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

Version 41.17 by Xiaoling on 2023/02/01 16:47

version	line-number	content
40.7	1	(% style="text-align:center" %)
	2	[[image:image-20230131183542-1.jpeg\|\|height="694" width="694"]]
2.2	3
	4	Table of Contents：
	5
40.7	6	{{toc/}}
2.2	7
	8
	9
	10
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	12
	13
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	16
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	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
40.7	50	[[image:image-20230201084414-1.png\|\|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
	58	* Controllable 5v and 12v output to power external sensor
	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
9.2	68	== 1.3 Specification ==
2.2	69
	70
40.2	71	(% style="color:#037691" %)Micro Controller:
2.2	72
	73	* MCU: 48Mhz ARM
	74	* Flash: 256KB
	75	* RAM: 64KB
	76
40.2	77	(% style="color:#037691" %)Common DC Characteristics:
2.2	78
	79	* Supply Voltage: 2.5v ~~ 3.6v
	80	* Operating Temperature: -40 ~~ 85°C
	81
40.2	82	(% style="color:#037691" %)LoRa Spec:
2.2	83
	84	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	85	* Max +22 dBm constant RF output vs.
	86	* RX sensitivity: down to -139 dBm.
	87	* Excellent blocking immunity
	88
40.2	89	(% style="color:#037691" %)Current Input Measuring :
2.2	90
	91	* Range: 0 ~~ 20mA
	92	* Accuracy: 0.02mA
	93	* Resolution: 0.001mA
	94
40.2	95	(% style="color:#037691" %)Voltage Input Measuring:
2.2	96
	97	* Range: 0 ~~ 30v
	98	* Accuracy: 0.02v
	99	* Resolution: 0.001v
	100
40.2	101	(% style="color:#037691" %)Battery:
2.2	102
	103	* Li/SOCI2 un-chargeable battery
	104	* Capacity: 8500mAh
	105	* Self-Discharge: <1% / Year @ 25°C
	106	* Max continuously current: 130mA
	107	* Max boost current: 2A, 1 second
	108
40.2	109	(% style="color:#037691" %)Power Consumption
2.2	110
	111	* Sleep Mode: 5uA @ 3.3v
	112	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	113
9.2	114	== 1.4 Connect to SDI-12 Sensor ==
2.2	115
	116
	117
40.7	118	[[image:1675212538524-889.png]]
2.2	119
	120
9.2	121	== 1.5 Sleep mode and working mode ==
2.2	122
	123
40.2	124	(% 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	125
40.2	126	(% 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	127
	128
9.2	129	== 1.6 Button & LEDs ==
2.2	130
	131
40.7	132	[[image:1675212633011-651.png]]
2.2	133
	134
	135
9.2	136	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
41.14	137	\|=(% style="width: 167px;" %)Behavior on ACT\|=(% style="width: 109px;" %)Function\|=(% style="width: 231px;" %)Action
	138	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:109px" %)Send an uplink\|(% style="width:231px" %)(((
9.2	139	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
2.2	140	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	141	)))
41.14	142	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:109px" %)Active Device\|(% style="width:231px" %)(((
9.2	143	(% 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.
	144	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
2.2	145	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.
	146	)))
41.14	147	\|(% 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 PS-LB is in Deep Sleep Mode.
2.2	148
9.2	149	== 1.7 Pin Mapping ==
2.2	150
	151
40.7	152	[[image:1675213198663-754.png]]
2.2	153
	154
9.2	155	== 1.8 BLE connection ==
2.2	156
9.2	157
2.2	158	SDI-12-LB support BLE remote configure.
	159
	160	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:
	161
	162	* Press button to send an uplink
	163	* Press button to active device.
	164	* Device Power on or reset.
	165
	166	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	167
	168
9.2	169	== 1.9 Mechanical ==
2.2	170
	171
40.7	172	[[image:image-20230201090139-2.png]]
2.2	173
40.7	174	[[image:image-20230201090139-3.png]]
2.2	175
40.7	176	[[image:image-20230201090139-4.png]]
2.2	177
	178
19.2	179	= 2. Configure SDI-12 to connect to LoRaWAN network =
9.2	180
19.2	181	== 2.1 How it works ==
9.2	182
	183
40.2	184	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	185
2.2	186
19.2	187	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
2.2	188
	189
	190	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.
	191
	192
40.7	193	[[image:image-20230201090528-5.png\|\|height="465" width="1111"]]
2.2	194
	195
	196	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.
	197
	198
40.2	199	(% style="color:blue" %)Step 1(%%): Create a device in TTN with the OTAA keys from SDI-12-LB.
