Last modified by Xiaoling on 2024/01/16 10:20
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7
8 **Table of Contents:**
9
10 {{toc/}}
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12
13
14
15
16
17 = 1. Introduction =
18
19 == 1.1 What is LoRaWAN UVC Radiation Sensor ==
20
21
22 (((
23 The Dragino UV254-LB is a (% style="color:blue" %)**LoRaWAN UVC Radiation Sensor**(%%) for Internet of Things solution. UV254-LB is an indoor UVC sensor specially designed for (% style="color:blue" %)**detecting the intensity of ultraviolet lamps**(%%). UV254-LB will convert the UVC Intensity to LoRaWAN wireless data and send to IoT platform via LoRaWAN gateway.
24
25 UVC is harmful to human health, and UVC lamp will lose efficacy after long time use. With UV254-LB, administrator can know if the UVC lamp is operate efficacy and make sure it won't work in unexpected time.
26
27 The LoRa wireless technology used in UV254-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.
28 )))
29
30 (((
31 UV254-LB supports BLE configure and wireless OTA update which make user easy to use.
32 )))
33
34 (((
35 UV254-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
36 )))
37
38 (((
39 Each UV254-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.
40 )))
41
42 [[image:1686041140110-589.png]]
43
44
45 == 1.2 ​Features ==
46
47
48 * LoRaWAN 1.0.3 Class A
49 * Ultra-low power consumption
50 * Detect UVC lamp working status
51 * Detect UVC lamp working efficiency
52 * Peak response spectrum 254nm
53 * Monitor Battery Level
54 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
55 * Support Bluetooth v5.1 and LoRaWAN remote configure
56 * Support wireless OTA update firmware
57 * Uplink on periodically
58 * Downlink to change configure
59 * 8500mAh Battery for long term use
60
61 == 1.3 Specification ==
62
63
64 (% style="color:#037691" %)**Common DC Characteristics:**
65
66 * Supply Voltage: 2.5v ~~ 3.6v
67 * Operating Temperature: -40 ~~ 85°C
68
69 (% style="color:#037691" %)**Probe Spec :**
70
71 * Measuring range 0～5mw/cm ²
72 * Response spectrum range 254nm±5nm
73 * Peak response spectrum 254nm
74
75 (% style="color:#037691" %)**LoRa Spec:**
76
77 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz,Band 2 (LF): 410 ~~ 528 Mhz
78 * Max +22 dBm constant RF output vs.
79 * RX sensitivity: down to -139 dBm.
80 * Excellent blocking immunity
81
82 (% style="color:#037691" %)**Battery:**
83
84 * Li/SOCI2 un-chargeable battery
85 * Capacity: 8500mAh
86 * Self-Discharge: <1% / Year @ 25°C
87 * Max continuously current: 130mA
88 * Max boost current: 2A, 1 second
89
90 (% style="color:#037691" %)**Power Consumption**
91
92 * Sleep Mode: 5uA @ 3.3v
93 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
94
95 == 1.4 Use Environment ==
96
97
98 Detect UV Lamps Status in difference environment as below
99
100 [[image:image-20230606165517-3.png]]
101
102
103 == 1.5 Sleep mode and working mode ==
104
105
106 (% 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.
107
108 (% 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.
109
110
111 == 1.6 Button & LEDs ==
112
113
114 [[image:1675071855856-879.png]]
115
116
117 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
118 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
119 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Send an uplink|(% style="background-color:#f2f2f2; width:225px" %)(((
120 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
121 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
122 )))
123 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
124 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
125 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
126 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.
127 )))
128 |(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means UV254-LB is in Deep Sleep Mode.
129
130 == 1.7 BLE connection ==
131
132
133 UV254-LB support BLE remote configure.
134
135 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:
136
137 * Press button to send an uplink
138 * Press button to active device.
139 * Device Power on or reset.
