Changes for page Point to Point Communication of LT-22222-L
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... ... @@ -1,1 +1,1 @@ 1 -Point to Point Communication of LT-22222-L 1 + Point to Point Communication of LT-22222-L - Author
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. Edwin1 +XWiki.Xiaoling - Content
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... ... @@ -1,47 +1,46 @@ 1 -**Table of Contents: ** 2 - 1 +{{box cssClass="floatinginfobox" title="**Contents**"}} 3 3 {{toc/}} 3 +{{/box}} 4 4 5 += **1. Overview** = 5 5 6 - 7 - 8 -= 1. Overview = 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: 9 +))) 14 14 15 - * [[Source Code>>https://github.com/dragino/LT-22222-L]].16 - *[[Firmware>>https://github.com/dragino/LT-22222-L/releases]].11 +((( 12 +[[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]]. 17 17 ))) 18 18 19 -= 2.Featuresfor this firmware=15 +== == 20 20 21 -= =2.1PointToPoint ==17 += **2. Features for this firmware** = 22 22 23 -=== 2.1.1 Overview === 24 24 20 +== **2.1 Point To Point** == 25 25 22 +=== **2.1.1 Overview** === 23 + 26 26 [[image:image-20220602111219-1.png||height="472" width="972"]] 27 27 28 28 29 -=== 2.2.2 Configure === 27 +=== **2.2.2 Configure** === 30 30 29 +(% border="1" style="background-color:#f7faff; color:black; width:500px" %) 30 +|=**A's configuration**|=**B's configuration** 31 +|AT+GROUPMOD=0|AT+GROUPMOD=0 32 +|AT+TXCHS=868700000|AT+TXCHS=869000000 33 +|AT+RXCHS=869000000|AT+RXCHS=868700000 34 +|AT+TRIG1=2,50|AT+TRIG1=2,50 35 +|AT+TRIG2=2,50|AT+TRIG2=2,50 36 +|AT+DI1TODO1=2|AT+DI1TODO1=2 37 +|AT+DI1TORO1=2|AT+DI1TORO1=2 38 +|AT+DI2TODO2=2 |AT+DI2TODO2=2 39 +|AT+DI2TORO2=2|AT+DI2TORO2=2 31 31 32 -(% border="1" style="background-color:#f7faff; color:black; width:360px" %) 33 -|=(% style="width: 179px;" %)**A's configuration**|=(% style="width: 177px;" %)**B's configuration** 34 -|(% style="width:179px" %)AT+GROUPMOD=0|(% style="width:177px" %)AT+GROUPMOD=0 35 -|(% style="width:179px" %)AT+TXCHS=868700000|(% style="width:177px" %)AT+TXCHS=869000000 36 -|(% style="width:179px" %)AT+RXCHS=869000000|(% style="width:177px" %)AT+RXCHS=868700000 37 -|(% style="width:179px" %)AT+TRIG1=2,50|(% style="width:177px" %)AT+TRIG1=2,50 38 -|(% style="width:179px" %)AT+TRIG2=2,50|(% style="width:177px" %)AT+TRIG2=2,50 39 -|(% style="width:179px" %)AT+DI1TODO1=2|(% style="width:177px" %)AT+DI1TODO1=2 40 -|(% style="width:179px" %)AT+DI1TORO1=2|(% style="width:177px" %)AT+DI1TORO1=2 41 -|(% style="width:179px" %)AT+DI2TODO2=2 |(% style="width:177px" %)AT+DI2TODO2=2 42 -|(% style="width:179px" %)AT+DI2TORO2=2|(% style="width:177px" %)AT+DI2TORO2=2 43 43 44 -=== 2.2.3 Serial port display === 42 +(% class="wikigeneratedid" %) 43 +2.2.3 Serial port display 45 45 46 46 47 47 (% class="wikigeneratedid" %) ... ... @@ -51,76 +51,23 @@ 51 51 (% class="wikigeneratedid" %) 52 52 [[image:image-20220602111219-3.png]] 53 53 54 - 55 55 (% class="wikigeneratedid" %) 56 56 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. 