2.2	200
	201	Each SDI-12-LB is shipped with a sticker with the default device EUI as below:
	202
	203
41.2	204	[[image:image-20230201152430-20.jpeg]]
2.2	205
	206
	207	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	208
	209
40.2	210	(% style="color:blue" %)Register the device
2.2	211
40.7	212	[[image:1675213652444-622.png]]
2.2	213
	214
40.2	215	(% style="color:blue" %)Add APP EUI and DEV EUI
2.2	216
	217
40.7	218	[[image:1675213661769-223.png]]
2.2	219
	220
40.2	221	(% style="color:blue" %)Add APP EUI in the application
2.2	222
	223
40.7	224	[[image:1675213675852-577.png]]
2.2	225
	226
40.2	227	(% style="color:blue" %)Add APP KEY
2.2	228
40.7	229	[[image:1675213686734-883.png]]
2.2	230
	231
40.2	232	(% style="color:blue" %)Step 2(%%): Activate on SDI-12-LB
2.2	233
	234
	235	Press the button for 5 seconds to activate the SDI-12-LB.
	236
40.2	237	(% 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	238
	239
40.7	240	[[image:1675213704414-644.png]]
2.2	241
	242
19.2	243	== 2.3 SDI-12 Related Commands ==
2.2	244
	245
19.2	246	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	247
	248
29.2	249	=== 2.3.1 Basic SDI-12 debug command ===
2.2	250
	251
	252	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.
	253
	254	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.
	255
	256	The following is the display information on the serial port and the server.
	257
	258
40.7	259	[[image:image-20230201091027-6.png]]
2.2	260
19.2	261
40.7	262	[[image:image-20230201091027-7.png\|\|height="261" width="1179"]]
19.2	263
	264
41.4	265
40.2	266	==== (% style="color:blue" %)al! ~-~- Get SDI-12 sensor Identification(%%) ====
19.2	267
	268
2.2	269	* AT Command: AT+ADDRI=aa
	270	* LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
	271
40.2	272	(% style="color:#037691" %)Parameter: (%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
2.2	273
41.4	274	(% style="color:blue" %)Example : (%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
2.2	275
	276
	277	The following is the display information on the serial port and the server.
	278
	279
40.7	280	[[image:image-20230201091257-8.png]]
2.2	281
	282
40.7	283	[[image:image-20230201091257-9.png\|\|height="225" width="1242"]]
19.2	284
	285
40.2	286	==== (% style="color:blue" %)aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!(%%) ====
2.2	287
	288
40.2	289	(% style="color:red" %)aM! (%%): Start Non-Concurrent Measurement
2.2	290
40.2	291	(% style="color:red" %)aMC! (%%): Start Non-Concurrent Measurement – Request CRC
2.2	292
40.2	293	(% style="color:red" %)aM1!- aM9! (%%): Additional Measurements
2.2	294
40.2	295	(% style="color:red" %)aMC1!- aMC9!(%%) : Additional Measurements – Request CRC
2.2	296
27.2	297
2.2	298	* AT Command : AT+ADDRM=0,1,0,1
37.10	299
2.2	300	* LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
	301
	302	Downlink：AA 01 aa bb cc dd
	303
40.2	304	(% style="color:#037691" %)aa(%%): SDI-12 sensor address.
2.2	305
40.2	306	(% style="color:#037691" %)bb(%%): 0: no CRC, 1: request CRC
2.2	307
40.2	308	(% style="color:#037691" %)cc(%%): 1-9: Additional Measurement, 0: no additional measurement
2.2	309
41.5	310	(% style="color:#037691" %)dd(%%): delay (in second) to send (% style="color:#037691" %)__aD0!__(%%) to get return.
2.2	311
	312
	313	The following is the display information on the serial port and the server.
	314
	315
40.7	316	[[image:image-20230201091630-10.png]]
2.2	317
	318
40.7	319	[[image:image-20230201091630-11.png\|\|height="247" width="1165"]]
2.2	320
	321
	322
40.2	323	==== (% style="color:blue" %)aC!, aCC!, aC1!- aC9!, aCC1!- aCC9! (%%) ====
2.2	324
	325
40.2	326	(% style="color:red" %)aC!(%%) : Start Concurrent Measurement
2.2	327
40.2	328	(% style="color:red" %)aCC! (%%): Start Concurrent Measurement – Request CRC
2.2	329
40.2	330	(% style="color:red" %)aC1!- aC9!(%%) : Start Additional Concurrent Measurements
27.2	331
40.2	332	(% style="color:red" %)aCC1!- aCC9!(%%) : Start Additional Concurrent Measurements – Request CRC
27.2	333
	334
2.2	335	* AT Command : AT+ADDRC=0,1,0,1
	336
	337	* LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
	338
	339	Downlink: AA 02 aa bb cc dd
	340
40.2	341	(% style="color:#037691" %)aa(%%): SDI-12 sensor address.
2.2	342
40.2	343	(% style="color:#037691" %)bb(%%): 0: no CRC, 1: request CRC
2.2	344
40.2	345	(% style="color:#037691" %)cc(%%): 1-9: Additional Measurement, 0: no additional measurement
2.2	346
41.5	347	(% style="color:#037691" %)dd(%%): delay (in second) to send (% style="color:#037691" %)__aD0!__(%%)__ __to get return.