140
141 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
142
143
144 == 1.8 Mechanical ==
145
146
147 [[image:1675143884058-338.png]]
148
149
150 [[image:1675143899218-599.png]]
151
152
153 [[image:1675143909447-639.png]]
154
155
156 = 2. Configure UV254-LB to connect to LoRaWAN network =
157
158 == 2.1 How it works ==
159
160
161 The UV254-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 UV254-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
162
163
164 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
165
166
167 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.
168
169 [[image:1686043201033-441.png]]
170
171
172 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.
173
174
175 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from UV254-LB.
176
177 Each UV254-LB is shipped with a sticker with the default device EUI as below:
178
179 [[image:image-20230426085320-1.png||height="234" width="504"]]
180
181
182 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
183
184
185 (% style="color:blue" %)**Register the device**
186
187 [[image:1675144099263-405.png]]
188
189
190 (% style="color:blue" %)**Add APP EUI and DEV EUI**
191
192 [[image:1675144117571-832.png]]
193
194
195 (% style="color:blue" %)**Add APP EUI in the application**
196
197
198 [[image:1675144143021-195.png]]
199
200
201 (% style="color:blue" %)**Add APP KEY**
202
203 [[image:1675144157838-392.png]]
204
205 (% style="color:blue" %)**Step 2:**(%%) Activate on UV254-LB
206
207
208 Press the button for 5 seconds to activate the UV254-LB.
209
210 (% 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.
211
212 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
213
214
215 == 2.3 ​Uplink Payload ==
216
217 === 2.3.1 Device Status, FPORT~=5 ===
218
219
220 Include device configure status. Once UV254-LB Joined the network, it will uplink this message to the server.
221
222 Users can also use the downlink command(0x26 01) to ask UV254-LB to resend this uplink.
223
224 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
225 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
226 |(% style="background-color:#f2f2f2; width:103px" %)**Size (bytes)**|(% style="background-color:#f2f2f2; width:72px" %)**1**|(% style="background-color:#f2f2f2" %)**2**|(% style="background-color:#f2f2f2; width:91px" %)**1**|(% style="background-color:#f2f2f2; width:86px" %)**1**|(% style="background-color:#f2f2f2; width:44px" %)**2**
227 |(% style="background-color:#f2f2f2; width:103px" %)Value|(% style="background-color:#f2f2f2; width:72px" %)Sensor Model|(% style="background-color:#f2f2f2" %)Firmware Version|(% style="background-color:#f2f2f2; width:91px" %)Frequency Band|(% style="background-color:#f2f2f2; width:86px" %)Sub-band|(% style="background-color:#f2f2f2; width:44px" %)BAT
228
229 Example parse in TTNv3
230
231 [[image:1675144504430-490.png]]
232
233
234 (% style="color:#037691" %)**Sensor Model**(%%): For UV254-LB, this value is 0x16
235
236 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
237
238 (% style="color:#037691" %)**Frequency Band**:
239
240 0x01: EU868
241
242 0x02: US915
243
244 0x03: IN865
245
246 0x04: AU915
247
248 0x05: KZ865
249
250 0x06: RU864
251
252 0x07: AS923
253
254 0x08: AS923-1
255
256 0x09: AS923-2
257
258 0x0a: AS923-3
259
260 0x0b: CN470
261
262 0x0c: EU433
263
264 0x0d: KR920
265
266 0x0e: MA869
267
268
269 (% style="color:#037691" %)**Sub-Band**:
270
271 AU915 and US915:value 0x00 ~~ 0x08
272
273 CN470: value 0x0B ~~ 0x0C
274
275 Other Bands: Always 0x00
276
277
278 (% style="color:#037691" %)**Battery Info**:
