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Last modified by Xiaoling on 2025/04/27 16:48
From version 51.32
edited by Xiaoling
on 2022/09/30 16:48
Change comment: There is no comment for this version
To version 71.1
edited by Edwin Chen
on 2022/10/09 23:47
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
... ... @@ -61,13 +61,11 @@
61 61  * EEPROM: 520 KB
62 62  * Clock Speed: 32Mhz
63 63  
64 -
65 65  (% style="color:blue" %)**Common DC Characteristics:**
66 66  
67 67  * Supply Voltage: 5V via USB port or Internal li-on battery
68 68  * Operating Temperature: -40 ~~ 60°C
69 69  
70 -
71 71  (% style="color:blue" %)**LoRa Spec:**
72 72  
73 73  * Frequency Range,
... ... @@ -89,12 +89,10 @@
89 89  * Packet engine up to 256 bytes with CRC.
90 90  * LoRaWAN 1.0.3 Specification
91 91  
92 -
93 93  (% style="color:blue" %)**Battery:**
94 94  
95 95  * 1000mA Li-on Battery power (for model TrackerD)
96 96  
97 -
98 98  (% style="color:blue" %)**Power Consumption**
99 99  
100 100  * Sleeping Mode: 200uA
... ... @@ -102,7 +102,6 @@
102 102  * Tracking: max: 38mA
103 103  
104 104  
105 -
106 106  == 1.3  Features ==
107 107  
108 108  
... ... @@ -122,7 +122,6 @@
122 122  * Datalog
123 123  
124 124  
125 -
126 126  == 1.4  Applications ==
127 127  
128 128  
... ... @@ -130,7 +130,6 @@
130 130  * Human tracking
131 131  
132 132  
133 -
134 134  = 2.1 Use TrackerD =
135 135  
136 136  
... ... @@ -193,42 +193,93 @@
193 193  (% style="color:blue" %)**Step 3:**(%%) TrackerD will auto join to the LoRaWAN network. After join success, TrackerD will start to upload message to IoT server.
194 194  
195 195  
196 -(% style="color:blue" %)**Positioning Mode(SMOD):**
197 197  
198 -* (% style="color:#037691" %)**GPS ONLY(Factory Settings):    **(%%)only get GPS location info.
199 -* (% style="color:#037691" %)**BLE ONLY:              **(%%)Only obtain iBeacon info via BLE. Design for Indoor tracking.
200 -* (% style="color:#037691" %)**GPS/BLE Hybrid:   **(%%)Combination for Indoor and Outdoor tracking.
190 +== 2.3  Positioning Mode(SMOD) ==
201 201  
202 -User can switch modes by [[changing SMOD>>||anchor="H3.2.7SetPositioningMode"]].
203 203  
193 +Users can set TrackerD to different Positioning Mode for different applications. Below mod are supported.
204 204  
195 +* (% style="color:#037691" %)**GPS ONLY(Factory Settings):    **(%%)only get and uplink GPS location info.
196 +* (% style="color:#037691" %)**BLE ONLY:              **(%%)Only obtain iBeacon info via BLE and uplink. Design for Indoor tracking.
197 +* (% style="color:#037691" %)**GPS/BLE Hybrid:   **(%%)Combination for Indoor and Outdoor tracking.Devices will try to search BLE iBeacon first. If device can't find the iBeacon, it will use GPS for positioning.
205 205  
206 -== 2.3 Uplink Payload ==
199 +Users can switch modes by [[changing SMOD>>||anchor="H3.2.7SetPositioningMode"]].
207 207  
208 208  
209 -=== 2.3.1 Uplink FPORT~=5, Device Status ===
210 210  
203 +== 2.4  Uplink Payload ==
211 211  
212 212  
213 -=== 2.3.2 Uplink FPORT~= , Realtime GNSS Positioning ===
206 +=== 2.4.1 Uplink FPORT~=5, Device Status ===
214 214  
215 215  
216 -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. )
209 +Uplink the device configures with FPORT=5. Once LGT92 Joined the network, it will uplink this message to the server. After first uplink, LHT52 will uplink Device Status every 12 hours.
