Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Karry Zhuang on 2025/03/06 16:34
Summary
-
Page properties (1 modified, 0 added, 0 removed)
-
Attachments (0 modified, 8 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -76,8 +76,6 @@ 76 76 * Automatic RF Sense and CAD with ultra-fast AFC. 77 77 * Packet engine up to 256 bytes with CRC. 78 78 79 - 80 - 81 81 == 1.3 Features == 82 82 83 83 * LoRaWAN Class A & Class C protocol (default Class C) ... ... @@ -89,8 +89,6 @@ 89 89 * Support Modbus protocol 90 90 * Support Interrupt uplink (Since hardware version v1.2) 91 91 92 - 93 - 94 94 == 1.4 Applications == 95 95 96 96 * Smart Buildings & Home Automation ... ... @@ -100,8 +100,6 @@ 100 100 * Smart Cities 101 101 * Smart Factory 102 102 103 - 104 - 105 105 == 1.5 Firmware Change log == 106 106 107 107 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]] ... ... @@ -132,6 +132,8 @@ 132 132 ))) 133 133 134 134 [[image:1653268091319-405.png]] 129 + 130 + 135 135 ))) 136 136 137 137 = 3. Operation Mode = ... ... @@ -140,6 +140,8 @@ 140 140 141 141 ((( 142 142 The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA. 139 + 140 + 143 143 ))) 144 144 145 145 == 3.2 Example to join LoRaWAN network == ... ... @@ -148,10 +148,15 @@ 148 148 149 149 [[image:1653268155545-638.png||height="334" width="724"]] 150 150 149 + 151 151 ((( 151 +((( 152 152 The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below: 153 +))) 153 153 155 +((( 154 154 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively. 157 +))) 155 155 156 156 [[image:1653268227651-549.png||height="592" width="720"]] 157 157 ... ... @@ -203,6 +203,7 @@ 203 203 204 204 [[image:1652953568895-172.png||height="232" width="724"]] 205 205 209 + 206 206 == 3.3 Configure Commands to read data == 207 207 208 208 ((( ... ... @@ -212,6 +212,8 @@ 212 212 213 213 ((( 214 214 (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1 219 + 220 + 215 215 ))) 216 216 ))) 217 217 ... ... @@ -219,19 +219,19 @@ 219 219 220 220 To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are: 221 221 222 -(% border="1" style="background-color:#ffffcc; color:green; width:7 95px" %)223 -|((( 228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %) 229 +|(% style="width:128px" %)((( 224 224 **AT Commands** 225 -)))|(% style="width: 285px" %)(((231 +)))|(% style="width:305px" %)((( 226 226 **Description** 227 -)))|(% style="width:34 7px" %)(((233 +)))|(% style="width:346px" %)((( 228 228 **Example** 229 229 ))) 230 -|((( 236 +|(% style="width:128px" %)((( 231 231 AT+BAUDR 232 -)))|(% style="width: 285px" %)(((238 +)))|(% style="width:305px" %)((( 233 233 Set the baud rate (for RS485 connection). Default Value is: 9600. 234 -)))|(% style="width:34 7px" %)(((240 +)))|(% style="width:346px" %)((( 235 235 ((( 236 236 AT+BAUDR=9600 237 237 ))) ... ... @@ -240,11 +240,11 @@ 240 240 Options: (1200,2400,4800,14400,19200,115200) 241 241 ))) 242 242 ))) 243 -|((( 249 +|(% style="width:128px" %)((( 244 244 AT+PARITY 245 -)))|(% style="width: 285px" %)(((251 +)))|(% style="width:305px" %)((( 246 246 Set UART parity (for RS485 connection) 247 -)))|(% style="width:34 7px" %)(((253 +)))|(% style="width:346px" %)((( 248 248 ((( 249 249 AT+PARITY=0 250 250 ))) ... ... @@ -253,9 +253,9 @@ 253 253 Option: 0: no parity, 1: odd parity, 2: even parity 254 254 ))) 255 255 ))) 256 -|((( 262 +|(% style="width:128px" %)((( 257 257 AT+STOPBIT 258 -)))|(% style="width: 285px" %)(((264 +)))|(% style="width:305px" %)((( 259 259 ((( 260 260 Set serial stopbit (for RS485 connection) 261 261 ))) ... ... @@ -263,7 +263,7 @@ 263 263 ((( 264 264 265 265 ))) 266 -)))|(% style="width:34 7px" %)(((272 +)))|(% style="width:346px" %)((( 267 267 ((( 268 268 AT+STOPBIT=0 for 1bit 269 269 ))) ... ... @@ -298,77 +298,34 @@ 298 298 === 3.3.3 Configure read commands for each sampling === 299 299 300 300 ((( 301 -RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink. 302 -))) 307 +During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload. 303 303 304 -((( 305 -During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload. 306 -))) 307 - 308 -((( 309 309 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload. 310 -))) 311 311 312 -((( 313 313 This section describes how to achieve above goals. 