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Version 42.21 by Xiaoling on 2023/01/31 16:19
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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:138px" %)**Behavior on ACT**|(% style="width:100px" %)**Function**|**Action**
191 |(% style="width:138px" %)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
194 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
195 )))
196 |(% style="width:138px" %)Pressing ACT for more than 3s|(% style="width:100px" %)Active Device|(((
197 (% 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.
198
199 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
200
201 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.
202 )))
203 |(% 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.
204
205 == 1.9 Pin Mapping ==
206
207
208 [[image:1675072568006-274.png]]
209
210
211 == 1.10 BLE connection ==
212
213
214 PS-LB support BLE remote configure.
215
216
217 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:
218
219 * Press button to send an uplink
220 * Press button to active device.
221 * Device Power on or reset.
222
223 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
224
225
226 == 1.11 Mechanical ==
227
228
229
230
231 [[image:1675143884058-338.png]]
232
233
234 [[image:1675143899218-599.png]]
235
236
237 [[image:1675143909447-639.png]]
238
239
240 = 2. Configure PS-LB to connect to LoRaWAN network =
241
242 == 2.1 How it works ==
243
244
245 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.
246
247
248
249 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
250
251
252 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.
253
254
255 [[image:1675144005218-297.png]]
256
257
258 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.
259
260
261 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from PS-LB.
262
263 Each PS-LB is shipped with a sticker with the default device EUI as below:
264
265 [[image:image-20230131134744-2.jpeg]]
266
267
268
269 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
270
271
272 (% style="color:blue" %)**Register the device**
273
274 [[image:1675144099263-405.png]]
275
276
277 (% style="color:blue" %)**Add APP EUI and DEV EUI**
278
279 [[image:1675144117571-832.png]]
280
281
282 (% style="color:blue" %)**Add APP EUI in the application**
283
284
285 [[image:1675144143021-195.png]]
286
287
288 (% style="color:blue" %)**Add APP KEY**
289
290 [[image:1675144157838-392.png]]
291
292 (% style="color:blue" %)**Step 2:**(%%) Activate on PS-LB
293
294
295 Press the button for 5 seconds to activate the PS-LB.
296
297 (% 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.
298
299 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
300
301
302
303 == 2.3 ​Uplink Payload ==
304
305
306 Uplink payloads have two types:
307
308 * Distance Value: Use FPORT=2
309 * Other control commands: Use other FPORT fields.
310
311 The application server should parse the correct value based on FPORT settings.
312
313
314 === 2.3.1 Device Status, FPORT~=5 ===
315
316
317 Include device configure status. Once PS-LB Joined the network, it will uplink this message to the server.
318
319 Users can also use the downlink command(0x26 01) to ask PS-LB to resend this uplink.
320
321
322 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
323 |(% colspan="6" %)**Device Status (FPORT=5)**
324 |(% style="width:103px" %)**Size (bytes)**|(% style="width:72px" %)**1**|**2**|**1**|**1**|**2**
325 |(% style="width:103px" %)**Value**|(% style="width:72px" %)Sensor Model|Firmware Version|Frequency Band|Sub-band|BAT
326
327 Example parse in TTNv3
328
329 [[image:1675144504430-490.png]]
330
331
332 (% style="color:#037691" %)**Sensor Model**(%%): For PS-LB, this value is 0x16
333
334 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
335
336 (% style="color:#037691" %)**Frequency Band**:
337
338 *0x01: EU868
339
340 *0x02: US915
341
342 *0x03: IN865
343
344 *0x04: AU915
345
346 *0x05: KZ865
347
348 *0x06: RU864
349
350 *0x07: AS923
351
352 *0x08: AS923-1
353
354 *0x09: AS923-2
355
356 *0x0a: AS923-3
357
358 *0x0b: CN470
359
360 *0x0c: EU433
361
362 *0x0d: KR920
363
364 *0x0e: MA869
365
366
367 (% style="color:#037691" %)**Sub-Band**:
368
369 AU915 and US915:value 0x00 ~~ 0x08
370
371 CN470: value 0x0B ~~ 0x0C
372
373 Other Bands: Always 0x00
374
375
376 (% style="color:#037691" %)**Battery Info**:
377
378 Check the battery voltage.
379
380 Ex1: 0x0B45 = 2885mV
381
382 Ex2: 0x0B49 = 2889mV
383
384
385 === 2.3.2 Sensor value, FPORT~=2 ===
386
387
388 Uplink payload includes in total 9 bytes.
389
390
391 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
392 |(% style="width:97px" %)(((
393 **Size(bytes)**
394 )))|(% style="width:48px" %)**2**|(% style="width:58px" %)**2**|**2**|**2**|**1**
395 |(% 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"]]
396
397 [[image:1675144608950-310.png]]
398
399
400
401 === 2.3.3 Battery Info ===
402
403
404 Check the battery voltage for PS-LB.
405
406 Ex1: 0x0B45 = 2885mV
407
408 Ex2: 0x0B49 = 2889mV
409
410
411 === 2.3.4 Probe Model ===
412
413
414 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. 
