Skip to Content
Version 42.23 by Xiaoling on 2023/01/31 16:34
Show last authors
1 [[image:image-20230131115217-1.png]]
2
3
4
5 **Table of Contents：**
6
7 {{toc/}}
8
9
10
11
12
13
14 = 1. Introduction =
15
16 == 1.1 What is LoRaWAN Pressure Sensor ==
17
18
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.
20
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.
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
27 PS-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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
31 [[image:1675071321348-194.png]]
32
33
34
35 == 1.2 ​Features ==
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
51 == 1.3 Specification ==
52
53
54 (% style="color:#037691" %)**Micro Controller:**
55
56 * MCU: 48Mhz ARM
57 * Flash: 256KB
58 * RAM: 64KB
59
60 (% style="color:#037691" %)**Common DC Characteristics:**
61
62 * Supply Voltage: 2.5v ~~ 3.6v
63 * Operating Temperature: -40 ~~ 85°C
64
65 (% style="color:#037691" %)**LoRa Spec:**
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
72 (% style="color:#037691" %)**Current Input Measuring :**
73
74 * Range: 0 ~~ 20mA
75 * Accuracy: 0.02mA
76 * Resolution: 0.001mA
77
78 (% style="color:#037691" %)**Voltage Input Measuring:**
79
80 * Range: 0 ~~ 30v
81 * Accuracy: 0.02v
82 * Resolution: 0.001v
83
84 (% style="color:#037691" %)**Battery:**
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
92 (% style="color:#037691" %)**Power Consumption**
93
94 * Sleep Mode: 5uA @ 3.3v
95 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
96
97 == 1.4 Probe Types ==
98
99 === 1.4.1 Thread Installation Type ===
100
101
102 [[image:1675071448299-229.png]]
103
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
114
115 === 1.4.2 Immersion Type ===
116
117
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
131 == 1.5 Probe Dimension ==
132
133
134
135
136 == 1.6 Application and Installation ==
137
138 === 1.6.1 Thread Installation Type ===
139
140
141 (% style="color:blue" %)**Application:**
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
153 [[image:1675071670469-145.png]]
154
155
156 === 1.6.2 Immersion Type ===
157
158
159 (% style="color:blue" %)**Application:**
160
161 Liquid & Water Pressure / Level detect.
162
163 [[image:1675071725288-579.png]]
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
169 [[image:1675071736646-450.png]]
170
171
172 [[image:1675071776102-240.png]]
173
174
175 == 1.7 Sleep mode and working mode ==
176
177
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.
179
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.
181
182
183 == 1.8 Button & LEDs ==
184
185
186 [[image:1675071855856-879.png]]
187
188
189 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
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|(((
192 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
193 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
194 )))
195 |(% style="width:138px" %)Pressing ACT for more than 3s|(% style="width:100px" %)Active Device|(((
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.
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 )))
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.
201
202 == 1.9 Pin Mapping ==
203
204
205 [[image:1675072568006-274.png]]
206
207
208 == 1.10 BLE connection ==
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
223 == 1.11 Mechanical ==
224
225
226
227
228 [[image:1675143884058-338.png]]
229
230
231 [[image:1675143899218-599.png]]
232
233
234 [[image:1675143909447-639.png]]
235
236
237 = 2. Configure PS-LB to connect to LoRaWAN network =
238
239 == 2.1 How it works ==
240
241
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.
243
244
245
246 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
247
248
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
252 [[image:1675144005218-297.png]]
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
258 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from PS-LB.
259
260 Each PS-LB is shipped with a sticker with the default device EUI as below:
261
262 [[image:image-20230131134744-2.jpeg]]
263
264
265
266 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
267
268
269 (% style="color:blue" %)**Register the device**
270
271 [[image:1675144099263-405.png]]
272
273
274 (% style="color:blue" %)**Add APP EUI and DEV EUI**
275
276 [[image:1675144117571-832.png]]
277
278
279 (% style="color:blue" %)**Add APP EUI in the application**
280
281
282 [[image:1675144143021-195.png]]
283
284
285 (% style="color:blue" %)**Add APP KEY**
286
287 [[image:1675144157838-392.png]]
288
289 (% style="color:blue" %)**Step 2:**(%%) Activate on PS-LB
290
291
292 Press the button for 5 seconds to activate the PS-LB.
293
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.