2.2	348
	349
	350	The following is the display information on the serial port and the server.
	351
	352
40.7	353	[[image:image-20230201091954-12.png]]
2.2	354
	355
40.7	356	[[image:image-20230201091954-13.png\|\|height="203" width="1117"]]
2.2	357
27.2	358
	359
	360
40.2	361	==== (% style="color:blue" %)aR0!- aR9!, aRC0!- aRC9!(%%) ====
27.2	362
37.10	363
2.2	364	Start Continuous Measurement
	365
	366	Start Continuous Measurement – Request CRC
	367
	368
	369	* AT Command : AT+ADDRR=0,1,0,1
	370	* LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
	371
	372	Downlink: AA 03 aa bb cc dd
	373
40.2	374	(% style="color:#037691" %)aa(%%): SDI-12 sensor address.
2.2	375
40.2	376	(% style="color:#037691" %)bb(%%): 0: no CRC, 1: request CRC
2.2	377
40.2	378	(% style="color:#037691" %)cc(%%): 1-9: Additional Measurement, 0: no additional measurement
2.2	379
41.5	380	(% style="color:#037691" %)dd(%%): delay (in second) to send (% style="color:#037691" %)__aD0!__(%%) to get return.
2.2	381
	382
	383	The following is the display information on the serial port and the server.
	384
	385
40.7	386	[[image:image-20230201092208-14.png]]
2.2	387
27.2	388
40.7	389	[[image:image-20230201092208-15.png\|\|height="214" width="1140"]]
27.2	390
	391
37.2	392	=== 2.3.2 Advance SDI-12 Debug command ===
27.2	393
	394
2.2	395	This command can be used to debug all SDI-12 command.
	396
	397
	398	LoRaWAN Downlink: A8 aa xx xx xx xx bb cc
	399
40.2	400	(% style="color:#037691" %)aa (%%): total SDI-12 command length
2.2	401
40.2	402	(% style="color:#037691" %)xx (%%): SDI-12 command
2.2	403
40.2	404	(% style="color:#037691" %)bb (%%): Delay to wait for return
2.2	405
40.2	406	(% style="color:#037691" %)cc (%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
2.2	407
	408
40.2	409	(% style="color:blue" %)Example: (%%) AT+CFGDEV =0RC0!,1
2.2	410
40.2	411	(% style="color:#037691" %)0RC0! (%%): SDI-12 Command,
2.2	412
40.2	413	(% style="color:#037691" %)1 (%%): Delay 1 second. ( 0: 810 mini-second)
2.2	414
	415	Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
	416
	417
	418	The following is the display information on the serial port and the server.
	419
	420
40.7	421	[[image:image-20230201092355-16.png]]
2.2	422
	423
40.7	424	[[image:image-20230201092355-17.png\|\|height="426" width="1135"]]
27.2	425
29.2	426
	427	=== 2.3.3 Convert ASCII to String ===
	428
	429
2.2	430	This command is used to convert between ASCII and String format.
	431
	432	AT+CONVFORM ( Max length: 80 bytes)
	433
	434
40.2	435	(% style="color:blue" %)Example:
2.2	436
29.2	437	1) AT+CONVFORM=0, string Convert String from String to ASCII
2.2	438
40.7	439	[[image:1675214845056-885.png]]
2.2	440
	441
29.2	442	2) AT+CONVFORM=1, ASCII Convert ASCII to String.
2.2	443
40.7	444	[[image:1675214856590-846.png]]
2.2	445
29.2	446
	447	=== 2.3.4 Define periodically SDI-12 commands and uplink. ===
	448
	449
2.2	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
40.2	455	* (% style="color:blue" %)AT Command:
2.2	456
40.2	457	(% style="color:#037691" %)AT+COMMANDx=var1,var2,var3,var4.
2.2	458
40.2	459	(% style="color:red" %)var1(%%): SDI-12 command , for example: 0RC0!
2.2	460
40.2	461	(% style="color:red" %)var2(%%): Wait timeout for return. (unit: second)
2.2	462
40.2	463	(% style="color:red" %)var3(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//.
2.2	464
40.2	465	(% style="color:red" %)var4(%%): validation check for return. If return invalid, SDI-12-LB will resend this command. Max 2 retries.
2.2	466
40.2	467	(% style="color:red" %)0 (%%) No validation check;
2.2	468
40.2	469	(% style="color:red" %)1 (%%) Check if return chars are printable char(0x20 ~~ 0x7E);
2.2	470
41.5	471	(% style="color:red" %)2(%%) Check if there is return from SDI-12 sensor
2.2	472
40.2	473	(% style="color:red" %)3 (%%) Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
2.2	474
	475
40.2	476	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	477
	478
40.2	479	(% style="color:blue" %)AT+DATACUTx(%%) : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
2.2	480
29.2	481	(% border="1" style="background-color:#f7faff; width:436px" %)
	482	\|(% style="width:433px" %)(((
35.2	483	AT+DATACUTx=a,b,c
2.2	484
29.2	485	a: length for the return of AT+COMMAND
2.2	486
37.11	487	b: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
2.2	488
29.2	489	c: define the position for valid value.
