Changes for page TrackerD -- LoRaWAN Tracker User Manual
Last modified by Xiaoling on 2025/04/14 16:33
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... ... @@ -93,8 +93,6 @@ 93 93 * LoRa Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm 94 94 * Tracking: max: 38mA 95 95 96 - 97 - 98 98 == 1.3 Features == 99 99 100 100 ... ... @@ -113,7 +113,6 @@ 113 113 * Tri-color LED, Alarm button 114 114 * Datalog 115 115 116 - 117 117 == 1.4 Applications == 118 118 119 119 ... ... @@ -120,8 +120,6 @@ 120 120 * Logistics and Supply Chain Management 121 121 * Human tracking 122 122 123 - 124 - 125 125 = 2.1 Use TrackerD = 126 126 127 127 ... ... @@ -149,11 +149,10 @@ 149 149 150 150 Each TrackerD is shipped with a sticker with the default device EUI as below: 151 151 147 + 152 152 [[image:1664501677253-891.png]] 153 153 154 154 155 - 156 - 157 157 Input these keys to their LoRaWAN Server portal. Below is TTN V3 screen shot: 158 158 159 159 ... ... @@ -187,15 +187,15 @@ 187 187 188 188 (% style="color:blue" %)**Positioning Mode(SMOD):** 189 189 190 -* **GPS ONLY(Factory Settings): **only get GPS location info. 191 -* **BLE ONLY: **Only obtain iBeacon info via BLE. Design for Indoor tracking. 192 -* **GPS/BLE Hybrid: **Combination for Indoor and Outdoor tracking. 184 +* (% style="color:#037691" %)**GPS ONLY(Factory Settings): **(%%)only get GPS location info. 185 +* (% style="color:#037691" %)**BLE ONLY: **(%%)Only obtain iBeacon info via BLE. Design for Indoor tracking. 186 +* (% style="color:#037691" %)**GPS/BLE Hybrid: **(%%)Combination for Indoor and Outdoor tracking. 193 193 194 -User can switch modes by [[changing SMOD>> path:#Positioning_Mode]].188 +User can switch modes by [[changing SMOD>>||anchor="H3.2.7SetPositioningMode"]]. 195 195 196 196 197 197 198 -== 2.3 Uplink Payload ~-~-~-~-~-~-~-~-~-~-~-~-~-~-==192 +== 2.3 Uplink Payload == 199 199 200 200 201 201 === 2.3.1 Uplink FPORT~=5, Device Status === ... ... @@ -202,7 +202,7 @@ 202 202 203 203 204 204 205 -=== 2.3.2 Uplink FPORT~= , Realtime GNSS Positioning 199 +=== 2.3.2 Uplink FPORT~= , Realtime GNSS Positioning === 206 206 207 207 208 208 The default uplink payload includes totally 11 bytes. (User can use AT+MOD=0 to enable the Temperature and humidity sensor to hum/tem info from accelerometer. When accelerometer info is enable, total payload will be 15 bytes, please note 15 bytes won't work on DR0 on US915/AU915 frequency band. ) ... ... @@ -222,43 +222,35 @@ 222 222 223 223 (optional) 224 224 ))) 225 -|(% style="width:69px" %)**Value**|(% style="width:76px" %)[[Latitude>>path:#Location]]|(% style="width:87px" %)[[Longitude>>path:#Location]]|(% style="width:76px" %)((( 226 -[[Alarm &>>path:#Alarm]] 219 +|(% style="width:69px" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)((( 220 +[[Alarm & BAT>>||anchor="HAlarm26BAT:"]] 221 +)))|(% style="width:52px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:88px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:83px" %)[[Tem>>||anchor="HTem:"]] 227 227 228 -[[BAT>>path:#Alarm]] 229 -)))|(% style="width:52px" %)[[FLAG>>path:#Flag]]|(% style="width:88px" %)Hum|(% style="width:83px" %)[[Tem>>path:#Pitch]] 230 - 231 - 232 - 233 233 [[image:1664501958445-288.png]] 234 234 235 235 236 - **Alarm & BAT:**226 +==== (% style="color:blue" %)Alarm & BAT:(%%) ==== 237 237 238 238 (% border="2" style="background-color:#ffffcc; color:green; width:329px" %) 239 239 |(% style="width:72px" %)**Size(bit)**|(% style="width:67px" %)1 bit|(% style="width:118px" %)1bit|(% style="width:63px" %)14 bits 240 -|(% style="width:72px" %)**Value**|(% style="width:67px" %)reserve|(% style="width:118px" %)Alarm Indicate|(% style="width:63px" %)[[BAT>> path:#BAT]]230 +|(% style="width:72px" %)**Value**|(% style="width:67px" %)reserve|(% style="width:118px" %)Alarm Indicate|(% style="width:63px" %)[[BAT>>||anchor="HBAT:"]] 241 241 232 +==== (% style="color:blue" %)FLAG:(%%) ==== 242 242 243 - 244 -**FLAG:** 245 - 246 246 (% border="2" style="background-color:#ffffcc; color:green; width:332px" %) 247 247 |(% style="width:79px" %)**Size(bit)**|(% style="width:55px" %)2 bits|(% style="width:47px" %)1bit|(% style="width:140px" %)5 bits 248 -|(% style="width:79px" %)**Value**|(% style="width:55px" %)[[MOD>>pat h:#MD]]|(% style="width:47px" %)[[LON>>path:#LON]]|(% style="width:140px" %)Firmware version236 +|(% style="width:79px" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H2.3.4BLEpositioningPayload28Fport229"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]|(% style="width:140px" %)Firmware version 249 249 238 +**Example:** Payload: 0x02863D68 FAC29BAF 4B45 60 0202 011A 250 250 251 -**Example: Payload: 0x02863D68 FAC29BAF 4B45 60 0202 011A ** 252 252 241 +==== (% style="color:blue" %)Location info:(%%) ==== 253 253 254 -**Location info:** 243 +* Latitude: 02863D68 ⇒ //if (0x//02863D68//& 0x80000000 = 0 )~:// //value = 02863D68 /1000000 = 42.351976// 244 +* Longitude: FAC29BAF ⇒ //if (0x//FAC29BAF// & 0x80000000 = 1 )~:// //value = (0x//FAC29BAF// – 0x 100000000)/1000000 =//-87.9094//57// 255 255 256 -* Latitude: 02863D68 ⇒ //if (0x//02863D68//& 0x80000000 = 0 )~:// //value = 02863D68 /1000000 = 42.351976// 257 -* Longitude: FAC29BAF ⇒ //if (0x//FAC29BAF// & 0x80000000 = 1 )~:// //value = (0x//FAC29BAF// – 0x 100000000)/1000000 =//-87.9094//57// 246 +(% style="color:red" %)**Important note:** 258 258 259 - 260 -**Important note:** 261 - 262 262 1. When power is low (<2.84v), GPS won't be able to get location info and GPS feature will be disabled and the location field will be filled with 0x0FFFFFFF, 0x0FFFFFFF. 263 263 264 264 2. In firmware version v1.5, Roll & Pitch is disabled by default. ... ... @@ -276,12 +276,20 @@ 276 276 277 277 278 278 279 -* **Alarm**: Example: 0x4B & 0x40 >> 6 = 0x01 280 -* **BAT**: Example: 0x0CDD & 0x3FFF ⇒ 3293 (mV). 265 +==== (% style="color:blue" %)Alarm:(%%) ==== 281 281 282 -The battery info shows the current voltage, for **TrackerD** version which powered by li-on battery. User can use below mapping to indicate the battery in percentage: \ 283 283 268 +Example: 0x4B & 0x40 >> 6 = 0x01 284 284 270 + 271 +==== (% style="color:blue" %)BAT:(%%) ==== 272 + 273 + 274 +Example: 0x0CDD & 0x3FFF ⇒ 3293 (mV). 275 + 276 +The battery info shows the current voltage, for (% style="color:blue" %)**TrackerD**(%%) version which powered by li-on battery. User can use below mapping to indicate the battery in percentage: \ 277 + 278 + 285 285 * > 4.0v : 80% ~~ 100% 286 286 * 3.85v ~~3.99v: 60% ~~ 80% 287 287 * 3.70v ~~ 3.84v: 40% ~~ 60% ... ... @@ -289,8 +289,10 @@ 289 289 * < 3.39v: 0~~20% 290 290 291 291 286 +==== (% style="color:blue" %)LON:(%%) ==== 292 292 293 -* **LON: **Enable/Disable LED activity for uplink 288 + 289 +Enable/Disable LED activity for uplink 294 294 295 295 0x00: Disable LED indicator. 