Wiki source code of SDI-12-LB -- SDI-12 to LoRaWAN Converter User Manual

Version 48.2 by Xiaoling on 2023/03/24 13:51

version	line-number	content
40.7	1	(% style="text-align:center" %)
47.1	2	[[image:image-20230131183542-1.jpeg\|\|_mstalt="470678" height="694" width="694"]]
2.2	3
	4	Table of Contents：
	5
40.7	6	{{toc/}}
2.2	7
	8
	9
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	15
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	18
	19
9.2	20	= 1. Introduction =
2.2	21
9.2	22	== 1.1 What is SDI-12 to LoRaWAN Converter ==
2.2	23
	24
41.13	25	(((
40.2	26	The Dragino (% style="color:blue" %)SDI-12-LB(%%) is a (% style="color:blue" %)SDI-12 to LoRaWAN Converter (%%)designed for Smart Agriculture solution.
41.13	27	)))
9.2	28
41.13	29	(((
2.2	30	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.
41.13	31	)))
2.2	32
41.13	33	(((
37.8	34	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.
41.13	35	)))
2.2	36
41.13	37	(((
37.8	38	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.
41.13	39	)))
2.2	40
41.13	41	(((
40.2	42	SDI-12-LB is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), it is designed for long term use up to 5 years.
41.13	43	)))
2.2	44
41.13	45	(((
37.8	46	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.
41.13	47	)))
2.2	48
	49
47.1	50	[[image:image-20230201084414-1.png\|\|_mstalt="427765" height="464" width="1108"]]
2.2	51
	52
9.2	53	== 1.2 Features ==
	54
	55
2.2	56	* LoRaWAN 1.0.3 Class A
	57	* Ultra-low power consumption
43.1	58	* Controllable 3.3v, 5v and 12v output to power external sensor
2.2	59	* SDI-12 Protocol to connect to SDI-12 Sensor
	60	* Monitor Battery Level
	61	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	62	* Support Bluetooth v5.1 and LoRaWAN remote configure.
	63	* Support wireless OTA update firmware
	64	* Uplink on periodically
	65	* Downlink to change configure
	66	* 8500mAh Battery for long term use
	67
47.2	68
48.2	69
9.2	70	== 1.3 Specification ==
2.2	71
	72
40.2	73	(% style="color:#037691" %)Micro Controller:
2.2	74
	75	* MCU: 48Mhz ARM
	76	* Flash: 256KB
	77	* RAM: 64KB
	78
40.2	79	(% style="color:#037691" %)Common DC Characteristics:
2.2	80
	81	* Supply Voltage: 2.5v ~~ 3.6v
45.1	82	* Support current: 5V 300mA
	83	12V 100mA
2.2	84	* Operating Temperature: -40 ~~ 85°C
	85
40.2	86	(% style="color:#037691" %)LoRa Spec:
2.2	87
	88	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	89	* Max +22 dBm constant RF output vs.
	90	* RX sensitivity: down to -139 dBm.
	91	* Excellent blocking immunity
	92
40.2	93	(% style="color:#037691" %)Current Input Measuring :
2.2	94
	95	* Range: 0 ~~ 20mA
	96	* Accuracy: 0.02mA
	97	* Resolution: 0.001mA
	98
40.2	99	(% style="color:#037691" %)Voltage Input Measuring:
2.2	100
	101	* Range: 0 ~~ 30v
	102	* Accuracy: 0.02v
	103	* Resolution: 0.001v
	104
40.2	105	(% style="color:#037691" %)Battery:
2.2	106
	107	* Li/SOCI2 un-chargeable battery
	108	* Capacity: 8500mAh
	109	* Self-Discharge: <1% / Year @ 25°C
	110	* Max continuously current: 130mA
	111	* Max boost current: 2A, 1 second
	112
40.2	113	(% style="color:#037691" %)Power Consumption
2.2	114
	115	* Sleep Mode: 5uA @ 3.3v
	116	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	117
47.2	118
48.2	119
9.2	120	== 1.4 Connect to SDI-12 Sensor ==
2.2	121
	122
	123
47.1	124	[[image:1675212538524-889.png\|\|_mstalt="298272"]]
2.2	125
	126
9.2	127	== 1.5 Sleep mode and working mode ==
2.2	128
	129
40.2	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.
2.2	131
40.2	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.
2.2	133
	134
9.2	135	== 1.6 Button & LEDs ==
2.2	136
	137
47.1	138	[[image:1675212633011-651.png\|\|_mstalt="291538"]]
2.2	139
	140
9.2	141	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
41.14	142	\|=(% style="width: 167px;" %)Behavior on ACT\|=(% style="width: 109px;" %)Function\|=(% style="width: 231px;" %)Action
	143	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:109px" %)Send an uplink\|(% style="width:231px" %)(((
9.2	144	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
2.2	145	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	146	)))
41.14	147	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:109px" %)Active Device\|(% style="width:231px" %)(((
9.2	148	(% 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.
	149	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
2.2	150	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.
	151	)))
43.1	152	\|(% style="width:167px" %)Fast press ACT 5 times.\|(% style="width:109px" %)Deactivate Device\|(% style="width:231px" %)(% style="color:red" %)Red led(%%) will solid on for 5 seconds. Means SDI-12-LB is in Deep Sleep Mode.
2.2	153
47.2	154
48.2	155
9.2	156	== 1.7 Pin Mapping ==
2.2	157
	158
47.1	159	[[image:1675213198663-754.png\|\|_mstalt="297167"]]
2.2	160
	161
9.2	162	== 1.8 BLE connection ==
2.2	163
9.2	164
2.2	165	SDI-12-LB support BLE remote configure.
	166
	167	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:
	168
	169	* Press button to send an uplink
	170	* Press button to active device.
	171	* Device Power on or reset.
