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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... ... @@ -19,13 +19,12 @@ 19 19 20 20 == **2.1 Point To Point** == 21 21 22 -=== **2.1.1 Overview** === 23 23 24 - 25 25 [[image:image-20220602111219-1.png||height="472" width="972"]] 26 26 27 27 28 -=== **2.2.2 Configure** === 26 +(% class="wikigeneratedid" id="H2.2.Configure" %) 27 +(% style="color:blue" %)**Configure:** 29 29 30 30 31 31 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) ... ... @@ -40,454 +40,168 @@ 40 40 |AT+DI2TODO2=2 |AT+DI2TODO2=2 41 41 |AT+DI2TORO2=2|AT+DI2TORO2=2 42 42 42 +== **2.2 Point To Mult-Point ** == 43 43 44 44 45 -=== **2.2.3 Serial port display** === 46 - 47 - 48 -(% class="wikigeneratedid" %) 49 49 [[image:image-20220602111219-2.png]] 50 50 51 51 52 -(% class="wikigeneratedid" %) 53 53 [[image:image-20220602111219-3.png]] 54 54 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 - 61 -=== **2.2.1 Overview** === 62 - 63 - 64 -[[image:1654152390874-192.png]] 65 - 66 - 67 -=== **2.2.2 Configure** === 68 - 69 - 70 -(% style="color:#4f81bd" %)**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:#4f81bd" %)**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:#4f81bd" %)**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 -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. 119 -))) 120 - 121 - 122 122 == **2.3 AT command** == 123 123 124 124 125 -((( 126 126 (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 127 -))) 128 128 129 -((( 130 130 (% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 131 -))) 132 132 133 -((( 134 134 (% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 135 -))) 136 136 137 -((( 138 138 (% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 139 -))) 140 140 141 -((( 142 142 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 143 -))) 144 144 145 -((( 146 146 (% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 147 -))) 148 148 149 -((( 150 150 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 151 -))) 152 152 153 -((( 154 154 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 155 -))) 156 156 157 -((( 158 158 (% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 159 -))) 160 160 161 -((( 162 162 (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 163 -))) 164 164 165 -((( 166 166 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 167 -))) 168 168 169 -((( 170 -(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 171 -))) 78 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 172 172 173 -((( 174 174 (% style="color:#037691" %)**AT+CR **(%%)**: **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 175 -))) 176 176 177 -((( 178 178 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 179 -))) 180 180 181 -((( 182 182 (% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 183 -))) 184 184 185 -((( 186 -(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 187 -))) 86 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 188 188 189 -((( 190 190 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 191 -))) 192 192 193 -((( 194 -((( 195 195 (% style="color:#037691" %)**AT+GROUPID **(%%)**: **Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678) 196 -))) 197 -))) 198 198 199 -((( 200 200 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 201 -))) 202 202 203 -((( 204 204 (% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 205 -))) 206 206 207 -((( 208 208 (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 209 -))) 210 210 211 -((( 212 212 (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 213 -))) 214 214 215 -((( 216 216 (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 217 -))) 218 218 219 -((( 220 220 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 221 -))) 222 222 223 -((( 224 - 225 -))) 226 226 227 -((( 228 - 229 -))) 230 230 231 -((( 232 232 (% style="color:#4f81bd" %)**Example 1:** 233 -))) 234 234 235 -((( 236 236 **AT+SEND=01020304 **will send a payload of 01020304 237 -))) 238 238 239 -((( 240 - 241 -))) 242 242 243 -((( 244 244 (% style="color:#4f81bd" %)**Example 2: ** 245 -))) 246 246 247 -((( 248 248 **AT+TRIGx=a **Trigger directly without triggering time 249 -))) 250 250 251 -((( 252 252 **AT+TRIGx=a,b** 253 -))) 254 254 255 -((( 256 256 a=0: falling edge; 257 -))) 258 258 259 -((( 260 260 a=1: rising edge; 261 -))) 262 262 263 -((( 264 264 a=2: falling edge or rising edge; 265 -))) 266 266 267 -((( 268 268 b: triggering time in milliseconds. 