Wiki source code of PS-LB/LS -- LoRaWAN Air Water Pressure Sensor User Manual

Version 123.4 by Xiaoling on 2025/04/01 16:51

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70.3	4	(% style="text-align:center" %)
70.4	5	[[image:image-20240109154731-4.png\|\|height="671" width="945"]]
6.2	6
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70.3	9
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70.4	13	Table of Contents :
70.3	14
42.4	15	{{toc/}}
6.2	16
	17
	18
42.5	19
	20
	21
16.2	22	= 1. Introduction =
6.2	23
9.2	24	== 1.1 What is LoRaWAN Pressure Sensor ==
	25
	26
42.31	27	(((
72.7	28	The Dragino PS-LB/LS series sensors are (% style="color:blue" %)LoRaWAN Pressure Sensor(%%) for Internet of Things solution. PS-LB/LS can measure Air, Water pressure and liquid level and upload the sensor data via wireless to LoRaWAN IoT server.
42.31	29	)))
6.2	30
42.31	31	(((
72.7	32	The PS-LB/LS series sensors include (% style="color:blue" %)Thread Installation Type(%%) and (% style="color:blue" %)Immersion Type(%%), it supports different pressure range which can be used for different measurement requirement.
42.31	33	)))
6.2	34
42.31	35	(((
72.7	36	The LoRa wireless technology used in PS-LB/LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
42.31	37	)))
6.2	38
42.31	39	(((
72.7	40	PS-LB/LS supports BLE configure and wireless OTA update which make user easy to use.
42.31	41	)))
6.2	42
42.31	43	(((
97.1	44	PS-LB/LS is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery (%%)or (% style="color:blue" %)solar powered + Li-ion battery (%%), it is designed for long term use up to 5 years.
42.31	45	)))
6.2	46
42.31	47	(((
72.7	48	Each PS-LB/LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
42.31	49	)))
6.2	50
9.2	51	[[image:1675071321348-194.png]]
6.2	52
	53
9.2	54	== 1.2 Features ==
6.2	55
	56
	57	* LoRaWAN 1.0.3 Class A
	58	* Ultra-low power consumption
	59	* Measure air / gas or water pressure
	60	* Different pressure range available
	61	* Thread Installation Type or Immersion Type
	62	* Monitor Battery Level
	63	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	64	* Support Bluetooth v5.1 and LoRaWAN remote configure
	65	* Support wireless OTA update firmware
	66	* Uplink on periodically
	67	* Downlink to change configure
47.1	68	* Controllable 3.3v,5v and 12v output to power external sensor
70.6	69	* 8500mAh Li/SOCl2 Battery (PS-LB)
97.1	70	* Solar panel + 3000mAh Li-ion battery (PS-LS)
6.2	71
9.2	72	== 1.3 Specification ==
	73
	74
42.17	75	(% style="color:#037691" %)Micro Controller:
6.2	76
	77	* MCU: 48Mhz ARM
	78	* Flash: 256KB
	79	* RAM: 64KB
	80
42.17	81	(% style="color:#037691" %)Common DC Characteristics:
6.2	82
72.5	83	* Supply Voltage: Built-in Battery , 2.5v ~~ 3.6v
6.2	84	* Operating Temperature: -40 ~~ 85°C
	85
42.17	86	(% style="color:#037691" %)LoRa Spec:
6.2	87
57.1	88	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz,Band 2 (LF): 410 ~~ 528 Mhz
6.2	89	* Max +22 dBm constant RF output vs.
	90	* RX sensitivity: down to -139 dBm.
	91	* Excellent blocking immunity
	92
42.17	93	(% style="color:#037691" %)Current Input Measuring :
6.2	94
	95	* Range: 0 ~~ 20mA
	96	* Accuracy: 0.02mA
	97	* Resolution: 0.001mA
	98
42.17	99	(% style="color:#037691" %)Voltage Input Measuring:
6.2	100
	101	* Range: 0 ~~ 30v
	102	* Accuracy: 0.02v
	103	* Resolution: 0.001v
	104
42.17	105	(% style="color:#037691" %)Battery:
6.2	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
42.17	113	(% style="color:#037691" %)Power Consumption
6.2	114
	115	* Sleep Mode: 5uA @ 3.3v
	116	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	117
9.2	118	== 1.4 Probe Types ==
6.2	119
9.2	120	=== 1.4.1 Thread Installation Type ===
6.2	121
	122
9.2	123	[[image:1675071448299-229.png]]
6.2	124
9.2	125	* Hersman Pressure Transmitter
	126	* Measuring Range: -0.1 ~~ 0 ~~ 60MPa, see order info.
	127	* Accuracy: 0.2% F.S
	128	* Long-Term Stability: 0.2% F.S ±0.05%
	129	* Overload 200% F.S
	130	* Zero Temperature Drift: 0.03% FS/℃(≤100Kpa), 0.02%FS/℃(＞100Kpa)
	131	* FS Temperature Drift: 0.003% FS/℃(≤100Kpa), 0.002%FS/℃(＞100Kpa)
	132	* Storage temperature: -30℃~~80℃
	133	* Operating temperature: -20℃~~60℃
	134	* Connector Type: Various Types, see order info
6.2	135
9.2	136	=== 1.4.2 Immersion Type ===
6.2	137
	138
98.2	139	[[image:image-20240109160445-5.png\|\|height="221" width="166"]]
9.2	140
	141	* Immersion Type, Probe IP Level: IP68
	142	* Measuring Range: Measure range can be customized, up to 100m.
	143	* Accuracy: 0.2% F.S
	144	* Long-Term Stability: ±0.2% F.S / Year
98.3	145	* Storage temperature: -30°C~~80°C
	146	* Operating temperature: 0°C~~50°C
9.2	147	* Material: 316 stainless steels
	148
80.1	149	=== 1.4.3 Wireless Differential Air Pressure Sensor ===
	150
123.2	151	[[image:image-20240511174954-1.png\|\|height="215" width="215"]]
80.1	152
90.1	153	* Measuring Range: -100KPa~~0~~100KPa(Optional measuring range).
80.1	154	* Accuracy: 0.5% F.S, resolution is 0.05%.
	155	* Overload: 300% F.S
	156	* Zero temperature drift: ±0.03%F.S/°C
98.3	157	* Operating temperature: -20°C~~60°C
	158	* Storage temperature: -20°C~~60°C
80.1	159	* Compensation temperature: 0~~50°C
	160
72.4	161	== 1.5 Application and Installation ==
13.2	162
72.4	163	=== 1.5.1 Thread Installation Type ===
13.2	164
	165
123.2	166	Application:
6.2	167
	168	* Hydraulic Pressure
	169	* Petrochemical Industry
	170	* Health and Medical
	171	* Food & Beverage Processing
	172	* Auto-controlling house
	173	* Constant Pressure Water Supply
	174	* Liquid Pressure measuring
	175
	176	Order the suitable thread size and install to measure the air / liquid pressure
	177
13.2	178	[[image:1675071670469-145.png]]
6.2	179
	180
72.4	181	=== 1.5.2 Immersion Type ===
6.2	182
	183
123.2	184	Application:
6.2	185
	186	Liquid & Water Pressure / Level detect.
	187
13.2	188	[[image:1675071725288-579.png]]
6.2	189
	190
89.1	191	Below is the wiring to for connect the probe to the device.
6.2	192
74.1	193	The Immersion Type Sensor has different variant which defined by Ixx. For example, this means two points:
6.2	194
74.1	195	* Cable Length: 10 Meters
	196	* Water Detect Range: 0 ~~ 10 Meters.
	197
13.2	198	[[image:1675071736646-450.png]]
6.2	199
	200
13.2	201	[[image:1675071776102-240.png]]
6.2	202
119.1	203	Size of immersion type water depth sensor:
6.2	204
119.1	205	[[image:image-20250401102131-1.png\|\|height="268" width="707"]]
88.1	206
119.1	207
88.1	208	=== 1.5.3 Wireless Differential Air Pressure Sensor ===
	209
	210
123.2	211	Application:
88.1	212
	213	Indoor Air Control & Filter clogging Detect.
	214
	215	[[image:image-20240513100129-6.png]]
	216
	217	[[image:image-20240513100135-7.png]]
	218
	219
89.1	220	Below is the wiring to for connect the probe to the device.