	172
	173	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	174
	175
9.2	176	== 1.9 Mechanical ==
2.2	177
	178
47.1	179	[[image:image-20230201090139-2.png\|\|_mstalt="428623"]]
2.2	180
47.1	181	[[image:image-20230201090139-3.png\|\|_mstalt="428987"]]
2.2	182
47.1	183	[[image:image-20230201090139-4.png\|\|_mstalt="429351"]]
2.2	184
	185
19.2	186	= 2. Configure SDI-12 to connect to LoRaWAN network =
9.2	187
19.2	188	== 2.1 How it works ==
9.2	189
	190
40.2	191	The SDI-12-LB 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. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
9.2	192
2.2	193
19.2	194	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
2.2	195
	196
	197	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.
	198
	199
47.1	200	[[image:image-20230201090528-5.png\|\|_mstalt="430300" height="465" width="1111"]]
2.2	201
	202
	203	The LPS8V2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
	204
	205
40.2	206	(% style="color:blue" %)Step 1(%%): Create a device in TTN with the OTAA keys from SDI-12-LB.
2.2	207
	208	Each SDI-12-LB is shipped with a sticker with the default device EUI as below:
	209
	210
47.1	211	[[image:image-20230201152430-20.jpeg\|\|_mstalt="492245"]]
2.2	212
	213
	214	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	215
	216
40.2	217	(% style="color:blue" %)Register the device
2.2	218
47.1	219	[[image:1675213652444-622.png\|\|_mstalt="293657"]]
2.2	220
	221
40.2	222	(% style="color:blue" %)Add APP EUI and DEV EUI
2.2	223
	224
47.1	225	[[image:1675213661769-223.png\|\|_mstalt="295217"]]
2.2	226
	227
40.2	228	(% style="color:blue" %)Add APP EUI in the application
2.2	229
	230
47.1	231	[[image:1675213675852-577.png\|\|_mstalt="297947"]]
2.2	232
	233
40.2	234	(% style="color:blue" %)Add APP KEY
2.2	235
47.1	236	[[image:1675213686734-883.png\|\|_mstalt="298064"]]
2.2	237
	238
40.2	239	(% style="color:blue" %)Step 2(%%): Activate on SDI-12-LB
2.2	240
	241
	242	Press the button for 5 seconds to activate the SDI-12-LB.
	243
40.2	244	(% 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.
2.2	245
	246
47.1	247	[[image:1675213704414-644.png\|\|_mstalt="293748"]]
2.2	248
	249
19.2	250	== 2.3 SDI-12 Related Commands ==
2.2	251
	252
19.2	253	User need to configure SDI-12-LB to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
2.2	254
	255
29.2	256	=== 2.3.1 Basic SDI-12 debug command ===
2.2	257
	258
	259	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.
	260
	261	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.
	262
	263	The following is the display information on the serial port and the server.
	264
	265
47.1	266	[[image:image-20230201091027-6.png\|\|_mstalt="429065"]]
2.2	267
19.2	268
47.1	269	[[image:image-20230201091027-7.png\|\|_mstalt="429429" height="261" width="1179"]]
19.2	270
	271
41.4	272
40.2	273	==== (% style="color:blue" %)al! ~-~- Get SDI-12 sensor Identification(%%) ====
19.2	274
	275
2.2	276	* AT Command: AT+ADDRI=aa
	277	* LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
	278
40.2	279	(% style="color:#037691" %)Parameter: (%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
2.2	280
41.4	281	(% style="color:blue" %)Example : (%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
2.2	282
	283
	284	The following is the display information on the serial port and the server.
	285
	286
47.1	287	[[image:image-20230201091257-8.png\|\|_mstalt="431392"]]
2.2	288
	289
47.1	290	[[image:image-20230201091257-9.png\|\|_mstalt="431756" height="225" width="1242"]]
19.2	291
	292
40.2	293	==== (% style="color:blue" %)aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!(%%) ====
2.2	294
	295
40.2	296	(% style="color:red" %)aM! (%%): Start Non-Concurrent Measurement
2.2	297
40.2	298	(% style="color:red" %)aMC! (%%): Start Non-Concurrent Measurement – Request CRC
2.2	299
40.2	300	(% style="color:red" %)aM1!- aM9! (%%): Additional Measurements
2.2	301
40.2	302	(% style="color:red" %)aMC1!- aMC9!(%%) : Additional Measurements – Request CRC
2.2	303
27.2	304
2.2	305	* AT Command : AT+ADDRM=0,1,0,1
37.10	306
2.2	307	* LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
	308
	309	Downlink：AA 01 aa bb cc dd
	310
40.2	311	(% style="color:#037691" %)aa(%%): SDI-12 sensor address.
2.2	312
40.2	313	(% style="color:#037691" %)bb(%%): 0: no CRC, 1: request CRC
2.2	314
40.2	315	(% style="color:#037691" %)cc(%%): 1-9: Additional Measurement, 0: no additional measurement
2.2	316
41.5	317	(% style="color:#037691" %)dd(%%): delay (in second) to send (% style="color:#037691" %)__aD0!__(%%) to get return.
2.2	318
	319
	320	The following is the display information on the serial port and the server.
	321
	322
47.1	323	[[image:image-20230201091630-10.png\|\|_mstalt="449995"]]
2.2	324
	325
47.1	326	[[image:image-20230201091630-11.png\|\|_mstalt="450372" height="247" width="1165"]]
2.2	327
	328
	329
40.2	330	==== (% style="color:blue" %)aC!, aCC!, aC1!- aC9!, aCC1!- aCC9! (%%) ====
2.2	331
	332
40.2	333	(% style="color:red" %)aC!(%%) : Start Concurrent Measurement
2.2	334
40.2	335	(% style="color:red" %)aCC! (%%): Start Concurrent Measurement – Request CRC
2.2	336
40.2	337	(% style="color:red" %)aC1!- aC9!(%%) : Start Additional Concurrent Measurements
27.2	338
40.2	339	(% style="color:red" %)aCC1!- aCC9!(%%) : Start Additional Concurrent Measurements – Request CRC
27.2	340
	341
2.2	342	* AT Command : AT+ADDRC=0,1,0,1
	343
	344	* LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
	345
	346	Downlink: AA 02 aa bb cc dd
	347
40.2	348	(% style="color:#037691" %)aa(%%): SDI-12 sensor address.
