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

Version 79.1 by Mengting Qiu on 2024/05/11 17:49

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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	(((
72.7	44	PS-LB/LS is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery (%%)or (% style="color:blue" %)solar powered + li-on 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)
	70	* Solar panel + 3000mAh Li-on 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
71.2	139	[[image:image-20240109160445-5.png\|\|height="284" width="214"]]
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
	145	* Storage temperature: -30℃~~80℃
51.1	146	* Operating temperature: 0℃~~50℃
9.2	147	* Material: 316 stainless steels
	148
72.4	149	== 1.5 Application and Installation ==
13.2	150
72.4	151	=== 1.5.1 Thread Installation Type ===
13.2	152
	153
42.17	154	(% style="color:blue" %)Application:
6.2	155
	156	* Hydraulic Pressure
	157	* Petrochemical Industry
	158	* Health and Medical
	159	* Food & Beverage Processing
	160	* Auto-controlling house
	161	* Constant Pressure Water Supply
	162	* Liquid Pressure measuring
	163
	164	Order the suitable thread size and install to measure the air / liquid pressure
	165
13.2	166	[[image:1675071670469-145.png]]
6.2	167
	168
72.4	169	=== 1.5.2 Immersion Type ===
6.2	170
	171
42.17	172	(% style="color:blue" %)Application:
6.2	173
	174	Liquid & Water Pressure / Level detect.
	175
13.2	176	[[image:1675071725288-579.png]]
6.2	177
	178
	179	The Immersion Type pressure sensor is shipped with the probe and device separately. When user got the device, below is the wiring to for connect the probe to the device.
	180
74.1	181	The Immersion Type Sensor has different variant which defined by Ixx. For example, this means two points:
6.2	182
74.1	183	* Cable Length: 10 Meters
	184	* Water Detect Range: 0 ~~ 10 Meters.
	185
13.2	186	[[image:1675071736646-450.png]]
6.2	187
	188
13.2	189	[[image:1675071776102-240.png]]
6.2	190
	191
72.4	192	== 1.6 Sleep mode and working mode ==
6.2	193
	194
42.17	195	(% 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.
6.2	196
42.17	197	(% 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.
6.2	198
	199
72.4	200	== 1.7 Button & LEDs ==
6.2	201
	202
71.2	203	[[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"]](% style="display:none" %)
6.2	204
53.28	205	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
72.15	206	\|=(% 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	207	\|(% 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" %)(((
42.17	208	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
6.2	209	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	210	)))
53.2	211	\|(% 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" %)(((
	212	(% style="background-color:#f2f2f2; color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
	213	(% style="background-color:#f2f2f2; color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
6.2	214	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.
	215	)))
62.8	216	\|(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.\|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device\|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)Red led(%%) will solid on for 5 seconds. Means PS-LB is in Deep Sleep Mode.
6.2	217
72.4	218	== 1.8 Pin Mapping ==
6.2	219
	220
15.2	221	[[image:1675072568006-274.png]]
6.2	222
	223
72.4	224	== 1.9 BLE connection ==
6.2	225
	226
72.7	227	PS-LB/LS support BLE remote configure.
6.2	228
	229
	230	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:
	231
	232	* Press button to send an uplink
	233	* Press button to active device.
	234	* Device Power on or reset.
	235
	236	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	237
	238
72.4	239	== 1.10 Mechanical ==
6.2	240
72.4	241	=== 1.10.1 for LB version(% style="display:none" %) (%%) ===
6.2	242
	243
72.2	244	[[image:image-20240109160800-6.png]]
6.2	245
	246
72.4	247	=== 1.10.2 for LS version ===
6.2	248
72.2	249
	250	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/WebHome/image-20231231203439-3.png?width=886&height=385&rev=1.1\|\|alt="image-20231231203439-3.png"]]
	251
	252
72.8	253	= 2. Configure PS-LB/LS to connect to LoRaWAN network =
26.2	254
	255	== 2.1 How it works ==
	256
	257
72.8	258	The PS-LB/LS is configured as (% style="color:#037691" %)LoRaWAN OTAA Class A(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and activate the 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	259
	260
26.2	261	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	262
	263
6.2	264	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.