314 -))) 315 315 316 -((( 317 -During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads. 318 -))) 313 +During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads. 319 319 320 -((( 321 -**Command from RS485-BL to Sensor:** 322 -))) 323 323 324 -((( 325 -RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar. 326 -))) 316 +**Each RS485 commands include two parts:** 327 327 328 -((( 329 -**Handle return from sensors to RS485-BL**: 330 -))) 318 +~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar. 331 331 332 -((( 333 -After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands** 334 -))) 320 +2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar. 335 335 336 -* ((( 337 -**AT+DATACUT** 338 -))) 322 +3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms 339 339 340 -((( 341 -When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command. 342 -))) 343 343 344 -* ((( 345 -**AT+SEARCH** 346 -))) 347 - 348 -((( 349 -When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string. 350 -))) 351 - 352 -((( 353 -**Define wait timeout:** 354 -))) 355 - 356 -((( 357 -Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms 358 -))) 359 - 360 -((( 361 361 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**. 362 -))) 363 363 364 -**Examples:** 365 365 366 366 Below are examples for the how above AT Commands works. 367 367 368 -**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is: 369 369 370 -(% border="1" class="table-bordered" %) 371 -|((( 331 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is: 332 + 333 +(% border="1" style="background-color:#4bacc6; color:white; width:499px" %) 334 +|(% style="width:496px" %)((( 372 372 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m** 373 373 374 374 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent** ... ... @@ -376,49 +376,15 @@ 376 376 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command** 377 377 ))) 378 378 379 -((( 380 380 For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually. 381 -))) 382 382 383 -((( 384 -In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same. 385 -))) 344 +In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same. 386 386 387 -((( 388 -**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx. 389 -))) 390 390 391 -(% border="1" class="table-bordered" %) 392 -|((( 393 -**AT+SEARCHx=aa,xx xx xx xx xx** 394 - 395 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode** 396 -* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix** 397 - 398 - 399 -))) 400 - 401 -**Examples:** 402 - 403 -~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49 404 - 405 -If we set AT+SEARCH1=1,1E 56 34. (max 5 bytes for prefix) 406 - 407 -The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49** 408 - 409 -[[image:1653269403619-508.png]] 410 - 411 -2. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49 412 - 413 -If we set AT+SEARCH1=2, 1E 56 34+31 00 49 414 - 415 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30** 416 - 417 -[[image:1653269438444-278.png]] 418 - 419 419 **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes. 420 420 421 -|((( 349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %) 350 +|(% style="width:722px" %)((( 422 422 **AT+DATACUTx=a,b,c** 423 423 424 424 * **a: length for the return of AT+COMMAND** ... ... @@ -426,48 +426,37 @@ 426 426 * **c: define the position for valid value. ** 427 427 ))) 428 428 429 -Examples: 358 +**Examples:** 430 430 431 431 * Grab bytes: 432 432 433 -[[image: 1653269551753-223.png||height="311" width="717"]]362 +[[image:image-20220602153621-1.png]] 434 434 364 + 435 435 * Grab a section. 436 436 437 -[[image: 1653269568276-930.png||height="325" width="718"]]367 +[[image:image-20220602153621-2.png]] 438 438 369 + 439 439 * Grab different sections. 440 440 441 -[[image: 1653269593172-426.png||height="303" width="725"]]372 +[[image:image-20220602153621-3.png]] 442 442 443 -(% style="color:red" %)**Note:** 374 + 375 +))) 444 444 445 -AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0. 