |AT+12VT=0|Normally closed 12V power supply.|OK
1129 |AT+12VT=500|Close after a delay of 500 milliseconds.|(((
1130 OK
1131
1132
1133 )))
1134
1135 **Downlink Command: 0x07**
1136
1137 Format: Command Code (0x07) followed by 3 bytes.
1138
1139 The first byte is which power, the second and third bytes are the time to turn on.
1140
1141 * Example 1: Downlink Payload: 070101F4  -> AT+3V3T=500
1142 * Example 2: Downlink Payload: 0701FFFF   -> AT+3V3T=65535
1143 * Example 3: Downlink Payload: 070203E8  -> AT+5VT=1000
1144 * Example 4: Downlink Payload: 07020000  -> AT+5VT=0
1145 * Example 5: Downlink Payload: 070301F4  -> AT+12VT=500
1146 * Example 6: Downlink Payload: 07030000  -> AT+12VT=0
1147
1148 1.
1149 11. Set the all data mode
1150
1151 Feature, Set the all data mode.
1152
1153 **AT Command: AT+ALLDATAMOD**
1154
1155 |**Command Example**|**Function**|**Response**
1156 |AT+ALLDATAMOD=?|Show current all data mode|(((
1157 0
1158
1159
1160 OK
1161 )))
1162 |AT+ALLDATAMOD=1|Set all data mode is 1.|OK
1163
1164 **Downlink Command: 0xAB**
1165
1166 Format: Command Code (0xAB) followed by 1 bytes.
1167
1168 * Example 1: Downlink Payload: AB 00 ~/~/ AT+ALLDATAMOD=0
1169 * Example 2: Downlink Payload: AB 01 ~/~/ AT+ALLDATAMOD=1
1170
1171 1.
1172 11. Set the splicing payload for uplink
1173
1174 Feature, splicing payload for uplink.
1175
1176 **AT Command: AT+DATAUP**
1177
1178 |**Command Example**|**Function**|**Response**
1179 |AT+DATAUP =?|Show current splicing payload for uplink mode|(((
1180 0
1181
1182
1183 OK
1184 )))
1185 |AT+DATAUP =0|(((
1186 Set splicing payload for uplink mode is 0.
1187
1188
1189 )))|(((
1190 OK
1191
1192
1193 )))
1194 |AT+DATAUP =1|Set splicing payload for uplink mode is 1 , and the each splice uplink is sent sequentially.|OK
1195 |AT+DATAUP =1,20000|(((
1196 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1197
1198
1199 )))|OK
1200
1201 **Downlink Command: 0xAD**
1202
1203 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1204
1205 * Example 1: Downlink Payload: AD 00 ~/~/ AT+DATAUP=0
1206 * Example 2: Downlink Payload: AD 01 ~/~/ AT+DATAUP =1
1207 * Example 3: Downlink Payload: AD 01 00 00 14~/~/ AT+DATAUP =1,20000
1208
1209 This means that the interval is set to 0x000014=20S
1210
1211
1212 1.
1213 11. Set the payload version
1214
1215 Feature, Set the payload version.
1216
1217 **AT Command: AT+PAYVER**
1218
1219 |**Command Example**|**Function**|**Response**
1220 |AT+PAYVER=?|Show current payload version|(((
1221 1
1222
1223
1224 OK
1225 )))
1226 |AT+PAYVER=5|Set payload version is 5.|OK
1227
1228 **Downlink Command: 0xAE**
1229
1230 Format: Command Code (0xAE) followed by 1 bytes.
1231
1232 * Example 1: Downlink Payload: AE 01 ~/~/ AT+PAYVER=1
1233 * Example 2: Downlink Payload: AE 05 ~/~/ AT+PAYVER=5
1234
1235 1. Battery & how to replace
1236 11. Battery Type
1237
1238 SDI-12-LB is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
1239
1240
1241 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1242
1243 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1244
1245
1246 Minimum Working Voltage for the SDI-12-LB:
1247
1248 SDI-12-LB:  2.45v ~~ 3.6v
1249
1250
1251 1.
1252 11. Replace Battery
1253
1254 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1255
1256 And make sure the positive and negative pins match.
1257
1258
1259
1260 1.
1261 11. Power Consumption Analyze
1262
1263 Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
1264
1265
1266 Instruction to use as below:
1267
1268
1269 Step 1: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1270
1271 [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
1272
1273
1274 Step 2: Open it and choose
1275
1276 * Product Model
1277 * Uplink Interval
1278 * Working Mode
1279
1280 And the Life expectation in difference case will be shown on the right.
1281
1282 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image037.png]]
1283
1284
1285 The battery related documents as below:
1286
1287 * [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1288 * [[Lithium-Thionyl Chloride Battery>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet-EN.pdf]] datasheet, [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet_PM-ER18505-S-02-LF_EN.pdf]]
1289 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
1290
1291 |(((
1292 JST-XH-2P connector
1293 )))
1294
1295 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1296
1297
1298
Xiaoling 9.2 1299 1.
Xiaoling 2.2 1300 11.
1301 111. ​Battery Note
1302
1303 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
1304
1305
1306 1.
1307 11.
1308 111. ​Replace the battery
1309
1310 You can change the battery in the SDI-12-LB.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
1311
1312
1313 The default battery pack of SDI-12-LB includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
1314
1315
1316
1317
1318
1319
1320 1. Remote Configure device
1321 11. Connect via BLE
1322
1323 Please see this instruction for how to configure via BLE:
1324
1325 [[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/]]
1326
1327
1328 1.
1329 11. AT Command Set
1330
1331 1. OTA firmware update
1332
1333 Please see this link for how to do OTA firmware update.
1334
1335 [[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/]]
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347 1. ​Order Info
1348
1349 **Package Includes**:
1350
1351 * SDI-12-LB SDI-12 to LoRaWAN Converter
1352
1353 **Dimension and weight**:
1354
1355 * Device Size: cm
1356 * Device Weight: g
1357 * Package Size / pcs : cm
1358 * Weight / pcs : g
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1362 1. ​Support
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1364 * 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.
1365 * 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
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1367 [[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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