Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 17.1 >
edited by Xiaoling
on 2022/06/06 16:37
To version < 31.8 >
edited by Xiaoling
on 2022/06/06 17:24
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -66,11 +66,9 @@
66 66  
67 67  * Smart Agriculture
68 68  
69 -
70 70  (% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
71 71  ​
72 72  
73 -(% class="wikigeneratedid" %)
74 74  == 1.5 Firmware Change log ==
75 75  
76 76  
... ... @@ -107,27 +107,22 @@
107 107  
108 108  Each LSE01 is shipped with a sticker with the default device EUI as below:
109 109  
108 +[[image:image-20220606163732-6.jpeg]]
110 110  
111 -
112 -
113 113  You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
114 114  
115 -
116 116  **Add APP EUI in the application**
117 117  
118 118  
119 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
115 +[[image:1654504596150-405.png]]
120 120  
121 121  
122 122  
123 123  **Add APP KEY and DEV EUI**
124 124  
121 +[[image:1654504683289-357.png]]
125 125  
126 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
127 127  
128 -|(((
129 -
130 -)))
131 131  
132 132  **Step 2**: Power on LSE01
133 133  
... ... @@ -134,28 +134,18 @@
134 134  
135 135  Put a Jumper on JP2 to power on the device. ( The Jumper must be in FLASH position).
136 136  
130 +[[image:image-20220606163915-7.png]]
137 137  
138 138  
139 -|(((
140 -
141 -)))
142 -
143 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
144 -
145 -
146 -
147 -
148 -
149 149  **Step 3:** The LSE01 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
150 150  
151 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
135 +[[image:1654504778294-788.png]]
152 152  
153 153  
154 154  
139 +== 2.3 Uplink Payload ==
155 155  
156 -1.
157 -11. ​Uplink Payload
158 -111. MOD=0(Default Mode)
141 +=== 2.3.1 MOD~=0(Default Mode) ===
159 159  
160 160  LSE01 will uplink payload via LoRaWAN with below payload format: 
161 161  
... ... @@ -178,13 +178,12 @@
178 178  (Optional)
179 179  )))
180 180  
181 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
164 +[[image:1654504881641-514.png]]
182 182  
183 183  
184 -1.
185 -11.
186 -111. MOD=1(Original value)
187 187  
168 +=== 2.3.2 MOD~=1(Original value) ===
169 +
188 188  This mode can get the original AD value of moisture and original conductivity (with temperature drift compensation).
189 189  
190 190  |(((
... ... @@ -202,12 +202,12 @@
202 202  (Optional)
203 203  )))
204 204  
205 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
187 +[[image:1654504907647-967.png]]
206 206  
207 -1.
208 -11.
209 -111. Battery Info
210 210  
190 +
191 +=== 2.3.3 Battery Info ===
192 +
211 211  Check the battery voltage for LSE01.
212 212  
213 213  Ex1: 0x0B45 = 2885mV
... ... @@ -216,21 +216,19 @@
216 216  
217 217  
218 218  
219 -1.
220 -11.
221 -111. Soil Moisture
201 +=== 2.3.4 Soil Moisture ===
222 222  
223 223  Get the moisture content of the soil. The value range of the register is 0-10000(Decimal), divide this value by 100 to get the percentage of moisture in the soil.
224 224  
225 -For example, if the data you get from the register is 0x05 0xDC, the moisture content in the soil is
205 +For example, if the data you get from the register is __0x05 0xDC__, the moisture content in the soil is
226 226  
227 -**05DC(H) = 1500(D) /100 = 15%.**
228 228  
208 +(% style="color:#4f81bd" %)**05DC(H) = 1500(D) /100 = 15%.**
229 229  
230 -1.
231 -11.
232 -111. Soil Temperature
233 233  
211 +
212 +=== 2.3.5 Soil Temperature ===
213 +
234 234   Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is 0x09 0xEC, the temperature content in the soil is
235 235  
236 236  **Example**:
... ... @@ -240,21 +240,31 @@
240 240  If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
241 241  
242 242  
243 -1.
244 -11.
245 -111. Soil Conductivity (EC)
246 246  
247 -Obtain soluble salt concentration in soil or soluble ion concentration in liquid fertilizer or planting medium,. The value range of the register is 0 - 20000(Decimal)( Can be greater than 20000).
224 +=== 2.3.6 Soil Conductivity (EC) ===
248 248  
226 +(((
227 +Obtain (% style="color:#4f81bd" %)**__soluble salt concentration__**(%%) in soil or (% style="color:#4f81bd" %)**__soluble ion concentration in liquid fertilizer__**(%%) or (% style="color:#4f81bd" %)**__planting medium__**(%%). The value range of the register is 0 - 20000(Decimal)( Can be greater than 20000).