88.1	221
	222	[[image:image-20240513093957-1.png]]
	223
	224
	225	Size of wind pressure transmitter:
	226
	227	[[image:image-20240513094047-2.png]]
	228
	229	Note: The above dimensions are measured by hand, and the numerical error of the shell is within ±0.2mm.
	230
	231
72.4	232	== 1.6 Sleep mode and working mode ==
6.2	233
	234
123.2	235	Deep Sleep Mode: Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
6.2	236
123.2	237	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.
6.2	238
	239
72.4	240	== 1.7 Button & LEDs ==
6.2	241
	242
123.2	243	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20240103160425-4.png?rev=1.1\|\|alt="image-20240103160425-4.png"]]
6.2	244
53.28	245	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	246	\|=(% style="width: 167px;background-color:#4F81BD;color:white" %)Behavior on ACT\|=(% style="width: 117px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 226px;background-color:#4F81BD;color:white" %)Action
53.2	247	\|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="background-color:#f2f2f2; width:117px" %)Send an uplink\|(% style="background-color:#f2f2f2; width:225px" %)(((
123.2	248
	249
	250	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, blue led will blink once.
6.2	251	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	252	)))
53.2	253	\|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s\|(% style="background-color:#f2f2f2; width:117px" %)Active Device\|(% style="background-color:#f2f2f2; width:225px" %)(((
123.2	254
	255
	256	Green led will fast blink 5 times, device will enter OTA mode for 3 seconds. And then start to JOIN LoRaWAN network.
	257	Green led will solidly turn on for 5 seconds after joined in network.
6.2	258	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.
	259	)))
123.2	260	\|(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.\|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device\|(% style="background-color:#f2f2f2; width:225px" %)Red led will solid on for 5 seconds. Means PS-LB is in Deep Sleep Mode.
6.2	261
72.4	262	== 1.8 Pin Mapping ==
6.2	263
	264
15.2	265	[[image:1675072568006-274.png]]
6.2	266
	267
72.4	268	== 1.9 BLE connection ==
6.2	269
	270
72.7	271	PS-LB/LS support BLE remote configure.
6.2	272
	273
	274	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:
	275
	276	* Press button to send an uplink
	277	* Press button to active device.
	278	* Device Power on or reset.
	279
	280	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	281
	282
72.4	283	== 1.10 Mechanical ==
6.2	284
98.3	285	=== 1.10.1 for LB version ===
6.2	286
	287
123.2	288	[[image:image-20250401163530-1.jpeg]]
6.2	289
	290
72.4	291	=== 1.10.2 for LS version ===
6.2	292
72.2	293
123.2	294	[[image:image-20250401163539-2.jpeg]]
72.2	295
	296
72.8	297	= 2. Configure PS-LB/LS to connect to LoRaWAN network =
26.2	298
	299	== 2.1 How it works ==
	300
	301
123.2	302	The PS-LB/LS is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and activate the PS-LB/LS. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
6.2	303
	304
26.2	305	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	306
	307
6.2	308	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.
	309
26.2	310	[[image:1675144005218-297.png]]
6.2	311
	312
	313	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.
	314
	315
123.2	316	Step 1: Create a device in TTN with the OTAA keys from PS-LB/LS.
6.2	317
72.8	318	Each PS-LB/LS is shipped with a sticker with the default device EUI as below:
6.2	319
54.3	320	[[image:image-20230426085320-1.png\|\|height="234" width="504"]]
6.2	321
	322
	323	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	324
	325
123.2	326	Register the device
6.2	327
26.2	328	[[image:1675144099263-405.png]]
6.2	329
	330
123.2	331	Add APP EUI and DEV EUI
6.2	332
26.2	333	[[image:1675144117571-832.png]]
6.2	334
	335
123.2	336	Add APP EUI in the application
6.2	337
	338
26.2	339	[[image:1675144143021-195.png]]
6.2	340
	341
123.2	342	Add APP KEY
6.2	343
26.2	344	[[image:1675144157838-392.png]]
6.2	345
123.2	346	Step 2: Activate on PS-LB/LS
6.2	347
	348
72.8	349	Press the button for 5 seconds to activate the PS-LB/LS.
6.2	350
123.2	351	Green led will fast blink 5 times, device will enter OTA mode for 3 seconds. And then start to JOIN LoRaWAN network. Green led will solidly turn on for 5 seconds after joined in network.
6.2	352
	353	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	354
	355
27.2	356	== 2.3 Uplink Payload ==
6.2	357
27.2	358	=== 2.3.1 Device Status, FPORT~=5 ===
6.2	359
	360
72.8	361	Include device configure status. Once PS-LB/LS Joined the network, it will uplink this message to the server.
6.2	362
72.8	363	Users can also use the downlink command(0x26 01) to ask PS-LB/LS to resend this uplink.
6.2	364
53.28	365	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	366	\|(% colspan="6" style="background-color:#4f81bd; color:white" %)Device Status (FPORT=5)
	367	\|(% style="background-color:#f2f2f2; width:103px" %)Size (bytes)\|(% style="background-color:#f2f2f2; width:72px" %)1\|(% style="background-color:#f2f2f2" %)2\|(% style="background-color:#f2f2f2; width:91px" %)1\|(% style="background-color:#f2f2f2; width:86px" %)1\|(% style="background-color:#f2f2f2; width:44px" %)2
	368	\|(% style="background-color:#f2f2f2; width:103px" %)Value\|(% style="background-color:#f2f2f2; width:72px" %)Sensor Model\|(% style="background-color:#f2f2f2" %)Firmware Version\|(% style="background-color:#f2f2f2; width:91px" %)Frequency Band\|(% style="background-color:#f2f2f2; width:86px" %)Sub-band\|(% style="background-color:#f2f2f2; width:44px" %)BAT
6.2	369
	370	Example parse in TTNv3
	371
27.2	372	[[image:1675144504430-490.png]]
6.2	373
	374
123.2	375	Sensor Model: For PS-LB/LS, this value is 0x16
6.2	376
123.2	377	Firmware Version: 0x0100, Means: v1.0.0 version
6.2	378
123.2	379	Frequency Band:
6.2	380
	381	*0x01: EU868
	382
	383	*0x02: US915
	384
	385	*0x03: IN865
	386
	387	*0x04: AU915
	388
	389	*0x05: KZ865
	390
	391	*0x06: RU864
	392
	393	*0x07: AS923
	394
	395	*0x08: AS923-1
	396
	397	*0x09: AS923-2
	398
	399	*0x0a: AS923-3
	400
	401	*0x0b: CN470
	402
	403	*0x0c: EU433
	404
	405	*0x0d: KR920
	406
	407	*0x0e: MA869
	408
	409
123.2	410	Sub-Band:
6.2	411
	412	AU915 and US915:value 0x00 ~~ 0x08
	413
	414	CN470: value 0x0B ~~ 0x0C
	415
	416	Other Bands: Always 0x00
	417
	418
123.2	419	Battery Info:
6.2	420
	421	Check the battery voltage.
	422
	423	Ex1: 0x0B45 = 2885mV
	424
	425	Ex2: 0x0B49 = 2889mV
	426
	427
42.11	428	=== 2.3.2 Sensor value, FPORT~=2 ===
6.2	429
	430
	431	Uplink payload includes in total 9 bytes.
	432
	433
123.2	434	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
73.2	435	\|(% style="background-color:#4f81bd; color:white; width:97px" %)(((
123.2	436
	437
	438	Size(bytes)
	439	)))\|(% style="background-color:#4f81bd; color:white; width:50px" %)2\|(% style="background-color:#4f81bd; color:white; width:71px" %)2\|(% style="background-color:#4f81bd; color:white; width:98px" %)2\|(% style="background-color:#4f81bd; color:white; width:73px" %)2\|(% style="background-color:#4f81bd; color:white; width:122px" %)1
60.4	440	\|(% style="width:97px" %)Value\|(% style="width:48px" %)[[BAT>>\|\|anchor="H2.3.3BatteryInfo"]]\|(% style="width:71px" %)[[Probe Model>>\|\|anchor="H2.3.4ProbeModel"]]\|(% style="width:98px" %)[[0 ~~~~ 20mA value>>\|\|anchor="H2.3.507E20mAvalue28IDC_IN29"]]\|(% style="width:73px" %)[[0 ~~~~ 30v value>>\|\|anchor="H2.3.607E30Vvalue28pinVDC_IN29"]]\|(% style="width:122px" %)[[IN1 &IN2 Interrupt flag>>\|\|anchor="H2.3.7IN126IN226INTpin"]]
6.2	441
37.2	442	[[image:1675144608950-310.png]]
6.2	443
	444
47.1	445	=== 2.3.3 Battery Info ===
45.1	446
	447
72.8	448	Check the battery voltage for PS-LB/LS.
