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Last modified by Xiaoling on 2025/04/27 16:48
From version 51.30
edited by Xiaoling
on 2022/09/30 16:01
Change comment: There is no comment for this version
To version 70.1
edited by Edwin Chen
on 2022/10/09 23:47
Change comment: Uploaded new attachment "image-20221009234703-2.png", version {1}

Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
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61 61  * EEPROM: 520 KB
62 62  * Clock Speed: 32Mhz
63 63  
64 -
65 -
66 66  (% style="color:blue" %)**Common DC Characteristics:**
67 67  
68 68  * Supply Voltage: 5V via USB port or Internal li-on battery
69 69  * Operating Temperature: -40 ~~ 60°C
70 70  
71 -
72 -
73 73  (% style="color:blue" %)**LoRa Spec:**
74 74  
75 75  * Frequency Range,
... ... @@ -91,14 +91,10 @@
91 91  * Packet engine up to 256 bytes with CRC.
92 92  * LoRaWAN 1.0.3 Specification
93 93  
94 -
95 -
96 96  (% style="color:blue" %)**Battery:**
97 97  
98 98  * 1000mA Li-on Battery power (for model TrackerD)
99 99  
100 -
101 -
102 102  (% style="color:blue" %)**Power Consumption**
103 103  
104 104  * Sleeping Mode: 200uA
... ... @@ -107,7 +107,6 @@
107 107  
108 108  
109 109  
110 -
111 111  == 1.3  Features ==
112 112  
113 113  
... ... @@ -114,7 +114,7 @@
114 114  * LoRaWAN 1.0.3 Class A
115 115  * ESP32 PICO D4
116 116  * SX1276/78 Wireless Chip
117 -** Arduino IDE Compatible
108 +* Arduino IDE Compatible
118 118  * Open source hardware / software
119 119  * Regular/ Real-time GPS,BLE,WIFI tracking
120 120  * Built-in3 axis accelerometer (LIS3DH)
... ... @@ -128,7 +128,6 @@
128 128  
129 129  
130 130  
131 -
132 132  == 1.4  Applications ==
133 133  
134 134  
... ... @@ -137,7 +137,6 @@
137 137  
138 138  
139 139  
140 -
141 141  = 2.1 Use TrackerD =
142 142  
143 143  
... ... @@ -200,42 +200,93 @@
200 200  (% 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.
201 201  
202 202  
203 -(% style="color:blue" %)**Positioning Mode(SMOD):**
204 204  
205 -* (% style="color:#037691" %)**GPS ONLY(Factory Settings):    **(%%)only get GPS location info.
206 -* (% style="color:#037691" %)**BLE ONLY:              **(%%)Only obtain iBeacon info via BLE. Design for Indoor tracking.
207 -* (% style="color:#037691" %)**GPS/BLE Hybrid:   **(%%)Combination for Indoor and Outdoor tracking.
193 +== 2.3  Positioning Mode(SMOD) ==
208 208  
209 -User can switch modes by [[changing SMOD>>||anchor="H3.2.7SetPositioningMode"]].
210 210  
196 +Users can set TrackerD to different Positioning Mode for different applications. Below mod are supported.
211 211  
198 +* (% style="color:#037691" %)**GPS ONLY(Factory Settings):    **(%%)only get and uplink GPS location info.
199 +* (% style="color:#037691" %)**BLE ONLY:              **(%%)Only obtain iBeacon info via BLE and uplink. Design for Indoor tracking.
200 +* (% 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.
212 212  
213 -== 2.3 Uplink Payload ==
202 +Users can switch modes by [[changing SMOD>>||anchor="H3.2.7SetPositioningMode"]].
214 214  
215 215  
216 -=== 2.3.1 Uplink FPORT~=5, Device Status ===
217 217  
206 +== 2.4  Uplink Payload ==
218 218  
219 219  
220 -=== 2.3.2 Uplink FPORT~= , Realtime GNSS Positioning ===
209 +=== 2.4.1 Uplink FPORT~=5, Device Status ===
221 221  
222 222  
223 -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. )
212 +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.
224 224  
225 225  
215 +(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
216 +|=(% 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
217 +|=(% 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
218 +
219 +[[image:1665301570342-765.png]]
220 +
221 +
222 +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"]]
223 +
224 +**Sensor Model**: For TrackerD, this value is 0x13.
225 +
226 +**Firmware Version**: 0x0100, Means: v1.0.0 version.