228 +)))
229 +
230 +(((
249 249  For example, if the data you get from the register is 0x00 0xC8, the soil conductivity is 00C8(H) = 200(D) = 200 uS/cm.
232 +)))
250 250  
251 -
234 +(((
252 252  Generally, the EC value of irrigation water is less than 800uS / cm.
236 +)))
253 253  
254 -1.
255 -11.
256 -111. MOD
238 +(((
239 +
240 +)))
257 257  
242 +(((
243 +
244 +)))
245 +
246 +=== 2.3.7 MOD ===
247 +
258 258  Firmware version at least v2.1 supports changing mode.
259 259  
260 260  For example, bytes[10]=90
... ... @@ -269,14 +269,13 @@
269 269  If** **payload =** **0x0A01, workmode=1
270 270  
271 271  
272 -1.
273 -11.
274 -111. ​Decode payload in The Things Network
275 275  
263 +=== 2.3.8 ​Decode payload in The Things Network ===
264 +
276 276  While using TTN network, you can add the payload format to decode the payload.
277 277  
278 278  
279 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
268 +[[image:1654505570700-128.png]]
280 280  
281 281  The payload decoder function for TTN is here:
282 282  
... ... @@ -283,30 +283,26 @@
283 283  LSE01 TTN Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
284 284  
285 285  
286 -1.
287 -11. Uplink Interval
275 +== 2.4 Uplink Interval ==
288 288  
289 289  The LSE01 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
290 290  
291 291  [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval]]
292 292  
293 -1.
294 -11. ​Downlink Payload
295 295  
282 +
283 +== 2.5 Downlink Payload ==
284 +
296 296  By default, LSE50 prints the downlink payload to console port.
297 297  
298 -|**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)**
299 -|TDC (Transmit Time Interval)|Any|01|4
300 -|RESET|Any|04|2
301 -|AT+CFM|Any|05|4
302 -|INTMOD|Any|06|4
303 -|MOD|Any|0A|2
287 +[[image:image-20220606165544-8.png]]
304 304  
305 -**Examples**
306 306  
290 +**Examples:**
307 307  
308 -**Set TDC**
309 309  
293 +* **Set TDC**
294 +
310 310  If the payload=0100003C, it means set the END Node’s TDC to 0x00003C=60(S), while type code is 01.
311 311  
312 312  Payload:    01 00 00 1E    TDC=30S
... ... @@ -314,18 +314,19 @@
314 314  Payload:    01 00 00 3C    TDC=60S
315 315  
316 316  
317 -**Reset**
302 +* **Reset**
318 318  
319 319  If payload = 0x04FF, it will reset the LSE01
320 320  
321 321  
322 -**CFM**
307 +* **CFM**
323 323  
324 324  Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
325 325  
326 -1.
327 -11. ​Show Data in DataCake IoT Server
328 328  
312 +
313 +== 2.6 ​Show Data in DataCake IoT Server ==
314 +
329 329  [[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:
330 330  
331 331  
... ... @@ -334,42 +334,34 @@
334 334  **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:
335 335  
336 336  
337 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
323 +[[image:1654505857935-743.png]]
338 338  
339 339  
340 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
326 +[[image:1654505874829-548.png]]
341 341  
342 -
343 -
344 -
345 -
346 346  Step 3: Create an account or log in Datacake.
347 347  
348 348  Step 4: Search the LSE01 and add DevEUI.
349 349  
350 350  
351 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
333 +[[image:1654505905236-553.png]]
352 352  
353 353  
354 -
355 355  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
356 356  
338 +[[image:1654505925508-181.png]]
357 357  
358 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
359 359  
360 360  
342 +== 2.7 Frequency Plans ==
361 361  
362 -1.
363 -11. Frequency Plans
364 -
365 365  The LSE01 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.
366 366  
367 -1.
368 -11.
369 -111. EU863-870 (EU868)
370 370  
371 -Uplink:
347 +=== 2.7.1 EU863-870 (EU868) ===
372 372  
349 +(% style="color:#037691" %)** Uplink:**
350 +
373 373  868.1 - SF7BW125 to SF12BW125
374 374  
375 375  868.3 - SF7BW125 to SF12BW125 and SF7BW250
... ... @@ -389,7 +389,7 @@
389 389  868.8 - FSK
390 390  
391 391  
392 -Downlink:
370 +(% style="color:#037691" %)** Downlink:**
393 393  
394 394  Uplink channels 1-9 (RX1)
395 395  
... ... @@ -396,13 +396,12 @@
396 396  869.525 - SF9BW125 (RX2 downlink only)
397 397  
398 398  
399 -1.
400 -11.