6.2	449
	450	Ex1: 0x0B45 = 2885mV
	451
	452	Ex2: 0x0B49 = 2889mV
	453
	454
47.1	455	=== 2.3.4 Probe Model ===
45.1	456
6.2	457
72.8	458	PS-LB/LS has different kind of probe, 4~~20mA represent the full scale of the measuring range. So a 12mA output means different meaning for different probe.
6.2	459
	460
123.2	461	For example.
6.2	462
53.28	463	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	464	\|(% style="background-color:#4f81bd; color:white" %)Part Number\|(% style="background-color:#4f81bd; color:white" %)Probe Used\|(% style="background-color:#4f81bd; color:white" %)4~~20mA scale\|(% style="background-color:#4f81bd; color:white" %)Example: 12mA meaning
72.8	465	\|(% style="background-color:#f2f2f2" %)PS-LB/LS-I3\|(% style="background-color:#f2f2f2" %)immersion type with 3 meters cable\|(% style="background-color:#f2f2f2" %)0~~3 meters\|(% style="background-color:#f2f2f2" %)1.5 meters pure water
	466	\|(% style="background-color:#f2f2f2" %)PS-LB/LS-I5\|(% style="background-color:#f2f2f2" %)immersion type with 5 meters cable\|(% style="background-color:#f2f2f2" %)0~~5 meters\|(% style="background-color:#f2f2f2" %)2.5 meters pure water
	467	\|(% style="background-color:#f2f2f2" %)PS-LB/LS-T20-B\|(% style="background-color:#f2f2f2" %)T20 threaded probe\|(% style="background-color:#f2f2f2" %)0~~1MPa\|(% style="background-color:#f2f2f2" %)0.5MPa air / gas or water pressure
6.2	468
47.1	469	The probe model field provides the convenient for server to identical how it should parse the 4~~20mA sensor value and get the correct value.
6.2	470
	471
47.1	472	=== 2.3.5 0~~20mA value (IDC_IN) ===
37.2	473
47.1	474
123.2	475	The output value from Pressure Probe, use together with Probe Model to get the pressure value or water level.
6.2	476
123.2	477	Example:
6.2	478
	479	27AE(H) = 10158 (D)/1000 = 10.158mA.
	480
	481
50.1	482	Instead of pressure probe, User can also connect a general 4~~20mA in this port to support different types of 4~~20mA sensors. below is the connection example:
	483
	484	[[image:image-20230225154759-1.png\|\|height="408" width="741"]]
	485
	486
99.2	487	=== 2.3.6 0~~30V value (pin VDC_IN) ===
6.2	488
37.2	489
6.2	490	Measure the voltage value. The range is 0 to 30V.
	491
123.2	492	Example:
6.2	493
	494	138E(H) = 5006(D)/1000= 5.006V
	495
	496
47.1	497	=== 2.3.7 IN1&IN2&INT pin ===
6.2	498
37.2	499
6.2	500	IN1 and IN2 are used as digital input pins.
	501
123.2	502	Example:
6.2	503
42.17	504	09 (H): (0x09&0x08)>>3=1 IN1 pin is high level.
6.2	505
42.17	506	09 (H): (0x09&0x04)>>2=0 IN2 pin is low level.
6.2	507
	508
123.2	509	This data field shows if this packet is generated by Interrupt Pin or not. [[Click here>>\|\|anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up. Note: The Internet Pin is a separate pin in the screw terminal.
6.2	510
123.2	511	Example:
6.2	512
42.17	513	09 (H): (0x09&0x02)>>1=1 The level of the interrupt pin.
6.2	514
42.17	515	09 (H): 0x09&0x01=1 0x00: Normal uplink packet.
6.2	516
	517	0x01: Interrupt Uplink Packet.
	518
50.2	519
72.10	520	=== 2.3.8 Sensor value, FPORT~=7 ===
6.2	521
47.1	522
72.12	523	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
73.2	524	\|(% style="background-color:#4f81bd; color:white; width:65px" %)(((
123.2	525
	526
	527	Size(bytes)
	528	)))\|(% style="background-color:#4f81bd; color:white; width:35px" %)2\|(% style="background-color:#4f81bd; color:white; width:400px" %)n
60.3	529	\|(% style="width:94px" %)Value\|(% style="width:43px" %)[[BAT>>\|\|anchor="H2.3.3BatteryInfo"]]\|(% style="width:367px" %)(((
123.2	530
	531
47.1	532	Voltage value, each 2 bytes is a set of voltage values.
	533	)))
	534
	535	[[image:image-20230220171300-1.png\|\|height="207" width="863"]]
	536
	537	Multiple sets of data collected are displayed in this form：
	538
48.1	539	[voltage value1], [voltage value2], [voltage value3],…[voltage value n/2]
47.1	540
	541
45.2	542	=== 2.3.9 Decode payload in The Things Network ===
6.2	543
	544
37.2	545	While using TTN network, you can add the payload format to decode the payload.
6.2	546
37.2	547	[[image:1675144839454-913.png]]
6.2	548
	549
72.8	550	PS-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
6.2	551
	552
37.2	553	== 2.4 Uplink Interval ==
6.2	554
	555
72.8	556	The PS-LB/LS by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[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\|\|style="background-color: rgb(255, 255, 255);"]]
6.2	557
	558
37.2	559	== 2.5 Show Data in DataCake IoT Server ==
6.2	560
	561
	562	[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
	563
123.2	564	Step 1: Be sure that your device is programmed and properly connected to the network at this time.
6.2	565
123.2	566	Step 2: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:
6.2	567
37.2	568	[[image:1675144951092-237.png]]
6.2	569
	570
37.2	571	[[image:1675144960452-126.png]]
6.2	572
	573
123.2	574	Step 3: Create an account or log in Datacake.
6.2	575
123.2	576	Step 4: Create PS-LB/LS product.
6.2	577
37.2	578	[[image:1675145004465-869.png]]
6.2	579
	580
37.2	581	[[image:1675145018212-853.png]]
6.2	582
	583
37.2	584	[[image:1675145029119-717.png]]
6.2	585
	586
123.2	587	Step 5: add payload decode
6.2	588
37.2	589	[[image:1675145051360-659.png]]
6.2	590
	591
37.2	592	[[image:1675145060812-420.png]]
6.2	593
	594
	595	After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
	596
37.2	597	[[image:1675145081239-376.png]]
6.2	598
	599
93.1	600	== 2.6 Datalog Feature (Since V1.1) ==
6.2	601
99.2	602
93.1	603	When a user wants to retrieve sensor value, he can send a poll command from the IoT platform to ask the sensor to send value in the required time slot.
6.2	604
93.1	605
	606	=== 2.6.1 Unix TimeStamp ===
	607
99.2	608
101.3	609	PS-LB uses Unix TimeStamp format based on
93.1	610
123.2	611	[[image:image-20250401163826-3.jpeg]]
93.1	612
	613	Users can get this time from the link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	614
	615	Below is the converter example:
	616
123.2	617	[[image:image-20250401163906-4.jpeg]]
93.1	618
	619
	620	=== 2.6.2 Set Device Time ===
	621
99.2	622
93.1	623	There are two ways to set the device's time:
	624
	625
123.2	626	~1. Through LoRaWAN MAC Command (Default settings)
93.1	627
	628	Users need to set SYNCMOD=1 to enable sync time via the MAC command.
	629
	630	Once CPL01 Joined the LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to CPL01. If CPL01 fails to get the time from the server, CPL01 will use the internal time and wait for the next time request ~[[[via Device Status (FPORT=5)>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/#H2.3.1DeviceStatus2CFPORT3D5]]].