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
300 == 2.3 ​Uplink Payload ==
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
311 === 2.3.1 Device Status, FPORT~=5 ===
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
319 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
320 |(% colspan="6" %)**Device Status (FPORT=5)**
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
323
324 Example parse in TTNv3
325
326 [[image:1675144504430-490.png]]
327
328
329 (% style="color:#037691" %)**Sensor Model**(%%): For PS-LB, this value is 0x16
330
331 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
332
333 (% style="color:#037691" %)**Frequency Band**:
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
364 (% style="color:#037691" %)**Sub-Band**:
365
366 AU915 and US915:value 0x00 ~~ 0x08
367
368 CN470: value 0x0B ~~ 0x0C
369
370 Other Bands: Always 0x00
371
372
373 (% style="color:#037691" %)**Battery Info**:
374
375 Check the battery voltage.
376
377 Ex1: 0x0B45 = 2885mV
378
379 Ex2: 0x0B49 = 2889mV
380
381
382 === 2.3.2 Sensor value, FPORT~=2 ===
383
384
385 Uplink payload includes in total 9 bytes.
386
387
388 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
389 |(% style="width:97px" %)(((
390 **Size(bytes)**
391 )))|(% style="width:48px" %)**2**|(% style="width:58px" %)**2**|**2**|**2**|**1**
392 |(% style="width:97px" %)**Value**|(% style="width:48px" %)[[BAT>>||anchor="H2.3.3BatteryInfo"]]|(% style="width:58px" %)[[Probe Model>>||anchor="H2.3.4ProbeModel"]]|[[0 ~~~~ 20mA value>>||anchor="H2.3.507E20mAvalue28IDC_IN29"]]|[[0 ~~~~ 30v value>>||anchor="H2.3.607E30Vvalue28pinVDC_IN29"]]|[[IN1 &IN2 Interrupt  flag>>||anchor="H2.3.7IN126IN226INTpin"]]
393
394 [[image:1675144608950-310.png]]
395
396
397
398 === 2.3.3 Battery Info ===
399
400
401 Check the battery voltage for PS-LB.
402
403 Ex1: 0x0B45 = 2885mV
404
405 Ex2: 0x0B49 = 2889mV
406
407
408 === 2.3.4 Probe Model ===
409
410
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. 
412
413
414 For example.
415
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
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
424 === 2.3.5 0~~20mA value (IDC_IN) ===
425
426
427 The output value from Pressure Probe, use together with Probe Model to get the pressure value or water level.
428
429 (% style="color:#037691" %)**Example**:
430
431 27AE(H) = 10158 (D)/1000 = 10.158mA.
432
433
434 === 2.3.6 0~~30V value ( pin VDC_IN) ===
435
436
437 Measure the voltage value. The range is 0 to 30V.
438
439 (% style="color:#037691" %)**Example**:
440
441 138E(H) = 5006(D)/1000= 5.006V
442
443
444 === 2.3.7 IN1&IN2&INT pin ===
445
446
447 IN1 and IN2 are used as digital input pins.
448
449 (% style="color:#037691" %)**Example**:
450
451 09 (H): (0x09&0x08)>>3=1    IN1 pin is high level.
452
453 09 (H): (0x09&0x04)>>2=0    IN2 pin is low level.
454
455
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.
457
458 (% style="color:#037691" %)**Example:**
459
460 09 (H): (0x09&0x02)>>1=1    The level of the interrupt pin.
461
462 09 (H): 0x09&0x01=1              0x00: Normal uplink packet.
463
464 0x01: Interrupt Uplink Packet.
465
466
467 === 2.3.8 ​Decode payload in The Things Network ===
468
469
470 While using TTN network, you can add the payload format to decode the payload.
471
472
473 [[image:1675144839454-913.png]]
474
475
476 PS-LB TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
477
478
479 == 2.4 Uplink Interval ==
480
481
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);"]]
483
484
485 == 2.5 Show Data in DataCake IoT Server ==
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
491 (% style="color:blue" %)**Step 1: **(%%)Be sure that your device is programmed and properly connected to the network at this time.
492
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:
494
495
496 [[image:1675144951092-237.png]]
497
498
499 [[image:1675144960452-126.png]]
500
501
502 (% style="color:blue" %)**Step 3:**(%%) Create an account or log in Datacake.
503
504 (% style="color:blue" %)**Step 4:** (%%)Create PS-LB product.
505
506 [[image:1675145004465-869.png]]
507
508
509 [[image:1675145018212-853.png]]
510
511
512
513
514 [[image:1675145029119-717.png]]
515
516
517 (% style="color:blue" %)**Step 5: **(%%)add payload decode
518
519 [[image:1675145051360-659.png]]
520
521
522 [[image:1675145060812-420.png]]
523
524
525
526 After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
527
528
529 [[image:1675145081239-376.png]]
530
531
532 == 2.6 Frequency Plans ==
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
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/]]
538
539
540 == 2.7 ​Firmware Change Log ==
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
549 = 3. Configure PS-LB via AT Command or LoRaWAN Downlink =
550
551
552 Use can configure PS-LB via AT Command or LoRaWAN Downlink.
553
554 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
555 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
556
557 There are two kinds of commands to configure PS-LB, they are:
558
559 * (% style="color:#037691" %)**General Commands**.