2.2	349
40.2	350	(% style="color:#037691" %)bb(%%): 0: no CRC, 1: request CRC
2.2	351
40.2	352	(% style="color:#037691" %)cc(%%): 1-9: Additional Measurement, 0: no additional measurement
2.2	353
41.5	354	(% style="color:#037691" %)dd(%%): delay (in second) to send (% style="color:#037691" %)__aD0!__(%%)__ __to get return.
2.2	355
	356
	357	The following is the display information on the serial port and the server.
	358
	359
47.1	360	[[image:image-20230201091954-12.png\|\|_mstalt="453687"]]
2.2	361
	362
47.1	363	[[image:image-20230201091954-13.png\|\|_mstalt="454064" height="203" width="1117"]]
2.2	364
27.2	365
	366
	367
40.2	368	==== (% style="color:blue" %)aR0!- aR9!, aRC0!- aRC9!(%%) ====
27.2	369
37.10	370
2.2	371	Start Continuous Measurement
	372
	373	Start Continuous Measurement – Request CRC
	374
	375
	376	* AT Command : AT+ADDRR=0,1,0,1
	377	* LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
	378
	379	Downlink: AA 03 aa bb cc dd
	380
40.2	381	(% style="color:#037691" %)aa(%%): SDI-12 sensor address.
2.2	382
40.2	383	(% style="color:#037691" %)bb(%%): 0: no CRC, 1: request CRC
2.2	384
40.2	385	(% style="color:#037691" %)cc(%%): 1-9: Additional Measurement, 0: no additional measurement
2.2	386
41.5	387	(% style="color:#037691" %)dd(%%): delay (in second) to send (% style="color:#037691" %)__aD0!__(%%) to get return.
2.2	388
	389
	390	The following is the display information on the serial port and the server.
	391
	392
47.1	393	[[image:image-20230201092208-14.png\|\|_mstalt="452283"]]
2.2	394
27.2	395
47.1	396	[[image:image-20230201092208-15.png\|\|_mstalt="452660" height="214" width="1140"]]
27.2	397
	398
37.2	399	=== 2.3.2 Advance SDI-12 Debug command ===
27.2	400
	401
2.2	402	This command can be used to debug all SDI-12 command.
	403
	404
	405	LoRaWAN Downlink: A8 aa xx xx xx xx bb cc
	406
40.2	407	(% style="color:#037691" %)aa (%%): total SDI-12 command length
2.2	408
40.2	409	(% style="color:#037691" %)xx (%%): SDI-12 command
2.2	410
40.2	411	(% style="color:#037691" %)bb (%%): Delay to wait for return
2.2	412
40.2	413	(% style="color:#037691" %)cc (%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
2.2	414
	415
40.2	416	(% style="color:blue" %)Example: (%%) AT+CFGDEV =0RC0!,1
2.2	417
40.2	418	(% style="color:#037691" %)0RC0! (%%): SDI-12 Command,
2.2	419
40.2	420	(% style="color:#037691" %)1 (%%): Delay 1 second. ( 0: 810 mini-second)
2.2	421
	422	Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
	423
	424
	425	The following is the display information on the serial port and the server.
	426
	427
47.1	428	[[image:image-20230201092355-16.png\|\|_mstalt="453960"]]
2.2	429
	430
47.1	431	[[image:image-20230201092355-17.png\|\|_mstalt="454337" height="426" width="1135"]]
27.2	432
29.2	433
	434	=== 2.3.3 Convert ASCII to String ===
	435
	436
2.2	437	This command is used to convert between ASCII and String format.
	438
	439	AT+CONVFORM ( Max length: 80 bytes)
	440
	441
40.2	442	(% style="color:blue" %)Example:
2.2	443
29.2	444	1) AT+CONVFORM=0, string Convert String from String to ASCII
2.2	445
47.1	446	[[image:1675214845056-885.png\|\|_mstalt="297622"]]
2.2	447
	448
29.2	449	2) AT+CONVFORM=1, ASCII Convert ASCII to String.
2.2	450
47.1	451	[[image:1675214856590-846.png\|\|_mstalt="297739"]]
2.2	452
29.2	453
	454	=== 2.3.4 Define periodically SDI-12 commands and uplink. ===
	455
	456
2.2	457	AT+COMMANDx & AT+DATACUTx
	458
	459	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.
	460
	461
40.2	462	* (% style="color:blue" %)AT Command:
2.2	463
40.2	464	(% style="color:#037691" %)AT+COMMANDx=var1,var2,var3,var4.
2.2	465
40.2	466	(% style="color:red" %)var1(%%): SDI-12 command , for example: 0RC0!
2.2	467
40.2	468	(% style="color:red" %)var2(%%): Wait timeout for return. (unit: second)
2.2	469
40.2	470	(% style="color:red" %)var3(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//.
2.2	471
44.1	472	(% style="color:red" %)var4(%%): validation check for return. If return invalid, SDI-12-LB will resend this command. Max 3 retries.
2.2	473
40.2	474	(% style="color:red" %)0 (%%) No validation check;
2.2	475
40.2	476	(% style="color:red" %)1 (%%) Check if return chars are printable char(0x20 ~~ 0x7E);
2.2	477
41.5	478	(% style="color:red" %)2(%%) Check if there is return from SDI-12 sensor
2.2	479
40.2	480	(% style="color:red" %)3 (%%) Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
2.2	481
	482
40.2	483	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.
2.2	484
	485
40.2	486	(% style="color:blue" %)AT+DATACUTx(%%) : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
2.2	487
29.2	488	(% border="1" style="background-color:#f7faff; width:436px" %)
	489	\|(% style="width:433px" %)(((
35.2	490	AT+DATACUTx=a,b,c
2.2	491
29.2	492	a: length for the return of AT+COMMAND
2.2	493
37.11	494	b: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
2.2	495
29.2	496	c: define the position for valid value.