446 - 447 -Example: 448 - 449 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0 450 - 451 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34 452 - 453 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5 454 - 455 -(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49 456 - 457 -(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49 458 - 459 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36 460 - 461 -[[image:1653269618463-608.png]] 462 - 463 463 === 3.3.4 Compose the uplink payload === 464 464 465 465 ((( 466 466 Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.** 381 + 382 + 467 467 ))) 468 468 469 469 ((( 470 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0** 386 +(% style="color:#037691" %)**Examples: AT+DATAUP=0** 387 + 388 + 471 471 ))) 472 472 473 473 ((( ... ... @@ -488,8 +488,10 @@ 488 488 489 489 [[image:1653269759169-150.png||height="513" width="716"]] 490 490 491 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1** 492 492 410 +(% style="color:#037691" %)**Examples: AT+DATAUP=1** 411 + 412 + 493 493 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**. 494 494 495 495 Final Payload is ... ... @@ -496,138 +496,98 @@ 496 496 497 497 (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA** 498 498 499 -1. Battery Info (2 bytes): Battery voltage 500 -1. PAYVER (1 byte): Defined by AT+PAYVER 501 -1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling. 502 -1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT) 503 -1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes 419 +1. PAYVER: Defined by AT+PAYVER 420 +1. PAYLOAD COUNT: Total how many uplinks of this sampling. 421 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT) 422 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes 504 504 505 -[[image: 1653269916228-732.png||height="433" width="711"]]424 +[[image:image-20220602155039-4.png]] 506 506 507 507 508 -So totally there will be 3 uplinks for this sampling, each uplink include s6bytes DATA427 +So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA 509 509 510 -DATA1=RETURN1 Valid Value =(% style="background-color:green;color:white"%)20 20 0a 33 90 41429 +DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa** 511 511 512 -DATA2= 1^^st^^ ~~6^^th^^ byte of Valid value of RETURN10=(%style="background-color:green;color:white"%)02aa05810a20431 +DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d** 513 513 514 -DATA3= 7^^th^^~~ 11^^th^^ bytes of Valid value of RETURN10(%style="background-color:green; color:white" %)20 20 20 2d30433 +DATA3=the rest of Valid value of RETURN10= **30** 515 515 516 -Below are the uplink payloads: 517 517 518 - [[image:1653270130359-810.png]]436 +(% style="color:red" %)Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below: 519 519 438 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink. 520 520 521 - (%style="color:red"%)**Notice:theMaxbytes is accordingto the maxsupportbytesin differentFrequencyBands forlowest SF.As below:**440 + * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink. 522 522 523 - ~*AU915/AS923bands,if UplinkDwell time=0, max51 bytes( so 51 -5 = 46 max valid date)442 + * For US915 band, max 11 bytes for each uplink. 524 524 525 - * AU915/AS923bands,if UplinkDwell time=1, max 11bytes for each uplink( so 11 -5 = 6 max valid date).444 + ~* For all other bands: max 51 bytes for each uplink. 526 526 527 - * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date). 528 528 529 - ~* Forallotherbands: max 51 bytes for eachuplink( so 51 -5 = 46 max valid date).447 +Below are the uplink payloads: 530 530 449 +[[image:1654157178836-407.png]] 450 + 451 + 531 531 === 3.3.5 Uplink on demand === 532 532 533 -Except uplink periodically, RS485- BL is able to uplink on demand. The server sendsdownlink command to RS485-BL and RS485 will uplink data base on the command.454 +Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command. 