	631
123.2	632	Note: LoRaWAN Server needs to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature.
93.1	633
	634
123.2	635	2. Manually Set Time
93.1	636
	637	Users need to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
	638
	639
	640	=== 2.6.3 Poll sensor value ===
	641
	642	Users can poll sensor values based on timestamps. Below is the downlink command.
	643
116.1	644	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:470px" %)
123.2	645	\|=(% colspan="4" style="width: 160px; background-color:#4F81BD;color:white" %)Downlink Command to poll Open/Close status (0x31)
	646	\|(% style="background-color:#f2f2f2; width:67px" %)1byte\|(% style="background-color:#f2f2f2; width:145px" %)4bytes\|(% style="background-color:#f2f2f2; width:133px" %)4bytes\|(% style="background-color:#f2f2f2; width:163px" %)1byte
116.1	647	\|(% style="background-color:#f2f2f2; width:67px" %)31\|(% style="background-color:#f2f2f2; width:145px" %)Timestamp start\|(% style="background-color:#f2f2f2; width:133px" %)(((
123.2	648
	649
116.1	650	Timestamp end
	651	)))\|(% style="background-color:#f2f2f2; width:163px" %)Uplink Interval
	652
	653	Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
	654
	655	For example, downlink command[[image:image-20250117104812-1.png]]
	656
	657	Is to check 2024/12/20 09:34:59 to 2024/12/20 14:34:59's data
	658
	659	Uplink Internal =5s，means PS-LB will send one packet every 5s. range 5~~255s.
	660
	661
	662	=== 2.6.4 Datalog Uplink payload (FPORT~=3) ===
	663
	664
	665	The Datalog uplinks will use below payload format.
	666
123.2	667	Retrieval data payload:
116.1	668
123.2	669	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
116.1	670	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
123.2	671	Size(bytes)
	672	)))\|=(% style="width: 70px; background-color:#4F81BD;color:white" %)2\|=(% style="width: 70px; background-color:#4F81BD;color:white" %)2\|=(% style="width: 80px; background-color: rgb(79, 129, 189); color: white;" %)2\|=(% style="width: 150px; background-color: rgb(79, 129, 189); color: white;" %)1\|=(% style="width: 80px; background-color: rgb(79, 129, 189); color: white;" %)4
116.1	673	\|(% style="width:103px" %)Value\|(% style="width:68px" %)(((
123.2	674	Probe_mod
116.1	675	)))\|(% style="width:104px" %)(((
123.2	676	VDC_intput_V
116.1	677	)))\|(% style="width:83px" %)(((
123.2	678	IDC_intput_mA
116.1	679	)))\|(% style="width:201px" %)(((
	680	IN1_pin_level& IN2_pin_level& Exti_pin_level&Exti_status
	681	)))\|(% style="width:86px" %)Unix Time Stamp
123.4	682
	683
	684
123.2	685	IN1_pin_level & IN2_pin_level & Exti_pin_level & Exti_status:
116.1	686
	687	[[image:image-20250117104847-4.png]]
	688
	689
123.2	690	No ACK Message: 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for PNACKMD=1 feature)
116.1	691
123.2	692	Poll Message Flag: 1: This message is a poll message reply.
116.1	693
	694	* Poll Message Flag is set to 1.
	695
	696	* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	697
	698	For example, in US915 band, the max payload for different DR is:
	699
123.2	700	a) DR0: max is 11 bytes so one entry of data
116.1	701
123.2	702	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
116.1	703
123.2	704	c) DR2: total payload includes 11 entries of data
116.1	705
123.2	706	d) DR3: total payload includes 22 entries of data.
116.1	707
	708	If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0
	709
123.2	710	Example:
116.1	711
	712	If PS-LB-NA has below data inside Flash:
	713
	714	[[image:image-20250117104837-3.png]]
	715
	716
	717	If user sends below downlink command: 316788D9BF6788DB6305
	718
	719	Where : Start time: 6788D9BF = time 25/1/16 10:04:47
	720
	721	Stop time: 6788DB63 = time 25/1/16 10:11:47
	722
	723
123.2	724	PA-LB-NA will uplink this payload.
116.1	725
	726	[[image:image-20250117104827-2.png]]
	727
123.2	728
116.1	729	00001B620000406788D9BF 00000D130000406788D9FB 00000D120000406788DA37 00000D110000406788DA73 00000D100000406788DAAF 00000D100000406788DAEB 00000D0F0000406788DB27 00000D100000406788DB63
93.1	730
123.2	731
116.1	732	Where the first 11 bytes is for the first entry :
98.4	733
123.2	734
116.1	735	0000 0D10 0000 40 6788DB63
93.1	736
	737
123.2	738	Probe_mod = 0x0000 = 0000
93.1	739
	740
123.2	741	VDC_intput_V = 0x0D10/1000=3.344V
93.1	742
123.2	743	IDC_intput_mA = 0x0000/1000=0mA
93.1	744
	745
123.2	746	IN1_pin_level = (0x40& 0x08)? "High":"Low" = 0(Low)
116.1	747
123.2	748	IN2_pin_level = (0x40& 0x04)? "High":"Low" = 0(Low)
116.1	749
123.2	750	Exti_pin_level = (0x40& 0x02)? "High":"Low" = 0(Low)
116.1	751
123.2	752	Exti_status = (0x40& 0x01)? "True":"False" = 0(False)
117.1	753
	754
123.2	755	Unix time is 0x6788DB63 = 1737022307s = 2025/1/16 10:11:47
117.1	756
123.2	757	Its data format is:
	758
	759	[Probe_mod, VDC_intput_V, IDC_intput_mA, IN1_pin_level, IN2_pin_level, Exti_pin_level, water_deep, Data_time],[Probe_mod, VDC_intput_V, IDC_intput_mA, IN1_pin_level, IN2_pin_level, Exti_pin_level, water_deep, Data_time],...
	760
	761	Note: water_deep in the data needs to be converted using decoding to get it.
	762
	763
116.1	764	=== 2.6.5 Decoder in TTN V3 ===
	765
93.1	766	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/1652862574387-195.png?width=722&height=359&rev=1.1\|\|alt="1652862574387-195.png" height="359" width="722"]]
	767
	768	Please check the decoder from this link: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
	769
	770
	771	== 2.7 Frequency Plans ==
	772
	773
73.4	774	The PS-LB/LS uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.
6.2	775
98.1	776	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/a>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