2.2	497	)))
	498
43.1	499	For example, if return from AT+COMMAND1 is “013METER TER12 112T12-00024895<CR><LF>” , Below AT+DATACUT1 will get different result to combine payload:
2.2	500
	501
35.2	502	(% border="1" cellspacing="4" style="background-color:#f7faff; width:510px" %)
41.15	503	\|=(% style="width: 164px;" %)AT+DATACUT1 value\|=(% style="width: 344px;" %)Final Result to combine Payload
	504	\|(% style="width:164px" %)34,1,1+2+3\|(% style="width:344px" %)0D 00 01 30 31 33
	505	\|(% style="width:164px" %)34,2,1~~8+12~~16\|(% style="width:344px" %)0D 00 01 30 31 33 4D 45 54 45 52 54 45 52 31 32
	506	\|(% style="width:164px" %)34,2,1~~34\|(% style="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
2.2	507
40.2	508	* (% style="color:blue" %) Downlink Payload:
2.2	509
40.2	510	(% style="color:blue" %)0xAF(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
2.2	511
	512
40.2	513	(% style="color:red" %)Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
2.2	514
	515
40.2	516	Format: (% style="color:#037691" %)AF MM NN LL XX XX XX XX YY(%%)
2.2	517
	518	Where:
	519
40.2	520	* (% style="color:#037691" %)MM (%%): the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
43.1	521	* (% style="color:#037691" %)NN (%%): 1: set the AT+COMMAND value ; 2: set the AT+DATACUT value.
40.2	522	* (% style="color:#037691" %)LL (%%): The length of AT+COMMAND or AT+DATACUT command
	523	* (% style="color:#037691" %)XX XX XX XX (%%): AT+COMMAND or AT+DATACUT command
43.1	524	* (% style="color:#037691" %)YY (%%): If YY=0, SDI-12-LB will execute the downlink command without uplink; if YY=1, SDI-12-LB will execute an uplink after got this command.
2.2	525
40.2	526	(% style="color:blue" %)Example:
2.2	527
47.1	528	[[image:image-20230201094129-18.png\|\|_mstalt="455065"]]
2.2	529
	530
41.16	531
40.2	532	(% style="color:blue" %)Clear SDI12 Command
2.2	533
	534	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	535
	536
40.2	537	* (% style="color:#037691" %)AT Command:
2.2	538
40.2	539	(% style="color:#4f81bd" %)AT+CMDEAR=mm,nn (%%) mm: start position of erase ,nn: stop position of erase
2.2	540
	541
	542	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	543
	544
40.2	545	* (% style="color:#037691" %) Downlink Payload:
2.2	546
40.2	547	(% style="color:#4f81bd" %)0x09 aa bb(%%) same as AT+CMDEAR=aa,bb
2.2	548
	549
	550
40.2	551	(% style="color:blue" %)command combination
2.2	552
	553	Below shows a screen shot how the results combines together to a uplink payload.
	554
47.1	555	[[image:1675215745275-920.png\|\|_mstalt="295334"]]
2.2	556
	557
35.2	558	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.
2.2	559
40.2	560	(% 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.
2.2	561
	562
41.7	563	(% 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.
2.2	564
	565
47.1	566	[[image:1675215782925-448.png\|\|_mstalt="297466"]]
2.2	567
	568
40.2	569	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.
2.2	570
	571
	572
41.17	573	(% style="color:blue" %)Compose Uplink
2.2	574
40.2	575	(% style="color:#4f81bd" %)AT+DATAUP=0
2.2	576
41.8	577	Compose the uplink payload with value returns in sequence and send with __A SIGNLE UPLINK__.
2.2	578
41.8	579	Final Payload is __Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx__
2.2	580
	581	Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	582
	583
47.1	584	[[image:1675215828102-844.png\|\|_mstalt="294645"]]
2.2	585
	586
40.2	587	(% style="color:#4f81bd" %)AT+DATAUP=1
2.2	588
41.8	589	Compose the uplink payload with value returns in sequence and send with __Multiply UPLINKs__.
2.2	590
41.8	591	Final Payload is __Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA__
2.2	592
	593	1. Battery Info (2 bytes): Battery voltage
	594	1. PAYVER (1 byte): Defined by AT+PAYVER
	595	1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
	596	1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	597	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
	598
47.1	599	[[image:1675215848113-696.png\|\|_mstalt="296998"]]
2.2	600
	601
40.2	602	(% style="color:red" %)Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
2.2	603
35.2	604	* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	605	* For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	606	* For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	607	* For all other bands: max 51 bytes for each uplink ( so 51 -5 = 46 max valid date).
2.2	608
40.2	609	(% style="color:red" %)When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;
2.2	610
40.2	611	(% 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.
2.2	612
	613
40.7	614	== 2.4 Uplink Payload ==
2.2	615
37.2	616	=== 2.4.1 Device Payload, FPORT~=5 ===
2.2	617
37.2	618
2.2	619	Include device configure status. Once SDI-12-LB Joined the network, it will uplink this message to the server.
	620
	621	Users can also use the downlink command(0x26 01) to ask SDI-12-LB to resend this uplink.
	622
41.17	623	(% border="1" cellspacing="4" style="background-color:#f7faff; width:420px" %)
35.2	624	\|(% colspan="6" style="width:434px" %)Device Status (FPORT=5)
41.17	625	\|(% style="width:114px" %)Size(bytes)\|(% style="width:39px" %)1\|(% style="width:80px" %)2\|(% style="width:89px" %)1\|(% style="width:59px" %)1\|(% style="width:37px" %)2
	626	\|(% style="width:114px" %)Value\|(% style="width:39px" %)Sensor Model\|(% style="width:80px" %)Firmware Version\|(% style="width:89px" %)Frequency Band\|(% style="width:59px" %)Sub-band\|(% style="width:37px" %)BAT
2.2	627
	628	Example parse in TTNv3
	629
47.1	630	[[image:1675215946738-635.png\|\|_mstalt="297778"]]
2.2	631
37.2	632
40.2	633	(% style="color:#037691" %)Sensor Model(%%): For SDI-12-LB, this value is 0x17
2.2	634
40.2	635	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
2.2	636
40.2	637	(% style="color:#037691" %)Frequency Band:
2.2	638
	639	*0x01: EU868
	640
	641	*0x02: US915
	642
	643	*0x03: IN865
	644
	645	*0x04: AU915
	646
	647	*0x05: KZ865
	648
	649	*0x06: RU864
	650
	651	*0x07: AS923
	652
	653	*0x08: AS923-1
	654
	655	*0x09: AS923-2
	656
	657	*0x0a: AS923-3
	658
	659	*0x0b: CN470
	660
	661	*0x0c: EU433
	662
	663	*0x0d: KR920
	664
	665	*0x0e: MA869
	666
	667
40.2	668	(% style="color:#037691" %)Sub-Band:
2.2	669
	670	AU915 and US915:value 0x00 ~~ 0x08
	671
	672	CN470: value 0x0B ~~ 0x0C
	673
	674	Other Bands: Always 0x00
	675
	676
40.2	677	(% style="color:#037691" %)Battery Info:
2.2	678
	679	Check the battery voltage.
	680
	681	Ex1: 0x0B45 = 2885mV
	682
	683	Ex2: 0x0B49 = 2889mV
	684
	685
37.2	686	=== 2.4.2 Uplink Payload, FPORT~=2 ===
2.2	687
37.2	688
2.2	689	There are different cases for uplink. See below
	690
	691	* SDI-12 Debug Command return: FPORT=100
	692
	693	* Periodically Uplink: FPORT=2
	694
41.18	695	(% border="1" cellspacing="4" style="background-color:#f7faff; width:500px" %)
41.19	696	\|=(% style="width: 90px;" %)(((
37.2	697	Size(bytes)
41.19	698	)))\|=(% style="width: 80px;" %)2\|=(% style="width: 90px;" %)1\|=(% style="width: 240px;" %)Length depends on the return from the commands
37.2	699	\|(% style="width:93px" %)Value\|(% style="width:83px" %)(((
2.2	700	Battery(mV)
	701	&
	702	Interrupt_Flag
41.18	703	)))\|(% style="width:91px" %)[[PAYLOAD_VER>>\|\|anchor="H3.6Setthepayloadversion"]]\|(% style="width:212px" %)(((
37.2	704	If the valid payload is too long and exceed the maximum support.
2.2	705	Payload length in server,server will show payload not provided in the LoRaWAN server.
	706	)))
	707
47.1	708	[[image:1675216282284-923.png\|\|_mstalt="295633"]]
2.2	709
	710
37.2	711	=== 2.4.3 Battery Info ===
2.2	712
	713
	714	Check the battery voltage for SDI-12-LB.
	715
	716	Ex1: 0x0B45 = 2885mV
	717
	718	Ex2: 0x0B49 = 2889mV
	719
	720
37.2	721	=== 2.4.4 Interrupt Pin ===
2.2	722
37.2	723
40.2	724	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"]].
2.2	725
37.2	726	Example:
2.2	727
	728	Ex1: 0x0B45:0x0B&0x80= 0x00 Normal uplink packet.
	729
	730	Ex2: 0x8B49:0x8B&0x80= 0x80 Interrupt Uplink Packet.
	731
	732
37.2	733	=== 2.4.5 Payload version ===
2.2	734
43.1	735	The version number of the payload, mainly used for decoding. The default is 01.
2.2	736
	737
37.2	738	=== 2.4.6 Decode payload in The Things Network ===
2.2	739
	740
	741	While using TTN network, you can add the payload format to decode the payload.
	742
47.1	743	[[image:1675216779406-595.png\|\|_mstalt="298376"]]
2.2	744
	745
	746	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.
	747
37.2	748	SDI-12-LB TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
2.2	749
	750
37.3	751	== 2.5 Uplink Interval ==
2.2	752
	753
	754	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:
	755
44.2	756	[[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]]
2.2	757
	758
43.1	759	== 2.6 Examples To Set SDI commands. ==
2.2	760
43.1	761	=== 2.6.1 Examples 1 ===
2.2	762
44.2	763
43.1	764	COM port and SDI-12 sensor communication converted to SDI-12-LB and SDI-12 sensor communication.
	765
47.1	766	[[image:image-20230222143809-1.png\|\|_mstalt="429962" height="564" width="729"]]
43.1	767
	768
44.2	769	(% style="color:blue" %)1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:
43.1	770
44.2	771	a. Send the first command and get the first reply：
43.1	772
44.2	773	(% style="color:#037691" %)AT+COMMANDx=1I!,0,0,1
43.1	774
44.2	775	b. Send the second command and get the second reply：
43.1	776
44.2	777	(% style="color:#037691" %)AT+COMMANDx=2I!,0,0,1
43.1	778
44.2	779	c. Send the third command and get the third reply：
43.1	780
44.2	781	(% style="color:#037691" %)AT+COMMANDx=3I!,0,0,1
43.1	782
44.2	783	d. Send the fourth command and get the fourth reply：
43.1	784
44.2	785	(% style="color:#037691" %)AT+COMMANDx=4I!,0,0,1
43.1	786
44.2	787	e. Send the fifth command plus the sixth command, get the sixth reply：
43.1	788
44.2	789	(% style="color:#037691" %)AT+COMMANDx=1M!,2,1,1
43.1	790
44.2	791	f. Send the seventh command plus the eighth command, get the eighth reply：
43.1	792
44.2	793	(% style="color:#037691" %)AT+COMMANDx=2M!,2,1,1
43.1	794
44.2	795	g. Send the ninth command plus the tenth command, get the tenth reply：
43.1	796
44.2	797	(% style="color:#037691" %)AT+COMMANDx=3M!,1,1,1
43.1	798
44.2	799	h. Send the eleventh command plus the twelfth command, get the twelfth reply：
43.1	800
44.2	801	(% style="color:#037691" %)AT+COMMANDx=4M!,1,1,1
43.1	802
	803
44.2	804	(% style="color:blue" %)2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor：
43.1	805
44.2	806	a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
43.1	807
47.1	808	Cut out all characters: (% _mstmutation="1" style="color:#037691" %)AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34(% style="color:#037691" %);
44.2	809
43.1	810	b. The sixth reply, all 31 characters：”1+19210+1.04+0.00+22.49+11.75<CR><LF>”
	811
47.1	812	Cut out all characters: (% _mstmutation="1" style="color:#037691" %)AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31(% style="color:#037691" %);
43.1	813
	814	c. The eighth reply, all 31 characters：”2+18990+1.08+0.00+22.24+11.80<CR><LF>”
	815
47.1	816	Cut out all characters: (% _mstmutation="1" style="color:#037691" %)AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31(% style="color:#037691" %);
43.1	817
	818	d. The tenth reply, all 15 characters：”3-2919.8+24.0<CR><LF>”
	819
47.1	820	Cut out all characters: (% _mstmutation="1" style="color:#037691" %)AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15(% style="color:#037691" %);
43.1	821
	822	e. The twelfth reply, all 25 characters：”4+30.8+22.84+4.7+954.38<CR><LF>”
	823
44.2	824	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”.