296 296 ... ... @@ -297,13 +297,18 @@ 297 297 0x01: Enable LED indicator (Default Value) 298 298 299 299 300 -* **Hum**: 0202 = //if (0x0202 & 0x8000 = 0 ): value =// 0x0202 / 100 = +514 ⇒ 51.4 degree 301 -* **//Tem//**//: 011A =if (0x011A & 0x8000 = 1 ): value =( 0x011A - 0x10000)/10(dec) ⇒ -//28.2 degree 296 +==== (% style="color:blue" %)Hum:(%%) ==== 302 302 298 +0202 = //if (0x0202 & 0x8000 = 0 ): value =// 0x0202 / 100 = +514 ⇒ 51.4 degree 303 303 304 304 301 +==== (% style="color:blue" %)Tem:(%%) ==== 305 305 303 +011A =if (0x011A & 0x8000 = 1 ): value =( 0x011A - 0x10000)/10(dec) ⇒ -//28.2 degree// 306 306 305 + 306 + 307 + 307 307 === 2.3.3 Uplink FPORT~= , History GNSS Positioning === 308 308 309 309 ... ... @@ -315,59 +315,49 @@ 315 315 316 316 **MODE=2** 317 317 318 -(% border="2" style="background-color:#ffffcc; color:green; width: 620px" %)319 +(% border="2" style="background-color:#ffffcc; color:green; width:491px" %) 319 319 |(% style="width:70px" %)((( 320 320 **Size** 321 321 322 322 **(bytes)** 323 -)))|(% style="width: 54px" %)16|(% style="width:72px" %)4|(% style="width:71px" %)4|(% style="width:145px" %)2|(% style="width:72px" %)4|(% style="width:76px" %)2|(% style="width:54px" %)1324 -|(% style="width:70px" %)**Value**|(% style="width: 54px" %)[[UUID>>path:#Location]]|(% style="width:72px" %)(((325 -iBeacon 326 - 327 -M AJOR324 +)))|(% style="width:44px" %)16|(% style="width:61px" %)4|(% style="width:63px" %)4|(% style="width:71px" %)2|(% style="width:50px" %)4|(% style="width:47px" %)2|(% style="width:15px" %)1 325 +|(% style="width:70px" %)**Value**|(% style="width:44px" %)[[UUID>>||anchor="HLocationinfo:"]]|(% style="width:61px" %)((( 326 +iBeacon MAJOR 327 +)))|(% style="width:63px" %)((( 328 +iBeacon MINOR 328 328 )))|(% style="width:71px" %)((( 329 -iBeacon 330 +iBeacon Measured Power 331 +)))|(% style="width:50px" %)((( 332 +iBeacon RSSI 333 +)))|(% style="width:47px" %)((( 334 +[[Alarm & BAT>>||anchor="HAlarm26BAT:"]] 335 +)))|(% style="width:15px" %)[[FLAG>>||anchor="HFLAG:"]] 330 330 331 -MINOR 332 -)))|(% style="width:145px" %)((( 333 -iBeacon Measured 334 334 335 -Power 336 -)))|(% style="width:72px" %)((( 337 -iBeacon 338 - 339 -RSSI 340 -)))|(% style="width:76px" %)((( 341 -[[Alarm &>>path:#Alarm]] 342 - 343 -[[BAT>>path:#Alarm]] 344 -)))|(% style="width:54px" %)[[FLAG>>path:#Flag]] 345 - 346 346 [[image:1664502425687-834.png]] 347 347 348 348 349 -* **BAT** :Ex1: 0x4B45 & 0x3FFF ⇒ 3901 (mV).350 -* **MODE: **Define the payload format. 351 -* **UUID: **The uuid from the strongest iBeacon. 352 -* **MAJOR** :The MAJOR from the strongest iBeacon.353 -* **MINOR** :The MAJOR from the strongest iBeacon.354 -* **Measured ****Power**:The Measured Power from the strongest iBeacon.355 -* **RSSI **: The RSSI from the strongest iBeacon.341 +* (% style="color:#037691" %)**BAT: ** (%%) Ex1: 0x4B45 & 0x3FFF ⇒ 3901 (mV). 342 +* (% style="color:#037691" %)**MODE: **(%%)Define the payload format. 343 +* (% style="color:#037691" %)**UUID: **(%%)The uuid from the strongest iBeacon. 344 +* (% style="color:#037691" %)**MAJOR:** (%%) The MAJOR from the strongest iBeacon. 345 +* (% style="color:#037691" %)**MINOR:** (%%)The MAJOR from the strongest iBeacon. 346 +* (% style="color:#037691" %)**Measured Power: ** (%%) The Measured Power from the strongest iBeacon. 347 +* (% style="color:#037691" %)**RSSI: ** (%%) The RSSI from the strongest iBeacon. 