Changes for page Point to Point Communication of LT-22222-L
Last modified by Edwin Chen on 2022/11/22 09:38
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. Xiaoling1 +XWiki.Bei - Content
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... ... @@ -1,4 +1,4 @@ 1 -** Table ofContents: **1 +**Contents: ** 2 2 3 3 {{toc/}} 4 4 ... ... @@ -5,11 +5,9 @@ 5 5 6 6 7 7 8 -= 1. Overview = 8 += **1. Overview** = 9 9 10 10 ((( 11 - 12 - 13 13 Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at: 14 14 ))) 15 15 ... ... @@ -18,36 +18,34 @@ 18 18 ))) 19 19 20 20 21 -= 2. Features for this firmware = 19 += **2. Features for this firmware** = 22 22 23 -== 2.1 Point To Point == 21 +== **2.1 Point To Point** == 24 24 25 -=== 2.1.1 Overview === 23 +=== **2.1.1 Overview** === 26 26 27 27 28 28 [[image:image-20220602111219-1.png||height="472" width="972"]] 29 29 30 30 31 -=== 2.2.2 Configure === 29 +=== **2.2.2 Configure** === 32 32 33 33 34 -(% border="1" style="background-color:#f7faff; color:black; width: 360px" %)35 -|= (% style="width: 179px;" %)**A's configuration**|=(% style="width: 177px;" %)**B's configuration**36 -| (% style="width:179px" %)AT+GROUPMOD=0|(% style="width:177px" %)AT+GROUPMOD=037 -| (% style="width:179px" %)AT+TXCHS=868700000|(% style="width:177px" %)AT+TXCHS=86900000038 -| (% style="width:179px" %)AT+RXCHS=869000000|(% style="width:177px" %)AT+RXCHS=86870000039 -| (% style="width:179px" %)AT+TRIG1=2,50|(% style="width:177px" %)AT+TRIG1=2,5040 -| (% style="width:179px" %)AT+TRIG2=2,50|(% style="width:177px" %)AT+TRIG2=2,5041 -| (% style="width:179px" %)AT+DI1TODO1=2|(% style="width:177px" %)AT+DI1TODO1=242 -| (% style="width:179px" %)AT+DI1TORO1=2|(% style="width:177px" %)AT+DI1TORO1=243 -| (% style="width:179px" %)AT+DI2TODO2=2 |(% style="width:177px" %)AT+DI2TODO2=244 -| (% style="width:179px" %)AT+DI2TORO2=2|(% style="width:177px" %)AT+DI2TORO2=232 +(% border="1" style="background-color:#f7faff; color:black; width:500px" %) 33 +|=**A's configuration**|=**B's configuration** 34 +|AT+GROUPMOD=0|AT+GROUPMOD=0 35 +|AT+TXCHS=868700000|AT+TXCHS=869000000 36 +|AT+RXCHS=869000000|AT+RXCHS=868700000 37 +|AT+TRIG1=2,50|AT+TRIG1=2,50 38 +|AT+TRIG2=2,50|AT+TRIG2=2,50 39 +|AT+DI1TODO1=2|AT+DI1TODO1=2 40 +|AT+DI1TORO1=2|AT+DI1TORO1=2 41 +|AT+DI2TODO2=2 |AT+DI2TODO2=2 42 +|AT+DI2TORO2=2|AT+DI2TORO2=2 45 45 44 +=== **2.2.3 Serial port display** === 46 46 47 47 48 -=== 2.2.3 Serial port display === 49 - 50 - 51 51 (% class="wikigeneratedid" %) 52 52 [[image:image-20220602111219-2.png]] 53 53 ... ... @@ -55,23 +55,22 @@ 55 55 (% class="wikigeneratedid" %) 56 56 [[image:image-20220602111219-3.png]] 57 57 58 - 59 59 (% class="wikigeneratedid" %) 60 60 If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase. 61 61 62 62 63 -== 2.2 Point To Mult-Point == 58 +== **2.2 Point To Mult-Point ** == 64 64 65 -=== 2.2.1 Overview === 60 +=== **2.2.1 Overview** === 66 66 67 67 68 68 [[image:1654152390874-192.png]] 69 69 70 70 71 -=== 2.2.2 Configure === 66 +=== **2.2.2 Configure** === 72 72 73 73 74 -(% style="color:b lue" %)**Configuration of the TX group:**69 +(% style="color:#4f81bd" %)**Configuration of the TX group:** 75 75 76 76 AT+GROUPMOD=0,2 77 77 ... ... @@ -92,7 +92,7 @@ 92 92 AT+DI2TORO2=1 93 93 94 94 95 -(% style="color:b lue" %)**Configuration for RX group number 1:**90 +(% style="color:#4f81bd" %)**Configuration for RX group number 1:** 96 96 97 97 AT+GROUPMOD=1,1 98 98 ... ... @@ -101,7 +101,7 @@ 101 101 