57 57 58 58 59 -== 2.2 Point To Mult-Point == 60 60 61 -== =2.2.1Overview===58 +== **2.2 Point To Mult-Point ** == 62 62 63 63 64 -[[image:1654152390874-192.png]] 65 65 66 66 67 -=== 2.2.2 Configure === 68 68 69 - 70 -(% style="color:blue" %)**Configuration of the TX group:** 71 - 72 -AT+GROUPMOD=0,2 73 - 74 -AT+TXCHS=868700000 75 - 76 -AT+RXCHS=869000000 77 - 78 -AT+TRIG1=2,50 79 - 80 -AT+TRIG2=2,50 81 - 82 -AT+DI1TODO1=1 83 - 84 -AT+DI1TORO1=1 85 - 86 -AT+DI2TODO2=1 87 - 88 -AT+DI2TORO2=1 89 - 90 - 91 -(% style="color:blue" %)**Configuration for RX group number 1:** 92 - 93 -AT+GROUPMOD=1,1 94 - 95 -AT+TXCHS=869000000 96 - 97 -AT+RXCHS=868700000 98 - 99 - 100 -(% style="color:blue" %)**Configuration for RX group number 2:** 101 - 102 -AT+GROUPMOD=1,2 103 - 104 -AT+TXCHS=869000000 105 - 106 -AT+RXCHS=868700000 107 - 108 - 109 -=== 2.2.3 Serial port display === 110 - 111 - 112 -[[image:image-20220602144747-1.png]] 113 - 114 - 115 -[[image:image-20220602144747-2.png]] 116 - 117 - 118 118 ((( 119 - Ifthe 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.65 + 120 120 ))) 121 121 122 122 123 -== 2.3 AT command == 69 +== **2.3 AT command** == 124 124 125 125 126 126 ((( ... ... @@ -221,18 +221,28 @@ 221 221 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 222 222 ))) 223 223 170 +((( 171 + 172 +))) 224 224 225 225 ((( 226 - (%style="color:blue" %)**Example 1:**175 + 227 227 ))) 228 228 229 229 ((( 179 +(% style="color:#4f81bd" %)**Example 1:** 180 +))) 181 + 182 +((( 230 230 **AT+SEND=01020304 **will send a payload of 01020304 231 231 ))) 232 232 186 +((( 187 + 188 +))) 233 233 234 234 ((( 235 -(% style="color:b lue" %)**Example 2: **191 +(% style="color:#4f81bd" %)**Example 2: ** 236 236 ))) 237 237 238 238 ((( ... ... @@ -244,28 +244,31 @@ 244 244 ))) 245 245 246 246 ((( 247 - **a=0:**falling edge;203 +a=0: falling edge; 248 248 ))) 249 249 250 250 ((( 251 - **a=1:**rising edge;207 +a=1: rising edge; 252 252 ))) 253 253 254 254 ((( 255 - **a=2:**falling edge or rising edge;211 +a=2: falling edge or rising edge; 256 256 ))) 257 257 258 258 ((( 259 - **b:**triggering time in milliseconds.215 +b: triggering time in milliseconds. 260 260 ))) 261 261 262 262 ((( 263 - **AT+TRIGx=2,50**219 +AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 264 264 ))) 265 265 222 +((( 223 + 224 +))) 266 266 267 267 ((( 268 -(% style="color:b lue" %)**Example 3: **227 +(% style="color:#4f81bd" %)**Example 3: ** 269 269 ))) 270 270 271 271 ((( ... ... @@ -288,12 +288,12 @@ 288 288 289 289 ))) 290 290 291 -(% border="1" style="background-color:#f7faff; color:black; width: 690px" %)250 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 292 292 |=(% style="width: 102px;" %)((( 293 293 Maps value 294 294 )))|=(% style="width: 331px;" %)((( 295 295 DIx to DOx 296 -)))|=(% style="width: 2 51px;" %)(((255 +)))|=(% style="width: 268px;" %)((( 297 297 DIx to ROx 298 298 ))) 299 299 |(% style="width:102px" %)((( ... ... @@ -300,7 +300,7 @@ 300 300 0 301 301 )))|(% style="width:331px" %)((( 302 302 No Action 303 -)))|(% style="width:2 51px" %)(((262 +)))|(% style="width:268px" %)((( 304 304 No Action 305 305 ))) 306 306 |(% style="width:102px" %)((( ... ... @@ -307,7 +307,7 @@ 307 307 1 308 308 )))|(% style="width:331px" %)((( 309 309 If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 310 -)))|(% style="width:2 51px" %)(((269 +)))|(% style="width:268px" %)((( 311 311 ((( 312 312 If DIx is high, control ROx to close, 313 313 ))) ... ... @@ -320,7 +320,7 @@ 320 320 2 321 321 )))|(% style="width:331px" %)((( 322 322 If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 323 -)))|(% style="width:2 51px" %)(((282 +)))|(% style="width:268px" %)((( 324 324 ((( 325 325 If DIx is high, control ROx to open, 326 326 ))) ... ... @@ -333,14 +333,12 @@ 333 333 3 334 334 )))|(% style="width:331px" %)((( 335 335 DOx state flip 336 -)))|(% style="width:2 51px" %)(((295 +)))|(% style="width:268px" %)((( 337 337 ROx state flip 338 338 ))) 339 339 340 340 ((( 341 - 342 - 343 -(% style="color:blue" %)**Example 4: ** 300 +(% style="color:#4f81bd" %)**Example 4: ** 344 344 ))) 345 345 346 346 ((( ... ... @@ -352,8 +352,10 @@ 352 352 ))) 353 353 354 354 ((( 312 +((( 355 355 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 356 356 ))) 315 +))) 357 357 358 358 ((( 359 359 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups ... ... @@ -368,288 +368,73 @@ 368 368 ))) 369 369 370 370 371 -== =2.3.1TRIG command is configured inthe transmitLT. (LT1)(Since firmware1.3.2)===330 +== **2.4 Data Format** == 372 372 373 - 374 -**AT+TRIGx=a **Trigger transmit directly without triggering time 375 - 376 -**AT+TRIGx=a,b** Trigger transmit with triggering time threshold 377 - 378 -**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change. 379 - 380 - 381 -**a=0:** falling edge; 382 - 383 -**a=1:** rising edge; 384 - 385 -**a=2:** falling edge or rising edge; 386 - 387 -**b:** triggering time in milliseconds. 388 - 389 -**c:** transmit interval 390 - 391 - 392 -(% style="color:blue" %)**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) 393 - 394 -**Command:** 395 - 396 -**AT+TRIG1=2,50** Falling edge or rising edge trigger, and the trigger time should exceed 50ms. 397 - 398 - 399 -(% style="color:blue" %)**Use Case 2: **(%%)Sync LT2 RO / DO status with LT1 every minute. 400 - 401 -**Command:** 402 - 403 -**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. After power off, power on, LT1 will send trigger without falling/rising edge, so the DI changes during power off will be sync as well. 404 - 405 - 406 -=== 2.3.2 RO/DO is configured in the transmit LT. (LT1) and receiver LT (LT2)(Since firmware 1.3.2) === 407 - 408 - 409 -(% style="color:red" %)Notice:(%%) LT1 MUST have a AT+DIxTODOx commands to send out the trigger. If LT2 has AT+DIxTOROx configured, LT2 will follow its configured and ignore LT1's AT+DIxTOROx settings. 410 - 411 - 412 -AT+DI1TODO1= maps value[,latch time, timeout_state] 413 - 414 -AT+DI1TORO1= maps value[,latch time, timeout_state] 415 - 416 -AT+DI2TODO2= maps value[,latch time, timeout_state] 417 - 418 -AT+DI2TORO2= maps value[,latch time, timeout_state] 419 - 420 - 421 -(% border="1" style="background-color:#f7faff; color:black; width:774px" %) 422 -|(% style="width:105px" %) **Maps value**|(% style="width:415px" %)**DIx to DOx**|(% style="width:249px" %)**DIx to ROx** 423 -|(% style="width:105px" %)0|(% style="width:415px" %)No Action|(% style="width:249px" %)No Action 424 -|(% 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" %)((( 425 -If DIx is high, control ROx to close, 426 - 427 -if DIx is low, control ROx to open 332 +((( 333 +8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 428 428 ))) 429 -|(% 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" %)((( 430 -If DIx is high, control ROx to open, 431 431 432 -if DIx is low, control ROx to close 433 -))) 434 -|(% style="width:105px" %)3|(% style="width:415px" %)DOx state flip|(% style="width:249px" %)ROx state flip 435 - 436 -**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. 437 - 438 - 439 -**Timeout_State**: 440 - 441 -0: **No change** after timeout 442 - 443 -1: Change to **DO:0** or **RO: Open** after timeout 444 - 445 -2: Change to **DO:1** or **RO: Close** after timeout 446 - 447 -3: Change **back to state** before last trigger arrive. 