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
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/]]
569
570
571 * (% style="color:#037691" %)**Commands special design for PS-LB**
572
573 These commands only valid for PS-LB, as below:
574
575
576 == 3.1 Set Transmit Interval Time ==
577
578
579 Feature: Change LoRaWAN End Node Transmit Interval.
580
581 (% style="color:blue" %)**AT Command: AT+TDC**
582
583 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
584 |**Command Example**|**Function**|**Response**
585 |AT+TDC=?|Show current transmit Interval|(((
586 30000
587
588 OK
589
590 the interval is 30000ms = 30s
591 )))
592 |AT+TDC=60000|Set Transmit Interval|(((
593 OK
594
595 Set transmit interval to 60000ms = 60 seconds
596 )))
597
598 (% style="color:blue" %)**Downlink Command: 0x01**
599
600 Format: Command Code (0x01) followed by 3 bytes time value.
601
602 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
603
604 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
605 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
606
607
608 == 3.2 Set Interrupt Mode ==
609
610
611 Feature, Set Interrupt mode for GPIO_EXIT.
612
613 (% style="color:blue" %)**AT Command: AT+INTMOD**
614
615 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
616 |**Command Example**|**Function**|**Response**
617 |AT+INTMOD=?|Show current interrupt mode|(((
618 0
619
620 OK
621
622 the mode is 0 = No interruption
623 )))
624 |AT+INTMOD=2|(((
625 Set Transmit Interval
626
627 ~1. (Disable Interrupt),
628
629 2. (Trigger by rising and falling edge),
630
631 3. (Trigger by falling edge)
632
633 4. (Trigger by rising edge)
634 )))|OK
635
636 (% style="color:blue" %)**Downlink Command: 0x06**
637
638 Format: Command Code (0x06) followed by 3 bytes.
639
640 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
641
642 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
643 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
644
645 == 3.3 Set the output time ==
646
647
648 Feature, Control the output 3V3 , 5V or 12V.
649
650 (% style="color:blue" %)**AT Command: AT+3V3T**
651
652 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
653 |(% style="width:156px" %)**Command Example**|(% style="width:236px" %)**Function**|(% style="width:117px" %)**Response**
654 |(% style="width:156px" %)AT+3V3T=?|(% style="width:236px" %)Show 3V3 open time.|(% style="width:117px" %)(((
655 0
656
657 OK
658 )))
659 |(% style="width:156px" %)AT+3V3T=0|(% style="width:236px" %)Normally open 3V3 power supply.|(% style="width:117px" %)(((
660 OK
661
662 default setting
663 )))
664 |(% style="width:156px" %)AT+3V3T=1000|(% style="width:236px" %)Close after a delay of 1000 milliseconds.|(% style="width:117px" %)(((
665 OK
666
667
668 )))
669 |(% style="width:156px" %)AT+3V3T=65535|(% style="width:236px" %)Normally closed 3V3 power supply.|(% style="width:117px" %)(((
670 OK
671
672
673 )))
674
675 (% style="color:blue" %)**AT Command: AT+5VT**
676
677 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
678 |(% style="width:158px" %)**Command Example**|(% style="width:232px" %)**Function**|(% style="width:119px" %)**Response**
679 |(% style="width:158px" %)AT+5VT=?|(% style="width:232px" %)Show 5V open time.|(% style="width:119px" %)(((
680 0
681
682 OK
683 )))
684 |(% style="width:158px" %)AT+5VT=0|(% style="width:232px" %)Normally closed 5V power supply.|(% style="width:119px" %)(((
685 OK
686
687 default setting
688 )))
689 |(% style="width:158px" %)AT+5VT=1000|(% style="width:232px" %)Close after a delay of 1000 milliseconds.|(% style="width:119px" %)(((
690 OK
691
692
693 )))
694 |(% style="width:158px" %)AT+5VT=65535|(% style="width:232px" %)Normally open 5V power supply.|(% style="width:119px" %)(((
695 OK
696
697
698 )))
699
700 (% style="color:blue" %)**AT Command: AT+12VT**
701
702 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
703 |(% style="width:156px" %)**Command Example**|(% style="width:268px" %)**Function**|**Response**
704 |(% style="width:156px" %)AT+12VT=?|(% style="width:268px" %)Show 12V open time.|(((
705 0
706
707 OK
708 )))
709 |(% style="width:156px" %)AT+12VT=0|(% style="width:268px" %)Normally closed 12V power supply.|OK
710 |(% style="width:156px" %)AT+12VT=500|(% style="width:268px" %)Close after a delay of 500 milliseconds.|(((
711 OK
712
713
714 )))