356 356 357 357 358 358 359 - 360 - 361 361 === 2.3.5 Add Payload format in TTN V3 === 362 362 363 363 364 364 In TTN V3, use can add a custom payload so it shows friendly. 365 365 366 -In the page Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder 356 +In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder** 367 367 368 368 369 369 [[image:1664502649601-895.png]] 370 370 361 + 371 371 Add the decoder from this link: 372 372 373 373 ... ... @@ -404,10 +404,10 @@ 404 404 == 2.6 Alarm Mode == 405 405 406 406 407 -User can push the **RED button** by more than 5 seconds to enter Alarm Mode. 398 +User can push the (% style="color:red" %)**RED button**(%%) by more than 5 seconds to enter Alarm Mode. 408 408 409 409 410 -Once enter Alarm mode, the **GREEN LED** will flash 3 times, the buzzer will alarm for 5 seconds, then TrackerD will immediately send a packet without location info and then send a data packet with GPS positioning information. After that, the device will send 60 packets at 1-minute intervals. The Alarm flag in the payload will be set for the next 60 packets unless exit alert mode. 401 +Once enter Alarm mode, the (% style="color:green" %)**GREEN LED**(%%) will flash 3 times, the buzzer will alarm for 5 seconds, then TrackerD will immediately send a packet without location info and then send a data packet with GPS positioning information. After that, the device will send 60 packets at 1-minute intervals. The Alarm flag in the payload will be set for the next 60 packets unless exit alert mode. 411 411 412 412 413 413 Two ways to exit alarm mode: ... ... @@ -415,7 +415,7 @@ 415 415 * Server send a downlink command to exit. 416 416 * User fast press the RED button 10 times. 417 417 418 -When exit alarm mode, **RED LED** will light up for 5 seconds, indicating that the alarm mode is exited. And the alert flag will be set to false. 409 +When exit alarm mode, (% style="color:red" %)**RED LED**(%%) will light up for 5 seconds, indicating that the alarm mode is exited. And the alert flag will be set to false. 419 419 420 420 421 421 ... ... @@ -428,17 +428,17 @@ 428 428 429 429 (% border="2" style="background-color:#ffffcc; color:green; width:636px" %) 430 430 |(% style="width:157px" %)**Event**|(% style="width:271px" %)**Action**|(% style="width:202px" %)**AT+LON to control on/off** 431 -|(% style="width:157px" %)**Power On**|(% style="width:271px" %)**BLUE, RED , Green** 432 -|(% style="width:157px" %)**Join request**|(% style="width:271px" %)**Green** led fast blink once (200ms)|(% style="width:202px" %)Yes 433 -|(% style="width:157px" %)**Join Success**|(% style="width:271px" %)**Green** led on 5 second|(% style="width:202px" %)N/A 434 -|(% style="width:157px" %)**Fixing Location**|(% style="width:271px" %)**BLUE **blinks 200ms per second|(% style="width:202px" %)Yes 435 -|(% style="width:157px" %)**Fixed and uplink**|(% style="width:271px" %)**GREEN **blinks twice (200ms per blink)|(% style="width:202px" %)Yes 436 -|(% style="width:157px" %)**Fail Fix and uplink**|(% style="width:271px" %)**RED **blinks twice (200ms per blink)|(% style="width:202px" %)Yes 437 -|(% style="width:157px" %)**Enter Alarm mode**|(% style="width:271px" %)**RED **on for 3 seconds|(% style="width:202px" %)Yes 438 -|(% style="width:157px" %)**Uplink under Alarm**|(% style="width:271px" %)**RED **on for 1 second|(% style="width:202px" %)Yes 439 -|(% style="width:157px" %)**Exit Alarm**|(% style="width:271px" %)**BLUE **led