448 - 449 - 450 -(% style="color:blue" %)**Case1**: 451 - 452 -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. 453 - 454 - 455 -(% style="color:blue" %)**Case2**: 456 - 457 -AT+DI1TODO1=1,60,1 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then change to open. 458 - 459 - 460 -=== 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) === 461 - 462 - 463 -Enable/Disbale retain Digital Output/Relay Output after power off / Power On 464 - 465 -**AT+DOROSAVE=0** ~/~/ Disable Retain after power off/on 466 - 467 -**AT+DOROSAVE=1** ~/~/ Enable Retain after power off/on 468 - 469 -**AT+DOROSAVE=2,a,b,c,d** ~/~/ set DO/RO port to default state after power on. 470 - 471 -**a: **for DO1 472 - 473 -**b:** for DO2 474 - 475 -**c: **for RO1 476 - 477 -**d:** for RO2. 478 - 479 - 480 -**Example:** 481 - 482 -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. 483 - 484 - 485 -=== 2.3.4 Control Sleep status.(Since firmware 1.3) === 486 - 487 - 488 -DI2 can be used to set LT into sleep mode. 489 - 490 -**AT+DI2SLEEP=1** ~/~/ Enable DI2 as Sleep pin 491 - 492 -**AT+DI2SLEEP=0** ~/~/ Disable DI2 as Sleep pin 493 - 494 -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. 495 - 496 -In sleep mode, DORO will keep its initial state if AT+DOROSAVE=2, otherwise DORO will be in OFF state 497 - 498 - 499 -== 2.4 Data Format == 500 - 501 - 502 502 ((( 503 - 8bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum337 + 504 504 ))) 505 505 506 506 ((( 507 -(% style="color:b lue" %)**Payload:Payload triggered by TDC or DI**341 +(% style="color:#4f81bd" %)**Payload:** 508 508 ))) 509 509 510 -(% border="1" style="background-color:#f7faff; color:black; width:8 25px" %)511 -|=(% style="width: 1 02px;" %)(((344 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 345 +|=(% style="width: 123px;" %)((( 512 512 **Size (bytes)** 513 -)))|=(% style="width: 7 4px;" %)(((347 +)))|=(% style="width: 107px;" %)((( 514 514 1 515 -)))|=(% style="width: 7 2px;" %)(((349 +)))|=(% style="width: 107px;" %)((( 516 516 1 517 -)))|=(% style="width: 47px;" %)(((351 +)))|=(% style="width: 107px;" %)((( 518 518 1 519 -)))|=(% style="width: 83px;" %)(((353 +)))|=(% style="width: 107px;" %)((( 520 520 1 521 -)))|=(% style="width: 90px;" %)(((355 +)))|=(% style="width: 107px;" %)((( 522 522 1 523 -)))|=(% style="width: 92px;" %)(((357 +)))|=(% style="width: 107px;" %)((( 524 524 1 525 -)))|=(% style="width: 7 8px;" %)(((359 +)))|=(% style="width: 107px;" %)((( 526 526 1 527 -)))|=(% style="width: 91px;" %)(((361 +)))|=(% style="width: 107px;" %)((( 528 528 1 529 -)))|=(% style="width: 91px;" %)(((363 +)))|=(% style="width: 107px;" %)((( 530 530 1 531 531 ))) 532 -|(% style="width:1 02px" %)(((366 +|(% style="width:123px" %)((( 533 533 **Value** 534 -)))|(% style="width: 74px" %)(((368 +)))|(% style="width:38px" %)((( 535 535 address 536 -)))|(% style="width:7 2px" %)(((370 +)))|(% style="width:70px" %)((( 537 537 request 538 -)))|(% style="width: 47px" %)(((372 +)))|(% style="width:52px" %)((( 539 539 ACK 540 -)))|(% style="width: 83px" %)(((374 +)))|(% style="width:127px" %)((( 541 541 ((( 542 542 DI1& 377 +))) 378 + 379 +((( 543 543 DI1 level 544 544 ))) 545 -)))|(% style="width: 90px" %)(((382 +)))|(% style="width:101px" %)((( 546 546 DI1TODO1 547 -)))|(% style="width:9 2px" %)(((384 +)))|(% style="width:91px" %)((( 