2.2	490	)))
	491
35.2	492	For example, if return from AT+COMMAND1 is “013METER TER12 112T12-00024895” , Below AT+DATACUT1 will get different result to combine payload:
2.2	493
	494
35.2	495	(% border="1" cellspacing="4" style="background-color:#f7faff; width:510px" %)
41.15	496	\|=(% style="width: 164px;" %)AT+DATACUT1 value\|=(% style="width: 344px;" %)Final Result to combine Payload
	497	\|(% style="width:164px" %)34,1,1+2+3\|(% style="width:344px" %)0D 00 01 30 31 33
	498	\|(% 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
	499	\|(% 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	500
40.2	501	* (% style="color:blue" %) Downlink Payload:
2.2	502
40.2	503	(% style="color:blue" %)0xAF(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
2.2	504
	505
40.2	506	(% style="color:red" %)Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
2.2	507
	508
40.2	509	Format: (% style="color:#037691" %)AF MM NN LL XX XX XX XX YY(%%)
2.2	510
	511	Where:
	512
40.2	513	* (% style="color:#037691" %)MM (%%): the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	514	* (% style="color:#037691" %)NN (%%): 1: set the AT+DATACUT value ; 2: set the AT+DATACUT value.
	515	* (% style="color:#037691" %)LL (%%): The length of AT+COMMAND or AT+DATACUT command
	516	* (% style="color:#037691" %)XX XX XX XX (%%): AT+COMMAND or AT+DATACUT command
	517	* (% style="color:#037691" %)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.
2.2	518
40.2	519	(% style="color:blue" %)Example:
2.2	520
40.7	521	[[image:image-20230201094129-18.png]]
2.2	522
	523
41.16	524
40.2	525	(% style="color:blue" %)Clear SDI12 Command
2.2	526
	527	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	528
	529
40.2	530	* (% style="color:#037691" %)AT Command:
2.2	531
40.2	532	(% style="color:#4f81bd" %)AT+CMDEAR=mm,nn (%%) mm: start position of erase ,nn: stop position of erase
2.2	533
	534
	535	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	536
	537
40.2	538	* (% style="color:#037691" %) Downlink Payload:
2.2	539
40.2	540	(% style="color:#4f81bd" %)0x09 aa bb(%%) same as AT+CMDEAR=aa,bb
2.2	541
	542
	543
40.2	544	(% style="color:blue" %)command combination
2.2	545
	546	Below shows a screen shot how the results combines together to a uplink payload.
	547
40.7	548	[[image:1675215745275-920.png]]
2.2	549
	550
35.2	551	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	552
40.2	553	(% 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	554
	555
41.7	556	(% 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	557
	558
40.7	559	[[image:1675215782925-448.png]]
2.2	560
	561
40.2	562	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	563
	564
	565
41.17	566	(% style="color:blue" %)Compose Uplink
2.2	567
40.2	568	(% style="color:#4f81bd" %)AT+DATAUP=0
2.2	569
41.8	570	Compose the uplink payload with value returns in sequence and send with __A SIGNLE UPLINK__.
2.2	571
41.8	572	Final Payload is __Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx__
2.2	573
	574	Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	575
	576
40.7	577	[[image:1675215828102-844.png]]
2.2	578
	579
40.2	580	(% style="color:#4f81bd" %)AT+DATAUP=1
2.2	581
41.8	582	Compose the uplink payload with value returns in sequence and send with __Multiply UPLINKs__.
2.2	583
41.8	584	Final Payload is __Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA__
2.2	585
	586	1. Battery Info (2 bytes): Battery voltage
	587	1. PAYVER (1 byte): Defined by AT+PAYVER
	588	1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
	589	1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	590	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
	591
40.7	592	[[image:1675215848113-696.png]]
2.2	593
	594
40.2	595	(% 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	596
35.2	597	* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	598	* For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	599	* For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	600	* For all other bands: max 51 bytes for each uplink ( so 51 -5 = 46 max valid date).
2.2	601
40.2	602	(% 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	603
40.2	604	(% 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	605
	606
40.7	607	== 2.4 Uplink Payload ==
2.2	608
	609
	610	Uplink payloads have two types:
	611
	612	* Distance Value: Use FPORT=2
	613	* Other control commands: Use other FPORT fields.
	614
	615	The application server should parse the correct value based on FPORT settings.
	616
	617
37.2	618	=== 2.4.1 Device Payload, FPORT~=5 ===
2.2	619
37.2	620
2.2	621	Include device configure status. Once SDI-12-LB Joined the network, it will uplink this message to the server.