	265
	266
26.2	267	[[image:1675144005218-297.png]]
6.2	268
	269
	270	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.
	271
	272
72.8	273	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from PS-LB/LS.
6.2	274
72.8	275	Each PS-LB/LS is shipped with a sticker with the default device EUI as below:
6.2	276
54.3	277	[[image:image-20230426085320-1.png\|\|height="234" width="504"]]
6.2	278
	279
	280	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	281
	282
42.17	283	(% style="color:blue" %)Register the device
6.2	284
26.2	285	[[image:1675144099263-405.png]]
6.2	286
	287
42.17	288	(% style="color:blue" %)Add APP EUI and DEV EUI
6.2	289
26.2	290	[[image:1675144117571-832.png]]
6.2	291
	292
42.17	293	(% style="color:blue" %)Add APP EUI in the application
6.2	294
	295
26.2	296	[[image:1675144143021-195.png]]
6.2	297
	298
42.17	299	(% style="color:blue" %)Add APP KEY
6.2	300
26.2	301	[[image:1675144157838-392.png]]
6.2	302
72.8	303	(% style="color:blue" %)Step 2:(%%) Activate on PS-LB/LS
6.2	304
	305
72.8	306	Press the button for 5 seconds to activate the PS-LB/LS.
6.2	307
42.17	308	(% 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.
6.2	309
	310	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	311
	312
27.2	313	== 2.3 Uplink Payload ==
6.2	314
27.2	315	=== 2.3.1 Device Status, FPORT~=5 ===
6.2	316
	317
72.8	318	Include device configure status. Once PS-LB/LS Joined the network, it will uplink this message to the server.
6.2	319
72.8	320	Users can also use the downlink command(0x26 01) to ask PS-LB/LS to resend this uplink.
6.2	321
	322
53.28	323	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
73.2	324	\|(% colspan="6" style="background-color:#4f81bd; color:white" %)Device Status (FPORT=5)
53.3	325	\|(% 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
	326	\|(% 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	327
	328	Example parse in TTNv3
	329
27.2	330	[[image:1675144504430-490.png]]
6.2	331
	332
72.8	333	(% style="color:#037691" %)Sensor Model(%%): For PS-LB/LS, this value is 0x16
6.2	334
42.17	335	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
6.2	336
42.17	337	(% style="color:#037691" %)Frequency Band:
6.2	338
	339	*0x01: EU868
	340
	341	*0x02: US915
	342
	343	*0x03: IN865
	344
	345	*0x04: AU915
	346
	347	*0x05: KZ865
	348
	349	*0x06: RU864
	350
	351	*0x07: AS923
	352
	353	*0x08: AS923-1
	354
	355	*0x09: AS923-2
	356
	357	*0x0a: AS923-3
	358
	359	*0x0b: CN470
	360
	361	*0x0c: EU433
	362
	363	*0x0d: KR920
	364
	365	*0x0e: MA869
	366
	367
42.17	368	(% style="color:#037691" %)Sub-Band:
6.2	369
	370	AU915 and US915:value 0x00 ~~ 0x08
	371
	372	CN470: value 0x0B ~~ 0x0C
	373
	374	Other Bands: Always 0x00
	375
	376
42.17	377	(% style="color:#037691" %)Battery Info:
6.2	378
	379	Check the battery voltage.
	380
	381	Ex1: 0x0B45 = 2885mV
	382
	383	Ex2: 0x0B49 = 2889mV
	384
	385
42.11	386	=== 2.3.2 Sensor value, FPORT~=2 ===
6.2	387
	388
	389	Uplink payload includes in total 9 bytes.
	390
	391
53.4	392	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
73.2	393	\|(% style="background-color:#4f81bd; color:white; width:97px" %)(((
37.2	394	Size(bytes)
73.2	395	)))\|(% 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
60.4	396	\|(% 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	397
37.2	398	[[image:1675144608950-310.png]]
6.2	399
	400
47.1	401	=== 2.3.3 Battery Info ===
45.1	402
	403
72.8	404	Check the battery voltage for PS-LB/LS.
6.2	405
	406	Ex1: 0x0B45 = 2885mV
	407
	408	Ex2: 0x0B49 = 2889mV
	409
	410
47.1	411	=== 2.3.4 Probe Model ===
45.1	412
6.2	413
72.8	414	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	415
	416
53.6	417	For example.