548 548 DI1TORO1 549 -)))|(% style="width: 78px" %)(((386 +)))|(% style="width:111px" %)((( 550 550 ((( 551 551 DI2& 552 -DI2 leve 553 553 ))) 554 -)))|(% style="width:91px" %)((( 555 -DI2TODO2 556 -)))|(% style="width:91px" %)((( 557 -DI2TORO2 558 -))) 559 559 560 560 ((( 561 - (%style="color:#037691" %)**Thefirst byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number.392 +DI2 level 562 562 ))) 563 - 564 -((( 565 -(% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 566 -))) 567 - 568 -((( 569 -(% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 570 -))) 571 - 572 -((( 573 -((( 574 -(% style="color:#037691" %)**The fourth byte**(%%)**:** the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered. 575 -))) 576 -))) 577 - 578 -((( 579 -(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 580 -))) 581 - 582 -((( 583 -(% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 584 -))) 585 - 586 -((( 587 -((( 588 -(% style="color:#037691" %)**The seventh byte**(%%)**:** the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered. 589 -))) 590 -))) 591 - 592 -((( 593 -(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 594 -))) 595 - 596 -((( 597 -(% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 598 -))) 599 - 600 -((( 601 - 602 - 603 -(% style="color:blue" %)**Payload:(Since firmware 1.3)The receiver replies to the sent packet** 604 -))) 605 - 606 -(% border="1" style="background-color:#f7faff; color:black; width:822px" %) 607 -|=(% style="width: 97px;" %)((( 608 -**Size(bytes)** 609 -)))|=(% style="width: 71px;" %)((( 610 -1 611 -)))|=(% style="width: 70px;" %)((( 612 -1 613 -)))|=(% style="width: 48px;" %)((( 614 -1 615 -)))|=(% style="width: 85px;" %)((( 616 -1 617 -)))|=(% style="width: 90px;" %)((( 618 -1 619 -)))|=(% style="width: 88px;" %)((( 620 -1 621 -)))|=(% style="width: 86px;" %)((( 622 -1 623 -)))|=(% style="width: 92px;" %)((( 624 -1 625 -)))|=(% style="width: 92px;" %)((( 626 -1 627 -))) 628 -|(% style="width:97px" %)((( 629 -**Value** 630 -)))|(% style="width:71px" %)((( 631 -address 632 -)))|(% style="width:70px" %)((( 633 -request 634 -)))|(% style="width:48px" %)((( 635 -ACK 636 -)))|(% style="width:85px" %)((( 637 -((( 638 -DOI1& 639 -DOI2 level 640 -))) 641 -)))|(% style="width:90px" %)((( 642 -DI1TODO1 643 -)))|(% style="width:88px" %)((( 644 -DI1TORO1 645 -)))|(% style="width:86px" %)((( 646 -((( 647 -RO2& 648 -RO2 level 649 -))) 650 -)))|(% style="width:92px" %)((( 394 +)))|(% style="width:105px" %)((( 651 651 DI2TODO2 652 -)))|(% style="width: 92px" %)(((396 +)))|(% style="width:106px" %)((( 653 653 DI2TORO2 654 654 ))) 655 655 ... ... @@ -667,7 +667,7 @@ 667 667 668 668 ((( 669 669 ((( 670 -(% style="color:#037691" %)**The fourth byte**(%%)**:** the high four bits are 1 to represent D OI1, and the low four bits are the level of DOI2when the interrupt is triggered.414 +(% style="color:#037691" %)**The fourth byte**(%%)**:** the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered. 671 671 ))) 672 672 ))) 673 673 ... ... @@ -681,7 +681,7 @@ 681 681 682 682 ((( 683 683 ((( 684 -(% style="color:#037691" %)**The seventh byte**(%%)**:** the high four bits are 2 to represent RO2, and the low four bits are the level ofRO2 when the interrupt is triggered.428 +(% style="color:#037691" %)**The seventh byte**(%%)**:** the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered. 685 685 ))) 686 686 ))) 687 687