269 -))) 270 270 271 -((( 272 272 AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 273 -))) 274 274 275 -((( 276 - 277 -))) 278 278 279 -((( 280 280 (% style="color:#4f81bd" %)**Example 3: ** 281 -))) 282 282 283 -((( 284 284 **AT+DI1TODO1= maps value** 285 -))) 286 286 287 -((( 288 288 **AT+DI1TORO1= maps value** 289 -))) 290 290 291 -((( 292 292 **AT+DI2TODO2= maps value** 293 -))) 294 294 295 -((( 296 296 **AT+DI2TORO2= maps value** 297 -))) 298 298 299 -((( 300 - 301 -))) 302 302 303 303 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 304 -|=(% style="width: 102px;" %)((( 305 -Maps value 306 -)))|=(% style="width: 331px;" %)((( 307 -DIx to DOx 308 -)))|=(% style="width: 268px;" %)((( 309 -DIx to ROx 310 -))) 311 -|(% style="width:102px" %)((( 312 -0 313 -)))|(% style="width:331px" %)((( 314 -No Action 315 -)))|(% style="width:268px" %)((( 316 -No Action 317 -))) 318 -|(% style="width:102px" %)((( 319 -1 320 -)))|(% style="width:331px" %)((( 321 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 322 -)))|(% style="width:268px" %)((( 323 -((( 140 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 141 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 142 +|(% style="width:102px" %)1|(% style="width:331px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:268px" %)((( 324 324 If DIx is high, control ROx to close, 325 -))) 326 326 327 -((( 328 328 if DIx is low, control ROx to open 329 329 ))) 330 -))) 331 -|(% style="width:102px" %)((( 332 -2 333 -)))|(% style="width:331px" %)((( 334 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 335 -)))|(% style="width:268px" %)((( 336 -((( 147 +|(% style="width:102px" %)2|(% style="width:331px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:268px" %)((( 337 337 If DIx is high, control ROx to open, 338 -))) 339 339 340 -((( 341 341 if DIx is low, control ROx to close 342 342 ))) 343 -))) 344 -|(% style="width:102px" %)((( 345 -3 346 -)))|(% style="width:331px" %)((( 347 -DOx state flip 348 -)))|(% style="width:268px" %)((( 349 -ROx state flip 350 -))) 152 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 351 351 352 -((( 353 353 (% style="color:#4f81bd" %)**Example 4: ** 354 -))) 355 355 356 -((( 357 357 **AT+GROUPMOD=0** Set to point to point mode 358 -))) 359 359 360 -((( 361 361 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 362 -))) 363 363 364 -((( 365 -((( 366 366 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 367 -))) 368 -))) 369 369 370 -((( 371 371 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 372 -))) 373 373 374 -((( 375 375 **AT+GROUPMOD=1,1** Set the RX group numbered 1 376 -))) 377 377 378 -((( 379 379 **AT+GROUPMOD=1,2** Set the RX group numbered 2 380 -))) 381 381 382 382 383 383 == **2.4 Data Format** == 384 384 385 -((( 386 386 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 387 -))) 388 388 389 -((( 390 - 391 -))) 392 392 393 -((( 394 394 (% style="color:#4f81bd" %)**Payload:** 395 -))) 396 396 397 397 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 398 -|=(% style="width: 123px;" %)((( 399 -**Size (bytes)** 400 -)))|=(% style="width: 107px;" %)((( 401 -1 402 -)))|=(% style="width: 107px;" %)((( 403 -1 404 -)))|=(% style="width: 107px;" %)((( 405 -1 406 -)))|=(% style="width: 107px;" %)((( 407 -1 408 -)))|=(% style="width: 107px;" %)((( 409 -1 410 -)))|=(% style="width: 107px;" %)((( 411 -1 412 -)))|=(% style="width: 107px;" %)((( 413 -1 414 -)))|=(% style="width: 107px;" %)((( 415 -1 416 -)))|=(% style="width: 107px;" %)((( 417 -1 418 -))) 419 -|(% style="width:123px" %)((( 420 -**Value** 421 -)))|(% style="width:38px" %)((( 422 -address 423 -)))|(% style="width:70px" %)((( 424 -request 425 -)))|(% style="width:52px" %)((( 426 -ACK 427 -)))|(% style="width:127px" %)((( 428 -((( 177 +|=(% style="width: 123px;" %)**Size (bytes)**|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1 178 +|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)((( 429 429 DI1& 430 -))) 431 431 432 -((( 433 433 DI1 level 434 -))) 435 -)))|(% style="width:101px" %)((( 436 -DI1TODO1 437 -)))|(% style="width:91px" %)((( 438 -DI1TORO1 439 -)))|(% style="width:111px" %)((( 440 -((( 182 +)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)((( 441 441 DI2& 442 -))) 443 443 444 -((( 445 445 DI2 level 446 -))) 447 -)))|(% style="width:105px" %)((( 448 -DI2TODO2 449 -)))|(% style="width:106px" %)((( 450 -DI2TORO2 451 -))) 186 +)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 452 452 453 -((( 454 454 (% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 455 -))) 456 456 457 -((( 458 458 (% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 459 -))) 460 460 461 -((( 462 462 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 463 -))) 464 464 465 -((( 466 -((( 467 467 (% 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. 468 -))) 469 -))) 470 470 471 -((( 472 472 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 473 -))) 474 474 475 -((( 476 476 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 477 -))) 478 478 479 -((( 480 -((( 481 481 (% 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. 482 -))) 483 -))) 484 484 485 -((( 486 486 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 487 -))) 488 488 489 -((( 490 490 (% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 491 -))) 492 492 493 493
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