401 -111. US902-928(US915)
402 402  
378 +=== 2.7.2 US902-928(US915) ===
379 +
403 403  Used in USA, Canada and South America. Default use CHE=2
404 404  
405 -Uplink:
382 +(% style="color:#037691" %)**Uplink:**
406 406  
407 407  903.9 - SF7BW125 to SF10BW125
408 408  
... ... @@ -421,7 +421,7 @@
421 421  905.3 - SF7BW125 to SF10BW125
422 422  
423 423  
424 -Downlink:
401 +(% style="color:#037691" %)**Downlink:**
425 425  
426 426  923.3 - SF7BW500 to SF12BW500
427 427  
... ... @@ -442,13 +442,12 @@
442 442  923.3 - SF12BW500(RX2 downlink only)
443 443  
444 444  
445 -1.
446 -11.
447 -111. CN470-510 (CN470)
448 448  
423 +=== 2.7.3 CN470-510 (CN470) ===
424 +
449 449  Used in China, Default use CHE=1
450 450  
451 -Uplink:
427 +(% style="color:#037691" %)**Uplink:**
452 452  
453 453  486.3 - SF7BW125 to SF12BW125
454 454  
... ... @@ -467,7 +467,7 @@
467 467  487.7 - SF7BW125 to SF12BW125
468 468  
469 469  
470 -Downlink:
446 +(% style="color:#037691" %)**Downlink:**
471 471  
472 472  506.7 - SF7BW125 to SF12BW125
473 473  
... ... @@ -488,13 +488,12 @@
488 488  505.3 - SF12BW125 (RX2 downlink only)
489 489  
490 490  
491 -1.
492 -11.
493 -111. AU915-928(AU915)
494 494  
468 +=== 2.7.4 AU915-928(AU915) ===
469 +
495 495  Default use CHE=2
496 496  
497 -Uplink:
472 +(% style="color:#037691" %)**Uplink:**
498 498  
499 499  916.8 - SF7BW125 to SF12BW125
500 500  
... ... @@ -513,7 +513,7 @@
513 513  918.2 - SF7BW125 to SF12BW125
514 514  
515 515  
516 -Downlink:
491 +(% style="color:#037691" %)**Downlink:**
517 517  
518 518  923.3 - SF7BW500 to SF12BW500
519 519  
... ... @@ -533,22 +533,22 @@
533 533  
534 534  923.3 - SF12BW500(RX2 downlink only)
535 535  
536 -1.
537 -11.
538 -111. AS920-923 & AS923-925 (AS923)
539 539  
540 -**Default Uplink channel:**
541 541  
513 +=== 2.7.5 AS920-923 & AS923-925 (AS923) ===
514 +
515 +(% style="color:#037691" %)**Default Uplink channel:**
516 +
542 542  923.2 - SF7BW125 to SF10BW125
543 543  
544 544  923.4 - SF7BW125 to SF10BW125
545 545  
546 546  
547 -**Additional Uplink Channel**:
522 +(% style="color:#037691" %)**Additional Uplink Channel**:
548 548  
549 549  (OTAA mode, channel added by JoinAccept message)
550 550  
551 -**AS920~~AS923 for Japan, Malaysia, Singapore**:
526 +(% style="color:#037691" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
552 552  
553 553  922.2 - SF7BW125 to SF10BW125
554 554  
... ... @@ -563,7 +563,7 @@
563 563  922.0 - SF7BW125 to SF10BW125
564 564  
565 565  
566 -**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
541 +(% style="color:#037691" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
567 567  
568 568  923.6 - SF7BW125 to SF10BW125
569 569  
... ... @@ -578,18 +578,16 @@
578 578  924.6 - SF7BW125 to SF10BW125
579 579  
580 580  
556 +(% style="color:#037691" %)** Downlink:**
581 581  
582 -**Downlink:**
583 -
584 584  Uplink channels 1-8 (RX1)
585 585  
586 586  923.2 - SF10BW125 (RX2)
587 587  
588 588  
589 -1.
590 -11.
591 -111. KR920-923 (KR920)
592 592  
564 +=== 2.7.6 KR920-923 (KR920) ===
565 +
593 593  Default channel:
594 594  
595 595  922.1 - SF7BW125 to SF12BW125
... ... @@ -599,7 +599,7 @@
599 599  922.5 - SF7BW125 to SF12BW125
600 600  
601 601  
602 -Uplink: (OTAA mode, channel added by JoinAccept message)
575 +(% style="color:#037691" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
603 603  
604 604  922.1 - SF7BW125 to SF12BW125
605 605  
... ... @@ -616,7 +616,7 @@
616 616  923.3 - SF7BW125 to SF12BW125
617 617  
618 618  
619 -Downlink:
592 +(% style="color:#037691" %)**Downlink:**
620 620  
621 621  Uplink channels 1-7(RX1)
622 622  
... ... @@ -623,12 +623,11 @@
623 623  921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
624 624  
625 625  
626 -1.
627 -11.