279
280 Check the battery voltage.
281
282 Ex1: 0x0B45 = 2885mV
283
284 Ex2: 0x0B49 = 2889mV
285
286
287 === 2.3.2 Sensor value, FPORT~=2 ===
288
289
290 Uplink payload includes in total 9 bytes.
291
292 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
293 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**evice Status (FPORT=2)**
294 |(% style="background-color:#f2f2f2; width:103px" %)**Size (bytes)**|(% style="background-color:#f2f2f2; width:72px" %)**2**|(% style="background-color:#f2f2f2" %)**2**|(% style="background-color:#f2f2f2; width:91px" %)**2**|(% style="background-color:#f2f2f2; width:86px" %)**2**|(% style="background-color:#f2f2f2; width:44px" %)**1**
295 |(% style="background-color:#f2f2f2; width:103px" %)Value|(% style="background-color:#f2f2f2; width:72px" %)BAT|(% style="background-color:#f2f2f2" %)Probe Model|(% style="background-color:#f2f2f2; width:91px" %)0 ~~ 20mA value|(% style="background-color:#f2f2f2; width:86px" %)(((
296 UVC Value(0 ~~ 5v value)
297 )))|(% style="background-color:#f2f2f2; width:44px" %)IN1 &IN2 Interrupt  flag
298
299 (% class="wikigeneratedid" id="H" %)
300 [[image:image-20230607180529-1.png||height="181" width="1101"]]
301
302
303 === 2.3.3 Battery Info ===
304
305
306 Check the battery voltage for UV254-LB.
307
308 Ex1: 0x0B45 = 2885mV
309
310 Ex2: 0x0B49 = 2889mV
311
312
313 === 2.3.4 UVC Value 0~~5V value ( pin VDC_IN) ===
314
315
316 The UVC detect probed is connected to the VDC_IN pint. The probe has a 0~~5v output and map to 0～5mw/cm²
317
318 **Example**:
319
320 0x625(H) = 1573(D)/1000= 1.573 V... Which means 1.537mw/cm²
321
322
323 === 2.3.5 IN1&IN2&INT pin ===
324
325
326 IN1 and IN2 are used as digital input pins.
327
328 **Example**:
329
330 09 (H): (0x09&0x08)>>3=1    IN1 pin is high level.
331
332 09 (H): (0x09&0x04)>>2=0    IN2 pin is low level.
333
334 This data field shows if this packet is generated by **Interrupt Pin** or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up. Note: The Internet Pin is a separate pin in the screw terminal.
335
336
337 **Example:**
338
339 09 (H): (0x09&0x02)>>1=1    The level of the interrupt pin.
340
341 09 (H): 0x09&0x01=1              0x00: Normal uplink packet.
342
343 0x01: Interrupt Uplink Packet.
344
345
346 === 2.3.6 ​Decode payload in The Things Network ===
347
348
349 While using TTN network, you can add the payload format to decode the payload.
350
351
352 [[image:1675144839454-913.png]]
353
354
355 UV254-LB TTN Payload Decoder: [[dragino-end-node-decoder/UV254-LB at main · dragino/dragino-end-node-decoder · GitHub>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/UV254-LB]]
356
357
358 == 2.4 Uplink Interval ==
359
360
361 The UV254-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);"]]
362
363
364 == 2.5 Show Data in DataCake IoT Server ==
365
366
367 [[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:
368
369
370 (% style="color:blue" %)**Step 1: **(%%)Be sure that your device is programmed and properly connected to the network at this time.
371
372 (% 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:
373
374
375 [[image:1675144951092-237.png]]
376
377
378 [[image:1675144960452-126.png]]
379
380
381 (% style="color:blue" %)**Step 3:**(%%) Create an account or log in Datacake.
382
383 (% style="color:blue" %)**Step 4:** (%%)Create UV254-LB product.
384
385 [[image:image-20230626144149-1.png]]
386
387
388 [[image:1675145018212-853.png]]
389
390
391
392 [[image:image-20230626144435-2.png||height="691" width="837"]]
393
394
395 (% style="color:blue" %)**Step 5: **(%%)add payload decode
396
397 [[image:image-20230626144658-3.png||height="561" width="854"]]
398
399
400 [[image:1675145060812-420.png]]
401
402
403 After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
404
405
406 [[image:image-20230626164334-4.png||height="359" width="949"]]