534 534 535 535 Downlink control command: 536 536 537 - [[0x08 command>>path:#downlink_08]]:Poll an uplink with current command set in RS485-BL.458 +**0x08 command**: Poll an uplink with current command set in RS485-LN. 538 538 539 - [[0xA8 command>>path:#downlink_A8]]:Send a command to RS485-BL and uplink the output from sensors.460 +**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors. 540 540 541 541 542 542 543 -1. 544 -11. 545 -111. Uplink on Interrupt 464 +=== 3.3.6 Uplink on Interrupt === 546 546 547 - Put theinterruptsensorbetween3.3v_outand GPIOext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]466 +RS485-LN support external Interrupt uplink since hardware v1.2 release. 548 548 549 - AT+INTMOD=0 DisableInterrupt468 +[[image:1654157342174-798.png]] 550 550 551 - AT+INTMOD=1Interrupt triggerbyrising orfallingedge.470 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet. 552 552 553 -AT+INTMOD=2 Interrupt trigger by falling edge. ( Default Value) 554 554 555 - AT+INTMOD=3Interrupt trigger by risingedge.473 +== 3.4 Uplink Payload == 556 556 557 - 558 -1. 559 -11. Uplink Payload 560 - 561 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands** 562 -|Value|((( 475 +(% border="1" style="background-color:#4bacc6; color:white; width:734px" %) 476 +|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands** 477 +|Value|(% style="width:120px" %)((( 563 563 Battery(mV) 564 564 565 565 & 566 566 567 567 Interrupt _Flag 568 -)))|((( 483 +)))|(% style="width:116px" %)((( 569 569 PAYLOAD_VER 570 570 571 571 572 -)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server. 487 +)))|(% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server. 573 573 574 574 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors. 575 575 576 576 577 -fu nctionDecoder(bytes,port){492 +== 3.5 Configure RS485-BL via AT or Downlink == 578 578 579 - ~/~/Payload Formatsof RS485-BL Deceive494 +User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands 580 580 581 -re turn{496 +There are two kinds of Commands: 582 582 583 - ~/~/Battery,units:V498 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]] 584 584 585 - BatV:((bytes[0]<<8|bytes[1])&0x7fff)/1000,500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 586 586 587 - ~/~/GPIO_EXTI 588 588 589 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE", 590 590 591 - ~/~/payloadofversion504 +=== 3.5.1 Common Commands === 592 592 593 - Pay_ver:bytes[2],506 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]] 594 594 595 - }; 596 596 597 - }509 +=== 3.5.2 Sensor related commands: === 598 598 599 - 600 - 601 - 602 - 603 - 604 - 605 -TTN V3 uplink screen shot. 606 - 607 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]] 608 - 609 -1. 610 -11. Configure RS485-BL via AT or Downlink 611 - 612 -User can configure RS485-BL via [[AT Commands >>path:#_Using_the_AT]]or LoRaWAN Downlink Commands 613 - 614 -There are two kinds of Commands: 615 - 616 -* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands 617 - 618 -* **Sensor Related Commands**: These commands are special designed for RS485-BL. User can see these commands below: 619 - 620 -1. 621 -11. 622 -111. Common Commands: 623 - 624 -They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]] 625 - 626 - 627 -1. 628 -11. 629 -111. Sensor related commands: 630 - 631 631 ==== Choose Device Type (RS485 or TTL) ==== 632 632 633 633 RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
- 1654157178836-407.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +179.9 KB - Content
- 1654157342174-798.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +31.9 KB - Content
- 1654158783574-851.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +40.6 KB - Content
- image-20220602153621-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +23.4 KB - Content
- image-20220602153621-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +22.2 KB - Content
- image-20220602153621-3.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +22.3 KB - Content
- image-20220602155039-4.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +24.6 KB - Content
- image-20220602163333-5.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +48.2 KB - Content