217 217  
218 218  
212 +(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
213 +|=(% scope="row" style="width: 108px;" %)**Size(bytes)**|=(% style="width: 82px;" %)**1**|=(% style="width: 83px;" %)**2**|=(% style="width: 94px;" %)**1**|=(% style="width: 84px;" %)**1**|=(% style="width: 44px;" %)2|=(% style="width: 63px;" %)**2**|=(% style="width: 60px;" %)1
214 +|=(% style="width: 108px;" %)**Value**|(% style="width:82px" %)Sensor Model|(% style="width:83px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:84px" %)Sub-band|(% style="width:44px" %)BAT|(% style="width:63px" %)SMOD|(% style="width:60px" %)Status
215 +
216 +[[image:1665301570342-765.png]]
217 +
218 +
219 +Example Payload (FPort=5):  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT52%20-%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220621105116-11.png?rev=1.1||alt="image-20220621105116-11.png"]]
220 +
221 +**Sensor Model**: For TrackerD, this value is 0x13.
222 +
223 +**Firmware Version**: 0x0100, Means: v1.0.0 version.
224 +
225 +**Frequency Band**:
226 +
227 +*0x01: EU868
228 +
229 +*0x02: US915
230 +
231 +*0x03: IN865
232 +
233 +*0x04: AU915
234 +
235 +*0x05: KZ865
236 +
237 +*0x06: RU864
238 +
239 +*0x07: AS923
240 +
241 +*0x08: AS923-1
242 +
243 +*0x09: AS923-2
244 +
245 +*0x0a: AS923-3
246 +
247 +**Sub-Band**: value 0x00 ~~ 0x08(only for CN470, AU915,US915. Others are0x00)
248 +
249 +**BAT**: shows the battery voltage for TrackerD.
250 +
251 +Ex1: 0x0B3A = 2874mV
252 +
253 +Use can also get the Device Status uplink through the downlink command:
254 +
255 +
256 +
257 +=== 2.4.2 Uplink FPORT~=2, Realtime GNSS Positioning + Temperature & Humidity ===
258 +
259 +
260 +User can use **AT+SMOD=1,0** to enable uploading on-board Temperature and humidity values, and the total payload will be 15 bytes, please note that 15 bytes won't work on DR0 on US915/AU915 frequency band.
261 +
262 +
219 219  (% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:480px" %)
220 220  |=(% scope="row" style="width: 50px;" %)(((
221 221  **Size(bytes)**
222 -)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:50px" %)1|(% style="width:88px" %)(((
223 -2(optional)
266 +)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:73px" %)1|(% style="width:40px" %)(((
267 +2
224 224  )))|(% style="width:87px" %)(((
225 -2(optional)
269 +2
226 226  )))
227 227  |=(% style="width: 69px;" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)(((
228 228  [[Alarm & BAT>>||anchor="HAlarm26BAT:"]]
229 -)))|(% style="width:52px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:88px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:87px" %)[[Tem>>||anchor="HTem:"]]
273 +)))|(% style="width:73px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:40px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:87px" %)[[Tem>>||anchor="HTem:"]]
230 230  
231 -[[image:1664501958445-288.png]]
275 +[[image:1665301636888-168.png]]
232 232  
233 233  
234 234  ==== (% style="color:blue" %)**Alarm & BAT:**(%%) ====
... ... @@ -237,11 +237,15 @@
237 237  |=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)1 bit|(% style="width:80px" %)1bit|(% style="width:50px" %)14bits
238 238  |=(% style="width: 72px;" %)**Value**|(% style="width:67px" %)reserve|(% style="width:118px" %)Alarm Indicate|(% style="width:63px" %)[[BAT>>||anchor="HBAT:"]] 
239 239  
284 +==== ====
285 +
286 +==== ====
287 +
240 240  ==== (% style="color:blue" %)**FLAG:**(%%) ====
241 241  
242 242  (% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:250px" %)
243 -|=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)2bits|(% style="width:50px" %)1bit|(% style="width:100px" %)5 bits
244 -|=(% style="width: 79px;" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H3.2.7SetPositioningMode"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]|(% style="width:140px" %)Firmware version 
291 +|=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)2bits|(% style="width:50px" %)1bit
292 +|=(% style="width: 79px;" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H3.2.7SetPositioningMode"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]
245 245  
246 246  **Example:** Payload: 0x02863D68 FAC29BAF 4B45 60 0202 011A 
247 247  
... ... @@ -252,22 +252,18 @@
252 252  * Longitude: FAC29BAF  ⇒ //if (0x//FAC29BAF// & 0x80000000 = 1 )~://  //value = (0x//FAC29BAF// – 0x 100000000)/1000000 =//-87.9094//57//
253 253  
254 254  
255 -
256 256  (% style="color:red" %)**Important note:**
257 257  
258 258  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.
259 259  
260 -2.  In firmware version v1.5, Roll & Pitch is disabled by default.