415
416
417 For example.
418
419 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
420 |(% style="width:111px" %)**Part Number**|(% style="width:158px" %)**Probe Used**|**0~~20mA scale**|**Example: 10mA meaning**
421 |(% style="width:111px" %)PS-LB-I3|(% style="width:158px" %)immersion type with 3 meters cable|0~~3 meters|1.5 meters pure water
422 |(% style="width:111px" %)PS-LB-I5|(% style="width:158px" %)immersion type with 5 meters cable|0~~5 meters|2.5 meters pure water
423
424 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.
425
426
427 === 2.3.5 0~~20mA value (IDC_IN) ===
428
429
430 The output value from Pressure Probe, use together with Probe Model to get the pressure value or water level.
431
432 (% style="color:#037691" %)**Example**:
433
434 27AE(H) = 10158 (D)/1000 = 10.158mA.
435
436
437 === 2.3.6 0~~30V value ( pin VDC_IN) ===
438
439
440 Measure the voltage value. The range is 0 to 30V.
441
442 (% style="color:#037691" %)**Example**:
443
444 138E(H) = 5006(D)/1000= 5.006V
445
446
447 === 2.3.7 IN1&IN2&INT pin ===
448
449
450 IN1 and IN2 are used as digital input pins.
451
452 (% style="color:#037691" %)**Example**:
453
454 09 (H): (0x09&0x08)>>3=1    IN1 pin is high level.
455
456 09 (H): (0x09&0x04)>>2=0    IN2 pin is low level.
457
458
459 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.
460
461 (% style="color:#037691" %)**Example:**
462
463 09 (H): (0x09&0x02)>>1=1    The level of the interrupt pin.
464
465 09 (H): 0x09&0x01=1              0x00: Normal uplink packet.
466
467 0x01: Interrupt Uplink Packet.
468
469
470 === 2.3.8 ​Decode payload in The Things Network ===
471
472
473 While using TTN network, you can add the payload format to decode the payload.
474
475
476 [[image:1675144839454-913.png]]
477
478
479 PS-LB TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
480
481
482 == 2.4 Uplink Interval ==
483
484
485 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);"]]
486
487
488 == 2.5 Show Data in DataCake IoT Server ==
489
490
491 [[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:
492
493
494 (% style="color:blue" %)**Step 1: **(%%)Be sure that your device is programmed and properly connected to the network at this time.
495
496 (% 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:
497
498
499 [[image:1675144951092-237.png]]
500
501
502 [[image:1675144960452-126.png]]
503
504
505 (% style="color:blue" %)**Step 3:**(%%) Create an account or log in Datacake.
506
507 (% style="color:blue" %)**Step 4:** (%%)Create PS-LB product.
508
509 [[image:1675145004465-869.png]]
510
511
512 [[image:1675145018212-853.png]]
513
514
515
516
517 [[image:1675145029119-717.png]]
518
519
520 (% style="color:blue" %)**Step 5: **(%%)add payload decode
521
522 [[image:1675145051360-659.png]]
523
524
525 [[image:1675145060812-420.png]]
526
527
528
529 After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
530
531
532 [[image:1675145081239-376.png]]
533
534
535 == 2.6 Frequency Plans ==
536
537
538 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.
539
540 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
541
542
543 == 2.7 ​Firmware Change Log ==
544
545
546 **Firmware download link:**
547
548 [[https:~~/~~/www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0>>url:https://www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0]]
549
550
551
552 = 3. Configure PS-LB via AT Command or LoRaWAN Downlink =
553
554
555 Use can configure PS-LB via AT Command or LoRaWAN Downlink.
556
557 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
558 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
559
560 There are two kinds of commands to configure PS-LB, they are:
561
562 * (% style="color:#037691" %)**General Commands**.
563
564 These commands are to configure:
565
566 * General system settings like: uplink interval.
567 * LoRaWAN protocol & radio related command.
