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

Version 42.28 by Xiaoling on 2023/01/31 16:47

version	line-number	content
16.2	1	[[image:image-20230131115217-1.png]]
6.2	2
	3
	4
	5	Table of Contents：
	6
42.4	7	{{toc/}}
6.2	8
	9
	10
42.5	11
	12
	13
16.2	14	= 1. Introduction =
6.2	15
9.2	16	== 1.1 What is LoRaWAN Pressure Sensor ==
	17
	18
42.17	19	The Dragino PS-LB series sensors are (% style="color:blue" %)LoRaWAN Pressure Sensor(%%) for Internet of Things solution. PS-LB can measure Air, Water pressure and liquid level and upload the sensor data via wireless to LoRaWAN IoT server.
6.2	20
42.17	21	The PS-LB 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.
6.2	22
	23	The LoRa wireless technology used in PS-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
	24
	25	PS-LB supports BLE configure and wireless OTA update which make user easy to use.
	26
42.17	27	PS-LB is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), it is designed for long term use up to 5 years.
6.2	28
	29	Each PS-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
	30
9.2	31	[[image:1675071321348-194.png]]
6.2	32
	33
	34
9.2	35	== 1.2 Features ==
6.2	36
	37
	38	* LoRaWAN 1.0.3 Class A
	39	* Ultra-low power consumption
	40	* Measure air / gas or water pressure
	41	* Different pressure range available
	42	* Thread Installation Type or Immersion Type
	43	* Monitor Battery Level
	44	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	45	* Support Bluetooth v5.1 and LoRaWAN remote configure
	46	* Support wireless OTA update firmware
	47	* Uplink on periodically
	48	* Downlink to change configure
	49	* 8500mAh Battery for long term use
	50
9.2	51	== 1.3 Specification ==
	52
	53
42.17	54	(% style="color:#037691" %)Micro Controller:
6.2	55
	56	* MCU: 48Mhz ARM
	57	* Flash: 256KB
	58	* RAM: 64KB
	59
42.17	60	(% style="color:#037691" %)Common DC Characteristics:
6.2	61
	62	* Supply Voltage: 2.5v ~~ 3.6v
	63	* Operating Temperature: -40 ~~ 85°C
	64
42.17	65	(% style="color:#037691" %)LoRa Spec:
6.2	66
	67	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	68	* Max +22 dBm constant RF output vs.
	69	* RX sensitivity: down to -139 dBm.
	70	* Excellent blocking immunity
	71
42.17	72	(% style="color:#037691" %)Current Input Measuring :
6.2	73
	74	* Range: 0 ~~ 20mA
	75	* Accuracy: 0.02mA
	76	* Resolution: 0.001mA
	77
42.17	78	(% style="color:#037691" %)Voltage Input Measuring:
6.2	79
	80	* Range: 0 ~~ 30v
	81	* Accuracy: 0.02v
	82	* Resolution: 0.001v
	83
42.17	84	(% style="color:#037691" %)Battery:
6.2	85
	86	* Li/SOCI2 un-chargeable battery
	87	* Capacity: 8500mAh
	88	* Self-Discharge: <1% / Year @ 25°C
	89	* Max continuously current: 130mA
	90	* Max boost current: 2A, 1 second
	91
42.17	92	(% style="color:#037691" %)Power Consumption
6.2	93
	94	* Sleep Mode: 5uA @ 3.3v
	95	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	96
9.2	97	== 1.4 Probe Types ==
6.2	98
9.2	99	=== 1.4.1 Thread Installation Type ===
6.2	100
	101
9.2	102	[[image:1675071448299-229.png]]
6.2	103
9.2	104	* Hersman Pressure Transmitter
	105	* Measuring Range: -0.1 ~~ 0 ~~ 60MPa, see order info.
	106	* Accuracy: 0.2% F.S
	107	* Long-Term Stability: 0.2% F.S ±0.05%
	108	* Overload 200% F.S
	109	* Zero Temperature Drift: 0.03% FS/℃(≤100Kpa), 0.02%FS/℃(＞100Kpa)
	110	* FS Temperature Drift: 0.003% FS/℃(≤100Kpa), 0.002%FS/℃(＞100Kpa)
	111	* Storage temperature: -30℃~~80℃
	112	* Operating temperature: -20℃~~60℃
	113	* Connector Type: Various Types, see order info
6.2	114
9.2	115	=== 1.4.2 Immersion Type ===
6.2	116
	117
9.2	118	[[image:1675071521308-426.png]]
	119
	120	* Immersion Type, Probe IP Level: IP68
	121	* Measuring Range: Measure range can be customized, up to 100m.
