Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual
Last modified by Mengting Qiu on 2025/02/26 15:04
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... ... @@ -5,9 +5,7 @@ 5 5 6 6 7 7 8 -**Contents:** 9 9 10 -{{toc/}} 11 11 12 12 13 13 ... ... @@ -17,9 +17,6 @@ 17 17 18 18 19 19 20 - 21 - 22 - 23 23 = 1. Introduction = 24 24 25 25 == 1.1 What is LoRaWAN Soil pH Sensor == ... ... @@ -55,6 +55,7 @@ 55 55 * IP68 rate for the Sensor Probe 56 56 * 8500mAh Battery for long term use 57 57 53 + 58 58 == 1.3 Probe Specification == 59 59 60 60 ... ... @@ -75,10 +75,13 @@ 75 75 * IP68 Protection 76 76 * Length: 3.5 meters 77 77 74 + 75 + 78 78 == 1.4 Applications == 79 79 80 80 * Smart Agriculture 81 81 80 + 82 82 == 1.5 Pin mapping and power on == 83 83 84 84 [[image:1654580482666-473.png]] ... ... @@ -113,7 +113,7 @@ 113 113 ))) 114 114 115 115 ((( 116 - (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.115 +**Step 1**: Create a device in TTN with the OTAA keys from LSPH01. 117 117 ))) 118 118 119 119 ((( ... ... @@ -150,7 +150,7 @@ 150 150 [[image:1654581517630-991.png]] 151 151 152 152 153 - (% style="color:blue" %)**Step 2**(%%): Power on LSPH01152 +**Step 2**: Power on LSPH01 154 154 155 155 156 156 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position). ... ... @@ -158,43 +158,50 @@ 158 158 [[image:image-20220607135918-2.png]] 159 159 160 160 161 - (% style="color:blue" %)**Step 3**(%%)**:** The LSPH01 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.160 +**Step 3:** The LSPH01 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. 162 162 163 163 [[image:1654581590132-631.png]] 164 164 165 165 166 166 167 -== 2.3 Uplink Payload == 166 +1. 167 +11. Uplink Payload 168 168 169 169 LSPH01 will uplink payload via LoRaWAN with below payload format: 170 170 171 + 171 171 Uplink payload includes in total 11 bytes. 173 + 172 172 173 173 Normal uplink payload: 174 174 175 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %) 176 176 |((( 177 177 **Size** 178 178 179 179 **(bytes)** 180 180 )))|**2**|**2**|**2**|**2**|**1**|**1**|**1** 181 -|**Value**|[[BAT>> ||anchor="H2.3.1BatteryInfo"]]|(((182 -[[Temperature>> ||anchor="H2.3.2DS18B20Temperaturesensor"]]182 +|**Value**|[[BAT>>path:#bat]]|((( 183 +[[Temperature>>path:#DS18B20]] 183 183 184 -[[(Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]] 185 -)))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|((( 186 -[[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]] 185 +[[( Optional )>>path:#DS18B20]] 186 +)))|[[Soil pH>>path:#Soil_Nitrogen]]|[[Soil Temperature>>path:#Soil_Phosphorus]]|((( 187 +[[Digital Interrupt>>path:#Int_pin]] 188 + 189 +[[(Optional)>>path:#Int_pin]] 187 187 )))|Reserve|((( 188 -[[Message Type>>||anchor="H2.3.6MessageType"]] 191 +[[Message>>path:#Message_Type]] 192 + 193 +[[Type>>path:#Message_Type]] 189 189 ))) 190 190 191 -[[image: 1654581735133-458.png]]196 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]] 192 192 193 193 194 194 195 -=== 2.3.1 Battery Info === 200 +1. 201 +11. 202 +111. Battery Info 196 196 197 - 198 198 Check the battery voltage for LSPH01. 199 199 200 200 Ex1: 0x0B45 = 2885mV ... ... @@ -202,12 +202,13 @@ 202 202 Ex2: 0x0B49 = 2889mV 203 203 204 204 211 +1. 212 +11. 213 +111. DS18B20 Temperature sensor 205 205 206 - ===2.3.2DS18B20Temperaturesensor ===215 +This is optional, user can connect external DS18B20 sensor to the [[+3.3v, 1-wire and GND pin>>path:#DS18B20]] . and this field will report temperature. 207 207 208 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature. 209 209 210 - 211 211 **Example**: 212 212 213 213 If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree ... ... @@ -216,35 +216,40 @@ 216 216 217 217 218 218 219 -=== 2.3.3 Soil pH === 226 +1. 227 +11. 228 +111. Soil pH 220 220 221 221 Range: 0 ~~ 14 pH 222 222 223 - **Example:**232 +Example: 224 224 225 - (% style="color:#037691" %)**234 +**0x02B7(H) = 695(D) = 6.95pH** 226 226 227 227 237 +1. 238 +11. 239 +111. Soil Temperature 228 228 229 -=== 2.3.4 Soil Temperature === 230 - 231 231 Get Soil Temperature 232 232 233 233 234 234 **Example**: 235 235 236 -If payload is: **0105H**: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree246 +If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree 237 237 238 -If payload is: **FF3FH**: (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.248 +If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees. 239 239 240 240 241 241 242 -=== 2.3.5 Interrupt Pin === 252 +1. 