	622
	623	Users can also use the downlink command(0x26 01) to ask SDI-12-LB to resend this uplink.
	624
41.17	625	(% border="1" cellspacing="4" style="background-color:#f7faff; width:420px" %)
35.2	626	\|(% colspan="6" style="width:434px" %)Device Status (FPORT=5)
41.17	627	\|(% 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
	628	\|(% 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	629
	630	Example parse in TTNv3
	631
40.7	632	[[image:1675215946738-635.png]]
2.2	633
37.2	634
40.2	635	(% style="color:#037691" %)Sensor Model(%%): For SDI-12-LB, this value is 0x17
2.2	636
40.2	637	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
2.2	638
40.2	639	(% style="color:#037691" %)Frequency Band:
2.2	640
	641	*0x01: EU868
	642
	643	*0x02: US915
	644
	645	*0x03: IN865
	646
	647	*0x04: AU915
	648
	649	*0x05: KZ865
	650
	651	*0x06: RU864
	652
	653	*0x07: AS923
	654
	655	*0x08: AS923-1
	656
	657	*0x09: AS923-2
	658
	659	*0x0a: AS923-3
	660
	661	*0x0b: CN470
	662
	663	*0x0c: EU433
	664
	665	*0x0d: KR920
	666
	667	*0x0e: MA869
	668
	669
40.2	670	(% style="color:#037691" %)Sub-Band:
2.2	671
	672	AU915 and US915:value 0x00 ~~ 0x08
	673
	674	CN470: value 0x0B ~~ 0x0C
	675
	676	Other Bands: Always 0x00
	677
	678
40.2	679	(% style="color:#037691" %)Battery Info:
2.2	680
	681	Check the battery voltage.
	682
	683	Ex1: 0x0B45 = 2885mV
	684
	685	Ex2: 0x0B49 = 2889mV
	686
	687
37.2	688	=== 2.4.2 Uplink Payload, FPORT~=2 ===
2.2	689
37.2	690
2.2	691	There are different cases for uplink. See below
	692
	693	* SDI-12 Debug Command return: FPORT=100
	694
	695	* Periodically Uplink: FPORT=2
	696
37.2	697	(% border="1" cellspacing="4" style="background-color:#f7faff; width:510px" %)
	698	\|(% style="width:93px" %)(((
	699	Size(bytes)
	700	)))\|(% style="width:83px" %)2\|(% style="width:70px" %)1\|(% style="width:234px" %)Length depends on the return from the commands
	701	\|(% style="width:93px" %)Value\|(% style="width:83px" %)(((
2.2	702	Battery(mV)
	703	&
	704	Interrupt_Flag
37.12	705	)))\|(% style="width:70px" %)[[PAYLOAD_VER>>\|\|anchor="H3.6Setthepayloadversion"]]\|(% style="width:234px" %)(((
37.2	706	If the valid payload is too long and exceed the maximum support.
2.2	707	Payload length in server,server will show payload not provided in the LoRaWAN server.
	708	)))
	709
40.7	710	[[image:1675216282284-923.png]]
2.2	711
	712
37.2	713	=== 2.4.3 Battery Info ===
2.2	714
	715
	716	Check the battery voltage for SDI-12-LB.
	717
	718	Ex1: 0x0B45 = 2885mV
	719
	720	Ex2: 0x0B49 = 2889mV
	721
	722
37.2	723	=== 2.4.4 Interrupt Pin ===
2.2	724
37.2	725
40.2	726	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	727
37.2	728	Example:
2.2	729
	730	Ex1: 0x0B45:0x0B&0x80= 0x00 Normal uplink packet.
	731
	732	Ex2: 0x8B49:0x8B&0x80= 0x80 Interrupt Uplink Packet.
	733
	734
37.2	735	=== 2.4.5 Payload version ===
2.2	736
	737
	738
37.2	739	=== 2.4.6 Decode payload in The Things Network ===
2.2	740
	741
	742	While using TTN network, you can add the payload format to decode the payload.
	743
40.7	744	[[image:1675216779406-595.png]]
2.2	745
	746
	747	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.
	748
37.2	749	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	750
	751
37.3	752	== 2.5 Uplink Interval ==
2.2	753
	754
	755	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:
	756
40.2	757	[[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	758
	759
37.3	760	== 2.6 Frequency Plans ==
2.2	761
	762
37.3	763	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	764
37.3	765	[[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	766
	767
37.3	768	== 2.7 Firmware Change Log ==
	769
	770
2.2	771	Firmware download link:
	772
41.9	773	[[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
2.2	774
41.9	775
2.2	776
37.3	777	= 3. Configure SDI-12-LB via AT Command or LoRaWAN Downlink =
2.2	778
	779
	780	Use can configure SDI-12-LB via AT Command or LoRaWAN Downlink.
	781
40.8	782	* AT Command Connection: See [[FAQ>>\|\|anchor="H7.FAQ"]].