43.1	825
	826
	827	== 2.7 Frequency Plans ==
	828
	829
37.3	830	The SDI-12-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.
2.2	831
37.3	832	[[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/]]
2.2	833
	834
43.1	835	== 2.8 Firmware Change Log ==
37.3	836
	837
2.2	838	Firmware download link:
	839
41.9	840	[[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
2.2	841
	842
37.3	843	= 3. Configure SDI-12-LB via AT Command or LoRaWAN Downlink =
2.2	844
	845
	846	Use can configure SDI-12-LB via AT Command or LoRaWAN Downlink.
	847
40.8	848	* AT Command Connection: See [[FAQ>>\|\|anchor="H7.FAQ"]].
37.3	849	* LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
2.2	850
	851	There are two kinds of commands to configure SDI-12-LB, they are:
	852
40.7	853	* (% style="color:blue" %)General Commands.
2.2	854
	855	These commands are to configure:
	856
	857	* General system settings like: uplink interval.
	858	* LoRaWAN protocol & radio related command.
	859
	860	They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	861
40.2	862	[[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/]]
2.2	863
	864
40.7	865	* (% style="color:blue" %)Commands special design for SDI-12-LB
2.2	866
	867	These commands only valid for SDI-12-LB, as below:
	868
	869
43.1	870	== 3.1 Set Transmit Interval Time ==
2.2	871
	872
	873	Feature: Change LoRaWAN End Node Transmit Interval.
	874
37.3	875	(% style="color:blue" %)AT Command: AT+TDC
2.2	876
37.3	877	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
	878	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 137px;" %)Function\|=Response
	879	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
2.2	880	30000
	881	OK
	882	the interval is 30000ms = 30s
	883	)))
37.3	884	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
2.2	885	OK
	886	Set transmit interval to 60000ms = 60 seconds
	887	)))
	888
37.3	889	(% style="color:blue" %)Downlink Command: 0x01
2.2	890
37.3	891
2.2	892	Format: Command Code (0x01) followed by 3 bytes time value.
	893
37.6	894	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
2.2	895
37.6	896	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	897	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
2.2	898
47.2	899
48.2	900
37.3	901	== 3.2 Set Interrupt Mode ==
2.2	902
37.6	903
2.2	904	Feature, Set Interrupt mode for GPIO_EXIT.
	905
37.3	906	(% style="color:blue" %)AT Command: AT+INTMOD
2.2	907
37.3	908	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
37.6	909	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 187px;" %)Function\|=(% style="width: 165px;" %)Response
	910	\|(% style="width:156px" %)AT+INTMOD=?\|(% style="width:187px" %)Show current interrupt mode\|(% style="width:165px" %)(((
2.2	911	0
	912	OK
43.1	913	the mode is 0 = Disable Interrupt
2.2	914	)))
37.6	915	\|(% style="width:156px" %)AT+INTMOD=2\|(% style="width:187px" %)(((
2.2	916	Set Transmit Interval
43.1	917	0. (Disable Interrupt),
	918	~1. (Trigger by rising and falling edge)
	919	2. (Trigger by falling edge)
	920	3. (Trigger by rising edge)
37.6	921	)))\|(% style="width:165px" %)OK
2.2	922
37.3	923	(% style="color:blue" %)Downlink Command: 0x06
2.2	924
	925	Format: Command Code (0x06) followed by 3 bytes.
	926
	927	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	928
37.6	929	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	930	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
2.2	931
47.2	932
48.2	933
37.3	934	== 3.3 Set the output time ==
	935
	936
2.2	937	Feature, Control the output 3V3 , 5V or 12V.