227 +
228 +**Frequency Band**:
229 +
230 +*0x01: EU868
231 +
232 +*0x02: US915
233 +
234 +*0x03: IN865
235 +
236 +*0x04: AU915
237 +
238 +*0x05: KZ865
239 +
240 +*0x06: RU864
241 +
242 +*0x07: AS923
243 +
244 +*0x08: AS923-1
245 +
246 +*0x09: AS923-2
247 +
248 +*0x0a: AS923-3
249 +
250 +**Sub-Band**: value 0x00 ~~ 0x08(only for CN470, AU915,US915. Others are0x00)
251 +
252 +**BAT**: shows the battery voltage for TrackerD.
253 +
254 +Ex1: 0x0B3A = 2874mV
255 +
256 +Use can also get the Device Status uplink through the downlink command:
257 +
258 +
259 +
260 +=== 2.4.2 Uplink FPORT~=2, Realtime GNSS Positioning + Temperature & Humidity ===
261 +
262 +
263 +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.
264 +
265 +
226 226  (% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:480px" %)
227 227  |=(% scope="row" style="width: 50px;" %)(((
228 228  **Size(bytes)**
229 -)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:50px" %)1|(% style="width:88px" %)(((
230 -2(optional)
269 +)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:73px" %)1|(% style="width:40px" %)(((
270 +2
231 231  )))|(% style="width:87px" %)(((
232 -2(optional)
272 +2
233 233  )))
234 234  |=(% style="width: 69px;" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)(((
235 235  [[Alarm & BAT>>||anchor="HAlarm26BAT:"]]
236 -)))|(% style="width:52px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:88px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:87px" %)[[Tem>>||anchor="HTem:"]]
276 +)))|(% style="width:73px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:40px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:87px" %)[[Tem>>||anchor="HTem:"]]
237 237  
238 -[[image:1664501958445-288.png]]
278 +[[image:1665301636888-168.png]]
239 239  
240 240  
241 241  ==== (% style="color:blue" %)**Alarm & BAT:**(%%) ====
... ... @@ -244,13 +244,17 @@
244 244  |=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)1 bit|(% style="width:80px" %)1bit|(% style="width:50px" %)14bits
245 245  |=(% style="width: 72px;" %)**Value**|(% style="width:67px" %)reserve|(% style="width:118px" %)Alarm Indicate|(% style="width:63px" %)[[BAT>>||anchor="HBAT:"]] 
246 246  
287 +(% class="wikigeneratedid" %)
288 +==== ====
247 247  
290 +(% class="wikigeneratedid" %)
291 +==== ====
248 248  
249 249  ==== (% style="color:blue" %)**FLAG:**(%%) ====
250 250  
251 251  (% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:250px" %)
252 -|=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)2bits|(% style="width:50px" %)1bit|(% style="width:100px" %)5 bits
253 -|=(% style="width: 79px;" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H3.2.7SetPositioningMode"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]|(% style="width:140px" %)Firmware version 
296 +|=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)2bits|(% style="width:50px" %)1bit
297 +|=(% style="width: 79px;" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H3.2.7SetPositioningMode"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]
254 254  
255 255  **Example:** Payload: 0x02863D68 FAC29BAF 4B45 60 0202 011A 
256 256  
... ... @@ -266,17 +266,14 @@
266 266  
267 267  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.
268 268  
269 -2.  In firmware version v1.5, Roll & Pitch is disabled by default.
313 +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:
270 270  
271 -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:
272 272  
273 -
274 274  [[image:1664502116362-706.png]]
275 275  
276 276  
319 +3.  While GPS can't get location info after timeout(FTIME Parameter), the latitude and longitude will be filled with all 0x00:
277 277  
278 -4.  While GPS can't get location info after timeout(FTIME Parameter), the latitude and longitude will be filled with all 0x00:
279 -
280 280  [[image:1664502166010-515.png]]
281 281  
282 282  
... ... @@ -286,12 +286,13 @@
286 286  Example:  0x4B & 0x40 >> 6 = 0x01
287 287  
288 288  
330 +
289 289  ==== (% style="color:blue" %)**BAT:**(%%) ====
290 290  
291 291  Example:  0x0CDD & 0x3FFF ⇒ 3293 (mV).