37.3	783	* LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
2.2	784
	785	There are two kinds of commands to configure SDI-12-LB, they are:
	786
40.7	787	* (% style="color:blue" %)General Commands.
2.2	788
	789	These commands are to configure:
	790
	791	* General system settings like: uplink interval.
	792	* LoRaWAN protocol & radio related command.
	793
	794	They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	795
40.2	796	[[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	797
	798
40.7	799	* (% style="color:blue" %)Commands special design for SDI-12-LB
2.2	800
	801	These commands only valid for SDI-12-LB, as below:
	802
	803
37.3	804	== 3.1 Set Transmit Interval Time ==
2.2	805
	806
	807	Feature: Change LoRaWAN End Node Transmit Interval.
	808
37.3	809	(% style="color:blue" %)AT Command: AT+TDC
2.2	810
37.3	811	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
	812	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 137px;" %)Function\|=Response
	813	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
2.2	814	30000
	815	OK
	816	the interval is 30000ms = 30s
	817	)))
37.3	818	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
2.2	819	OK
	820	Set transmit interval to 60000ms = 60 seconds
	821	)))
	822
37.3	823	(% style="color:blue" %)Downlink Command: 0x01
2.2	824
37.3	825
2.2	826	Format: Command Code (0x01) followed by 3 bytes time value.
	827
37.6	828	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	829
37.6	830	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	831	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
2.2	832
37.3	833	== 3.2 Set Interrupt Mode ==
2.2	834
37.6	835
2.2	836	Feature, Set Interrupt mode for GPIO_EXIT.
	837
37.3	838	(% style="color:blue" %)AT Command: AT+INTMOD
2.2	839
37.3	840	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
37.6	841	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 187px;" %)Function\|=(% style="width: 165px;" %)Response
	842	\|(% style="width:156px" %)AT+INTMOD=?\|(% style="width:187px" %)Show current interrupt mode\|(% style="width:165px" %)(((
2.2	843	0
	844	OK
	845	the mode is 0 = No interruption
	846	)))
37.6	847	\|(% style="width:156px" %)AT+INTMOD=2\|(% style="width:187px" %)(((
2.2	848	Set Transmit Interval
37.3	849	~1. (Disable Interrupt),
	850	2. (Trigger by rising and falling edge)
	851	3. (Trigger by falling edge)
	852	4. (Trigger by rising edge)
37.6	853	)))\|(% style="width:165px" %)OK
2.2	854
37.3	855	(% style="color:blue" %)Downlink Command: 0x06
2.2	856
	857	Format: Command Code (0x06) followed by 3 bytes.
	858
	859	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	860
37.6	861	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	862	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
2.2	863
37.3	864	== 3.3 Set the output time ==
	865
	866
2.2	867	Feature, Control the output 3V3 , 5V or 12V.
	868
37.3	869	(% style="color:blue" %)AT Command: AT+3V3T
2.2	870
37.3	871	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:474px" %)
	872	\|=(% style="width: 154px;" %)Command Example\|=(% style="width: 201px;" %)Function\|=(% style="width: 116px;" %)Response
	873	\|(% style="width:154px" %)AT+3V3T=?\|(% style="width:201px" %)Show 3V3 open time.\|(% style="width:116px" %)(((
2.2	874	0
	875	OK
	876	)))
37.3	877	\|(% style="width:154px" %)AT+3V3T=0\|(% style="width:201px" %)Normally open 3V3 power supply.\|(% style="width:116px" %)(((
2.2	878	OK
	879	default setting
	880	)))
37.3	881	\|(% style="width:154px" %)AT+3V3T=1000\|(% style="width:201px" %)Close after a delay of 1000 milliseconds.\|(% style="width:116px" %)(((
2.2	882	OK
	883	)))
37.3	884	\|(% style="width:154px" %)AT+3V3T=65535\|(% style="width:201px" %)Normally closed 3V3 power supply.\|(% style="width:116px" %)(((
2.2	885	OK
	886	)))
	887
37.3	888	(% style="color:blue" %)AT Command: AT+5VT
2.2	889
37.3	890	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:470px" %)
	891	\|=(% style="width: 155px;" %)Command Example\|=(% style="width: 196px;" %)Function\|=(% style="width: 114px;" %)Response
	892	\|(% style="width:155px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:114px" %)(((
2.2	893	0
	894	OK
	895	)))
37.3	896	\|(% style="width:155px" %)AT+5VT=0\|(% style="width:196px" %)Normally closed 5V power supply.\|(% style="width:114px" %)(((
2.2	897	OK
	898	default setting
	899	)))
37.3	900	\|(% style="width:155px" %)AT+5VT=1000\|(% style="width:196px" %)Close after a delay of 1000 milliseconds.\|(% style="width:114px" %)(((
2.2	901	OK
	902	)))
37.3	903	\|(% style="width:155px" %)AT+5VT=65535\|(% style="width:196px" %)Normally open 5V power supply.\|(% style="width:114px" %)(((
2.2	904	OK
	905	)))
	906
37.3	907	(% style="color:blue" %)AT Command: AT+12VT
2.2	908
37.3	909	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:443px" %)
	910	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 199px;" %)Function\|=(% style="width: 83px;" %)Response
	911	\|(% style="width:156px" %)AT+12VT=?\|(% style="width:199px" %)Show 12V open time.\|(% style="width:83px" %)(((
2.2	912	0
	913	OK
	914	)))
37.3	915	\|(% style="width:156px" %)AT+12VT=0\|(% style="width:199px" %)Normally closed 12V power supply.\|(% style="width:83px" %)OK
	916	\|(% style="width:156px" %)AT+12VT=500\|(% style="width:199px" %)Close after a delay of 500 milliseconds.\|(% style="width:83px" %)(((
2.2	917	OK
	918	)))