307 +2.  In this mode, the total payload will be 15 bytes, while US915/AU915 DR0 accepts only 11 bytes payload. In this case, the payload on server will be ignore and shows as below:
261 261  
262 -3.  When enable 9-axis motion sensor, the total payload will be 15 bytes, while US915/AU915 DR0 accept only 11 bytes payload. In this case, the payload on server will be ignore and shows as below:
263 263  
264 -
265 265  [[image:1664502116362-706.png]]
266 266  
267 267  
313 +3.  While GPS can't get location info after timeout(FTIME Parameter), the latitude and longitude will be filled with all 0x00:
268 268  
269 -4.  While GPS can't get location info after timeout(FTIME Parameter), the latitude and longitude will be filled with all 0x00:
270 -
271 271  [[image:1664502166010-515.png]]
272 272  
273 273  
... ... @@ -277,12 +277,13 @@
277 277  Example:  0x4B & 0x40 >> 6 = 0x01
278 278  
279 279  
324 +
280 280  ==== (% style="color:blue" %)**BAT:**(%%) ====
281 281  
282 282  Example:  0x0CDD & 0x3FFF ⇒ 3293 (mV).
283 283  
284 284  (((
285 -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: \
330 +The battery info shows the battery voltage, User can use the below mapping to indicate the battery in percentage: \
286 286  )))
287 287  
288 288  * > 4.0v :  80% ~~ 100%
... ... @@ -292,10 +292,8 @@
292 292  * < 3.39v:  0~~20%
293 293  
294 294  
295 -
296 296  ==== (% style="color:blue" %)**LON:**(%%) ====
297 297  
298 -
299 299  Enable/Disable LED activity for uplink
300 300  
301 301  (((
... ... @@ -318,15 +318,51 @@
318 318  
319 319  
320 320  
321 -=== 2.3.3 Uplink FPORT~= , History GNSS Positioning ===
364 +=== 2.4.3  Uplink FPORT~=3, Realtime GNSS Positioning (Default Mode) ===
322 322  
323 323  
367 +The default uplink payload includes totally 11 bytes. The payload is the first 11 bytes of Uplink FPORT=2, real-time GNSS positioning, (remove the temp and humidity)
324 324  
325 -=== 2.3.4 BLE positioning Payload(Fport2) ===
326 326  
370 +(% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:480px" %)
371 +|=(% scope="row" style="width: 50px;" %)(((
372 +**Size(bytes)**
373 +)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:73px" %)1
374 +|=(% style="width: 69px;" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)(((
375 +[[Alarm & BAT>>||anchor="HAlarm26BAT:"]]
376 +)))|(% style="width:73px" %)[[FLAG>>||anchor="HFLAG:"]]
327 327  
328 -Different MODE has different payload:  (% style="color:blue" %)**MODE=2**
378 +(% class="wikigeneratedid" %)
379 +[[image:1665301687277-443.png]]
329 329  
381 +
382 +
383 +=== 2.4.4  Uplink FPORT~=4, History GNSS Positioning ===
384 +
385 +
386 +Set [[PNACKMD=1>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.13AutoSendNone-ACKmessages]], and TrackerD will wait for ACK for every uplink, when there is no LoRaWAN network, TrackerD will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
387 +
388 +
389 +(% style="color:red" %)**Note for this mode:**
390 +
391 +* a) TrackerD will do an ACK check for data records sending to make sure every data arrive server.
392 +* b) TrackerD will send data in (% style="color:blue" %)**CONFIRMED Mode**(%%) when PNACKMD=1, but TrackerD won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink, if TrackerD gets an ACK, TrackerD will consider there is a network connection and resend all NONE-ACK Messages.
393 +
394 +The payload is 15 bytes, as below.
395 +
396 +(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
397 +|=(% scope="row" %)(((
398 +**Size(bytes)**
399 +)))|4|4|2|1|1|1|1|1
400 +|=**Value**|Latitude|Longitude|Year|Month|Day|Hous|Min|Sen
401 +
402 +[[image:image-20221009160309-2.png]]
403 +
404 +
405 +
406 +=== 2.4.5  Uplink FPORT~=6, BLE Positioning with Strongest iBeacon ===
407 +
408 +
330 330  (% border="1.5" cellspacing="3" style="background-color:#ffffcc; color:green; width:450px" %)
331 331  |=(% scope="row" style="width: 60px;" %)(((
332 332  **Size(bytes)**
... ... @@ -356,7 +356,7 @@
356 356  
357 357  
358 358  
359 -=== 2.3.5 Add Payload format in TTN V3 ===
438 +=== 2.4.6  Add Payload format in TTN V3 ===
360 360  
361 361  
362 362  In TTN V3, use can add a custom payload so it shows friendly.