6.2	777
	778
101.1	779	== 2.8 Report on Change Feature (Since firmware V1.2) ==
6.2	780
98.1	781	=== 2.8.1 Uplink payload(Enable ROC) ===
	782
	783
	784	Used to Monitor the IDC and VDC increments, and send ROC uplink when the IDC or VDC changes exceed.
	785
	786	With ROC enabled, the payload is as follows:
	787
98.5	788	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
98.1	789	\|(% style="background-color:#4f81bd; color:white; width:97px" %)(((
123.2	790
	791
	792	Size(bytes)
	793	)))\|(% style="background-color:#4f81bd; color:white; width:48px" %)2\|(% style="background-color:#4f81bd; color:white; width:71px" %)2\|(% style="background-color:#4f81bd; color:white; width:98px" %)2\|(% style="background-color:#4f81bd; color:white; width:73px" %)2\|(% style="background-color:#4f81bd; color:white; width:122px" %)1
98.1	794	\|(% style="width:97px" %)Value\|(% style="width:48px" %)[[BAT>>\|\|anchor="H2.3.3BatteryInfo"]]\|(% style="width:71px" %)[[Probe Model>>\|\|anchor="H2.3.4ProbeModel"]]\|(% style="width:98px" %)[[0 ~~~~ 20mA value>>\|\|anchor="H2.3.507E20mAvalue28IDC_IN29"]]\|(% style="width:73px" %)[[0 ~~~~ 30v value>>\|\|anchor="H2.3.607E30Vvalue28pinVDC_IN29"]]\|(% style="width:122px" %)(((
123.2	795
	796
98.5	797	[[IN1 &IN2 Interrupt flag>>\|\|anchor="H2.3.7IN126IN226INTpin"]] & ROC_flag
98.1	798	)))
	799
123.2	800	IN1 &IN2 , Interrupt flag , ROC_flag:
98.1	801
98.5	802	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
123.2	803	\|(% style="background-color:#4f81bd; color:white; width:50px" %)Size(bit)\|(% style="background-color:#4f81bd; color:white; width:60px" %)bit7\|(% style="background-color:#4f81bd; color:white; width:62px" %)bit6\|(% style="background-color:#4f81bd; color:white; width:62px" %)bit5\|(% style="background-color:#4f81bd; color:white; width:65px" %)bit4\|(% style="background-color:#4f81bd; color:white; width:56px" %)bit3\|(% style="background-color:#4f81bd; color:white; width:55px" %)bit2\|(% style="background-color:#4f81bd; color:white; width:55px" %)bit1\|(% style="background-color:#4f81bd; color:white; width:50px" %)bit0
98.1	804	\|(% style="width:75px" %)Value\|(% style="width:89px" %)IDC_Roc_flagL\|(% style="width:46.5834px" %)IDC_Roc_flagH\|(% style="width:1px" %)VDC_Roc_flagL\|(% style="width:89px" %)VDC_Roc_flagH\|(% style="width:89px" %)IN1_pin_level\|(% style="width:103px" %)IN2_pin_level\|(% style="width:103px" %)Exti_pin_level\|(% style="width:103px" %)Exti_status
	805
123.2	806	* IDC_Roc_flagL
98.1	807
123.2	808	80 (H): (0x80&0x80)=80(H)=1000 0000(B) bit7=1, "TRUE", This uplink is triggered when the decrease in the IDC compared to the last ROC refresh exceeds the set threshold.
98.1	809
	810	60 (H): (0x60&0x80)=0 bit7=0, "FALSE", This uplink is not triggered when the decrease in the IDC compared to the last ROC refresh exceeds the set threshold.
	811
	812
123.2	813	* IDC_Roc_flagH
98.1	814
123.2	815	60 (H): (0x60&0x40)=60(H)=01000 0000(B) bit6=1, "TRUE", This uplink is triggered when the increase in the value of the IDC compared to the last ROC refresh exceeds the set threshold.
98.1	816
	817	80 (H): (0x80&0x40)=0 bit6=0, "FALSE", This uplink is not triggered when the increase in the value of the IDC compared to the last ROC refresh exceeds the set threshold.
	818
	819
123.2	820	* VDC_Roc_flagL
98.1	821
123.2	822	20 (H): (0x20&0x20)=20(H)=0010 0000(B) bit5=1, "TRUE", This uplink is triggered when the decrease in the VDC compared to the last ROC refresh exceeds the set threshold.
98.1	823
	824	90 (H): (0x90&0x20)=0 bit5=0, "FALSE", This uplink is not triggered when the decrease in the VDC compared to the last ROC refresh exceeds the set threshold.
	825
	826
123.2	827	* VDC_Roc_flagH
98.1	828
123.2	829	90 (H): (0x90&0x10)=10(H)=0001 0000(B) bit4=1, "TRUE", This uplink is triggered when the increase in the value of the VDC compared to the last ROC refresh exceeds the set threshold.
98.1	830
	831	20 (H): (0x20&0x10)=0 bit4=0, "FALSE", This uplink is not triggered when the increase in the value of the VDC compared to the last ROC refresh exceeds the set threshold.
	832
	833
123.2	834	* IN1_pin_level & IN2_pin_level
98.1	835
	836	IN1 and IN2 are used as digital input pins.
	837
	838	80 (H): (0x80&0x08)=0 IN1 pin is low level.
	839
	840	80 (H): (0x09&0x04)=0 IN2 pin is low level.
	841
	842
123.2	843	* Exti_pin_level &Exti_status
98.1	844
	845	This data field shows whether the packet is generated by an interrupt pin.
	846
123.2	847	Note: The Internet pin of the old motherboard is a separate pin in the screw terminal, and the interrupt pin of the new motherboard(SIB V1.3) is the GPIO_EXTI pin.
98.1	848
123.2	849	Exti_pin_level: 80 (H): (0x80&0x02)=0 "low", The level of the interrupt pin.
98.1	850
123.2	851	Exti_status: 80 (H): (0x80&0x01)=0 "False", Normal uplink packet.
98.1	852
	853
	854	=== 2.8.2 Set the Report on Change ===
	855
	856
103.1	857	Feature: Get or Set the Report on Change.
	858
	859
	860	==== 2.8.2.1 Wave alarm mode ====
	861
	862	Feature: By setting the detection period and a change value, the IDC/VDC variable is monitored whether it exceeds the set change value. If this change value is exceeded, the ROC uplink is sent and the comparison value is flushed.
	863
123.2	864	* Change value: The amount by which the next detection value increases/decreases relative to the previous detection value.
	865	* Comparison value: A parameter to compare with the latest ROC test.
103.1	866
123.2	867	AT Command: AT+ROC
98.1	868
103.1	869	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
123.2	870	\|=(% style="width: 163px; background-color: rgb(79, 129, 189); color: white;" %)Command Example\|=(% style="width: 154px; background-color: rgb(79, 129, 189); color: white;" %)Parameters\|=(% style="width: 197px; background-color: rgb(79, 129, 189); color: white;" %)Response/Explanation
103.1	871	\|(% style="width:143px" %)AT+ROC=?\|(% style="width:154px" %)Show current ROC setting\|(% style="width:197px" %)(((
123.2	872
	873
98.1	874	0,0,0,0(default)
	875	OK
	876	)))
	877	\|(% colspan="1" rowspan="4" style="width:143px" %)(((
	878
	879
	880
	881
123.2	882
98.1	883	AT+ROC=a,b,c,d
103.1	884	)))\|(% style="width:154px" %)(((
	885
98.1	886
103.1	887
	888
	889
	890
123.2	891
	892	a: Enable or disable the ROC
103.1	893	)))\|(% style="width:197px" %)(((
123.2	894
103.1	895
123.2	896	0: off
	897	1: Turn on the wave alarm mode, send the ROC uplink when the increment exceeds the set parameter and refresh the comparison value.
	898
	899	2: Turn on the wave alarm mode, send the ROC uplink when the increment exceeds the set parameter and refresh the comparison value. In addition, the comparison value is refreshed when the device sends packets ([[TDC>>\|\|anchor="H3.3.1SetTransmitIntervalTime"]] or [[ACT>>\|\|anchor="H1.7Button26LEDs"]]).
98.1	900	)))
123.2	901	\|(% style="width:154px" %)b: Set the detection interval\|(% style="width:197px" %)(((
	902
	903
103.1	904	Range: 0~~65535s
	905	)))
123.2	906	\|(% style="width:154px" %)c: Setting the IDC change value\|(% style="width:197px" %)Unit: uA
	907	\|(% style="width:154px" %)d: Setting the VDC change value\|(% style="width:197px" %)Unit: mV
98.1	908
123.2	909	Example:
98.1	910
103.1	911	* AT+ROC=0,0,0,0 ~/~/The ROC function is not used.
	912	* AT+ROC=1,60,3000, 500 ~/~/ Check value every 60 seconds. lf there is change in IDC (>3mA) or VDC (>500mV), sends an ROC uplink, and the comparison value is refreshed.
	913	* AT+ROC=1,60,3000,0 ~/~/ Check value every 60 seconds. lf there is change in IDC (>3mA), send an ROC uplink and the comparison value of IDC is refreshed. dd=0 Means doesn't monitor Voltage.
	914	* AT+ROC=2,60,3000,0 ~/~/ Check value every 60 seconds. lf there is change in IDC (>3mA), send an ROC uplink and the comparison value of IDC is refreshed. dd=0 Means doesn't monitor Voltage. In addition, if the change in the IDC does not exceed 3mA, then the ROC uplink is not sent, and the comparison value is not refreshed by the ROC uplink packet. However, if the device TDC time arrives, or if the user manually sends packets, then the IDC comparison value is also refreshed.
98.1	915
123.2	916	Downlink Command: 0x09 aa bb cc dd
98.1	917
	918	Format: Function code (0x09) followed by 4 bytes.
	919
123.2	920	aa: 1 byte; Set the wave alarm mode.