	122	* Accuracy: 0.2% F.S
	123	* Long-Term Stability: ±0.2% F.S / Year
	124	* Overload 200% F.S
	125	* Zero Temperature Drift: ±2% F.S)
	126	* FS Temperature Drift: ±2% F.S
	127	* Storage temperature: -30℃~~80℃
	128	* Operating temperature: -40℃~~85℃
	129	* Material: 316 stainless steels
	130
13.2	131	== 1.5 Probe Dimension ==
6.2	132
	133
13.2	134
	135
	136	== 1.6 Application and Installation ==
	137
	138	=== 1.6.1 Thread Installation Type ===
	139
	140
42.17	141	(% style="color:blue" %)Application:
6.2	142
	143	* Hydraulic Pressure
	144	* Petrochemical Industry
	145	* Health and Medical
	146	* Food & Beverage Processing
	147	* Auto-controlling house
	148	* Constant Pressure Water Supply
	149	* Liquid Pressure measuring
	150
	151	Order the suitable thread size and install to measure the air / liquid pressure
	152
13.2	153	[[image:1675071670469-145.png]]
6.2	154
	155
13.2	156	=== 1.6.2 Immersion Type ===
6.2	157
	158
42.17	159	(% style="color:blue" %)Application:
6.2	160
	161	Liquid & Water Pressure / Level detect.
	162
13.2	163	[[image:1675071725288-579.png]]
6.2	164
	165
	166	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.
	167
	168
13.2	169	[[image:1675071736646-450.png]]
6.2	170
	171
13.2	172	[[image:1675071776102-240.png]]
6.2	173
	174
14.2	175	== 1.7 Sleep mode and working mode ==
6.2	176
	177
42.17	178	(% 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	179
42.17	180	(% 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	181
	182
14.2	183	== 1.8 Button & LEDs ==
6.2	184
	185
14.2	186	[[image:1675071855856-879.png]]
6.2	187
	188
27.2	189	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.22	190	\|=(% style="width: 150px;" %)Behavior on ACT\|=(% style="width: 90px;" %)Function\|=Action
	191	\|(% style="width:260px" %)Pressing ACT between 1s < time < 3s\|(% style="width:100px" %)Send an uplink\|(((
42.17	192	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
6.2	193	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	194	)))
16.3	195	\|(% style="width:138px" %)Pressing ACT for more than 3s\|(% style="width:100px" %)Active Device\|(((
42.17	196	(% style="color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
	197	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
6.2	198	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.
	199	)))
16.3	200	\|(% style="width:138px" %)Fast press ACT 5 times.\|(% style="width:100px" %)Deactivate Device\|red led will solid on for 5 seconds. Means PS-LB is in Deep Sleep Mode.
6.2	201
15.2	202	== 1.9 Pin Mapping ==
6.2	203
	204
15.2	205	[[image:1675072568006-274.png]]
6.2	206
	207
16.3	208	== 1.10 BLE connection ==
6.2	209
	210
	211	PS-LB support BLE remote configure.
	212
	213
	214	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:
	215
	216	* Press button to send an uplink
	217	* Press button to active device.
	218	* Device Power on or reset.
	219
	220	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	221
	222
17.2	223	== 1.11 Mechanical ==
6.2	224
	225
	226
	227
17.2	228	[[image:1675143884058-338.png]]
6.2	229
	230
26.2	231	[[image:1675143899218-599.png]]
6.2	232
	233
26.2	234	[[image:1675143909447-639.png]]
6.2	235
26.2	236
	237	= 2. Configure PS-LB to connect to LoRaWAN network =
	238
	239	== 2.1 How it works ==
	240
	241
42.17	242	The PS-LB is configured as (% style="color:#037691" %)LoRaWAN OTAA Class A(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and activate the PS-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
6.2	243
	244
	245
26.2	246	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	247
	248
6.2	249	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.
	250
	251
26.2	252	[[image:1675144005218-297.png]]
6.2	253
	254
	255	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.
	256
	257
42.17	258	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from PS-LB.