	919
37.3	920	(% style="color:blue" %)Downlink Command: 0x07
2.2	921
	922	Format: Command Code (0x07) followed by 3 bytes.
	923
	924	The first byte is which power, the second and third bytes are the time to turn on.
	925
37.3	926	* Example 1: Downlink Payload: 070101F4 ~-~--> AT+3V3T=500
	927	* Example 2: Downlink Payload: 0701FFFF ~-~--> AT+3V3T=65535
	928	* Example 3: Downlink Payload: 070203E8 ~-~--> AT+5VT=1000
	929	* Example 4: Downlink Payload: 07020000 ~-~--> AT+5VT=0
	930	* Example 5: Downlink Payload: 070301F4 ~-~--> AT+12VT=500
	931	* Example 6: Downlink Payload: 07030000 ~-~--> AT+12VT=0
2.2	932
37.3	933	== 3.4 Set the all data mode ==
	934
37.5	935
2.2	936	Feature, Set the all data mode.
	937
37.5	938	(% style="color:blue" %)AT Command: AT+ALLDATAMOD
2.2	939
37.5	940	(% border="1" cellspacing="4" style="background-color:#f7faff; width:437px" %)
	941	\|=Command Example\|=Function\|=Response
2.2	942	\|AT+ALLDATAMOD=?\|Show current all data mode\|(((
	943	0
	944	OK
	945	)))
	946	\|AT+ALLDATAMOD=1\|Set all data mode is 1.\|OK
	947
37.5	948	(% style="color:blue" %)Downlink Command: 0xAB
2.2	949
	950	Format: Command Code (0xAB) followed by 1 bytes.
	951
37.5	952	* Example 1: Downlink Payload: AB 00 ~/~/ AT+ALLDATAMOD=0
	953	* Example 2: Downlink Payload: AB 01 ~/~/ AT+ALLDATAMOD=1
2.2	954
37.3	955	== 3.5 Set the splicing payload for uplink ==
	956
37.5	957
2.2	958	Feature, splicing payload for uplink.
	959
37.5	960	(% style="color:blue" %)AT Command: AT+DATAUP
2.2	961
37.5	962	(% border="1" cellspacing="4" style="background-color:#f7faff; width:510px" %)
	963	\|=(% style="width: 154px;" %)Command Example\|=(% style="width: 266px;" %)Function\|=Response
	964	\|(% style="width:154px" %)AT+DATAUP =?\|(% style="width:266px" %)Show current splicing payload for uplink mode\|(((
2.2	965	0
	966	OK
	967	)))
37.5	968	\|(% style="width:154px" %)AT+DATAUP =0\|(% style="width:266px" %)(((
2.2	969	Set splicing payload for uplink mode is 0.
	970	)))\|(((
	971	OK
	972	)))
37.5	973	\|(% 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
	974	\|(% style="width:154px" %)AT+DATAUP =1,20000\|(% style="width:266px" %)(((
37.3	975	Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
2.2	976	)))\|OK
	977
37.5	978	(% style="color:blue" %)Downlink Command: 0xAD
2.2	979
	980	Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
	981
37.6	982	* Example 1: Downlink Payload: AD 00 ~/~/ AT+DATAUP=0
	983	* Example 2: Downlink Payload: AD 01 ~/~/ AT+DATAUP =1
	984	* Example 3: Downlink Payload: AD 01 00 00 14 ~/~/ AT+DATAUP =1,20000
2.2	985
	986	This means that the interval is set to 0x000014=20S
	987
	988
37.3	989	== 3.6 Set the payload version ==
2.2	990
	991	Feature, Set the payload version.
	992
37.5	993	(% style="color:blue" %)AT Command: AT+PAYVER
2.2	994
37.6	995	(% border="1" cellspacing="4" style="background-color:#f7faff; width:437px" %)
	996	\|=(% style="width: 158px;" %)Command Example\|=(% style="width: 192px;" %)Function\|=Response
	997	\|(% style="width:158px" %)AT+PAYVER=?\|(% style="width:192px" %)Show current payload version\|(((
2.2	998	1
	999	OK
	1000	)))
37.6	1001	\|(% style="width:158px" %)AT+PAYVER=5\|(% style="width:192px" %)Set payload version is 5.\|OK