6.2	418
53.28	419	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
73.2	420	\|(% 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	421	\|(% 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
	422	\|(% 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
	423	\|(% 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	424
47.1	425	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	426
	427
47.1	428	=== 2.3.5 0~~20mA value (IDC_IN) ===
37.2	429
47.1	430
50.1	431	The output value from Pressure Probe, use together with Probe Model to get the pressure value or water level.
6.2	432
42.17	433	(% style="color:#037691" %)Example:
6.2	434
	435	27AE(H) = 10158 (D)/1000 = 10.158mA.
	436
	437
50.1	438	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:
	439
	440	[[image:image-20230225154759-1.png\|\|height="408" width="741"]]
	441
	442
47.1	443	=== 2.3.6 0~~30V value ( pin VDC_IN) ===
6.2	444
37.2	445
6.2	446	Measure the voltage value. The range is 0 to 30V.
	447
42.17	448	(% style="color:#037691" %)Example:
6.2	449
	450	138E(H) = 5006(D)/1000= 5.006V
	451
	452
47.1	453	=== 2.3.7 IN1&IN2&INT pin ===
6.2	454
37.2	455
6.2	456	IN1 and IN2 are used as digital input pins.
	457
42.17	458	(% style="color:#037691" %)Example:
6.2	459
42.17	460	09 (H): (0x09&0x08)>>3=1 IN1 pin is high level.
6.2	461
42.17	462	09 (H): (0x09&0x04)>>2=0 IN2 pin is low level.
6.2	463
	464
53.18	465	This data field shows if this packet is generated by (% style="color:blue" %)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	466
42.17	467	(% style="color:#037691" %)Example:
6.2	468
42.17	469	09 (H): (0x09&0x02)>>1=1 The level of the interrupt pin.
6.2	470
42.17	471	09 (H): 0x09&0x01=1 0x00: Normal uplink packet.
6.2	472
	473	0x01: Interrupt Uplink Packet.
	474
50.2	475
72.10	476	=== 2.3.8 Sensor value, FPORT~=7 ===
6.2	477
47.1	478
72.12	479	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
73.2	480	\|(% style="background-color:#4f81bd; color:white; width:65px" %)(((
47.1	481	Size(bytes)
73.2	482	)))\|(% style="background-color:#4f81bd; color:white; width:35px" %)2\|(% style="background-color:#4f81bd; color:white; width:400px" %)n
60.3	483	\|(% style="width:94px" %)Value\|(% style="width:43px" %)[[BAT>>\|\|anchor="H2.3.3BatteryInfo"]]\|(% style="width:367px" %)(((
47.1	484	Voltage value, each 2 bytes is a set of voltage values.
	485	)))
	486
	487	[[image:image-20230220171300-1.png\|\|height="207" width="863"]]
	488
	489	Multiple sets of data collected are displayed in this form：
	490
48.1	491	[voltage value1], [voltage value2], [voltage value3],…[voltage value n/2]
47.1	492
	493
45.2	494	=== 2.3.9 Decode payload in The Things Network ===
6.2	495
	496
37.2	497	While using TTN network, you can add the payload format to decode the payload.
6.2	498
	499
37.2	500	[[image:1675144839454-913.png]]
6.2	501
	502
72.8	503	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	504
	505
37.2	506	== 2.4 Uplink Interval ==
6.2	507
	508
72.8	509	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	510
	511
37.2	512	== 2.5 Show Data in DataCake IoT Server ==
6.2	513
	514
	515	[[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:
	516
	517
42.17	518	(% style="color:blue" %)Step 1: (%%)Be sure that your device is programmed and properly connected to the network at this time.
6.2	519
42.17	520	(% style="color:blue" %)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	521
	522
37.2	523	[[image:1675144951092-237.png]]
6.2	524
	525
37.2	526	[[image:1675144960452-126.png]]
6.2	527
	528
42.17	529	(% style="color:blue" %)Step 3:(%%) Create an account or log in Datacake.
6.2	530
72.8	531	(% style="color:blue" %)Step 4: (%%)Create PS-LB/LS product.