568
569 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
570
571 [[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/]]
572
573
574 * (% style="color:#037691" %)**Commands special design for PS-LB**
575
576 These commands only valid for PS-LB, as below:
577
578
579 == 3.1 Set Transmit Interval Time ==
580
581
582 Feature: Change LoRaWAN End Node Transmit Interval.
583
584 (% style="color:blue" %)**AT Command: AT+TDC**
585
586 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
587 |**Command Example**|**Function**|**Response**
588 |AT+TDC=?|Show current transmit Interval|(((
589 30000
590
591 OK
592
593 the interval is 30000ms = 30s
594 )))
595 |AT+TDC=60000|Set Transmit Interval|(((
596 OK
597
598 Set transmit interval to 60000ms = 60 seconds
599 )))
600
601 (% style="color:blue" %)**Downlink Command: 0x01**
602
603 Format: Command Code (0x01) followed by 3 bytes time value.
604
605 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
606
607 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
608 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
609
610
611 == 3.2 Set Interrupt Mode ==
612
613
614 Feature, Set Interrupt mode for GPIO_EXIT.
615
616 (% style="color:blue" %)**AT Command: AT+INTMOD**
617
618 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
619 |**Command Example**|**Function**|**Response**
620 |AT+INTMOD=?|Show current interrupt mode|(((
621 0
622
623 OK
624
625 the mode is 0 = No interruption
626 )))
627 |AT+INTMOD=2|(((
628 Set Transmit Interval
629
630 ~1. (Disable Interrupt),
631
632 2. (Trigger by rising and falling edge),
633
634 3. (Trigger by falling edge)
635
636 4. (Trigger by rising edge)
637 )))|OK
638
639 (% style="color:blue" %)**Downlink Command: 0x06**
640
641 Format: Command Code (0x06) followed by 3 bytes.
642
643 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
644
645 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
646 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
647
648 == 3.3 Set the output time ==
649
650
651 Feature, Control the output 3V3 , 5V or 12V.
652
653 (% style="color:blue" %)**AT Command: AT+3V3T**
654
655 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
656 |(% style="width:156px" %)**Command Example**|(% style="width:236px" %)**Function**|(% style="width:117px" %)**Response**
657 |(% style="width:156px" %)AT+3V3T=?|(% style="width:236px" %)Show 3V3 open time.|(% style="width:117px" %)(((
658 0
659
660 OK
661 )))
662 |(% style="width:156px" %)AT+3V3T=0|(% style="width:236px" %)Normally open 3V3 power supply.|(% style="width:117px" %)(((
663 OK
664
665 default setting
666 )))
667 |(% style="width:156px" %)AT+3V3T=1000|(% style="width:236px" %)Close after a delay of 1000 milliseconds.|(% style="width:117px" %)(((
668 OK
669
670
671 )))
672 |(% style="width:156px" %)AT+3V3T=65535|(% style="width:236px" %)Normally closed 3V3 power supply.|(% style="width:117px" %)(((
673 OK
674
675
676 )))
677
678 (% style="color:blue" %)**AT Command: AT+5VT**
679
680 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
681 |(% style="width:158px" %)**Command Example**|(% style="width:232px" %)**Function**|(% style="width:119px" %)**Response**
682 |(% style="width:158px" %)AT+5VT=?|(% style="width:232px" %)Show 5V open time.|(% style="width:119px" %)(((
683 0
684
685 OK
686 )))
687 |(% style="width:158px" %)AT+5VT=0|(% style="width:232px" %)Normally closed 5V power supply.|(% style="width:119px" %)(((
688 OK
689
690 default setting
691 )))
692 |(% style="width:158px" %)AT+5VT=1000|(% style="width:232px" %)Close after a delay of 1000 milliseconds.|(% style="width:119px" %)(((
693 OK
694
695
696 )))
697 |(% style="width:158px" %)AT+5VT=65535|(% style="width:232px" %)Normally open 5V power supply.|(% style="width:119px" %)(((
698 OK
699
700
701 )))
702
703 (% style="color:blue" %)**AT Command: AT+12VT**
704
705 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
706 |(% style="width:156px" %)**Command Example**|(% style="width:268px" %)**Function**|**Response**
707 |(% style="width:156px" %)AT+12VT=?|(% style="width:268px" %)Show 12V open time.|(((
708 0
709
710 OK
711 )))
712 |(% style="width:156px" %)AT+12VT=0|(% style="width:268px" %)Normally closed 12V power supply.|OK
713 |(% style="width:156px" %)AT+12VT=500|(% style="width:268px" %)Close after a delay of 500 milliseconds.|(((
714 OK
715
716
717 )))