292 292  
293 293  (((
294 -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: \
336 +The battery info shows the battery voltage, User can use the below mapping to indicate the battery in percentage: \
295 295  )))
296 296  
297 297  * > 4.0v :  80% ~~ 100%
... ... @@ -302,10 +302,8 @@
302 302  
303 303  
304 304  
305 -
306 306  ==== (% style="color:blue" %)**LON:**(%%) ====
307 307  
308 -
309 309  Enable/Disable LED activity for uplink
310 310  
311 311  (((
... ... @@ -328,15 +328,51 @@
328 328  
329 329  
330 330  
331 -=== 2.3.3 Uplink FPORT~= , History GNSS Positioning ===
371 +=== 2.4.3  Uplink FPORT~=3, Realtime GNSS Positioning (Default Mode) ===
332 332  
333 333  
374 +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)
334 334  
335 -=== 2.3.4 BLE positioning Payload(Fport2) ===
336 336  
377 +(% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:480px" %)
378 +|=(% scope="row" style="width: 50px;" %)(((
379 +**Size(bytes)**
380 +)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:73px" %)1
381 +|=(% style="width: 69px;" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)(((
382 +[[Alarm & BAT>>||anchor="HAlarm26BAT:"]]
383 +)))|(% style="width:73px" %)[[FLAG>>||anchor="HFLAG:"]]
337 337  
338 -Different MODE has different payload:  (% style="color:blue" %)**MODE=2**
385 +(% class="wikigeneratedid" %)
386 +[[image:1665301687277-443.png]]
339 339  
388 +
389 +
390 +=== 2.4.4  Uplink FPORT~=4, History GNSS Positioning ===
391 +
392 +
393 +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.
394 +
395 +
396 +(% style="color:red" %)**Note for this mode:**
397 +
398 +* a) TrackerD will do an ACK check for data records sending to make sure every data arrive server.
399 +* 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.
400 +
401 +The payload is 15 bytes, as below.
402 +
403 +(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
404 +|=(% scope="row" %)(((
405 +**Size(bytes)**
406 +)))|4|4|2|1|1|1|1|1
407 +|=**Value**|Latitude|Longitude|Year|Month|Day|Hous|Min|Sen
408 +
409 +[[image:image-20221009160309-2.png]]
410 +
411 +
412 +
413 +=== 2.4.5  Uplink FPORT~=6, BLE Positioning with Strongest iBeacon ===
414 +
415 +
340 340  (% border="1.5" cellspacing="3" style="background-color:#ffffcc; color:green; width:450px" %)
341 341  |=(% scope="row" style="width: 60px;" %)(((
342 342  **Size(bytes)**
... ... @@ -367,7 +367,7 @@
367 367  
368 368  
369 369  
370 -=== 2.3.5 Add Payload format in TTN V3 ===
446 +=== 2.4.6  Add Payload format in TTN V3 ===
371 371  
372 372  
373 373  In TTN V3, use can add a custom payload so it shows friendly.
... ... @@ -387,7 +387,7 @@
387 387  
388 388  
389 389  
390 -== 2.4 Integrate with Datacake ==
466 +== 2.5 Integrate with Datacake ==
391 391  
392 392  
393 393  (((
... ... @@ -403,7 +403,7 @@
403 403  
404 404  
405 405  
406 -== 2.5 Integrate with Tago ==
482 +== 2.6 Integrate with Tago ==
407 407  
408 408  
409 409  (((
... ... @@ -419,9 +419,16 @@
419 419  
420 420  
421 421  
422 -== 2.6 Alarm Mode ==
498 +== 2.7  Datalog Feature ==
423 423  
424 424  
501 +total 273 entries,by default disable
502 +
503 +
504 +
505 +== 2.8 Alarm Mode ==
506 +
507 +
425 425  (((
426 426  User can push the (% style="color:red" %)**RED button**(%%) by more than 5 seconds to enter Alarm Mode.
427 427  )))
... ... @@ -445,13 +445,16 @@
445 445  
446 446  
447 447  
448 -== 2.7 Sports Mode ==
531 +== 2.9 Transport Mode ==
449 449  
450 450  
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.
451 451  
452 -== 2.8 LED Status ==
453 453  
454 454  
538 +== 2.10 LED Status ==
539 +
540 +
455 455  (% border="1.5" style="background-color:#ffffcc; color:green; width:500px" %)
456 456  |=(% style="width: 150px;" %)**Event**|=(% style="width: 200px;" %)**Action**|=(% style="width: 150px;" %)**AT+LON to control on/off**
457 457  |(% 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
... ... @@ -468,9 +468,10 @@
468 468  
469 469  
470 470  
471 -== 2.9 Button Function ==
472 472  
558 +== 2.11 Button Function ==
473 473  
560 +
474 474  (% style="color:blue" %)**RESET button:**
475 475  
476 476  [[image:1664502835802-546.png]]
... ... @@ -491,9 +491,10 @@
491 491  
492 492  
493 493  
494 -== 2.10 USB Port Function ==
495 495  
582 +== 2.12 USB Port Function ==
496 496  
584 +
497 497  The USB interface of TrackerD has below functions:
498 498  
499 499  * Power on the device
... ... @@ -576,16 +576,16 @@
576 576  
577 577  
578 578  
579 -=== 3.2.3 Set Sports Mode Packet transmission interval ===
667 +=== 3.2.3 Set Transport Mode Packet transmission interval ===
580 580  
581 581  
582 -Set sports packet transmit interval
670 +Set Transport Mode packet transmit interval
583 583  
584 584  * (% style="color:blue" %)**AT Command:**
585 585  
586 586  (% style="color:#037691" %)**AT+MTDC=xx. **
587 587  
588 -Example:  AT+MTDC=300000  **~-~->    ** Set Sports Mode Packet Interval to 300 seconds. TrackerD will send every 300 seconds in Sports mode, Default Value: 300000
676 +Example:  AT+MTDC=300000  **~-~->    ** Set Transport Mode Packet Interval to 300 seconds. TrackerD will send every 300 seconds in Transport mode, Default Value: 300000
589 589  
590 590  
591 591  * (% style="color:blue" %)**Downlink Payload (prefix 0x03):**
... ... @@ -625,16 +625,16 @@
625 625  
626 626  
627 627  
628 -=== 3.2.6 Disable/Enable movement detect (Debug Only) ===
716 +=== 3.2.6 Disable/Enable Transport Mode ===
629 629  
630 630  
631 -User can use this feature to check and set thread hole of movement detect
719 +Users can use this feature to enable/disable Transport Mode.