	938
37.3	939	(% style="color:blue" %)AT Command: AT+3V3T
2.2	940
37.3	941	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:474px" %)
	942	\|=(% style="width: 154px;" %)Command Example\|=(% style="width: 201px;" %)Function\|=(% style="width: 116px;" %)Response
	943	\|(% style="width:154px" %)AT+3V3T=?\|(% style="width:201px" %)Show 3V3 open time.\|(% style="width:116px" %)(((
2.2	944	0
	945	OK
	946	)))
37.3	947	\|(% style="width:154px" %)AT+3V3T=0\|(% style="width:201px" %)Normally open 3V3 power supply.\|(% style="width:116px" %)(((
2.2	948	OK
	949	default setting
	950	)))
37.3	951	\|(% style="width:154px" %)AT+3V3T=1000\|(% style="width:201px" %)Close after a delay of 1000 milliseconds.\|(% style="width:116px" %)(((
2.2	952	OK
	953	)))
37.3	954	\|(% style="width:154px" %)AT+3V3T=65535\|(% style="width:201px" %)Normally closed 3V3 power supply.\|(% style="width:116px" %)(((
2.2	955	OK
	956	)))
	957
37.3	958	(% style="color:blue" %)AT Command: AT+5VT
2.2	959
37.3	960	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:470px" %)
	961	\|=(% style="width: 155px;" %)Command Example\|=(% style="width: 196px;" %)Function\|=(% style="width: 114px;" %)Response
	962	\|(% style="width:155px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:114px" %)(((
2.2	963	0
	964	OK
	965	)))
37.3	966	\|(% style="width:155px" %)AT+5VT=0\|(% style="width:196px" %)Normally closed 5V power supply.\|(% style="width:114px" %)(((
2.2	967	OK
	968	default setting
	969	)))
37.3	970	\|(% style="width:155px" %)AT+5VT=1000\|(% style="width:196px" %)Close after a delay of 1000 milliseconds.\|(% style="width:114px" %)(((
2.2	971	OK
	972	)))
37.3	973	\|(% style="width:155px" %)AT+5VT=65535\|(% style="width:196px" %)Normally open 5V power supply.\|(% style="width:114px" %)(((
2.2	974	OK
	975	)))
	976
37.3	977	(% style="color:blue" %)AT Command: AT+12VT
2.2	978
37.3	979	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:443px" %)
	980	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 199px;" %)Function\|=(% style="width: 83px;" %)Response
	981	\|(% style="width:156px" %)AT+12VT=?\|(% style="width:199px" %)Show 12V open time.\|(% style="width:83px" %)(((
2.2	982	0
	983	OK
	984	)))
37.3	985	\|(% style="width:156px" %)AT+12VT=0\|(% style="width:199px" %)Normally closed 12V power supply.\|(% style="width:83px" %)OK
	986	\|(% style="width:156px" %)AT+12VT=500\|(% style="width:199px" %)Close after a delay of 500 milliseconds.\|(% style="width:83px" %)(((
2.2	987	OK
	988	)))
	989
37.3	990	(% style="color:blue" %)Downlink Command: 0x07
2.2	991
	992	Format: Command Code (0x07) followed by 3 bytes.
	993
	994	The first byte is which power, the second and third bytes are the time to turn on.
	995
37.3	996	* Example 1: Downlink Payload: 070101F4 ~-~--> AT+3V3T=500
	997	* Example 2: Downlink Payload: 0701FFFF ~-~--> AT+3V3T=65535
	998	* Example 3: Downlink Payload: 070203E8 ~-~--> AT+5VT=1000
	999	* Example 4: Downlink Payload: 07020000 ~-~--> AT+5VT=0
	1000	* Example 5: Downlink Payload: 070301F4 ~-~--> AT+12VT=500
	1001	* Example 6: Downlink Payload: 07030000 ~-~--> AT+12VT=0
2.2	1002
47.2	1003
48.2	1004
37.3	1005	== 3.4 Set the all data mode ==
	1006
37.5	1007
2.2	1008	Feature, Set the all data mode.
	1009
37.5	1010	(% style="color:blue" %)AT Command: AT+ALLDATAMOD
2.2	1011
37.5	1012	(% border="1" cellspacing="4" style="background-color:#f7faff; width:437px" %)
	1013	\|=Command Example\|=Function\|=Response
2.2	1014	\|AT+ALLDATAMOD=?\|Show current all data mode\|(((
	1015	0
	1016	OK
	1017	)))
	1018	\|AT+ALLDATAMOD=1\|Set all data mode is 1.\|OK
	1019
37.5	1020	(% style="color:blue" %)Downlink Command: 0xAB
2.2	1021
	1022	Format: Command Code (0xAB) followed by 1 bytes.
	1023
37.5	1024	* Example 1: Downlink Payload: AB 00 ~/~/ AT+ALLDATAMOD=0
	1025	* Example 2: Downlink Payload: AB 01 ~/~/ AT+ALLDATAMOD=1
2.2	1026
47.2	1027
48.2	1028
37.3	1029	== 3.5 Set the splicing payload for uplink ==
	1030
37.5	1031
2.2	1032	Feature, splicing payload for uplink.
	1033
37.5	1034	(% style="color:blue" %)AT Command: AT+DATAUP
2.2	1035
37.5	1036	(% border="1" cellspacing="4" style="background-color:#f7faff; width:510px" %)
	1037	\|=(% style="width: 154px;" %)Command Example\|=(% style="width: 266px;" %)Function\|=Response
	1038	\|(% style="width:154px" %)AT+DATAUP =?\|(% style="width:266px" %)Show current splicing payload for uplink mode\|(((
2.2	1039	0
	1040	OK
	1041	)))
37.5	1042	\|(% style="width:154px" %)AT+DATAUP =0\|(% style="width:266px" %)(((
2.2	1043	Set splicing payload for uplink mode is 0.
	1044	)))\|(((
	1045	OK
	1046	)))
37.5	1047	\|(% style="width:154px" %)AT+DATAUP =1\|(% style="width:266px" %)Set splicing payload for uplink mode is 1 , and the each splice uplink is sent sequentially.\|OK
	1048	\|(% style="width:154px" %)AT+DATAUP =1,20000\|(% style="width:266px" %)(((
37.3	1049	Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
2.2	1050	)))\|OK
	1051
37.5	1052	(% style="color:blue" %)Downlink Command: 0xAD
2.2	1053
	1054	Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
	1055
37.6	1056	* Example 1: Downlink Payload: AD 00 ~/~/ AT+DATAUP=0
	1057	* Example 2: Downlink Payload: AD 01 ~/~/ AT+DATAUP =1
	1058	* Example 3: Downlink Payload: AD 01 00 00 14 ~/~/ AT+DATAUP =1,20000
2.2	1059
	1060	This means that the interval is set to 0x000014=20S
	1061
	1062
37.3	1063	== 3.6 Set the payload version ==
2.2	1064
41.20	1065
2.2	1066	Feature, Set the payload version.