718
719 (% style="color:blue" %)**Downlink Command: 0x07**
720
721 Format: Command Code (0x07) followed by 3 bytes.
722
723 The first byte is which power, the second and third bytes are the time to turn on.
724
725 * Example 1: Downlink Payload: 070101F4  -> AT+3V3T=500
726 * Example 2: Downlink Payload: 0701FFFF   -> AT+3V3T=65535
727 * Example 3: Downlink Payload: 070203E8  -> AT+5VT=1000
728 * Example 4: Downlink Payload: 07020000  -> AT+5VT=0
729 * Example 5: Downlink Payload: 070301F4  -> AT+12VT=500
730 * Example 6: Downlink Payload: 07030000  -> AT+12VT=0
731
732 == 3.4 Set the Probe Model ==
733
734
735 (% style="color:blue" %)**AT Command: AT** **+PROBE**
736
737 (% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %)
738 |(% style="width:157px" %)**Command Example**|(% style="width:267px" %)**Function**|**Response**
739 |(% style="width:157px" %)AT +PROBE =?|(% style="width:267px" %)Get or Set the probe model.|(((
740 0
741
742 OK
743 )))
744 |(% style="width:157px" %)AT +PROBE =0003|(% style="width:267px" %)Set water depth sensor mode, 3m type.|OK
745 |(% style="width:157px" %)AT +PROBE =0101|(% style="width:267px" %)Set pressure transmitters mode, first type.|(((
746 OK
747
748
749 )))
750 |(% style="width:157px" %)AT +PROBE =0000|(% style="width:267px" %)Initial state, no settings.|(((
751 OK
752
753
754 )))
755
756 (% style="color:blue" %)**Downlink Command: 0x08**
757
758 Format: Command Code (0x08) followed by 2 bytes.
759
760 * Example 1: Downlink Payload: 080003  -> AT+PROBE=0003
761 * Example 2: Downlink Payload: 080101  -> AT+PROBE=0101
762
763 = 4. Battery & how to replace =
764
765 == 4.1 Battery Type ==
766
767
768 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.
769
770
771 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
772
773 [[image:1675146710956-626.png]]
774
775
776 Minimum Working Voltage for the PS-LB:
777
778 PS-LB:  2.45v ~~ 3.6v
779
780
781 == 4.2 Replace Battery ==
782
783
784 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
785
786 And make sure the positive and negative pins match.
787
788
789 == 4.3 Power Consumption Analyze ==
790
791
792 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.
793
794
795 Instruction to use as below:
796
797
798 (% style="color:blue" %)**Step 1:**(%%) Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
799
800 [[https:~~/~~/www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0>>https://www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0]]
801
802
803 (% style="color:blue" %)**Step 2:**(%%) Open it and choose
804
805 * Product Model
806 * Uplink Interval
807 * Working Mode
808
809 And the Life expectation in difference case will be shown on the right.
810
811 [[image:1675146895108-304.png]]
812
813
814 The battery related documents as below:
815
816 * [[Battery Dimension>>https://www.dropbox.com/s/ox5g9njwjle7aw3/LSN50-Battery-Dimension.pdf?dl=0]],
817 * [[Lithium-Thionyl Chloride Battery datasheet, Tech Spec>>https://www.dropbox.com/sh/d4oyfnp8o94180o/AABQewCNSh5GPeQH86UxRgQQa?dl=0]]
818 * [[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]]
819
820 [[image:image-20230131145708-3.png]]
821
822
823 === 4.3.1 ​Battery Note ===
824
825
826 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.
827
828
829 === 4.3.2 Replace the battery ===
830
831
832 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.
833
834 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)
835
836
837 = 5. Remote Configure device =
838
839 == 5.1 Connect via BLE ==
840
841
842 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/]]
843
844
845 == 5.2 AT Command Set ==
846
847
848
849 = 6. OTA firmware update =
850
851
852 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/]]
853
854
855 = 7. FAQ =
856
857 == 7.1 How to use AT Command to access device? ==
858
859
860 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]]
861
862
863 == 7.2 How to update firmware via UART port? ==
864
865
866 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]]
867
868
869 == 7.3 How to change the LoRa Frequency Bands/Region? ==
870
871
872 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
873 When downloading the images, choose the required image file for download. ​
874
875
876 = 8. Order Info =
877
878
879 [[image:image-20230131153105-4.png]]
880
881
882 = 9. ​Packing Info =
883
884
885 (% style="color:#037691" %)**Package Includes**:
886
887 * PS-LB LoRaWAN Pressure Sensor
888
889 (% style="color:#037691" %)**Dimension and weight**:
890
891 * Device Size: cm
892 * Device Weight: g
893 * Package Size / pcs : cm
894 * Weight / pcs : g
895
896 = 10. Support =
897
898
899 * 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.
900
901 * 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]]
902
903