632 632  
633 633  * (% style="color:blue" %)**AT Command:**
634 634  
635 635  (% style="color:#037691" %)**AT+INTWK=xx.  (Disable (0), Enable (1), default:0)**
636 636  
637 -Example:  AT+ INTWK =1  **~-~->   ** Enable detect movement.
725 +Example:  AT+ INTWK =1  **~-~->   ** Enable Transport Mode.
638 638  
639 639  
640 640  * (% style="color:blue" %)**Downlink Payload (prefix 0xAF):**
... ... @@ -646,23 +646,30 @@
646 646  === 3.2.7 Set Positioning Mode ===
647 647  
648 648  
649 -SMOD define the how TrackerD scan and uplink date.
737 +SMOD define the how TrackerD scan and uplink data:
650 650  
651 -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。
652 652  
653 -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）。
740 +* (% style="color:blue" %)**AT Command:**
654 654  
655 -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）。
742 +(% style="color:#037691" %)**AT+SMOD=aa,bb**
656 656  
657 -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。
744 +(% style="color:#037691" %)** aa:**
658 658  
746 +* (% style="color:#037691" %)**1: GPS ONLY(Factory Settings):    **(%%)only get and uplink GPS location info.
747 +* (% style="color:#037691" %)**2: BLE ONLY:              **(%%)Only obtain iBeacon info via BLE and uplink. Design for Indoor tracking.
748 +* (% 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
659 659  
750 +(% style="color:#037691" %)**bb:**
660 660  
661 -* (% style="color:blue" %)**AT Command:**
752 +(% style="color:#037691" %)** if aa = 1: **
662 662  
663 -(% style="color:#037691" %)**AT+SMOD=xx. **
754 +* (% style="color:#037691" %)**0 :  **(%%)GPS+ BAT+ State+Tem&Hum
755 +* (% style="color:#037691" %)**1 :**(%%)  GPS +BAT State
664 664  
757 +(% style="color:#037691" %)** if aa = 2: **
665 665  
759 +* (% style="color:#037691" %)**3 :  **(%%)(iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State
760 +
666 666   **Example:**
667 667  
668 668   AT+ SMOD =1,0  **~-~-> ** GPS+ BAT+ State+Tem&Hum
... ... @@ -669,7 +669,7 @@
669 669  
670 670   AT+ SMOD =1,1    **~-~->**  GPS +BAT State
671 671  
672 - AT+ SMOD =2,3    **~-~->**  (iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State。
767 + AT+ SMOD =2,3    **~-~->**  (iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State
673 673  
674 674  
675 675  * (% style="color:blue" %)**Downlink Payload (prefix 0xA5):**
... ... @@ -700,7 +700,7 @@
700 700  
701 701  
702 702  
703 -=== 3.3.9 Set PDOP value for GPS fix accuracy ===
798 +=== 3.2.9 Set PDOP value for GPS fix accuracy ===
704 704  
705 705  
706 706  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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823 823  [[image:1664503635019-941.png]]
824 824  
825 825  
921 +
826 826  * (% style="color:#037691" %)**Go to tools ~-~-> Boards ~-~-> Boards Manager**,(%%) **find the esp32 information and install it.**
827 827  
828 828  [[image:1664503715811-892.png]]
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889 889  
890 890  
891 891  
988 +
892 892  = 8.  Order Info =
893 893  
894 894  
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922 922  
923 923  
924 924  
925 -
926 926  = 10. Support =
927 927  
928 928  
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931 931  
932 932  
933 933  
934 -
935 935  = 11.  Reference =
936 936  
937 937  
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