	1067
37.5	1068	(% style="color:blue" %)AT Command: AT+PAYVER
2.2	1069
37.6	1070	(% border="1" cellspacing="4" style="background-color:#f7faff; width:437px" %)
	1071	\|=(% style="width: 158px;" %)Command Example\|=(% style="width: 192px;" %)Function\|=Response
	1072	\|(% style="width:158px" %)AT+PAYVER=?\|(% style="width:192px" %)Show current payload version\|(((
2.2	1073	1
	1074	OK
	1075	)))
37.6	1076	\|(% style="width:158px" %)AT+PAYVER=5\|(% style="width:192px" %)Set payload version is 5.\|OK
2.2	1077
37.5	1078	(% style="color:blue" %)Downlink Command: 0xAE
2.2	1079
	1080	Format: Command Code (0xAE) followed by 1 bytes.
	1081
37.6	1082	* Example 1: Downlink Payload: AE 01 ~/~/ AT+PAYVER=1
	1083	* Example 2: Downlink Payload: AE 05 ~/~/ AT+PAYVER=5
2.2	1084
47.2	1085
48.2	1086
37.3	1087	= 4. Battery & how to replace =
2.2	1088
37.3	1089	== 4.1 Battery Type ==
2.2	1090
	1091
37.5	1092	SDI-12-LB is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>https://www.dropbox.com/sh/w9l2oa3ytpculph/AAAPtt-apH4lYfCj-2Y6lHvQa?dl=0]]. 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.
37.3	1093
	1094
2.2	1095	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1096
47.1	1097	[[image:1675234124233-857.png\|\|_mstalt="295035"]]
2.2	1098
	1099
37.5	1100	Minimum Working Voltage for the SDI-12-LB:
2.2	1101
37.5	1102	SDI-12-LB: 2.45v ~~ 3.6v
2.2	1103
	1104
37.3	1105	== 4.2 Replace Battery ==
2.2	1106
37.3	1107
2.2	1108	Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	1109
	1110	And make sure the positive and negative pins match.
	1111
	1112
37.3	1113	== 4.3 Power Consumption Analyze ==
2.2	1114
	1115
	1116	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.
	1117
	1118	Instruction to use as below:
	1119
37.3	1120	(% style="color:blue" %)Step 1:(%%) Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0>>https://www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0]]
2.2	1121
37.3	1122	(% style="color:blue" %)Step 2:(%%) Open it and choose
2.2	1123
	1124	* Product Model
	1125	* Uplink Interval
	1126	* Working Mode
	1127
	1128	And the Life expectation in difference case will be shown on the right.
	1129
	1130
47.1	1131	[[image:1675234155374-163.png\|\|_mstalt="294411"]]
2.2	1132
40.2	1133
2.2	1134	The battery related documents as below:
	1135
37.3	1136	* [[Battery Dimension>>https://www.dropbox.com/s/ox5g9njwjle7aw3/LSN50-Battery-Dimension.pdf?dl=0]],
	1137	* [[Lithium-Thionyl Chloride Battery datasheet, Tech Spec>>https://www.dropbox.com/sh/d4oyfnp8o94180o/AABQewCNSh5GPeQH86UxRgQQa?dl=0]]
	1138	* [[Lithium-ion Battery-Capacitor datasheet>>https://www.dropbox.com/s/791gjes2lcbfi1p/SPC_1520_datasheet.jpg?dl=0]], [[Tech Spec>>https://www.dropbox.com/s/4pkepr9qqqvtzf2/SPC1520%20Technical%20Specification20171123.pdf?dl=0]]
2.2	1139
47.1	1140	[[image:image-20230201145019-19.png\|\|_mstalt="453947"]]
2.2	1141
	1142
37.3	1143	=== 4.3.1 Battery Note ===
2.2	1144
	1145
	1146	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.
	1147
	1148
37.3	1149	=== 4.3.2 Replace the battery ===
2.2	1150
	1151
37.5	1152	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.
2.2	1153
37.5	1154	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)
2.2	1155
	1156
37.3	1157	= 5. Remote Configure device =
2.2	1158
37.3	1159	== 5.1 Connect via BLE ==
2.2	1160
	1161
37.3	1162	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/]]
2.2	1163
	1164
37.3	1165	== 5.2 AT Command Set ==
2.2	1166
	1167
	1168
37.3	1169	= 6. OTA firmware update =
	1170
	1171
2.2	1172	Please see this link for how to do OTA firmware update.
	1173
	1174	[[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/]]
	1175
	1176
40.2	1177	= 7. FAQ =
2.2	1178
48.1	1179	== 7.1 How to use AT Command via UART to access device? ==
2.2	1180
	1181
40.2	1182	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]]
	1183
	1184
	1185	== 7.2 How to update firmware via UART port? ==
	1186
	1187
	1188	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]]
	1189
	1190
	1191	== 7.3 How to change the LoRa Frequency Bands/Region? ==
	1192
	1193
	1194	You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
	1195	When downloading the images, choose the required image file for download.
	1196
	1197
	1198	= 8. Order Info =
	1199
	1200
41.20	1201	(((
40.7	1202	(% style="color:blue" %)Part Number: SDI-12-LB-XXX
41.20	1203	)))
40.7	1204
41.20	1205	(((
37.4	1206	XXX: The default frequency band
41.20	1207	)))
2.2	1208
41.20	1209	(((
40.7	1210	(% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1211	(% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1212	(% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1213	(% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1214	(% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1215	(% style="color:red" %)US915(%%): LoRaWAN US915 band
	1216	(% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1217	(% style="color:red" %)CN470(%%): LoRaWAN CN470 band
41.20	1218	)))
2.2	1219
	1220
47.2	1221
40.2	1222	= 9. Packing Info =
37.3	1223
	1224
40.7	1225	(% style="color:#037691" %)Package Includes:
2.2	1226
37.3	1227	* SDI-12-LB SDI-12 to LoRaWAN Converter x 1
2.2	1228
40.7	1229	(% style="color:#037691" %)Dimension and weight:
2.2	1230
	1231	* Device Size: cm
	1232	* Device Weight: g
	1233	* Package Size / pcs : cm
	1234	* Weight / pcs : g
	1235
47.2	1236
48.2	1237
40.2	1238	= 10. Support =
37.3	1239
	1240
2.2	1241	* 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.
	1242
37.3	1243	* 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]]
2.2	1244
40.8	1245

Wiki source code of SDI-12-LB -- SDI-12 to LoRaWAN Converter User Manual

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