6.2	259
	260	Each PS-LB is shipped with a sticker with the default device EUI as below:
	261
26.2	262	[[image:image-20230131134744-2.jpeg]]
6.2	263
	264
	265
	266	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	267
	268
42.17	269	(% style="color:blue" %)Register the device
6.2	270
26.2	271	[[image:1675144099263-405.png]]
6.2	272
	273
42.17	274	(% style="color:blue" %)Add APP EUI and DEV EUI
6.2	275
26.2	276	[[image:1675144117571-832.png]]
6.2	277
	278
42.17	279	(% style="color:blue" %)Add APP EUI in the application
6.2	280
	281
26.2	282	[[image:1675144143021-195.png]]
6.2	283
	284
42.17	285	(% style="color:blue" %)Add APP KEY
6.2	286
26.2	287	[[image:1675144157838-392.png]]
6.2	288
42.17	289	(% style="color:blue" %)Step 2:(%%) Activate on PS-LB
6.2	290
	291
	292	Press the button for 5 seconds to activate the PS-LB.
	293
42.17	294	(% 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	295
	296	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	297
	298
	299
27.2	300	== 2.3 Uplink Payload ==
6.2	301
	302
	303	Uplink payloads have two types:
	304
	305	* Distance Value: Use FPORT=2
	306	* Other control commands: Use other FPORT fields.
	307
	308	The application server should parse the correct value based on FPORT settings.
	309
	310
27.2	311	=== 2.3.1 Device Status, FPORT~=5 ===
6.2	312
	313
	314	Include device configure status. Once PS-LB Joined the network, it will uplink this message to the server.
	315
	316	Users can also use the downlink command(0x26 01) to ask PS-LB to resend this uplink.
	317
	318
27.2	319	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
6.2	320	\|(% colspan="6" %)Device Status (FPORT=5)
27.2	321	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|1\|1\|2
	322	\|(% style="width:103px" %)Value\|(% style="width:72px" %)Sensor Model\|Firmware Version\|Frequency Band\|Sub-band\|BAT
6.2	323
	324	Example parse in TTNv3
	325
27.2	326	[[image:1675144504430-490.png]]
6.2	327
	328
42.17	329	(% style="color:#037691" %)Sensor Model(%%): For PS-LB, this value is 0x16
6.2	330
42.17	331	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
6.2	332
42.17	333	(% style="color:#037691" %)Frequency Band:
6.2	334
	335	*0x01: EU868
	336
	337	*0x02: US915
	338
	339	*0x03: IN865
	340
	341	*0x04: AU915
	342
	343	*0x05: KZ865
	344
	345	*0x06: RU864
	346
	347	*0x07: AS923
	348
	349	*0x08: AS923-1
	350
	351	*0x09: AS923-2
	352
	353	*0x0a: AS923-3
	354
	355	*0x0b: CN470
	356
	357	*0x0c: EU433
	358
	359	*0x0d: KR920
	360
	361	*0x0e: MA869
	362
	363
42.17	364	(% style="color:#037691" %)Sub-Band:
6.2	365
	366	AU915 and US915:value 0x00 ~~ 0x08
	367
	368	CN470: value 0x0B ~~ 0x0C
	369
	370	Other Bands: Always 0x00
	371
	372
42.17	373	(% style="color:#037691" %)Battery Info:
6.2	374
	375	Check the battery voltage.
	376
	377	Ex1: 0x0B45 = 2885mV
	378
	379	Ex2: 0x0B49 = 2889mV
	380
	381
42.11	382	=== 2.3.2 Sensor value, FPORT~=2 ===
6.2	383
	384
	385	Uplink payload includes in total 9 bytes.
	386
	387
27.2	388	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
37.2	389	\|(% style="width:97px" %)(((
	390	Size(bytes)
42.24	391	)))\|(% style="width:48px" %)2\|(% style="width:71px" %)2\|(% style="width:98px" %)2\|(% style="width:73px" %)2\|(% style="width:122px" %)1
	392	\|(% 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	393
37.2	394	[[image:1675144608950-310.png]]
6.2	395
	396
	397
37.2	398	=== 2.3.3 Battery Info ===
6.2	399
	400
	401	Check the battery voltage for PS-LB.
	402
	403	Ex1: 0x0B45 = 2885mV
	404
	405	Ex2: 0x0B49 = 2889mV
	406
	407
37.2	408	=== 2.3.4 Probe Model ===
6.2	409
37.2	410
9.2	411	PS-LB has different kind of probe, 0~~20mA represent the full scale of the measuring range. So a 15mA output means different meaning for different probe.