... ... @@ -376,7 +376,7 @@
376 376  
377 377  
378 378  
379 -== 2.4 Integrate with Datacake ==
458 +== 2.5 Integrate with Datacake ==
380 380  
381 381  
382 382  (((
... ... @@ -392,7 +392,7 @@
392 392  
393 393  
394 394  
395 -== 2.5 Integrate with Tago ==
474 +== 2.6 Integrate with Tago ==
396 396  
397 397  
398 398  (((
... ... @@ -408,9 +408,24 @@
408 408  
409 409  
410 410  
411 -== 2.6 Alarm Mode ==
490 +== 2.7  Datalog Feature ==
412 412  
413 413  
493 +total 273 entries,by default disable
494 +
495 +
496 +Example use case.
497 +
498 +[[image:image-20221009234703-2.png]]
499 +
500 +
501 +[[image:image-20221009234629-1.png||height="441" width="652"]]
502 +
503 +
504 +
505 +== 2.8 Alarm Mode ==
506 +
507 +
414 414  (((
415 415  User can push the (% style="color:red" %)**RED button**(%%) by more than 5 seconds to enter Alarm Mode.
416 416  )))
... ... @@ -434,13 +434,16 @@
434 434  
435 435  
436 436  
437 -== 2.7 Sports Mode ==
531 +== 2.9 Transport Mode ==
438 438  
439 439  
534 +In Transport Mode, TrackerD will check if there is motion. If there is no motion, device will send uplinks every 20 minutes. If there is motion, device will send uplink every 5 minutes.
440 440  
441 -== 2.8 LED Status ==
442 442  
443 443  
538 +== 2.10 LED Status ==
539 +
540 +
444 444  (% border="1.5" style="background-color:#ffffcc; color:green; width:500px" %)
445 445  |=(% style="width: 150px;" %)**Event**|=(% style="width: 200px;" %)**Action**|=(% style="width: 150px;" %)**AT+LON to control on/off**
446 446  |(% 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
... ... @@ -457,7 +457,7 @@
457 457  
458 458  
459 459  
460 -== 2.9 Button Function ==
557 +== 2.11 Button Function ==
461 461  
462 462  
463 463  (% style="color:blue" %)**RESET button:**
... ... @@ -480,7 +480,7 @@
480 480  
481 481  
482 482  
483 -== 2.10 USB Port Function ==
580 +== 2.12 USB Port Function ==
484 484  
485 485  
486 486  The USB interface of TrackerD has below functions:
... ... @@ -564,16 +564,16 @@
564 564  
565 565  
566 566  
567 -=== 3.2.3 Set Sports Mode Packet transmission interval ===
664 +=== 3.2.3 Set Transport Mode Packet transmission interval ===
568 568  
569 569  
570 -Set sports packet transmit interval
667 +Set Transport Mode packet transmit interval
571 571  
572 572  * (% style="color:blue" %)**AT Command:**
573 573  
574 574  (% style="color:#037691" %)**AT+MTDC=xx. **
575 575  
576 -Example:  AT+MTDC=300000  **~-~->    ** Set Sports Mode Packet Interval to 300 seconds. TrackerD will send every 300 seconds in Sports mode, Default Value: 300000
673 +Example:  AT+MTDC=300000  **~-~->    ** Set Transport Mode Packet Interval to 300 seconds. TrackerD will send every 300 seconds in Transport mode, Default Value: 300000
577 577  
578 578  
579 579  * (% style="color:blue" %)**Downlink Payload (prefix 0x03):**
... ... @@ -613,16 +613,16 @@
613 613  
614 614  
615 615  
616 -=== 3.2.6 Disable/Enable movement detect (Debug Only) ===
713 +=== 3.2.6 Disable/Enable Transport Mode ===
617 617  
618 618  
619 -User can use this feature to check and set thread hole of movement detect
716 +Users can use this feature to enable/disable Transport Mode.
620 620  
621 621  * (% style="color:blue" %)**AT Command:**
622 622  
623 623  (% style="color:#037691" %)**AT+INTWK=xx.  (Disable (0), Enable (1), default:0)**
624 624  
625 -Example:  AT+ INTWK =1  **~-~->   ** Enable detect movement.
722 +Example:  AT+ INTWK =1  **~-~->   ** Enable Transport Mode.
626 626  
627 627  
628 628  * (% style="color:blue" %)**Downlink Payload (prefix 0xAF):**
... ... @@ -634,23 +634,30 @@
634 634  === 3.2.7 Set Positioning Mode ===
635 635  
636 636  
637 -SMOD define the how TrackerD scan and uplink date.