on 5 second|(% style="width:202px" %)Yes 440 -|(% style="width:157px" %)**Get Downlink**|(% style="width:271px" %)**GREEN** led on 1 second|(% style="width:202px" %)Yes 441 -|(% style="width:157px" %)**Movement Detect**|(% style="width:271px" %)**RED **on 500ms|(% style="width:202px" %)N/A 422 +|(% style="width:157px" %)**Power On**|(% style="width:271px" %)(% style="color:blue" %)**BLUE, **(% style="color:red" %)**RED , **(% style="color:green" %)**Green** flash once|(% style="width:202px" %)N/A 423 +|(% style="width:157px" %)**Join request**|(% style="width:271px" %)(% style="color:green" %)**Green** (%%)led fast blink once (200ms)|(% style="width:202px" %)Yes 424 +|(% style="width:157px" %)**Join Success**|(% style="width:271px" %)(% style="color:green" %)**Green**(%%) led on 5 second|(% style="width:202px" %)N/A 425 +|(% style="width:157px" %)**Fixing Location**|(% style="width:271px" %)(% style="color:blue" %)**BLUE **(%%)blinks 200ms per second|(% style="width:202px" %)Yes 426 +|(% style="width:157px" %)**Fixed and uplink**|(% style="width:271px" %)(% style="color:green" %)**GREEN ***(%%)***blinks twice (200ms per blink)**|(% style="width:202px" %)Yes 427 +|(% style="width:157px" %)**Fail Fix and uplink**|(% style="width:271px" %)(% style="color:red" %)**RED **(%%)blinks twice (200ms per blink)|(% style="width:202px" %)Yes 428 +|(% style="width:157px" %)**Enter Alarm mode**|(% style="width:271px" %)(% style="color:red" %)**RED **(%%)on for 3 seconds|(% style="width:202px" %)Yes 429 +|(% style="width:157px" %)**Uplink under Alarm**|(% style="width:271px" %)(% style="color:red" %)**RED **(%%)on for 1 second|(% style="width:202px" %)Yes 430 +|(% style="width:157px" %)**Exit Alarm**|(% style="width:271px" %)(% style="color:blue" %)**BLUE **(%%)led on 5 second|(% style="width:202px" %)Yes 431 +|(% style="width:157px" %)**Get Downlink**|(% style="width:271px" %)(% style="color:green" %)**GREEN**(%%) led on 1 second|(% style="width:202px" %)Yes 432 +|(% style="width:157px" %)**Movement Detect**|(% style="width:271px" %)(% style="color:red" %)**RED **(%%)led on 500ms|(% style="width:202px" %)N/A 442 442 443 443 444 444 ... ... @@ -446,7 +446,7 @@ 446 446 == 2.9 Button Function == 447 447 448 448 449 -**RESET button:** 440 +(% style="color:green" %)**RESET button:** 450 450 451 451 [[image:1664502835802-546.png]] 452 452 ... ... @@ -453,7 +453,7 @@ 453 453 Push this button will reboot the device. Device will exit alarm mode and re-join to LoRaWAN server. 454 454 455 455 456 -**RED button:** 447 +(% style="color:red" %)**RED button:** 457 457 458 458 [[image:1664502854406-763.png]] 459 459 ... ... @@ -460,12 +460,10 @@ 460 460 461 461 (% border="2" style="background-color:#ffffcc; color:green; width:627px" %) 462 462 |(% style="width:135px" %)**Function**|(% style="width:220px" %)**Action**|(% style="width:265px" %)**Description** 463 -|(% style="width:135px" %)Send Alarm|(% style="width:220px" %)Keep Pressing **RED** button for more than 5 seconds|(% style="width:265px" %)Enter Alarm Mode. See [[Alarm Mode>> path:#Alarm_Mode]]464 -|(% style="width:135px" %)Exit Alarm Mode|(% style="width:220px" %)Fast press the **RED** button 10 times|(% style="width:265px" %)Exit Alarm Mode 454 +|(% style="width:135px" %)Send Alarm|(% style="width:220px" %)Keep Pressing (% style="color:red" %)**RED**(%%) button for more than 5 seconds|(% style="width:265px" %)Enter Alarm Mode. See [[Alarm