628 -111. IN865-867 (IN865)
629 629  
630 -Uplink:
600 +=== 2.7.7 IN865-867 (IN865) ===
631 631  
602 +(% style="color:#037691" %)** Uplink:**
603 +
632 632  865.0625 - SF7BW125 to SF12BW125
633 633  
634 634  865.4025 - SF7BW125 to SF12BW125
... ... @@ -636,7 +636,7 @@
636 636  865.9850 - SF7BW125 to SF12BW125
637 637  
638 638  
639 -Downlink:
611 +(% style="color:#037691" %) **Downlink:**
640 640  
641 641  Uplink channels 1-3 (RX1)
642 642  
... ... @@ -643,110 +643,130 @@
643 643  866.550 - SF10BW125 (RX2)
644 644  
645 645  
646 -1.
647 -11. LED Indicator
648 648  
649 -The LSE01 has an internal LED which is to show the status of different state.
650 650  
620 +== 2.8 LED Indicator ==
651 651  
622 +The LSE01 has an internal LED which is to show the status of different state.
623 +
652 652  * Blink once when device power on.
653 653  * Solid ON for 5 seconds once device successful Join the network.
654 654  * Blink once when device transmit a packet.
655 655  
656 -1.
657 -11. Installation in Soil
658 658  
629 +== 2.9 Installation in Soil ==
630 +
659 659  **Measurement the soil surface**
660 660  
661 661  
662 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]] ​
634 +[[image:1654506634463-199.png]] ​
663 663  
636 +(((
637 +(((
664 664  Choose the proper measuring position. Avoid the probe to touch rocks or hard things. Split the surface soil according to the measured deep. Keep the measured as original density. Vertical insert the probe into the soil to be measured. Make sure not shake when inserting.
639 +)))
640 +)))
665 665  
666 666  
667 667  
644 +[[image:1654506665940-119.png]]
668 668  
669 -
670 -
671 -
672 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
673 -
674 -
675 -
646 +(((
676 676  Dig a hole with diameter > 20CM.
648 +)))
677 677  
650 +(((
678 678  Horizontal insert the probe to the soil and fill the hole for long term measurement.
652 +)))
679 679  
680 680  
655 +== 2.10 ​Firmware Change Log ==
681 681  
682 -
683 -1.
684 -11. ​Firmware Change Log
685 -
657 +(((
686 686  **Firmware download link:**
659 +)))
687 687  
661 +(((
688 688  [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
663 +)))
689 689  
665 +(((
666 +
667 +)))
690 690  
691 -**Firmware Upgrade Method:**
669 +(((
670 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
671 +)))
692 692  
693 -[[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Instruction_for_STM32_base_products#Introduction>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Instruction_for_STM32_base_products#Introduction]]
673 +(((
674 +
675 +)))
694 694  
695 -
677 +(((
696 696  **V1.0.**
679 +)))
697 697  
681 +(((
698 698  Release
683 +)))
699 699  
700 700  
686 +== 2.11 ​Battery Analysis ==
701 701  
702 -1.
703 -11. ​Battery Analysis
704 -111. ​Battery Type
688 +=== 2.11.1 ​Battery Type ===
705 705  
690 +(((
706 706  The LSE01 battery is a combination of a 4000mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
692 +)))
707 707  
708 -
694 +(((
709 709  The battery is designed to last for more than 5 years for the LSN50.
696 +)))
710 710  
698 +(((
699 +(((
700 +The battery-related documents are as below:
701 +)))
702 +)))
711 711  
712 -The battery related documents as below:
713 -
714 -* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
715 -* [[Lithium-Thionyl Chloride Battery>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet-EN.pdf]] datasheet, [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet_PM-ER18505-S-02-LF_EN.pdf]]
716 -* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
717 -
718 -|(((
719 -JST-XH-2P connector
704 +* (((
705 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
720 720  )))
707 +* (((
708 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
709 +)))
710 +* (((
711 +[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
712 +)))
721 721  
722 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
714 + [[image:image-20220606171726-9.png]]
723 723  
724 724  
725 725  
726 -1.
727 -11.
728 -111. ​Battery Note
718 +=== 2.11.2 ​Battery Note ===
729 729  
720 +(((
730 730  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.
722 +)))
731 731  
732 732  
733 -1.
734 -11.
735 -111. ​Replace the battery
736 736  
726 +=== 2.11.3 Replace the battery ===
727 +
728 +(((
737 737  If Battery is lower than 2.7v, user should replace the battery of LSE01.
730 +)))
738 738  
739 -
732 +(((
740 740  You can change the battery in the LSE01.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.
734 +)))
741 741  
742 -
736 +(((
743 743  The default battery pack of LSE01 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 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)
738 +)))
744 744  
745 745  
746 746  
747 -
748 -
749 -
750 750  = 3. ​Using the AT Commands =
751 751  
752 752  == 3.1 Access AT Commands ==
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