6.2	412
	413
	414	For example.
	415
37.2	416	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
	417	\|(% style="width:111px" %)Part Number\|(% style="width:158px" %)Probe Used\|0~~20mA scale\|Example: 10mA meaning
	418	\|(% style="width:111px" %)PS-LB-I3\|(% style="width:158px" %)immersion type with 3 meters cable\|0~~3 meters\|1.5 meters pure water
	419	\|(% style="width:111px" %)PS-LB-I5\|(% style="width:158px" %)immersion type with 5 meters cable\|0~~5 meters\|2.5 meters pure water
6.2	420
	421	The probe model field provides the convenient for server to identical how it should parse the 0~~20mA sensor value and get the correct value.
	422
	423
37.2	424	=== 2.3.5 0~~20mA value (IDC_IN) ===
6.2	425
37.2	426
6.2	427	The output value from Pressure Probe, use together with Probe Model to get the pressure value or water level.
	428
42.17	429	(% style="color:#037691" %)Example:
6.2	430
	431	27AE(H) = 10158 (D)/1000 = 10.158mA.
	432
	433
37.2	434	=== 2.3.6 0~~30V value ( pin VDC_IN) ===
6.2	435
37.2	436
6.2	437	Measure the voltage value. The range is 0 to 30V.
	438
42.17	439	(% style="color:#037691" %)Example:
6.2	440
	441	138E(H) = 5006(D)/1000= 5.006V
	442
	443
37.2	444	=== 2.3.7 IN1&IN2&INT pin ===
6.2	445
37.2	446
6.2	447	IN1 and IN2 are used as digital input pins.
	448
42.17	449	(% style="color:#037691" %)Example:
6.2	450
42.17	451	09 (H): (0x09&0x08)>>3=1 IN1 pin is high level.
6.2	452
42.17	453	09 (H): (0x09&0x04)>>2=0 IN2 pin is low level.
6.2	454
	455
42.17	456	This data field shows if this packet is generated by (% style="color:blue" %)Interrupt Pin (%%)or not. [[Click here>>\|\|anchor="H3.2SetInterruptMode"]] for the hardware and software set up. Note: The Internet Pin is a separate pin in the screw terminal.
6.2	457
42.17	458	(% style="color:#037691" %)Example:
6.2	459
42.17	460	09 (H): (0x09&0x02)>>1=1 The level of the interrupt pin.
6.2	461
42.17	462	09 (H): 0x09&0x01=1 0x00: Normal uplink packet.
6.2	463
	464	0x01: Interrupt Uplink Packet.
	465
	466
37.2	467	=== 2.3.8 Decode payload in The Things Network ===
6.2	468
	469
37.2	470	While using TTN network, you can add the payload format to decode the payload.
6.2	471
	472
37.2	473	[[image:1675144839454-913.png]]
6.2	474
	475
37.2	476	PS-LB TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
6.2	477
	478
37.2	479	== 2.4 Uplink Interval ==
6.2	480
	481
37.3	482	The PS-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[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	483
	484
37.2	485	== 2.5 Show Data in DataCake IoT Server ==
6.2	486
	487
	488	[[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:
	489
	490
42.17	491	(% style="color:blue" %)Step 1: (%%)Be sure that your device is programmed and properly connected to the network at this time.
6.2	492
42.17	493	(% 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	494
	495
37.2	496	[[image:1675144951092-237.png]]
6.2	497
	498
37.2	499	[[image:1675144960452-126.png]]
6.2	500
	501
42.17	502	(% style="color:blue" %)Step 3:(%%) Create an account or log in Datacake.
6.2	503
42.18	504	(% style="color:blue" %)Step 4: (%%)Create PS-LB product.