Mode>>||anchor="H2.6AlarmMode"]] 455 +|(% style="width:135px" %)Exit Alarm Mode|(% style="width:220px" %)Fast press the (% style="color:red" %)**RED** (%%)button 10 times|(% style="width:265px" %)Exit Alarm Mode 465 465 |(% style="width:135px" %)Enter Deep Sleep Mode|(% style="width:220px" %)Press and hold the button for 10 seconds, then quickly press the device 3 times to enter deep sleep|(% style="width:265px" %)This is the mode ship out from factory. CPU will be complete in sleep mode and no LoRa activity, only use before deploy. 466 466 467 - 468 - 469 469 == 2.10 USB Port Function == 470 470 471 471 ... ... @@ -473,18 +473,17 @@ 473 473 474 474 * Power on the device 475 475 * Recharge the battery 476 -* [[Configure Device>> path:#AT_Command]]477 -* [[Upgrade Firmware>> path:#upgrade_image]]465 +* [[Configure Device>>||anchor="H3.ConfigureTrackerDviaATcommandorLoRaWANdownlink"]] 466 +* [[Upgrade Firmware>>||anchor="H5.UploadFirmware"]] 478 478 479 479 480 480 481 - 482 482 = 3. Configure TrackerD via AT command or LoRaWAN downlink = 483 483 484 484 485 485 User can configure TrackerD via AT Command or LoRaWAN Downlink. 486 486 487 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>> url:http://wiki.dragino.com/xwiki/bin/view/Main/]]475 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]] 488 488 489 489 490 490 ... ... @@ -497,7 +497,7 @@ 497 497 [[image:1664502999401-486.png]] 498 498 499 499 500 -In PC, User needs to set serial tool baud rate to **115200** to access serial console for TrackerD. TrackerD will output system info once power on and user will be able to send AT commands: 488 +In PC, User needs to set serial tool baud rate to (% style="color:green" %)**115200**(%%) to access serial console for TrackerD. TrackerD will output system info once power on and user will be able to send AT commands: 501 501 502 502 503 503 [[image:1664503022490-662.png]] ... ... @@ -804,8 +804,6 @@ 804 804 805 805 * Go to tools ~-~-> Boards ~-~-> Boards Manager, find the esp32 information and install it. 806 806 807 - 808 - 809 809 [[image:1664503715811-892.png]] 810 810 811 811 ... ... @@ -812,7 +812,6 @@ 812 812 813 813 * Download the latest TrackerD from the dragino github: [[https:~~/~~/github.com/dragino/TrackerD>>url:https://github.com/dragino/TrackerD]] 814 814 815 - 816 816 Put the Library in the TrackerD directory into the libraries file in the Arduino directory: 817 817 818 818 ... ... @@ -869,10 +869,6 @@ 869 869 |(% style="width:118px" %)A8|(% style="width:67px" %)Yellow|(% style="width:123px" %)MTMS/GPIO14 870 870 |(% style="width:118px" %)B8|(% style="width:67px" %)Grey|(% style="width:123px" %)MTDO/GPIO15 871 871 872 - 873 - 874 - 875 - 876 876 = 8. Order Info = 877 877 878 878 ... ... @@ -888,10 +888,6 @@ 888 888 * (% style="color:red" %)**AU915**(%%): Default frequency band AU915 889 889 * (% style="color:red" %)**US915**(%%): Default frequency band US915 890 890 891 - 892 - 893 - 894 - 895 895 = 9. Packing Info = 896 896 897 897 ... ... @@ -905,9 +905,6 @@ 905 905 * Device Size: 85 x 48 x 15 cm 906 906 * Weight: 50g 907 907 908 - 909 - 910 - 911 911 = 10. Support = 912 912 913 913 ... ... @@ -914,9 +914,6 @@ 914 914 * 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. 915 915 * 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:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 916 916 917 - 918 - 919 - 920 920 = 11. Reference = 921 921 922 922