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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... ... @@ -19,12 +19,12 @@ 19 19 20 20 == **2.1 Point To Point** == 21 21 22 -=== **2.1.1 Overview** === 23 23 24 24 [[image:image-20220602111219-1.png||height="472" width="972"]] 25 25 26 26 27 -=== **2.2.2 Configure** === 26 +(% class="wikigeneratedid" id="H2.2.Configure" %) 27 +(% style="color:blue" %)**Configure:** 28 28 29 29 30 30 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) ... ... @@ -39,456 +39,162 @@ 39 39 |AT+DI2TODO2=2 |AT+DI2TODO2=2 40 40 |AT+DI2TORO2=2|AT+DI2TORO2=2 41 41 42 +== **2.2 Point To Mult-Point ** == 42 42 43 43 44 -=== **2.2.3 Serial port display** === 45 - 46 - 47 -(% class="wikigeneratedid" %) 48 48 [[image:image-20220602111219-2.png]] 49 49 50 50 51 -(% class="wikigeneratedid" %) 52 52 [[image:image-20220602111219-3.png]] 53 53 54 -(% class="wikigeneratedid" %) 55 55 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. 56 56 57 57 58 -== **2.2 Point To Mult-Point ** == 59 - 60 -=== **2.2.1 Overview** === 61 - 62 - 63 -[[image:1654152390874-192.png]] 64 - 65 - 66 -=== **2.2.2 Configure** === 67 - 68 - 69 -(% style="color:#4f81bd" %)**Configuration of the TX group:** 70 - 71 -AT+GROUPMOD=0,2 72 - 73 -AT+TXCHS=868700000 74 - 75 -AT+RXCHS=869000000 76 - 77 -AT+TRIG1=2,50 78 - 79 -AT+TRIG2=2,50 80 - 81 -AT+DI1TODO1=1 82 - 83 -AT+DI1TORO1=1 84 - 85 -AT+DI2TODO2=1 86 - 87 -AT+DI2TORO2=1 88 - 89 - 90 -(% style="color:#4f81bd" %)**Configuration for RX group number 1:** 91 - 92 -AT+GROUPMOD=1,1 93 - 94 -AT+TXCHS=869000000 95 - 96 -AT+RXCHS=868700000 97 - 98 - 99 -(% style="color:#4f81bd" %)**Configuration for RX group number 2:** 100 - 101 -AT+GROUPMOD=1,2 102 - 103 -AT+TXCHS=869000000 104 - 105 -AT+RXCHS=868700000 106 - 107 - 108 -=== **2.2.3 Serial port display** === 109 - 110 - 111 -[[image:image-20220602144747-1.png]] 112 - 113 - 114 -[[image:image-20220602144747-2.png]] 115 - 116 -((( 117 -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. 118 -))) 119 - 120 - 121 - 122 - 123 123 == **2.3 AT command** == 124 124 125 125 126 -((( 127 -(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 128 -))) 56 +ATZ : Trig a reset of the MCU 129 129 130 -((( 131 -(% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 132 -))) 58 +AT+FDR : Reset Parameters to Factory Default, Keys Reserve 133 133 134 -((( 135 -(% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 136 -))) 60 +AT+FCU : Get or Set the Frame Counter Uplink 137 137 138 -((( 139 -(% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 140 -))) 62 +AT+FCD : Get or Set the Frame Counter Downlink 141 141 142 -((( 143 -(% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 144 -))) 64 +AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 145 145 146 -((( 147 -(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 148 -))) 66 +AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 149 149 150 -((( 151 -(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 152 -))) 68 +AT+PMB : Get or Set the preamble (default:8) 153 153 154 -((( 155 -(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 156 -))) 70 +AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000) 157 157 158 -((( 159 -(% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 160 -))) 72 +AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12) 161 161 162 -((( 163 -(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 164 -))) 74 +AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000) 165 165 166 -((( 167 -(% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 168 -))) 76 +AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12) 169 169 170 -((( 171 -(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 172 -))) 78 +AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 173 173 174 -((( 175 -(% 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) 176 -))) 80 +AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 177 177 178 -((( 179 -(% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 180 -))) 82 +AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes) 181 181 182 -((( 183 -(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 184 -))) 84 +AT+VER : Get firmware version number 185 185 186 -((( 187 -(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 188 -))) 86 +AT+SEND : Set Custom sent hex data 189 189 190 -((( 191 -(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 192 -))) 88 +AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0) 193 193 194 -((( 195 -((( 196 -(% 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) 197 -))) 198 -))) 90 +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) 199 199 200 -((( 201 -(% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 202 -))) 92 +AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0) 203 203 204 -((( 205 -(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 206 -))) 94 +AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0) 207 207 208 -((( 209 -(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 210 -))) 96 +AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0) 211 211 212 -((( 213 -(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 214 -))) 98 +AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0) 215 215 216 -((( 217 -(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 218 -))) 100 +AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0) 219 219 220 -((( 221 -(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 222 -))) 102 +AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0) 223 223 224 -((( 225 - 226 -))) 227 227 228 -((( 229 - 230 -))) 231 231 232 -((( 233 -(% style="color:#4f81bd" %)**Example 1:** 234 -))) 106 +**Example1:** AT+SEND=01020304 will send a payload of 01020304 235 235 236 -((( 237 -**AT+SEND=01020304 **will send a payload of 01020304 238 -))) 239 239 240 -((( 241 - 242 -))) 109 +i.g. AT+TRIGx=a Trigger directly without triggering time 243 243 244 -((( 245 -(% style="color:#4f81bd" %)**Example 2: ** 246 -))) 111 +AT+TRIGx=a,b a=0, falling edge; 247 247 248 -((( 249 -**AT+TRIGx=a **Trigger directly without triggering time 250 -))) 113 +a=1, rising edge; 251 251 252 -((( 253 -**AT+TRIGx=a,b** 254 -))) 115 + a=2, falling edge or rising edge. 255 255 256 -((( 257 -a=0: falling edge; 258 -))) 117 + b, triggering time in milliseconds 259 259 260 -((( 261 -a=1: rising edge; 262 -))) 119 + AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms 263 263 264 -((( 265 -a=2: falling edge or rising edge; 266 -))) 267 267 268 -((( 269 -b: triggering time in milliseconds. 270 -))) 122 +i.g. AT+DI1TODO1= maps value 271 271 272 -((( 273 -AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 274 -))) 124 + AT+DI1TORO1= maps value 275 275 276 -((( 277 - 278 -))) 126 +AT+DI2TODO2= maps value 279 279 280 -((( 281 -(% style="color:#4f81bd" %)**Example 3: ** 282 -))) 128 +AT+DI2TORO2= maps value 283 283 284 -((( 285 -**AT+DI1TODO1= maps value** 286 -))) 287 287 288 -((( 289 -**AT+DI1TORO1= maps value** 290 -))) 291 291 292 -((( 293 -**AT+DI2TODO2= maps value** 294 -))) 295 295 296 -((( 297 -**AT+DI2TORO2= maps value** 298 -))) 299 - 300 -((( 301 - 302 -))) 303 - 304 304 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 305 -|=(% style="width: 102px;" %)((( 306 -Maps value 307 -)))|=(% style="width: 331px;" %)((( 308 -DIx to DOx 309 -)))|=(% style="width: 268px;" %)((( 310 -DIx to ROx 311 -))) 312 -|(% style="width:102px" %)((( 313 -0 314 -)))|(% style="width:331px" %)((( 315 -No Action 316 -)))|(% style="width:268px" %)((( 317 -No Action 318 -))) 319 -|(% style="width:102px" %)((( 320 -1 321 -)))|(% style="width:331px" %)((( 322 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 323 -)))|(% style="width:268px" %)((( 324 -((( 134 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 135 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 136 +|(% 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" %)((( 325 325 If DIx is high, control ROx to close, 326 -))) 327 327 328 -((( 329 329 if DIx is low, control ROx to open 330 330 ))) 331 -))) 332 -|(% style="width:102px" %)((( 333 -2 334 -)))|(% style="width:331px" %)((( 335 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 336 -)))|(% style="width:268px" %)((( 337 -((( 141 +|(% 