253 +11. 254 +111. Interrupt Pin 243 243 244 -This data field shows if this packet is generated by interrupt or not. [[Click here>> ||anchor="H3.2SetInterruptMode"]] for the hardware and software set up.256 +This data field shows if this packet is generated by interrupt or not. [[Click here>>path:#Int_mod]] for the hardware and software set up. 245 245 246 246 247 - **Example:**259 +Example: 248 248 249 249 0x00: Normal uplink packet. 250 250 ... ... @@ -251,166 +251,183 @@ 251 251 0x01: Interrupt Uplink Packet. 252 252 253 253 266 +1. 267 +11. 268 +111. Message Type 254 254 255 -=== 2.3.6 Message Type === 256 - 257 257 For a normal uplink payload, the message type is always 0x01. 258 258 259 259 Valid Message Type: 260 260 261 261 262 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %) 263 -|**Message Type Code**|**Description**|**Payload** 264 -|0x01|Normal Uplink|[[Normal Uplink Payload>>||anchor="H2.3Uplink Payload"]] 265 -|0x02|Reply configures info|[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]] 266 -|0x03|Reply Calibration Info|[[Calibration Payload>>||anchor="H2.7Calibration"]] 275 +|Message Type Code|Description|Payload 276 +|0x01|Normal Uplink|[[Normal Uplink Payload>>path:#Normal_Uplink]] 277 +|0x02|Reply configures info|[[Configure Info Payload>>path:#Configure_Info_Payload]] 278 +|0x03|Reply Calibration Info|[[Calibration Payload>>path:#Calibration_Payload]] 267 267 280 +1. 281 +11. 282 +111. Decode payload in The Things Network 268 268 269 - 270 -=== 2.3.7 Decode payload in The Things Network === 271 - 272 272 While using TTN network, you can add the payload format to decode the payload. 273 273 274 274 275 -[[image: 1654582541848-906.png]]287 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]] 276 276 277 -((( 278 278 The payload decoder function for TTN is here: 279 -))) 280 280 281 -((( 282 282 LSPH01 TTN Payload Decoder: [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Decoder/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSNPK01/Decoder/]] 283 -))) 284 284 285 285 294 +1. 295 +11. Uplink Interval 286 286 287 - ==2.4UplinkInterval==297 +The LSPH01 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: 288 288 289 - The LSPH01 by defaultuplinkthe sensordata every 20 minutes.Usercanchangehis interval byATor LoRaWANDownlink. See thislink: [[Change:Main.End.WebHome||anchor="H4.1ChangeUplinkInterval"]]299 +[[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]] 290 290 291 291 292 292 293 -== 2.5 Show Data in DataCake IoT Server == 303 +1. 304 +11. Show Data in DataCake IoT Server 294 294 295 295 [[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: 296 296 297 297 298 - (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**309 +**Step 1**: Be sure that your device is programmed and properly connected to the network at this time. 299 299 300 - (% 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:**311 +**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: 301 301 302 302 303 -[[image: 1654583683416-869.png]]314 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]] 304 304 305 305 306 -[[image: 1654583694084-878.png]]317 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]] 307 307 308 308 309 - (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**320 +Step 3: Create an account or log in Datacake. 310 310 311 - (% style="color:blue" %)**Step 4**(%%)**: Create LSPH01 product.**322 +Step 4: Create LSPH01 product. 312 312 313 -[[image: 1654583711590-413.png]]324 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]] 314 314 315 315 316 316 317 -[[image: 1654583732798-193.png]]328 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]] 318 318 319 319 320 -[[image: 1654583749683-259.png]]331 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]] 321 321 322 322 323 - (% style="color:blue" %)**Step 5**(%%)**: add payload decode**334 +Step 5: add payload decode 324 324 325 325 Download Datacake decoder from: [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Decoder/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSNPK01/Decoder/]] 326 326 327 327 328 -[[image: 1654583770974-935.png]]339 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]] 329 329 330 -[[image: 1654583781517-146.png]]341 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]] 331 331 332 332 333 -[[image: 1654583791351-557.png]]344 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]] 334 334 335 335 336 336 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices. 337 337 338 338 339 -[[image: 1654583805491-713.png]]350 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]] 340 340 341 341 342 342 343 -== 2.6 Installation and Maintain == 344 344 345 -=== 2.6.1 Before measurement === 346 346 347 -((( 356 +1. 