98.1	921
123.2	922	bb: 2 bytes; Set the detection interval. (second)
98.1	923
123.2	924	cc: 2 bytes; Setting the IDC change threshold. (uA)
98.1	925
123.2	926	dd: 2 bytes; Setting the VDC change threshold. (mV)
98.1	927
123.2	928	Example:
98.1	929
123.2	930	* Downlink Payload: 09 01 00 3C 0B B8 01 F4 ~/~/Equal to AT+ROC=1,60,3000, 500
	931	* Downlink Payload: 09 01 00 3C 0B B8 00 00 ~/~/Equal to AT+ROC=1,60,3000,0
	932	* Downlink Payload: 09 02 00 3C 0B B8 00 00 ~/~/Equal to AT+ROC=2,60,3000,0
98.1	933
123.2	934	Screenshot of parsing example in TTN:
98.1	935
	936	* AT+ROC=1,60,3000, 500.
	937
99.2	938	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/PS-LB-NA--LoRaWAN_Analog_Sensor_User_Manual/WebHome/image-20241019170902-1.png?width=1454&height=450&rev=1.1\|\|alt="image-20241019170902-1.png"]]
98.1	939
	940
103.1	941	==== 2.8.2.2 Over-threshold alarm mode ====
	942
	943	Feature: Monitors whether the IDC/VDC exceeds the threshold by setting the detection period and threshold. Alarm if the threshold is exceeded.
	944
123.2	945	AT Command: AT+ROC=3,a,b,c,d,e
103.1	946
	947	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
123.2	948	\|=(% style="width: 163px; background-color: rgb(79, 129, 189); color: white;" %)Command Example\|=(% style="width: 160px; background-color: rgb(79, 129, 189); color: white;" %)Parameters\|=(% style="width: 185px; background-color: rgb(79, 129, 189); color: white;" %)Response/Explanation
103.1	949	\|(% style="width:143px" %)AT+ROC=?\|(% style="width:160px" %)Show current ROC setting\|(% style="width:185px" %)(((
123.2	950
	951
103.1	952	0,0,0,0(default)
	953	OK
	954	)))
	955	\|(% colspan="1" rowspan="5" style="width:143px" %)(((
	956
	957
	958
	959
123.2	960
	961	AT+ROC=3,a,b,c,d,e
103.1	962	)))\|(% style="width:160px" %)(((
123.2	963
	964
	965	a: Set the detection interval
103.1	966	)))\|(% style="width:185px" %)(((
123.2	967
	968
103.1	969	Range: 0~~65535s
	970	)))
123.2	971	\|(% style="width:160px" %)b: Set the IDC alarm trigger condition\|(% style="width:185px" %)(((
	972
103.1	973
123.2	974	0: Less than the set IDC threshold, Alarm
	975
	976	1: Greater than the set IDC threshold, Alarm
103.1	977	)))
108.1	978	\|(% style="width:160px" %)(((
123.2	979
	980
	981	c: IDC alarm threshold
108.1	982	)))\|(% style="width:185px" %)(((
123.2	983
	984
108.1	985	Unit: uA
	986	)))
123.2	987	\|(% style="width:160px" %)d: Set the VDC alarm trigger condition\|(% style="width:185px" %)(((
	988
103.1	989
123.2	990	0: Less than the set VDC threshold, Alarm
	991
	992	1: Greater than the set VDC threshold, Alarm
103.1	993	)))
123.2	994	\|(% style="width:160px" %)e: VDC alarm threshold\|(% style="width:185px" %)Unit: mV
103.1	995
123.2	996	Example:
103.1	997
108.1	998	* AT+ROC=3,60,0,3000,0,5000 ~/~/The data is checked every 60 seconds. If the IDC is less than 3mA or the VDC is less than 5000mV, an alarm is generated.
	999	* AT+ROC=3,180,1,3000,1,5000 ~/~/The data is checked every 180 seconds. If the IDC is greater than 3mA or the VDC is greater than 5000mV, an alarm is generated.
	1000	* AT+ROC=3,300,0,3000,1,5000 ~/~/The data is checked every 300 seconds. If the IDC is less than 3mA or the VDC is greater than 5000mV, an alarm is generated.
103.1	1001
123.2	1002	Downlink Command: 0x09 03 aa bb cc dd ee
103.1	1003
	1004	Format: Function code (0x09) followed by 03 and the remaining 5 bytes.
	1005
123.2	1006	aa: 2 bytes; Set the detection interval.(second)
103.1	1007
123.2	1008	bb: 1 byte; Set the IDC alarm trigger condition.
103.1	1009
123.2	1010	cc: 2 bytes; IDC alarm threshold.(uA)
103.1	1011
	1012
123.2	1013	dd: 1 byte; Set the VDC alarm trigger condition.
108.1	1014
123.2	1015	ee: 2 bytes; VDC alarm threshold.(mV)
103.1	1016
123.2	1017	Example:
103.1	1018
123.2	1019	* Downlink Payload: 09 03 00 3C 00 0B B8 00 13 38 ~/~/Equal to AT+ROC=3,60,0,3000,0,5000
	1020	* Downlink Payload: 09 03 00 b4 01 0B B8 01 13 38 ~/~/Equal to AT+ROC=3,60,1,3000,1,5000
	1021	* Downlink Payload: 09 03 01 2C 00 0B B8 01 13 38 ~/~/Equal to AT+ROC=3,60,0,3000,1,5000
103.1	1022
123.2	1023	Screenshot of parsing example in TTN:
103.1	1024
108.1	1025	* AT+ROC=3,60,0,3000,0,5000
103.1	1026
111.1	1027	[[image:image-20250116180030-2.png]]
103.1	1028
108.1	1029
98.1	1030	== 2.9 Firmware Change Log ==
	1031
	1032
123.2	1033	Firmware download link:
6.2	1034
	1035	[[https:~~/~~/www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0>>url:https://www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0]]
	1036
	1037
72.8	1038	= 3. Configure PS-LB/LS =
6.2	1039
53.1	1040	== 3.1 Configure Methods ==
37.4	1041
53.7	1042
72.8	1043	PS-LB/LS supports below configure method:
6.2	1044
123.2	1045	* AT Command via Bluetooth Connection (Recommand Way): [[BLE Configure Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
53.20	1046	* AT Command via UART Connection : See [[FAQ>>\|\|anchor="H6.FAQ"]].
53.1	1047	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
6.2	1048
53.1	1049	== 3.2 General Commands ==
6.2	1050
53.7	1051
6.2	1052	These commands are to configure:
	1053
	1054	* General system settings like: uplink interval.
	1055	* LoRaWAN protocol & radio related command.
	1056
53.1	1057	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
6.2	1058
53.1	1059	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
6.2	1060
	1061
72.8	1062	== 3.3 Commands special design for PS-LB/LS ==
53.1	1063
53.15	1064
72.8	1065	These commands only valid for PS-LB/LS, as below:
6.2	1066
	1067
53.1	1068	=== 3.3.1 Set Transmit Interval Time ===
6.2	1069
37.5	1070
6.2	1071	Feature: Change LoRaWAN End Node Transmit Interval.
	1072
123.2	1073	AT Command: AT+TDC
6.2	1074
53.28	1075	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	1076	\|=(% style="width: 160px; background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 160px; background-color:#4F81BD;color:white" %)Function\|=(% style="width: 190px;background-color:#4F81BD;color:white" %)Response
53.8	1077	\|(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?\|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval\|(% style="background-color:#f2f2f2" %)(((
123.2	1078
	1079
6.2	1080	30000
	1081	OK
	1082	the interval is 30000ms = 30s
	1083	)))
53.8	1084	\|(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000\|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval\|(% style="background-color:#f2f2f2" %)(((
123.2	1085
	1086
6.2	1087	OK
	1088	Set transmit interval to 60000ms = 60 seconds
	1089	)))
	1090
123.2	1091	Downlink Command: 0x01
6.2	1092
	1093	Format: Command Code (0x01) followed by 3 bytes time value.
	1094
43.2	1095	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
6.2	1096
43.2	1097	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1098	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
6.2	1099
53.1	1100	=== 3.3.2 Set Interrupt Mode ===
52.2	1101
6.2	1102
	1103	Feature, Set Interrupt mode for GPIO_EXIT.
	1104
123.2	1105	AT Command: AT+INTMOD
6.2	1106
53.28	1107	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	1108	\|=(% style="width: 154px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 196px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 160px;background-color:#4F81BD;color:white" %)Response
53.9	1109	\|(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?\|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode\|(% style="background-color:#f2f2f2; width:157px" %)(((
123.2	1110
	1111
6.2	1112	0
	1113	OK
47.1	1114	the mode is 0 =Disable Interrupt
6.2	1115	)))
53.9	1116	\|(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2\|(% style="background-color:#f2f2f2; width:196px" %)(((
123.2	1117
	1118
6.2	1119	Set Transmit Interval
47.1	1120	0. (Disable Interrupt),
	1121	~1. (Trigger by rising and falling edge)
	1122	2. (Trigger by falling edge)
	1123	3. (Trigger by rising edge)
53.9	1124	)))\|(% style="background-color:#f2f2f2; width:157px" %)OK
6.2	1125
123.2	1126	Downlink Command: 0x06
6.2	1127
	1128	Format: Command Code (0x06) followed by 3 bytes.
	1129
	1130	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1131
43.2	1132	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1133	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
6.2	1134
53.1	1135	=== 3.3.3 Set the output time ===
52.2	1136
37.5	1137
6.2	1138	Feature, Control the output 3V3 , 5V or 12V.