6.2	505
37.2	506	[[image:1675145004465-869.png]]
6.2	507
	508
37.2	509	[[image:1675145018212-853.png]]
6.2	510
	511
	512
	513
37.2	514	[[image:1675145029119-717.png]]
6.2	515
	516
42.17	517	(% style="color:blue" %)Step 5: (%%)add payload decode
6.2	518
37.2	519	[[image:1675145051360-659.png]]
6.2	520
	521
37.2	522	[[image:1675145060812-420.png]]
6.2	523
	524
37.2	525
6.2	526	After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
	527
	528
37.2	529	[[image:1675145081239-376.png]]
6.2	530
	531
37.2	532	== 2.6 Frequency Plans ==
6.2	533
	534
	535	The PS-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
	536
37.3	537	[[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	538
	539
37.4	540	== 2.7 Firmware Change Log ==
6.2	541
	542
	543	Firmware download link:
	544
	545	[[https:~~/~~/www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0>>url:https://www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0]]
	546
	547
	548
37.4	549	= 3. Configure PS-LB via AT Command or LoRaWAN Downlink =
6.2	550
37.4	551
6.2	552	Use can configure PS-LB via AT Command or LoRaWAN Downlink.
	553
42.18	554	* AT Command Connection: See [[FAQ>>\|\|anchor="H7.FAQ"]].
37.4	555	* LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
6.2	556
	557	There are two kinds of commands to configure PS-LB, they are:
	558
42.21	559	* (% style="color:#037691" %)General Commands.
6.2	560
	561	These commands are to configure:
	562
	563	* General system settings like: uplink interval.
	564	* LoRaWAN protocol & radio related command.
	565
	566	They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	567
37.5	568	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
6.2	569
	570
42.21	571	* (% style="color:#037691" %)Commands special design for PS-LB
6.2	572
	573	These commands only valid for PS-LB, as below:
	574
	575
37.5	576	== 3.1 Set Transmit Interval Time ==
6.2	577
37.5	578
6.2	579	Feature: Change LoRaWAN End Node Transmit Interval.
	580
42.21	581	(% style="color:blue" %)AT Command: AT+TDC
6.2	582
37.5	583	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.25	584	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 137px;" %)Function\|=Response
	585	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
6.2	586	30000
	587	OK
	588	the interval is 30000ms = 30s
	589	)))
42.25	590	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
6.2	591	OK
	592	Set transmit interval to 60000ms = 60 seconds
	593	)))
	594
42.21	595	(% style="color:blue" %)Downlink Command: 0x01
6.2	596
	597	Format: Command Code (0x01) followed by 3 bytes time value.
	598
	599	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	600
	601	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	602	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	603
37.5	604	== 3.2 Set Interrupt Mode ==
6.2	605
37.5	606
6.2	607	Feature, Set Interrupt mode for GPIO_EXIT.
	608
42.21	609	(% style="color:blue" %)AT Command: AT+INTMOD
6.2	610
37.5	611	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.25	612	\|=Command Example\|=Function\|=Response
6.2	613	\|AT+INTMOD=?\|Show current interrupt mode\|(((
	614	0
	615	OK
	616	the mode is 0 = No interruption
	617	)))
	618	\|AT+INTMOD=2\|(((
	619	Set Transmit Interval
37.5	620	~1. (Disable Interrupt),
	621	2. (Trigger by rising and falling edge),
	622	3. (Trigger by falling edge)
	623	4. (Trigger by rising edge)
6.2	624	)))\|OK
	625
42.21	626	(% style="color:blue" %)Downlink Command: 0x06
6.2	627
	628	Format: Command Code (0x06) followed by 3 bytes.
	629
	630	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	631
	632	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	633	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	634
37.5	635	== 3.3 Set the output time ==
	636
	637
6.2	638	Feature, Control the output 3V3 , 5V or 12V.