6.2	532
37.2	533	[[image:1675145004465-869.png]]
6.2	534
	535
37.2	536	[[image:1675145018212-853.png]]
6.2	537
	538
	539
37.2	540	[[image:1675145029119-717.png]]
6.2	541
	542
42.17	543	(% style="color:blue" %)Step 5: (%%)add payload decode
6.2	544
37.2	545	[[image:1675145051360-659.png]]
6.2	546
	547
37.2	548	[[image:1675145060812-420.png]]
6.2	549
	550
	551	After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
	552
	553
37.2	554	[[image:1675145081239-376.png]]
6.2	555
	556
37.2	557	== 2.6 Frequency Plans ==
6.2	558
	559
73.4	560	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	561
37.3	562	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
6.2	563
	564
37.4	565	== 2.7 Firmware Change Log ==
6.2	566
	567
	568	Firmware download link:
	569
	570	[[https:~~/~~/www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0>>url:https://www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0]]
	571
	572
72.8	573	= 3. Configure PS-LB/LS =
6.2	574
53.1	575	== 3.1 Configure Methods ==
37.4	576
53.7	577
72.8	578	PS-LB/LS supports below configure method:
6.2	579
53.1	580	* 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	581	* AT Command via UART Connection : See [[FAQ>>\|\|anchor="H6.FAQ"]].
53.1	582	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
6.2	583
53.1	584	== 3.2 General Commands ==
6.2	585
53.7	586
6.2	587	These commands are to configure:
	588
	589	* General system settings like: uplink interval.
	590	* LoRaWAN protocol & radio related command.
	591
53.1	592	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
6.2	593
53.1	594	[[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	595
	596
72.8	597	== 3.3 Commands special design for PS-LB/LS ==
53.1	598
53.15	599
72.8	600	These commands only valid for PS-LB/LS, as below:
6.2	601
	602
53.1	603	=== 3.3.1 Set Transmit Interval Time ===
6.2	604
37.5	605
6.2	606	Feature: Change LoRaWAN End Node Transmit Interval.
	607
42.21	608	(% style="color:blue" %)AT Command: AT+TDC
6.2	609
53.28	610	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
72.8	611	\|=(% 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	612	\|(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?\|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval\|(% style="background-color:#f2f2f2" %)(((
6.2	613	30000
	614	OK
	615	the interval is 30000ms = 30s
	616	)))
53.8	617	\|(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000\|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval\|(% style="background-color:#f2f2f2" %)(((
6.2	618	OK
	619	Set transmit interval to 60000ms = 60 seconds
	620	)))
	621
42.21	622	(% style="color:blue" %)Downlink Command: 0x01
6.2	623
	624	Format: Command Code (0x01) followed by 3 bytes time value.
	625
43.2	626	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	627
43.2	628	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	629	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
6.2	630
53.1	631	=== 3.3.2 Set Interrupt Mode ===
52.2	632
6.2	633
	634	Feature, Set Interrupt mode for GPIO_EXIT.
	635
42.21	636	(% style="color:blue" %)AT Command: AT+INTMOD
6.2	637
53.28	638	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
72.8	639	\|=(% 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	640	\|(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?\|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode\|(% style="background-color:#f2f2f2; width:157px" %)(((
6.2	641	0
	642	OK
47.1	643	the mode is 0 =Disable Interrupt
6.2	644	)))
53.9	645	\|(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2\|(% style="background-color:#f2f2f2; width:196px" %)(((
6.2	646	Set Transmit Interval
47.1	647	0. (Disable Interrupt),
	648	~1. (Trigger by rising and falling edge)
	649	2. (Trigger by falling edge)
	650	3. (Trigger by rising edge)
53.9	651	)))\|(% style="background-color:#f2f2f2; width:157px" %)OK
6.2	652
42.21	653	(% style="color:blue" %)Downlink Command: 0x06
6.2	654
	655	Format: Command Code (0x06) followed by 3 bytes.
	656
	657	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	658
43.2	659	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	660	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
6.2	661
53.1	662	=== 3.3.3 Set the output time ===
52.2	663
37.5	664
6.2	665	Feature, Control the output 3V3 , 5V or 12V.