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" %)((( 338 338 If DIx is high, control ROx to open, 339 -))) 340 340 341 -((( 342 342 if DIx is low, control ROx to close 343 343 ))) 344 -))) 345 -|(% style="width:102px" %)((( 346 -3 347 -)))|(% style="width:331px" %)((( 348 -DOx state flip 349 -)))|(% style="width:268px" %)((( 350 -ROx state flip 351 -))) 146 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 352 352 353 -((( 354 -(% style="color:#4f81bd" %)**Example 4: ** 355 -))) 148 +i.g. AT+GROUPMOD=0 Set to point to point mode 356 356 357 -((( 358 -**AT+GROUPMOD=0** Set to point to point mode 359 -))) 150 +AT+GROUPMOD=0,aa Set the TX group that controls the number of aa (The maximum value of aa is 8) 360 360 361 -((( 362 -**AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 363 -))) 152 +AT+GROUPMOD=1,bb Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 364 364 365 -((( 366 -((( 367 -**AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 368 -))) 369 -))) 370 370 371 -((( 372 -**AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 373 -))) 155 +AT+GROUPMOD=0,2 Set to control the TX group of the two RX groups 374 374 375 -((( 376 -**AT+GROUPMOD=1,1** Set the RX group numbered 1 377 -))) 157 +AT+GROUPMOD=1,1 Set the RX group numbered 1 378 378 379 -((( 380 -**AT+GROUPMOD=1,2** Set the RX group numbered 2 381 -))) 159 +AT+GROUPMOD=1,2 Set the RX group numbered 2 382 382 383 383 162 + 384 384 == **2.4 Data Format** == 385 385 386 -((( 387 387 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 388 -))) 389 389 390 -((( 391 - 392 -))) 393 393 394 -((( 395 -(% style="color:#4f81bd" %)**Payload:** 396 -))) 168 +**Payload:** 397 397 398 398 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 399 -|=(% style="width: 123px;" %)((( 400 -**Size (bytes)** 401 -)))|=(% style="width: 107px;" %)((( 402 -1 403 -)))|=(% style="width: 107px;" %)((( 404 -1 405 -)))|=(% style="width: 107px;" %)((( 406 -1 407 -)))|=(% style="width: 107px;" %)((( 408 -1 409 -)))|=(% style="width: 107px;" %)((( 410 -1 411 -)))|=(% style="width: 107px;" %)((( 412 -1 413 -)))|=(% style="width: 107px;" %)((( 414 -1 415 -)))|=(% style="width: 107px;" %)((( 416 -1 417 -)))|=(% style="width: 107px;" %)((( 418 -1 419 -))) 420 -|(% style="width:123px" %)((( 421 -**Value** 422 -)))|(% style="width:38px" %)((( 423 -address 424 -)))|(% style="width:70px" %)((( 425 -request 426 -)))|(% style="width:52px" %)((( 427 -ACK 428 -)))|(% style="width:127px" %)((( 429 -((( 171 +|=(% 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;" %)1 172 +|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)((( 430 430 DI1& 431 -))) 432 432 433 -((( 434 434 DI1 level 435 -))) 436 -)))|(% style="width:101px" %)((( 437 -DI1TODO1 438 -)))|(% style="width:91px" %)((( 439 -DI1TORO1 440 -)))|(% style="width:111px" %)((( 441 -((( 176 +)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)((( 442 442 DI2& 443 -))) 444 444 445 -((( 446 446 DI2 level 447 -))) 448 -)))|(% style="width:105px" %)((( 449 -DI2TODO2 450 -)))|(% style="width:106px" %)((( 451 -DI2TORO2 452 -))) 180 +)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 453 453 454 -((( 455 455 (% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 456 -))) 457 457 458 -((( 459 459 (% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 460 -))) 461 461 462 -((( 463 463 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 464 -))) 465 465 466 -((( 467 -((( 468 468 (% 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. 469 -))) 470 -))) 471 471 472 -((( 473 -(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 474 -))) 190 +(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 475 475 476 -((( 477 477 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 478 -))) 479 479 480 -((( 481 -((( 482 482 (% 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. 483 -))) 484 -))) 485 485 486 -((( 487 -(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 488 -))) 196 +(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 489 489 490 -((( 491 491 (% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 492 -))) 493 493 494 494
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