715
716 (% style="color:blue" %)**Downlink Command: 0x07**
717
718 Format: Command Code (0x07) followed by 3 bytes.
719
720 The first byte is which power, the second and third bytes are the time to turn on.
721
722 * Example 1: Downlink Payload: 070101F4  -> AT+3V3T=500
723 * Example 2: Downlink Payload: 0701FFFF   -> AT+3V3T=65535
724 * Example 3: Downlink Payload: 070203E8  -> AT+5VT=1000
725 * Example 4: Downlink Payload: 07020000  -> AT+5VT=0
726 * Example 5: Downlink Payload: 070301F4  -> AT+12VT=500
727 * Example 6: Downlink Payload: 07030000  -> AT+12VT=0
728
729 == 3.4 Set the Probe Model ==
730
731
732 (% style="color:blue" %)**AT Command: AT** **+PROBE**
733
734 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
735 |(% style="width:157px" %)**Command Example**|(% style="width:267px" %)**Function**|**Response**
736 |(% style="width:157px" %)AT +PROBE =?|(% style="width:267px" %)Get or Set the probe model.|(((
737 0
738
739 OK
740 )))
741 |(% style="width:157px" %)AT +PROBE =0003|(% style="width:267px" %)Set water depth sensor mode, 3m type.|OK
742 |(% style="width:157px" %)AT +PROBE =0101|(% style="width:267px" %)Set pressure transmitters mode, first type.|(((
743 OK
744
745
746 )))
747 |(% style="width:157px" %)AT +PROBE =0000|(% style="width:267px" %)Initial state, no settings.|(((
748 OK
749
750
751 )))
752
753 (% style="color:blue" %)**Downlink Command: 0x08**
754
755 Format: Command Code (0x08) followed by 2 bytes.
756
757 * Example 1: Downlink Payload: 080003  -> AT+PROBE=0003
758 * Example 2: Downlink Payload: 080101  -> AT+PROBE=0101
759
760 = 4. Battery & how to replace =
761
762 == 4.1 Battery Type ==
763
764
765 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.
766
767
768 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
769
770 [[image:1675146710956-626.png]]
771
772
773 Minimum Working Voltage for the PS-LB:
774
775 PS-LB:  2.45v ~~ 3.6v
776
777
778 == 4.2 Replace Battery ==
779
780
781 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
782
783 And make sure the positive and negative pins match.
784
785
786 == 4.3 Power Consumption Analyze ==
787
788
789 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.
790
791
792 Instruction to use as below:
793
794
795 (% style="color:blue" %)**Step 1:**(%%) Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
796
797 [[https:~~/~~/www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0>>https://www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0]]
798
799
800 (% style="color:blue" %)**Step 2:**(%%) Open it and choose
801
802 * Product Model
803 * Uplink Interval
804 * Working Mode
805
806 And the Life expectation in difference case will be shown on the right.
807
808 [[image:1675146895108-304.png]]
809
810
811 The battery related documents as below:
812
813 * [[Battery Dimension>>https://www.dropbox.com/s/ox5g9njwjle7aw3/LSN50-Battery-Dimension.pdf?dl=0]],
814 * [[Lithium-Thionyl Chloride Battery datasheet, Tech Spec>>https://www.dropbox.com/sh/d4oyfnp8o94180o/AABQewCNSh5GPeQH86UxRgQQa?dl=0]]
815 * [[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]]
816
817 [[image:image-20230131145708-3.png]]
818
819
820 === 4.3.1 ​Battery Note ===
821
822
823 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.
824
825
826 === 4.3.2 Replace the battery ===
827
828
829 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.
830
831 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)
832
833
834 = 5. Remote Configure device =
835
836 == 5.1 Connect via BLE ==
837
838
839 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/]]
840
841
842 == 5.2 AT Command Set ==
843
844
845
846 = 6. OTA firmware update =
847
848
849 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/]]
850
851
852 = 7. FAQ =
853
854 == 7.1 How to use AT Command to access device? ==
855
856
857 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]]
858
859
860 == 7.2 How to update firmware via UART port? ==
861
862
863 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]]
864
865
866 == 7.3 How to change the LoRa Frequency Bands/Region? ==
867
868
869 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
870 When downloading the images, choose the required image file for download. ​
871
872
873 = 8. Order Info =
874
875
876 [[image:image-20230131153105-4.png]]
877
878
879 = 9. ​Packing Info =
880
881
882 (% style="color:#037691" %)**Package Includes**:
883
884 * PS-LB LoRaWAN Pressure Sensor
885
886 (% style="color:#037691" %)**Dimension and weight**:
887
888 * Device Size: cm
889 * Device Weight: g
890 * Package Size / pcs : cm
891 * Weight / pcs : g
892
893 = 10. Support =
894
895
896 * 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.
897
898 * 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]]
899
900