	666
42.21	667	(% style="color:blue" %)AT Command: AT+3V3T
6.2	668
53.28	669	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:474px" %)
72.8	670	\|=(% 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	671	\|(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?\|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.\|(% style="background-color:#f2f2f2; width:116px" %)(((
6.2	672	0
	673	OK
	674	)))
53.10	675	\|(% 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" %)(((
6.2	676	OK
	677	default setting
	678	)))
53.10	679	\|(% 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" %)(((
6.2	680	OK
	681	)))
53.10	682	\|(% 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" %)(((
6.2	683	OK
	684	)))
	685
42.21	686	(% style="color:blue" %)AT Command: AT+5VT
6.2	687
53.28	688	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
72.8	689	\|=(% 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	690	\|(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?\|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.\|(% style="background-color:#f2f2f2; width:114px" %)(((
6.2	691	0
	692	OK
	693	)))
53.10	694	\|(% 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" %)(((
6.2	695	OK
	696	default setting
	697	)))
53.10	698	\|(% 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" %)(((
6.2	699	OK
	700	)))
53.10	701	\|(% 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" %)(((
6.2	702	OK
	703	)))
	704
42.21	705	(% style="color:blue" %)AT Command: AT+12VT
6.2	706
53.28	707	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
72.8	708	\|=(% 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	709	\|(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?\|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.\|(% style="background-color:#f2f2f2; width:83px" %)(((
6.2	710	0
	711	OK
	712	)))
53.10	713	\|(% 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
	714	\|(% 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" %)(((
6.2	715	OK
	716	)))
	717
42.21	718	(% style="color:blue" %)Downlink Command: 0x07
6.2	719
	720	Format: Command Code (0x07) followed by 3 bytes.
	721
	722	The first byte is which power, the second and third bytes are the time to turn on.
	723
42.32	724	* Example 1: Downlink Payload: 070101F4 ~-~--> AT+3V3T=500
	725	* Example 2: Downlink Payload: 0701FFFF ~-~--> AT+3V3T=65535
	726	* Example 3: Downlink Payload: 070203E8 ~-~--> AT+5VT=1000
	727	* Example 4: Downlink Payload: 07020000 ~-~--> AT+5VT=0
	728	* Example 5: Downlink Payload: 070301F4 ~-~--> AT+12VT=500
	729	* Example 6: Downlink Payload: 07030000 ~-~--> AT+12VT=0
6.2	730
53.1	731	=== 3.3.4 Set the Probe Model ===
52.2	732
37.5	733
47.1	734	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	735
53.27	736	(% style="color:blue" %)AT Command: AT +PROBE
47.1	737
	738	AT+PROBE=aabb
	739
	740	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.
	741
	742	When aa=01, it is the pressure mode, which converts the current into a pressure value;
	743
	744	bb represents which type of pressure sensor it is.
	745
	746	(A->01,B->02,C->03,D->04,E->05,F->06,G->07,H->08,I->09,J->0A,K->0B,L->0C)
	747
53.28	748	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
73.2	749	\|(% 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	750	\|(% 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	751	OK
61.1	752	\|(% 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	753	\|(% style="background-color:#f2f2f2; width:154px" %)(((
61.1	754	AT+PROBE=000A
53.12	755	)))\|(% style="background-color:#f2f2f2; width:269px" %)Set water depth sensor mode, 10m type.\|(% style="background-color:#f2f2f2" %)OK
62.1	756	\|(% 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	757	\|(% 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
	758	\|(% 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	759
53.27	760	(% style="color:blue" %)Downlink Command: 0x08
47.1	761
6.2	762	Format: Command Code (0x08) followed by 2 bytes.
	763
47.1	764	* Example 1: Downlink Payload: 080003 ~-~--> AT+PROBE=0003
	765	* Example 2: Downlink Payload: 080101 ~-~--> AT+PROBE=0101
6.2	766
75.2	767	=== 3.3.5 Multiple collections are one uplink (Since firmware V1.1) ===
52.2	768
43.3	769
45.1	770	Added AT+STDC command to collect the voltage of VDC_INPUT multiple times and upload it at one time.
	771
	772	(% style="color:blue" %)AT Command: AT +STDC
	773
47.1	774	AT+STDC=aa,bb,bb
	775
	776	(% style="color:#037691" %)aa:(%%)
	777	0: means disable this function and use TDC to send packets.