734 +SMOD define the how TrackerD scan and uplink data:
638 638  
639 -GPS室外定位模式：  设备默认模式，设备入网后会发送device当前模式下的信息，随后立即定位发送数据包（默认是3分钟定位，超过将发送无效数据），如果出现意外情况下，快速按键3下，将会发出报警消息（默认每分钟发送一次）。GPS还有一种logdata模式，在断网的情况下将数据存储下来，等到有网的时候，一次将数据以每10秒上报。
640 640  
641 -BLE室内定位模式：  设备入网后会发送device当前模式下的信息，随后立即定位发送数据包（默认是5秒，超过将发送无效数据），如果出现意外情况下，快速按键3下，将会发出报警消息（默认每3分钟发送一次）。
737 +* (% style="color:blue" %)**AT Command:**
642 642  
643 -GPS和BLE混动模式：设备入网后会发送device当前模式下的信息，随后立即判断是否在室内，如果是就进行BLE定位，不是就GPS定位。如果出现意外情况下，快速按键3下，将会发出报警消息（默认每分钟发送一次）。
739 +(% style="color:#037691" %)**AT+SMOD=aa,bb**
644 644  
645 -运动模式：  设备入网后会发送device当前模式下的信息，随后发送GPS定位数据，设备判断是否在运动，没有运动传感器没有检测到动作，立即进入静止状态（默认20分钟），如果产生运动，将每5分钟发送一次数据，再第五分钟后检测设备有误运动，无将切换到静止状态，有立即发送数据。
741 +(% style="color:#037691" %)** aa:**
646 646  
743 +* (% style="color:#037691" %)**1: GPS ONLY(Factory Settings):    **(%%)only get and uplink GPS location info.
744 +* (% style="color:#037691" %)**2: BLE ONLY:              **(%%)Only obtain iBeacon info via BLE and uplink. Design for Indoor tracking.
745 +* (% style="color:#037691" %)**3: GPS/BLE Hybrid:   **(%%)Combination for Indoor and Outdoor tracking.Devices will try to search BLE iBeacon first. If device can't find the iBeacon, it will use GPS for positioning
647 647  
747 +(% style="color:#037691" %)**bb:**
648 648  
649 -* (% style="color:blue" %)**AT Command:**
749 +(% style="color:#037691" %)** if aa = 1: **
650 650  
651 -(% style="color:#037691" %)**AT+SMOD=xx. **
751 +* (% style="color:#037691" %)**0 :  **(%%)GPS+ BAT+ State+Tem&Hum
752 +* (% style="color:#037691" %)**1 :**(%%)  GPS +BAT State
652 652  
754 +(% style="color:#037691" %)** if aa = 2: **
653 653  
756 +* (% style="color:#037691" %)**3 :  **(%%)(iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State
757 +
654 654   **Example:**
655 655  
656 656   AT+ SMOD =1,0  **~-~-> ** GPS+ BAT+ State+Tem&Hum
... ... @@ -657,7 +657,7 @@
657 657  
658 658   AT+ SMOD =1,1    **~-~->**  GPS +BAT State
659 659  
660 - AT+ SMOD =2,3    **~-~->**  (iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State。
764 + AT+ SMOD =2,3    **~-~->**  (iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State
661 661  
662 662  
663 663  * (% style="color:blue" %)**Downlink Payload (prefix 0xA5):**
... ... @@ -688,7 +688,7 @@
688 688  
689 689  
690 690  
691 -=== 3.3.9 Set PDOP value for GPS fix accuracy ===
795 +=== 3.2.9 Set PDOP value for GPS fix accuracy ===
692 692  
693 693  
694 694  PDOP(Position Dilution of Precision) filter, TrackerD will only accept GPS data with a lower PDOP value than pre-configure PDOP value. If device can't get a valid GPS packet within FTIME timeout, it will use the GPS data with lowest PDOP value to server.
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811 811  [[image:1664503635019-941.png]]
812 812  
813 813  
918 +
814 814  * (% style="color:#037691" %)**Go to tools ~-~-> Boards ~-~-> Boards Manager**,(%%) **find the esp32 information and install it.**
815 815  
816 816  [[image:1664503715811-892.png]]
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877 877  
878 878  
879 879  
880 -
881 881  = 8.  Order Info =
882 882  
883 883  
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909 909  * Weight: 50g
910 910  
911 911  
912 -
913 913  = 10. Support =
914 914  
915 915  
... ... @@ -917,7 +917,6 @@
917 917  * 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]].
918 918  
919 919  
920 -
921 921  = 11.  Reference =
922 922  
923 923  
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