357 +11. Installation and Maintain 358 +111. Before measurement 359 + 348 348 If the LSPH01 has more than 7 days not use or just clean the pH probe. User should put the probe inside pure water for more than 24 hours for activation. If no put in water, user need to put inside soil for more than 24 hours to ensure the measurement accuracy. 349 -))) 350 350 351 351 363 +1. 364 +11. 365 +111. Measurement 352 352 353 - === 2.6.2Measurement===367 +**Measurement the soil surface** 354 354 355 355 356 - (%style="color:#4f81bd"%)**Measurement the soil surface:**370 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] Choose the proper measuring position. Split the surface soil according to the measured deep. 357 357 358 -[[image:1654584128046-287.png]] 359 359 360 -Choose the proper measuring position. Split the surface soil according to the measured deep. 361 - 362 362 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things. 363 363 375 + 364 364 Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting. 365 365 378 + 366 366 Put soil over the probe after insert. And start to measure. 367 367 368 368 369 - (% style="color:#4f81bd" %)**Measurement inside soil:**382 +**Measurement inside soil** 370 370 384 + 385 + 371 371 Dig a hole with diameter > 20CM. 372 372 388 + 373 373 Insert the probe inside, method like measure the surface. 374 374 375 375 392 +1. 393 +11. 394 +111. Maintain Probe 395 +1111. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it. 396 +1111. After long time use (3~~ 6 months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it. 397 +1111. Probe reference electrode is also no strong, need to avoid strong force or hitting. 398 +1111. User should keep reference electrode wet while not use. 399 +1111. Avoid the probes to touch oily matter. Which will cause issue in accuracy. 400 +1111. The probe is IP68 can be put in water. 376 376 377 -=== 2.6.3 Maintain Probe === 402 +1. 403 +11. Calibration 378 378 379 -1. ((( 380 -pH probe electrode is fragile and no strong. User must avoid strong force or hitting it. 381 -))) 382 -1. ((( 383 -After long time use (3~~ 6 months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it. 384 -))) 385 -1. ((( 386 -Probe reference electrode is also no strong, need to avoid strong force or hitting. 387 -))) 388 -1. ((( 389 -User should keep reference electrode wet while not use. 390 -))) 391 -1. ((( 392 -Avoid the probes to touch oily matter. Which will cause issue in accuracy. 393 -))) 394 -1. ((( 395 -The probe is IP68 can be put in water. 405 +User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable). 396 396 397 397 398 - 399 -))) 408 +**After stable, user can use below command to calibrate.** 400 400 401 -== 2.7 Calibration == 402 402 403 -User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable). 411 +|**pH buffer solution**|**AT Command to calibrate**|**Downlink Command**|**Read Cal Value** 412 +|**4.00**|**AT+PHCAL=4**|((( 413 +**0x13 04** 404 404 405 -After stable, user can use below command to calibrate. 415 +**Reply with Calibrate payload** 416 +)))|((( 417 +**AT+PHCAL=?** 406 406 407 -[[image:image-20220607144936-3.png]] 419 +**Example 41,61,91** 420 +))) 421 +|**6.86**|**AT+PHCAL=6**|((( 422 +**0x13 06** 408 408 424 +**Reply with Calibrate payload** 425 +)))|**AT+PHCAL=?** 426 +|**9.18**|**AT+PHCAL=9**|((( 427 +**0x13 09** 409 409 429 +**Reply with Calibrate payload** 430 +)))|**AT+PHCAL=?** 431 +|**Factory Default**|**AT+PHCAL=15**|((( 432 +**0x13 15** 410 410 411 -(% style="color:#037691" %)**Calibration Payload** 434 +**Reply with Calibrate payload** 435 +)))|((( 436 +**AT+PHCAL=?** 412 412 413 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %) 438 +**Example 151** 439 +))) 440 + 441 +Calibration Payload 442 + 414 414 |((( 415 415 **Size** 416 416 ... ... @@ -425,26 +425,29 @@ 425 425 426 426 Calibrate value 427 427 )))|Reserve|((( 428 -[[Message Type>>||anchor="H2.3.6MessageType"]]457 +[[Message>>path:#Message_Type]] 429 429 459 +[[Type>>path:#Message_Type]] 460 + 430 430 Always 0x03 431 431 ))) 432 432 433 433 User can also send 0x14 downlink command to poll the current calibration payload. 