	1139
123.2	1140	AT Command: AT+3V3T
6.2	1141
53.28	1142	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:474px" %)
123.2	1143	\|=(% style="width: 154px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 201px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 119px;background-color:#4F81BD;color:white" %)Response
53.10	1144	\|(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?\|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.\|(% style="background-color:#f2f2f2; width:116px" %)(((
123.2	1145
	1146
6.2	1147	0
	1148	OK
	1149	)))
53.10	1150	\|(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=0\|(% style="background-color:#f2f2f2; width:201px" %)Normally open 3V3 power supply.\|(% style="background-color:#f2f2f2; width:116px" %)(((
123.2	1151
	1152
6.2	1153	OK
	1154	default setting
	1155	)))
53.10	1156	\|(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=1000\|(% style="background-color:#f2f2f2; width:201px" %)Close after a delay of 1000 milliseconds.\|(% style="background-color:#f2f2f2; width:116px" %)(((
123.2	1157
	1158
6.2	1159	OK
	1160	)))
53.10	1161	\|(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=65535\|(% style="background-color:#f2f2f2; width:201px" %)Normally closed 3V3 power supply.\|(% style="background-color:#f2f2f2; width:116px" %)(((
123.2	1162
	1163
6.2	1164	OK
	1165	)))
	1166
123.2	1167	AT Command: AT+5VT
6.2	1168
53.28	1169	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
123.2	1170	\|=(% style="width: 155px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 196px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 119px;background-color:#4F81BD;color:white" %)Response
53.10	1171	\|(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?\|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.\|(% style="background-color:#f2f2f2; width:114px" %)(((
123.2	1172
	1173
6.2	1174	0
	1175	OK
	1176	)))
53.10	1177	\|(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=0\|(% style="background-color:#f2f2f2; width:196px" %)Normally closed 5V power supply.\|(% style="background-color:#f2f2f2; width:114px" %)(((
123.2	1178
	1179
6.2	1180	OK
	1181	default setting
	1182	)))
53.10	1183	\|(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=1000\|(% style="background-color:#f2f2f2; width:196px" %)Close after a delay of 1000 milliseconds.\|(% style="background-color:#f2f2f2; width:114px" %)(((
123.2	1184
	1185
6.2	1186	OK
	1187	)))
53.10	1188	\|(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=65535\|(% style="background-color:#f2f2f2; width:196px" %)Normally open 5V power supply.\|(% style="background-color:#f2f2f2; width:114px" %)(((
123.2	1189
	1190
6.2	1191	OK
	1192	)))
	1193
123.2	1194	AT Command: AT+12VT
6.2	1195
53.28	1196	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
123.2	1197	\|=(% style="width: 156px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 199px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 88px;background-color:#4F81BD;color:white" %)Response
53.10	1198	\|(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?\|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.\|(% style="background-color:#f2f2f2; width:83px" %)(((
123.2	1199
	1200
6.2	1201	0
	1202	OK
	1203	)))
53.10	1204	\|(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=0\|(% style="background-color:#f2f2f2; width:199px" %)Normally closed 12V power supply.\|(% style="background-color:#f2f2f2; width:83px" %)OK
	1205	\|(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=500\|(% style="background-color:#f2f2f2; width:199px" %)Close after a delay of 500 milliseconds.\|(% style="background-color:#f2f2f2; width:83px" %)(((
123.2	1206
	1207
6.2	1208	OK
	1209	)))
	1210
123.2	1211	Downlink Command: 0x07
6.2	1212
	1213	Format: Command Code (0x07) followed by 3 bytes.
	1214
	1215	The first byte is which power, the second and third bytes are the time to turn on.
	1216
123.2	1217	* Example 1: Downlink Payload: 070101F4 ~-~--> AT+3V3T=500
	1218	* Example 2: Downlink Payload: 0701FFFF ~-~--> AT+3V3T=65535
	1219	* Example 3: Downlink Payload: 070203E8 ~-~--> AT+5VT=1000
	1220	* Example 4: Downlink Payload: 07020000 ~-~--> AT+5VT=0
	1221	* Example 5: Downlink Payload: 070301F4 ~-~--> AT+12VT=500
	1222	* Example 6: Downlink Payload: 07030000 ~-~--> AT+12VT=0
6.2	1223
123.2	1224	Note: Before v1.2, the maximum settable time of 3V3T, 5VT and 12VT is 65535 milliseconds. After v1.2, the maximum settable time of 3V3T, 5VT and 12VT is 180 seconds.
101.1	1225
123.2	1226	Therefore, the corresponding downlink command is increased by one byte to five bytes.
101.1	1227
123.2	1228	Example:
101.1	1229
123.2	1230	* 120s=120000ms(D) =0x01D4C0(H), Downlink Payload: 07 01 01 D4 C0 ~-~--> AT+3V3T=120000
	1231	* 100s=100000ms(D) =0x0186A0(H), Downlink Payload: 07 02 01 86 A0 ~-~--> AT+5VT=100000
	1232	* 80s=80000ms(D) =0x013880(H), Downlink Payload: 07 03 01 38 80 ~-~--> AT+12VT=80000
101.1	1233
53.1	1234	=== 3.3.4 Set the Probe Model ===
52.2	1235
37.5	1236
47.1	1237	Users need to configure this parameter according to the type of external probe. In this way, the server can decode according to this value, and convert the current value output by the sensor into water depth or pressure value.
6.2	1238
123.2	1239	AT Command: AT +PROBE
47.1	1240
	1241	AT+PROBE=aabb
	1242
	1243	When aa=00, it is the water depth mode, and the current is converted into the water depth value; bb is the probe at a depth of several meters.
	1244
	1245	When aa=01, it is the pressure mode, which converts the current into a pressure value;
	1246
	1247	bb represents which type of pressure sensor it is.
	1248
	1249	(A->01,B->02,C->03,D->04,E->05,F->06,G->07,H->08,I->09,J->0A,K->0B,L->0C)
	1250
96.1	1251	When aa=02, it is the Differential Pressure Sensor , which converts the current into a pressure value;
	1252
	1253	bb represents which type of pressure sensor it is.