2.2	1002
37.5	1003	(% style="color:blue" %)Downlink Command: 0xAE
2.2	1004
	1005	Format: Command Code (0xAE) followed by 1 bytes.
	1006
37.6	1007	* Example 1: Downlink Payload: AE 01 ~/~/ AT+PAYVER=1
	1008	* Example 2: Downlink Payload: AE 05 ~/~/ AT+PAYVER=5
2.2	1009
37.3	1010	= 4. Battery & how to replace =
2.2	1011
37.3	1012	== 4.1 Battery Type ==
2.2	1013
	1014
37.5	1015	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	1016
	1017
2.2	1018	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1019
40.7	1020	[[image:1675234124233-857.png]]
2.2	1021
	1022
37.5	1023	Minimum Working Voltage for the SDI-12-LB:
2.2	1024
37.5	1025	SDI-12-LB: 2.45v ~~ 3.6v
2.2	1026
	1027
37.3	1028	== 4.2 Replace Battery ==
2.2	1029
37.3	1030
2.2	1031	Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	1032
	1033	And make sure the positive and negative pins match.
	1034
	1035
37.3	1036	== 4.3 Power Consumption Analyze ==
2.2	1037
	1038
	1039	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.
	1040
	1041	Instruction to use as below:
	1042
37.3	1043	(% 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	1044
37.3	1045	(% style="color:blue" %)Step 2:(%%) Open it and choose
2.2	1046
	1047	* Product Model
	1048	* Uplink Interval
	1049	* Working Mode
	1050
	1051	And the Life expectation in difference case will be shown on the right.
	1052
	1053
40.7	1054	[[image:1675234155374-163.png]]
2.2	1055
40.2	1056
2.2	1057	The battery related documents as below:
	1058
37.3	1059	* [[Battery Dimension>>https://www.dropbox.com/s/ox5g9njwjle7aw3/LSN50-Battery-Dimension.pdf?dl=0]],
	1060	* [[Lithium-Thionyl Chloride Battery datasheet, Tech Spec>>https://www.dropbox.com/sh/d4oyfnp8o94180o/AABQewCNSh5GPeQH86UxRgQQa?dl=0]]
	1061	* [[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	1062
40.7	1063	[[image:image-20230201145019-19.png]]
2.2	1064
	1065
37.3	1066	=== 4.3.1 Battery Note ===
2.2	1067
	1068
	1069	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.
	1070
	1071
37.3	1072	=== 4.3.2 Replace the battery ===
2.2	1073
	1074
37.5	1075	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	1076
37.5	1077	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	1078
	1079
37.3	1080	= 5. Remote Configure device =
2.2	1081
37.3	1082	== 5.1 Connect via BLE ==
2.2	1083
	1084
37.3	1085	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	1086
	1087
37.3	1088	== 5.2 AT Command Set ==
2.2	1089
	1090
	1091
37.3	1092	= 6. OTA firmware update =
	1093
	1094
2.2	1095	Please see this link for how to do OTA firmware update.
	1096
	1097	[[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/]]
	1098
	1099
40.2	1100	= 7. FAQ =
2.2	1101
40.2	1102	== 7.1 How to use AT Command to access device? ==
2.2	1103
	1104
40.2	1105	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]]
	1106
	1107
	1108	== 7.2 How to update firmware via UART port? ==
	1109
	1110
	1111	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]]
	1112
	1113
	1114	== 7.3 How to change the LoRa Frequency Bands/Region? ==
	1115
	1116
	1117	You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
	1118	When downloading the images, choose the required image file for download.
	1119
	1120
	1121	= 8. Order Info =
	1122
	1123
40.7	1124	(% style="color:blue" %)Part Number: SDI-12-LB-XXX
	1125
37.4	1126	XXX: The default frequency band
2.2	1127
40.7	1128	(% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1129	(% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1130	(% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1131	(% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1132	(% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1133	(% style="color:red" %)US915(%%): LoRaWAN US915 band
	1134	(% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1135	(% style="color:red" %)CN470(%%): LoRaWAN CN470 band
2.2	1136
	1137
40.2	1138	= 9. Packing Info =
37.3	1139
	1140
40.7	1141	(% style="color:#037691" %)Package Includes:
2.2	1142
37.3	1143	* SDI-12-LB SDI-12 to LoRaWAN Converter x 1
2.2	1144
40.7	1145	(% style="color:#037691" %)Dimension and weight:
2.2	1146
	1147	* Device Size: cm
	1148	* Device Weight: g
	1149	* Package Size / pcs : cm
	1150	* Weight / pcs : g
	1151
40.2	1152	= 10. Support =
37.3	1153
	1154
2.2	1155	* 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.
	1156
37.3	1157	* 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	1158
40.8	1159

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

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