	778	1: means enable this function, use the method of multiple acquisitions to send packets.
	779	(% style="color:#037691" %)bb:(%%) Each collection interval (s), the value is 1~~65535
	780	(% style="color:#037691" %)cc:(%%) the number of collection times, the value is 1~~120
	781
53.28	782	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
73.2	783	\|(% 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	784	\|(% 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	785	OK
53.13	786	\|(% 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" %)(((
47.1	787	Attention:Take effect after ATZ
	788
	789	OK
45.1	790	)))
53.13	791	\|(% style="background-color:#f2f2f2; width:160px" %)AT+STDC=0, 0,0\|(% style="background-color:#f2f2f2; width:215px" %)(((
47.1	792	Use the TDC interval to send packets.(default)
	793
	794
53.13	795	)))\|(% style="background-color:#f2f2f2" %)(((
47.1	796	Attention:Take effect after ATZ
	797
45.1	798	OK
	799	)))
	800
	801	(% style="color:blue" %)Downlink Command: 0xAE
	802
	803	Format: Command Code (0x08) followed by 5 bytes.
	804
45.3	805	* Example 1: Downlink Payload: AE 01 02 58 12 ~-~--> AT+STDC=1,600,18
45.1	806
53.1	807	= 4. Battery & Power Consumption =
52.2	808
53.13	809
72.3	810	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	811
53.14	812	[[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	813
	814
53.1	815	= 5. OTA firmware update =
6.2	816
	817
42.2	818	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	819
	820
53.1	821	= 6. FAQ =
6.2	822
53.1	823	== 6.1 How to use AT Command via UART to access device? ==
6.2	824
	825
42.2	826	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	827
	828
53.1	829	== 6.2 How to update firmware via UART port? ==
6.2	830
	831
42.2	832	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	833
	834
53.1	835	== 6.3 How to change the LoRa Frequency Bands/Region? ==
6.2	836
	837
42.3	838	You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
6.2	839	When downloading the images, choose the required image file for download.
	840
	841
76.2	842	== 6.4 How to measure the depth of other liquids other than water? ==
76.1	843
	844
76.2	845	Test the current values at the depth of different liquids and convert them to a linear scale.
	846	Replace its ratio with the ratio of water to current in the decoder.
76.1	847
78.1	848	Example:
76.1	849
78.1	850	Measure the corresponding current of the sensor when the liquid depth is 2.04m and 0.51m.
	851
	852	Calculate scale factor：
	853	Use these two data to calculate the current and depth scaling factors：(7.888-5.035)/(2.04-0.51)=1.86470588235294
	854
	855	Calculation formula：
	856
	857	Use the calibration formula：(Current current - Minimum calibration current)/Scale factor + Minimum actual calibration height
	858
	859	Actual calculations：
	860
	861	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
	862
	863	Error：
	864
	865	0.009810726
	866
	867
	868	[[image:image-20240329175044-1.png]]
	869
62.3	870	= 7. Troubleshooting =
6.2	871
62.3	872	== 7.1 Water Depth Always shows 0 in payload ==
6.2	873
	874
56.1	875	If your device's IDC_intput_mA is normal, but your reading always shows 0, please refer to the following points:
	876
55.1	877	~1. Please set it to mod1
62.3	878
55.1	879	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	880
55.1	881	3. Check the connection status of the sensor
6.2	882
56.2	883
62.3	884	= 8. Order Info =
	885
	886
73.2	887	[[image:image-20240109172423-7.png]](% style="display:none" %)
62.3	888
	889
55.1	890	= 9. Packing Info =
	891
	892
42.21	893	(% style="color:#037691" %)Package Includes:
6.2	894
72.4	895	* PS-LB or PS-LS LoRaWAN Pressure Sensor
6.2	896
42.21	897	(% style="color:#037691" %)Dimension and weight:
6.2	898
	899	* Device Size: cm
	900	* Device Weight: g
	901	* Package Size / pcs : cm
	902	* Weight / pcs : g
	903
55.1	904	= 10. Support =
54.3	905
52.2	906
6.2	907	* 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	908
54.3	909	* 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]].
6.2	910
40.4	911

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

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