407
408
409 == 2.6 Frequency Plans ==
410
411
412 The UV254-LB uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.
413
414 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
415
416
417 == 2.7 ​Firmware Change Log ==
418
419
420 **Firmware download link: **[[https:~~/~~/www.dropbox.com/sh/hk4dpwtttyz8lpi/AAA6axLQ7u0hKcr8Cmz3yxaga?dl=0>>https://www.dropbox.com/sh/hk4dpwtttyz8lpi/AAA6axLQ7u0hKcr8Cmz3yxaga?dl=0]]
421
422
423 = 3. Configure UV254-LB =
424
425 == 3.1 Configure Methods ==
426
427
428 UV254-LB supports below configure method:
429
430 * AT Command via Bluetooth Connection (**Recommand Way**): [[BLE Configure Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
431
432 * AT Command via UART Connection : See [[FAQ>>||anchor="H6.FAQ"]].
433
434 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
435
436 == 3.2 General Commands ==
437
438
439 These commands are to configure:
440
441 * General system settings like: uplink interval.
442
443 * LoRaWAN protocol & radio related command.
444
445 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
446
447 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
448
449
450 == 3.3 Commands special design for UV254-LB ==
451
452
453 These commands only valid for UV254-LB, as below:
454
455
456 === 3.3.1 Set Transmit Interval Time ===
457
458
459 Feature: Change LoRaWAN End Node Transmit Interval.
460
461 (% style="color:blue" %)**AT Command: AT+TDC**
462
463 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
464 |=(% style="width: 160px; background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 160px; background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Response**
465 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
466 30000
467 OK
468 the interval is 30000ms = 30s
469 )))
470 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
471 OK
472 Set transmit interval to 60000ms = 60 seconds
473 )))
474
475 (% style="color:blue" %)**Downlink Command: 0x01**
476
477 Format: Command Code (0x01) followed by 3 bytes time value.
478
479 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
480
481 * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
482 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
483
484 === 3.3.2 Set Interrupt Mode ===
485
486
487 Feature, Set Interrupt mode for GPIO_EXIT.
488
489 (% style="color:blue" %)**AT Command: AT+INTMOD**
490
491 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
492 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
493 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
494 0
495 OK
496 the mode is 0 =Disable Interrupt
497 )))
498 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
499 Set Transmit Interval
500 0. (Disable Interrupt),
501 ~1. (Trigger by rising and falling edge)
502 2. (Trigger by falling edge)
503 3. (Trigger by rising edge)
504 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
505
506 (% style="color:blue" %)**Downlink Command: 0x06**
507
508 Format: Command Code (0x06) followed by 3 bytes.
509
510 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
511
512 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
513 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
514
515 = 4. Battery & Power Consumption =
516
517
518 UV254-LB uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
519
520 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
521
522
523 = 5. OTA firmware update =
524
525
526 User can change firmware UV254-LB to:
527
528 * Change Frequency band/ region.
529 * Update with new features.
530 * Fix bugs.
531
532 Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/gf1glloczbzz19h/AABbuYI4WY6VdAmpXo6o1V2Ka?dl=0]]**
533
534 Methods to Update Firmware:
535
536 * (Recommanded way) OTA firmware update via wireless: **[[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/]]**
537 * Update through UART TTL interface. **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
538
539 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/]]**
540
541
542 = 6. FAQ =
543
544 == 6.1 How to use AT Command via UART to access device? ==
545
546
547 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]]
548
549
550 == 6.2 How to update firmware via UART port? ==
551
552
553 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]]
554
555
556 = 8. Order Info =
557
558
559 Part Number: (% style="color:blue" %)**UV254-LB-XX**
560
561 (% style="color:blue" %)**XX**(%%): The default frequency band
562
563 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
564 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
565 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
566 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
567 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
568 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
569 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
570 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
571
572 = 9. ​Packing Info =
573
574
575 (% style="color:#037691" %)**Package Includes**:
576
577 * UV254-LB UVC Radiation Sensor x 1
578
579 (% style="color:#037691" %)**Dimension and weight**:
580
581 * Device Size: cm
582
583 * Device Weight: g
584
585 * Package Size / pcs : cm
586
587 * Weight / pcs : g
588
589 = 10. Support =
590
591
592 * 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.
593
594 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].

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