	1254
	1255	(0~~100Pa->01,0~~200Pa->02,0~~300Pa->03,0~~1KPa->04,0~~2KPa->05,0~~3KPa->06,0~~4KPa->07,0~~5KPa->08,0~~10KPa->09,-100~~ 100Pa->0A,-200~~ 200Pa->0B,-1~~ 1KPa->0C)
	1256
53.28	1257	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	1258	\|(% style="background-color:#4f81bd; color:white; width:154px" %)Command Example\|(% style="background-color:#4f81bd; color:white; width:269px" %)Function\|(% style="background-color:#4f81bd; color:white" %)Response
61.1	1259	\|(% style="background-color:#f2f2f2; width:154px" %)AT+PROBE=?\|(% style="background-color:#f2f2f2; width:269px" %)Get or Set the probe model.\|(% style="background-color:#f2f2f2" %)0
6.2	1260	OK
61.1	1261	\|(% style="background-color:#f2f2f2; width:154px" %)AT+PROBE=0003\|(% style="background-color:#f2f2f2; width:269px" %)Set water depth sensor mode, 3m type.\|(% style="background-color:#f2f2f2" %)OK
53.12	1262	\|(% style="background-color:#f2f2f2; width:154px" %)(((
123.2	1263
	1264
61.1	1265	AT+PROBE=000A
53.12	1266	)))\|(% style="background-color:#f2f2f2; width:269px" %)Set water depth sensor mode, 10m type.\|(% style="background-color:#f2f2f2" %)OK
62.1	1267	\|(% style="background-color:#f2f2f2; width:154px" %)AT+PROBE=0064\|(% style="background-color:#f2f2f2; width:269px" %)Set water depth sensor mode, 100m type.\|(% style="background-color:#f2f2f2" %)OK
61.1	1268	\|(% style="background-color:#f2f2f2; width:154px" %)AT+PROBE=0101\|(% style="background-color:#f2f2f2; width:269px" %)Set pressure transmitters mode, first type(A).\|(% style="background-color:#f2f2f2" %)OK
	1269	\|(% style="background-color:#f2f2f2; width:154px" %)AT+PROBE=0000\|(% style="background-color:#f2f2f2; width:269px" %)Initial state, no settings.\|(% style="background-color:#f2f2f2" %)OK
6.2	1270
123.2	1271	Downlink Command: 0x08
47.1	1272
6.2	1273	Format: Command Code (0x08) followed by 2 bytes.
	1274
123.2	1275	* Example 1: Downlink Payload: 080003 ~-~--> AT+PROBE=0003
	1276	* Example 2: Downlink Payload: 080101 ~-~--> AT+PROBE=0101
6.2	1277
75.2	1278	=== 3.3.5 Multiple collections are one uplink (Since firmware V1.1) ===
52.2	1279
43.3	1280
94.1	1281	Added AT+STDC command to collect the voltage of VDC_INPUT/IDC_INPUT multiple times and upload it at one time.
45.1	1282
123.2	1283	AT Command: AT +STDC
45.1	1284
47.1	1285	AT+STDC=aa,bb,bb
	1286
123.2	1287	aa:
	1288	0: means disable this function and use TDC to send packets.
	1289	1: means that the function is enabled to send packets by collecting VDC data for multiple times.
	1290	2: means that the function is enabled to send packets by collecting IDC data for multiple times.
	1291	bb: Each collection interval (s), the value is 1~~65535
	1292	cc: the number of collection times, the value is 1~~120
47.1	1293
53.28	1294	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
123.2	1295	\|(% style="background-color:#4f81bd; color:white; width:160px" %)Command Example\|(% style="background-color:#4f81bd; color:white; width:215px" %)Function\|(% style="background-color:#4f81bd; color:white" %)Response
53.13	1296	\|(% style="background-color:#f2f2f2; width:160px" %)AT+STDC=?\|(% style="background-color:#f2f2f2; width:215px" %)Get the mode of multiple acquisitions and one uplink.\|(% style="background-color:#f2f2f2" %)1,10,18
45.1	1297	OK
53.13	1298	\|(% style="background-color:#f2f2f2; width:160px" %)AT+STDC=1,10,18\|(% style="background-color:#f2f2f2; width:215px" %)Set the mode of multiple acquisitions and one uplink, collect once every 10 seconds, and report after 18 times.\|(% style="background-color:#f2f2f2" %)(((
123.2	1299
	1300
47.1	1301	Attention:Take effect after ATZ
	1302
	1303	OK
45.1	1304	)))
53.13	1305	\|(% style="background-color:#f2f2f2; width:160px" %)AT+STDC=0, 0,0\|(% style="background-color:#f2f2f2; width:215px" %)(((
123.2	1306
	1307
47.1	1308	Use the TDC interval to send packets.(default)
	1309
	1310
53.13	1311	)))\|(% style="background-color:#f2f2f2" %)(((
123.2	1312
	1313
47.1	1314	Attention:Take effect after ATZ
	1315
45.1	1316	OK
	1317	)))
	1318
123.2	1319	Downlink Command: 0xAE
45.1	1320
94.1	1321	Format: Command Code (0xAE) followed by 4 bytes.
45.1	1322
123.2	1323	* Example 1: Downlink Payload: AE 01 02 58 12 ~-~--> AT+STDC=1,600,18
45.1	1324
53.1	1325	= 4. Battery & Power Consumption =
52.2	1326
53.13	1327
72.3	1328	PS-LB use ER26500 + SPC1520 battery pack and PS-LS use 3000mAh Recharable Battery with Solar Panel. See below link for detail information about the battery info and how to replace.
6.2	1329
123.2	1330	[[Battery Info & Power Consumption Analyze>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
37.6	1331
	1332
53.1	1333	= 5. OTA firmware update =
6.2	1334
	1335
42.2	1336	Please see this link for how to do OTA firmware update: [[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/]]
6.2	1337
	1338
53.1	1339	= 6. FAQ =
6.2	1340
53.1	1341	== 6.1 How to use AT Command via UART to access device? ==
6.2	1342
	1343
42.2	1344	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]]
6.2	1345
	1346
53.1	1347	== 6.2 How to update firmware via UART port? ==
6.2	1348
	1349
42.2	1350	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]]
6.2	1351
	1352
53.1	1353	== 6.3 How to change the LoRa Frequency Bands/Region? ==
6.2	1354
	1355
42.3	1356	You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
6.2	1357	When downloading the images, choose the required image file for download.
	1358
	1359
76.2	1360	== 6.4 How to measure the depth of other liquids other than water? ==
76.1	1361
	1362
76.2	1363	Test the current values at the depth of different liquids and convert them to a linear scale.
	1364	Replace its ratio with the ratio of water to current in the decoder.
76.1	1365
123.2	1366	Example:
76.1	1367
78.1	1368	Measure the corresponding current of the sensor when the liquid depth is 2.04m and 0.51m.
	1369
123.2	1370	Calculate scale factor：
78.1	1371	Use these two data to calculate the current and depth scaling factors：(7.888-5.035)/(2.04-0.51)=1.86470588235294
	1372
123.2	1373	Calculation formula：
78.1	1374
	1375	Use the calibration formula：(Current current - Minimum calibration current)/Scale factor + Minimum actual calibration height
	1376
123.2	1377	Actual calculations：
78.1	1378
	1379	Use this formula to calculate the value corresponding to the current at a depth of 1.5 meters: (6.918-5.035)/1.86470588235294+0.51=1.519810726
	1380
123.2	1381	Error：
78.1	1382
	1383	0.009810726
	1384
	1385
	1386	[[image:image-20240329175044-1.png]]
	1387
62.3	1388	= 7. Troubleshooting =
6.2	1389
62.3	1390	== 7.1 Water Depth Always shows 0 in payload ==
6.2	1391
	1392
56.1	1393	If your device's IDC_intput_mA is normal, but your reading always shows 0, please refer to the following points:
	1394
55.1	1395	~1. Please set it to mod1
62.3	1396
55.1	1397	2. Please set the command [[AT+PROBE>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/PS-LB%20--%20LoRaWAN%20Pressure%20Sensor/#H3.3.4SettheProbeModel]] according to the model of your sensor
62.3	1398
55.1	1399	3. Check the connection status of the sensor
6.2	1400
56.2	1401
62.3	1402	= 8. Order Info =
	1403
	1404
	1405
99.2	1406	[[image:image-20241021093209-1.png]]
62.3	1407
55.1	1408	= 9. Packing Info =
	1409
	1410
123.2	1411	Package Includes:
6.2	1412
72.4	1413	* PS-LB or PS-LS LoRaWAN Pressure Sensor
6.2	1414
123.2	1415	Dimension and weight:
6.2	1416
	1417	* Device Size: cm
	1418	* Device Weight: g
	1419	* Package Size / pcs : cm
	1420	* Weight / pcs : g
	1421
55.1	1422	= 10. Support =
54.3	1423
52.2	1424
6.2	1425	* 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.
42.20	1426
54.3	1427	* 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.cc>>mailto:Support@dragino.cc]].

Wiki source code of PS-LB/LS -- LoRaWAN Air Water Pressure Sensor User Manual

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