	639
42.21	640	(% style="color:blue" %)AT Command: AT+3V3T
6.2	641
37.5	642	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.25	643	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 236px;" %)Function\|=(% style="width: 117px;" %)Response
37.5	644	\|(% style="width:156px" %)AT+3V3T=?\|(% style="width:236px" %)Show 3V3 open time.\|(% style="width:117px" %)(((
6.2	645	0
	646	OK
	647	)))
37.5	648	\|(% style="width:156px" %)AT+3V3T=0\|(% style="width:236px" %)Normally open 3V3 power supply.\|(% style="width:117px" %)(((
6.2	649	OK
	650	default setting
	651	)))
37.5	652	\|(% style="width:156px" %)AT+3V3T=1000\|(% style="width:236px" %)Close after a delay of 1000 milliseconds.\|(% style="width:117px" %)(((
6.2	653	OK
	654	)))
37.5	655	\|(% style="width:156px" %)AT+3V3T=65535\|(% style="width:236px" %)Normally closed 3V3 power supply.\|(% style="width:117px" %)(((
6.2	656	OK
	657	)))
	658
42.21	659	(% style="color:blue" %)AT Command: AT+5VT
6.2	660
37.5	661	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.25	662	\|=(% style="width: 158px;" %)Command Example\|=(% style="width: 232px;" %)Function\|=(% style="width: 119px;" %)Response
37.5	663	\|(% style="width:158px" %)AT+5VT=?\|(% style="width:232px" %)Show 5V open time.\|(% style="width:119px" %)(((
6.2	664	0
	665	OK
	666	)))
37.5	667	\|(% style="width:158px" %)AT+5VT=0\|(% style="width:232px" %)Normally closed 5V power supply.\|(% style="width:119px" %)(((
6.2	668	OK
	669	default setting
	670	)))
37.5	671	\|(% style="width:158px" %)AT+5VT=1000\|(% style="width:232px" %)Close after a delay of 1000 milliseconds.\|(% style="width:119px" %)(((
6.2	672	OK
	673	)))
37.5	674	\|(% style="width:158px" %)AT+5VT=65535\|(% style="width:232px" %)Normally open 5V power supply.\|(% style="width:119px" %)(((
6.2	675	OK
	676	)))
	677
42.21	678	(% style="color:blue" %)AT Command: AT+12VT
6.2	679
37.5	680	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.25	681	\|=(% style="width: 156px;" %)Command Example\|=(% style="width: 268px;" %)Function\|=Response
37.5	682	\|(% style="width:156px" %)AT+12VT=?\|(% style="width:268px" %)Show 12V open time.\|(((
6.2	683	0
	684	OK
	685	)))
37.5	686	\|(% style="width:156px" %)AT+12VT=0\|(% style="width:268px" %)Normally closed 12V power supply.\|OK
	687	\|(% style="width:156px" %)AT+12VT=500\|(% style="width:268px" %)Close after a delay of 500 milliseconds.\|(((
6.2	688	OK
	689	)))
	690
42.21	691	(% style="color:blue" %)Downlink Command: 0x07
6.2	692
	693	Format: Command Code (0x07) followed by 3 bytes.
	694
	695	The first byte is which power, the second and third bytes are the time to turn on.
	696
	697	* Example 1: Downlink Payload: 070101F4 -> AT+3V3T=500
	698	* Example 2: Downlink Payload: 0701FFFF -> AT+3V3T=65535
	699	* Example 3: Downlink Payload: 070203E8 -> AT+5VT=1000
	700	* Example 4: Downlink Payload: 07020000 -> AT+5VT=0
	701	* Example 5: Downlink Payload: 070301F4 -> AT+12VT=500
	702	* Example 6: Downlink Payload: 07030000 -> AT+12VT=0
	703
37.5	704	== 3.4 Set the Probe Model ==
	705
	706
42.21	707	(% style="color:blue" %)AT Command: AT +PROBE
6.2	708
37.5	709	(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
42.25	710	\|=(% style="width: 157px;" %)Command Example\|=(% style="width: 267px;" %)Function\|=Response
37.5	711	\|(% style="width:157px" %)AT +PROBE =?\|(% style="width:267px" %)Get or Set the probe model.\|(((
6.2	712	0
	713	OK
	714	)))
37.5	715	\|(% style="width:157px" %)AT +PROBE =0003\|(% style="width:267px" %)Set water depth sensor mode, 3m type.\|OK
	716	\|(% style="width:157px" %)AT +PROBE =0101\|(% style="width:267px" %)Set pressure transmitters mode, first type.\|(((
6.2	717	OK
	718	)))
37.5	719	\|(% style="width:157px" %)AT +PROBE =0000\|(% style="width:267px" %)Initial state, no settings.\|(((
6.2	720	OK
	721	)))