AT+RXCHS=868700000 102 102 103 103 104 -(% style="color:b lue" %)**Configuration for RX group number 2:**99 +(% style="color:#4f81bd" %)**Configuration for RX group number 2:** 105 105 106 106 AT+GROUPMOD=1,2 107 107 ... ... @@ -110,7 +110,7 @@ 110 110 AT+RXCHS=868700000 111 111 112 112 113 -=== 2.2.3 Serial port display === 108 +=== **2.2.3 Serial port display** === 114 114 115 115 116 116 [[image:image-20220602144747-1.png]] ... ... @@ -118,13 +118,12 @@ 118 118 119 119 [[image:image-20220602144747-2.png]] 120 120 121 - 122 122 ((( 123 123 If the TX group does not receive all the ACK replies from the RX group, it will retransmit up to 4 times, each time interval is 30 seconds, and the retransmission UplinkCounter will not increase. 124 124 ))) 125 125 126 126 127 -== 2.3 AT command == 121 +== **2.3 AT command** == 128 128 129 129 130 130 ((( ... ... @@ -225,18 +225,28 @@ 225 225 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 226 226 ))) 227 227 222 +((( 223 + 224 +))) 228 228 229 229 ((( 230 - (%style="color:blue" %)**Example 1:**227 + 231 231 ))) 232 232 233 233 ((( 231 +(% style="color:#4f81bd" %)**Example 1:** 232 +))) 233 + 234 +((( 234 234 **AT+SEND=01020304 **will send a payload of 01020304 235 235 ))) 236 236 238 +((( 239 + 240 +))) 237 237 238 238 ((( 239 -(% style="color:b lue" %)**Example 2: **243 +(% style="color:#4f81bd" %)**Example 2: ** 240 240 ))) 241 241 242 242 ((( ... ... @@ -248,28 +248,31 @@ 248 248 ))) 249 249 250 250 ((( 251 - **a=0:**falling edge;255 +a=0: falling edge; 252 252 ))) 253 253 254 254 ((( 255 - **a=1:**rising edge;259 +a=1: rising edge; 256 256 ))) 257 257 258 258 ((( 259 - **a=2:**falling edge or rising edge;263 +a=2: falling edge or rising edge; 260 260 ))) 261 261 262 262 ((( 263 - **b:**triggering time in milliseconds.267 +b: triggering time in milliseconds. 264 264 ))) 265 265 266 266 ((( 267 - **AT+TRIGx=2,50**271 +AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 268 268 ))) 269 269 274 +((( 275 + 276 +))) 270 270 271 271 ((( 272 -(% style="color:b lue" %)**Example 3: **279 +(% style="color:#4f81bd" %)**Example 3: ** 273 273 ))) 274 274 275 275 ((( ... ... @@ -292,12 +292,12 @@ 292 292 293 293 ))) 294 294 295 -(% border="1" style="background-color:#f7faff; color:black; width: 690px" %)302 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 296 296 |=(% style="width: 102px;" %)((( 297 297 Maps value 298 298 )))|=(% style="width: 331px;" %)((( 299 299 DIx to DOx 300 -)))|=(% style="width: 2 51px;" %)(((307 +)))|=(% style="width: 268px;" %)((( 301 301 DIx to ROx 302 302 ))) 303 303 |(% style="width:102px" %)((( ... ... @@ -304,7 +304,7 @@ 304 304 0 305 305 )))|(% style="width:331px" %)((( 306 306 No Action 307 -)))|(% style="width:2 51px" %)(((314 +)))|(% style="width:268px" %)((( 308 308 No Action 309 309 ))) 310 310 |(% style="width:102px" %)((( ... ... @@ -311,7 +311,7 @@ 311 311 1 312 312 )))|(% style="width:331px" %)((( 313 313 If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 314 -)))|(% style="width:2 51px" %)(((321 +)))|(% style="width:268px" %)((( 315 315 ((( 316 316 If DIx is high, control ROx to close, 317 317 ))) ... ... @@ -324,7 +324,7 @@ 324 324 2 325 325 )))|(% style="width:331px" %)((( 326 326 If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 327 -)))|(% style="width:2 51px" %)(((334 +)))|(% style="width:268px" %)((( 328 328 ((( 329 329 If DIx is high, control ROx to open, 330 330 ))) ... ... @@ -337,14 +337,12 @@ 337 337 3 338 338 )))|(% style="width:331px" %)((( 339 339 DOx state flip 340 -)))|(% style="width:2 51px" %)(((347 +)))|(% style="width:268px" %)((( 341 341 ROx state flip 342 342 ))) 343 343 344 344 ((( 345 - 346 - 347 -(% style="color:blue" %)**Example 4: ** 352 +(% style="color:#4f81bd" %)**Example 4: ** 348 348 ))) 349 349 350 350 ((( ... ... @@ -356,8 +356,10 @@ 356 356 ))) 357 357 358 358 ((( 364 +((( 359 359 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 360 360 ))) 367 +))) 361 361 362 362 ((( 363 363 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups ... ... @@ -369,47 +369,45 @@ 369 369 370 370 ((( 371 371 **AT+GROUPMOD=1,2** Set the RX group numbered 2 372 -))) 373 373 374 374 375 375 === 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) === 382 +))) 376 376 384 +**AT+TRIGx=a **Trigger transmit directly without triggering time 377 377 378 -**AT+TRIGx=a directlywithouttriggering time386 +**AT+TRIGx=a,b** Trigger transmit with triggering time threshold 379 379 380 -**AT+TRIGx=a,b** 388 +**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change. 381 381 382 -**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change. 383 383 391 +a=0: falling edge; 384 384 385 - **a=0:**falling edge;393 +a=1: rising edge; 386 386 387 - **a=1:**rising edge;395 +a=2: falling edge or rising edge; 388 388 389 - **a=2:**fallingedgeorrisingedge;397 +b: triggering time in milliseconds. 390 390 391 - **b:**triggering timeinmilliseconds.399 +c: transmit interval 392 392 393 -**c:** transmit interval 394 394 402 +**Use Case 1**: Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2) 395 395 396 - (% style="color:blue" %)**UseCase 1**(%%): Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2)404 +Command: 397 397 398 - **Command:**406 +AT+TRIG1=2,50 Falling edge or rising edge trigger, and the trigger time should exceed 50ms. 399 399 400 -**AT+TRIG1=2,50** Falling edge or rising edge trigger, and the trigger time should exceed 50ms. 401 401 409 +**Use Case 2: **Sync LT2 RO / DO status with LT1 every minute. 402 402 403 - (% style="color:blue" %)**UseCase 2: **(%%)Sync LT2 RO / DO status with LT1 every minute.411 +Command: 404 404 405 - **Command:**413 +AT+TRIG2=2,50,60 Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO. 406 406 407 -**AT+TRIG2=2,50,60** Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO. 408 408 409 - 410 410 === 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) === 411 411 412 - 413 413 AT+DI1TODO1= maps value[,latch time] 414 414 415 415 AT+DI1TORO1= maps value[,latch time] ... ... @@ -419,129 +419,135 @@ 419 419 AT+DI2TORO2= maps value[,latch time] 420 420 421 421 422 -(% border="1" style="background-color:#f7faff; color:black; width:7 74px" %)423 -| (%style="width:105px" %)**Maps value**|(% style="width:415px" %)**DIx to DOx**|(% style="width:249px" %)**DIx to ROx**424 -| (% style="width:105px" %)0|(% style="width:415px" %)No Action|(% style="width:249px" %)No Action425 -| (% style="width:105px" %)1|(% style="width:415px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:249px" %)(((427 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 428 +| **Maps value**|DIx to DOx|DIx to ROx 429 +|0|No Action|No Action 430 +|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|((( 426 426 If DIx is high, control ROx to close, 427 427 428 428 if DIx is low, control ROx to open 429 429 ))) 430 -| (% style="width:105px" %)2|(% style="width:415px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:249px" %)(((435 +|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|((( 431 431 If DIx is high, control ROx to open, 432 432 433 433 if DIx is low, control ROx to close 434 434 ))) 435 -| (% style="width:105px" %)3|(% style="width:415px" %)DOx state flip|(% style="width:249px" %)ROx state flip440 +|3|DOx state flip|ROx state flip 436 436 437 437 latch time, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one. 438 438 439 439 440 - (% style="color:blue" %)**Case1**:445 +**Case1**: 441 441 442 -AT+DI1TODO1=1 447 +AT+DI1TODO1=1 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high. 443 443 444 444 445 - (% style="color:blue" %)**Case2**:450 +**Case2**: 446 446 447 -AT+DI1TODO1=1,60 452 +AT+DI1TODO1=1,60 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then go back to original state. 448 448 449 449 450 450 === 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) === 451 451 452 - 453 453 Enable/Disbale retain Digital Output/Relay Output after power off / Power On 454 454 455 - **AT+DOROSAVE=0**459 +AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on 456 456 457 - **AT+DOROSAVE=1**461 +AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on 458 458 459 - **AT+DOROSAVE=2,a,b,c,d**463 +AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on. 460 460 461 - **a:**for DO1465 +a: for DO1 462 462 463 - **b:**for DO2467 +b: for DO2 464 464 465 - **c:**for RO1469 +c: for RO1 466 466 467 - **d:**for RO2.471 +d: for RO2. 468 468 473 +Example: 469 469 470 - **Example:**475 +AT+DOROSAVE=2,0,0,0,1 ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on. 471 471 472 -AT+DOROSAVE=2,0,0,0,1 ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on. 473 473 474 - 475 475 === 2.3.4 Control Sleep status.(Since firmware 1.3) === 476 476 477 - 478 478 DI2 can be used to set LT into sleep mode. 479 479 480 - **AT+DI2SLEEP=1**482 +AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin 481 481 482 - **AT+DI2SLEEP=0**484 +AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin 483 483 484 484 When DI2 is enabled as sleep pin, a falling trigger (with 500ms pulse) will set LT into sleep mode. A raising trigger will wake up it again. 485 485 486 486 487 -== 2.4 Data Format == 489 +== **2.4 Data Format** == 488 488 489 - 490 490 ((( 491 491 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 492 492 ))) 493 493 494 494 ((( 495 - (%style="color:blue" %)**Payload:**496 + 496 496 ))) 497 497 498 -(% border="1" style="background-color:#f7faff; color:black; width:825px" %) 499 -|=(% style="width: 102px;" %)((( 499 +((( 500 +(% style="color:#4f81bd" %)**Payload:** 501 +))) 502 + 503 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 504 +|=(% style="width: 123px;" %)((( 500 500 **Size (bytes)** 501 -)))|=(% style="width: 7 4px;" %)(((506 +)))|=(% style="width: 107px;" %)((( 502 502 1 503 -)))|=(% style="width: 7 2px;" %)(((508 +)))|=(% style="width: 107px;" %)((( 504 504 1 505 -)))|=(% style="width: 47px;" %)(((510 +)))|=(% style="width: 107px;" %)((( 506 506 1 507 -)))|=(% style="width: 83px;" %)(((512 +)))|=(% style="width: 107px;" %)((( 508 508 1 509 -)))|=(% style="width: 90px;" %)(((514 +)))|=(% style="width: 107px;" %)((( 510 510 1 511 -)))|=(% style="width: 92px;" %)(((516 +)))|=(% style="width: 107px;" %)((( 512 512 1 513 -)))|=(% style="width: 7 8px;" %)(((518 +)))|=(% style="width: 107px;" %)((( 514 514 1 515 -)))|=(% style="width: 91px;" %)(((520 +)))|=(% style="width: 107px;" %)((( 516 516 1 517 -)))|=(% style="width: 91px;" %)(((522 +)))|=(% style="width: 107px;" %)((( 518 518 1 519 519 ))) 520 -|(% style="width:1 02px" %)(((525 +|(% style="width:123px" %)((( 521 521 **Value** 522 -)))|(% style="width: 74px" %)(((527 +)))|(% style="width:38px" %)((( 523 523 address 524 -)))|(% style="width:7 2px" %)(((529 +)))|(% style="width:70px" %)((( 525 525 request 526 -)))|(% style="width: 47px" %)(((531 +)))|(% style="width:52px" %)((( 527 527 ACK 528 -)))|(% style="width: 83px" %)(((533 +)))|(% style="width:127px" %)((( 529 529 ((( 530 530 DI1& 536 +))) 537 + 538 +((( 531 531 DI1 level 532 532 ))) 533 -)))|(% style="width: 90px" %)(((541 +)))|(% style="width:101px" %)((( 534 534 DI1TODO1 535 -)))|(% style="width:9 2px" %)(((543 +)))|(% style="width:91px" %)((( 536 536 DI1TORO1 537 -)))|(% style="width: 78px" %)(((545 +)))|(% style="width:111px" %)((( 538 538 ((( 539 539 DI2& 540 -DI2 leve 541 541 ))) 542 -)))|(% style="width:91px" %)((( 549 + 550 +((( 551 +DI2 level 552 +))) 553 +)))|(% style="width:105px" %)((( 543 543 DI2TODO2 544 -)))|(% style="width: 91px" %)(((555 +)))|(% style="width:106px" %)((( 545 545 DI2TORO2 546 546 ))) 547 547 ... ... @@ -588,56 +588,62 @@ 588 588 ((( 589 589 590 590 591 -(% style="color:b lue" %)**Payload:(Since firmware 1.3)The receiver replies to the sent packet**602 +(% style="color:#4f81bd" %)**Payload:(Since firmware 1.3)The receiver replies to the sent packet** 592 592 ))) 593 593 594 -(% border="1" style="background-color:#f7faff; color:black; width:8 22px" %)595 -|=(% style="width: 97px;" %)(((596 -**Size(bytes)** 597 -)))|=(% style="width: 71px;" %)(((605 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 606 +|=(% style="width: 123px;" %)((( 607 +**Size (bytes)** 608 +)))|=(% style="width: 107px;" %)((( 598 598 1 599 -)))|=(% style="width: 70px;" %)(((610 +)))|=(% style="width: 107px;" %)((( 600 600 1 601 -)))|=(% style="width: 48px;" %)(((612 +)))|=(% style="width: 107px;" %)((( 602 602 1 603 -)))|=(% style="width: 85px;" %)(((614 +)))|=(% style="width: 107px;" %)((( 604 604 1 605 -)))|=(% style="width: 90px;" %)(((616 +)))|=(% style="width: 107px;" %)((( 606 606 1 607 -)))|=(% style="width: 88px;" %)(((618 +)))|=(% style="width: 107px;" %)((( 608 608 1 609 -)))|=(% style="width: 86px;" %)(((620 +)))|=(% style="width: 107px;" %)((( 610 610 1 611 -)))|=(% style="width: 92px;" %)(((622 +)))|=(% style="width: 107px;" %)((( 612 612 1 613 -)))|=(% style="width: 92px;" %)(((624 +)))|=(% style="width: 107px;" %)((( 614 614 1 615 615 ))) 616 -|(% style="width: 97px" %)(((627 +|(% style="width:123px" %)((( 617 617 **Value** 618 -)))|(% style="width: 71px" %)(((629 +)))|(% style="width:38px" %)((( 619 619 address 620 620 )))|(% style="width:70px" %)((( 621 621 request 622 -)))|(% style="width: 48px" %)(((633 +)))|(% style="width:52px" %)((( 623 623 ACK 624 -)))|(% style="width: 85px" %)(((635 +)))|(% style="width:127px" %)((( 625 625 ((( 626 626 DO1& 638 +))) 639 + 640 +((( 627 627 DO1 level 628 628 ))) 629 -)))|(% style="width: 90px" %)(((643 +)))|(% style="width:101px" %)((( 630 630 DI1TODO1 631 -)))|(% style="width: 88px" %)(((645 +)))|(% style="width:91px" %)((( 632 632 DI1TORO1 633 -)))|(% style="width: 86px" %)(((647 +)))|(% style="width:111px" %)((( 634 634 ((( 635 635 RO2& 650 +))) 651 + 652 +((( 636 636 RO2 level 637 637 ))) 638 -)))|(% style="width: 92px" %)(((655 +)))|(% style="width:105px" %)((( 639 639 DI2TODO2 640 -)))|(% style="width: 92px" %)(((657 +)))|(% style="width:106px" %)((( 641 641 DI2TORO2 642 642 ))) 643 643