434 434 435 -[[image:image-20220607145603-4.png]] 436 436 467 +|**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)** 468 +|Get Calibration Version Info|Any|14|2 469 + 437 437 * Reply to the confirmation package: 14 01 438 438 * Reply to non-confirmed packet: 14 00 439 439 473 +1. 474 +11. Frequency Plans 440 440 441 - 442 -Frequency Plans 443 - 444 444 The LSPH01 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. 445 445 446 -1. 447 -11. 478 +1. 479 +11. 448 448 111. EU863-870 (EU868) 449 449 450 450 Uplink: ... ... @@ -475,8 +475,8 @@ 475 475 869.525 - SF9BW125 (RX2 downlink only) 476 476 477 477 478 -1. 479 -11. 510 +1. 511 +11. 480 480 111. US902-928(US915) 481 481 482 482 Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document. ... ... @@ -490,8 +490,8 @@ 490 490 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 491 491 * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include) 492 492 493 -1. 494 -11. 525 +1. 526 +11. 495 495 111. CN470-510 (CN470) 496 496 497 497 Used in China, Default use CHE=1 ... ... @@ -536,8 +536,8 @@ 536 536 505.3 - SF12BW125 (RX2 downlink only) 537 537 538 538 539 -1. 540 -11. 571 +1. 572 +11. 541 541 111. AU915-928(AU915) 542 542 543 543 Frequency band as per definition in LoRaWAN 1.0.3 Regional document. ... ... @@ -551,8 +551,8 @@ 551 551 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 552 552 * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include) 553 553 554 -1. 555 -11. 586 +1. 587 +11. 556 556 111. AS920-923 & AS923-925 (AS923) 557 557 558 558 **Default Uplink channel:** ... ... @@ -604,8 +604,8 @@ 604 604 923.2 - SF10BW125 (RX2) 605 605 606 606 607 -1. 608 -11. 639 +1. 640 +11. 609 609 111. KR920-923 (KR920) 610 610 611 611 Default channel: ... ... @@ -641,8 +641,8 @@ 641 641 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125) 642 642 643 643 644 -1. 645 -11. 676 +1. 677 +11. 646 646 111. IN865-867 (IN865) 647 647 648 648 Uplink: ... ... @@ -661,7 +661,7 @@ 661 661 866.550 - SF10BW125 (RX2) 662 662 663 663 664 -1. 696 +1. 665 665 11. LED Indicator 666 666 667 667 The LSPH01 has an internal LED which is to show the status of different state. ... ... @@ -670,7 +670,7 @@ 670 670 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected. 671 671 * Blink once when device transmit a packet. 672 672 673 -1. 705 +1. 674 674 11. Firmware Change Log 675 675 676 676 **Firmware download link:** ... ... @@ -716,7 +716,7 @@ 716 716 These commands only valid for LSPH01, as below: 717 717 718 718 719 -1. 751 +1. 720 720 11. Set Transmit Interval Time 721 721 722 722 Feature: Change LoRaWAN End Node Transmit Interval. ... ... @@ -746,7 +746,7 @@ 746 746 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 747 747 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 748 748 749 -1. 781 +1. 750 750 11. Set Interrupt Mode 751 751 752 752 Feature, Set Interrupt mode for GPIO_EXIT. ... ... @@ -779,7 +779,7 @@ 779 779 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 780 780 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 781 781 782 -1. 814 +1. 783 783 11. Calibrate Sensor 784 784 785 785 Detail See [[Calibration Guide>>path:#Calibration]] for the user of 0x13 and 0x14 downlink commands ... ... @@ -786,7 +786,7 @@ 786 786 787 787 788 788 789 -1. 821 +1. 790 790 11. Get Firmware Version Info 791 791 792 792 Feature: use downlink to get firmware version. ... ... @@ -895,7 +895,7 @@ 895 895 LSPH01: 2.45v ~~ 3.6v 896 896 897 897 898 -1. 930 +1. 899 899 11. Replace Battery 900 900 901 901 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery. ... ... @@ -904,7 +904,7 @@ 904 904 905 905 906 906 907 -1. 939 +1. 908 908 11. Power Consumption Analyze 909 909 910 910 Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval. ... ... @@ -944,14 +944,14 @@ 944 944 945 945 946 946 1. 947 -11. 979 +11. 948 948 111. Battery Note 949 949 950 950 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. 951 951 952 952 953 -1. 954 -11. 985 +1. 986 +11. 955 955 111. Replace the battery 956 956 957 957 You can change the battery in the LSPH01.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. ... ... @@ -1040,4 +1040,3 @@ 1040 1040 1041 1041 [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]] 1042 1042 1043 -
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