	722
42.21	723	(% style="color:blue" %)Downlink Command: 0x08
6.2	724
	725	Format: Command Code (0x08) followed by 2 bytes.
	726
	727	* Example 1: Downlink Payload: 080003 -> AT+PROBE=0003
	728	* Example 2: Downlink Payload: 080101 -> AT+PROBE=0101
	729
37.6	730	= 4. Battery & how to replace =
6.2	731
37.6	732	== 4.1 Battery Type ==
	733
	734
38.2	735	PS-LB is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>https://www.dropbox.com/sh/w9l2oa3ytpculph/AAAPtt-apH4lYfCj-2Y6lHvQa?dl=0]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
6.2	736
	737
	738	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	739
38.2	740	[[image:1675146710956-626.png]]
6.2	741
	742
	743	Minimum Working Voltage for the PS-LB:
	744
	745	PS-LB: 2.45v ~~ 3.6v
	746
	747
38.2	748	== 4.2 Replace Battery ==
6.2	749
38.2	750
6.2	751	Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	752
	753	And make sure the positive and negative pins match.
	754
	755
40.2	756	== 4.3 Power Consumption Analyze ==
6.2	757
	758
	759	Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
	760
	761
	762	Instruction to use as below:
	763
	764
42.21	765	(% style="color:blue" %)Step 1:(%%) Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
6.2	766
40.2	767	[[https:~~/~~/www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0>>https://www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0]]
6.2	768
	769
42.21	770	(% style="color:blue" %)Step 2:(%%) Open it and choose
6.2	771
	772	* Product Model
	773	* Uplink Interval
	774	* Working Mode
	775
	776	And the Life expectation in difference case will be shown on the right.
	777
40.2	778	[[image:1675146895108-304.png]]
6.2	779
	780
	781	The battery related documents as below:
	782
40.2	783	* [[Battery Dimension>>https://www.dropbox.com/s/ox5g9njwjle7aw3/LSN50-Battery-Dimension.pdf?dl=0]],
	784	* [[Lithium-Thionyl Chloride Battery datasheet, Tech Spec>>https://www.dropbox.com/sh/d4oyfnp8o94180o/AABQewCNSh5GPeQH86UxRgQQa?dl=0]]
	785	* [[Lithium-ion Battery-Capacitor datasheet>>https://www.dropbox.com/s/791gjes2lcbfi1p/SPC_1520_datasheet.jpg?dl=0]], [[Tech Spec>>https://www.dropbox.com/s/4pkepr9qqqvtzf2/SPC1520%20Technical%20Specification20171123.pdf?dl=0]]
6.2	786
40.2	787	[[image:image-20230131145708-3.png]]
6.2	788
	789
40.4	790	=== 4.3.1 Battery Note ===
6.2	791
	792
	793	The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
	794
	795
40.4	796	=== 4.3.2 Replace the battery ===
6.2	797
	798
40.4	799	You can change the battery in the PS-LB.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
6.2	800
40.4	801	The default battery pack of PS-LB includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
6.2	802
	803
40.5	804	= 5. Remote Configure device =
6.2	805
42.3	806	== 5.1 Connect via BLE ==
6.2	807
	808
42.2	809	Please see this instruction for how to configure via BLE: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]]
42.3	810
	811
42.2	812	== 5.2 AT Command Set ==
6.2	813
	814
	815
42.2	816	= 6. OTA firmware update =
6.2	817
	818
42.2	819	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	820
	821
42.2	822	= 7. FAQ =
6.2	823
42.3	824	== 7.1 How to use AT Command to access device? ==
6.2	825
	826
42.2	827	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	828
	829
42.2	830	== 7.2 How to update firmware via UART port? ==
6.2	831
	832
42.2	833	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	834
	835
42.2	836	== 7.3 How to change the LoRa Frequency Bands/Region? ==
6.2	837
	838
42.3	839	You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
6.2	840	When downloading the images, choose the required image file for download.
	841
	842
42.2	843	= 8. Order Info =
6.2	844
	845
42.2	846	[[image:image-20230131153105-4.png]]
6.2	847
	848
42.2	849	= 9. Packing Info =
6.2	850
	851
42.21	852	(% style="color:#037691" %)Package Includes:
6.2	853
	854	* PS-LB LoRaWAN Pressure Sensor
	855
42.21	856	(% style="color:#037691" %)Dimension and weight:
6.2	857
	858	* Device Size: cm
	859	* Device Weight: g
	860	* Package Size / pcs : cm
	861	* Weight / pcs : g
	862
42.2	863	= 10. Support =
6.2	864
42.2	865
6.2	866	* 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	867
	868	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
6.2	869
40.4	870

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

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