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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... ... @@ -19,14 +19,13 @@ 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 - 30 30 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) 31 31 |=**A's configuration**|=**B's configuration** 32 32 |AT+GROUPMOD=0|AT+GROUPMOD=0 ... ... @@ -41,454 +41,170 @@ 41 41 42 42 43 43 44 -== =**2.2.3Serialportdisplay** ===43 +== **2.2 Point To Mult-Point ** == 45 45 46 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 -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 - 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 - 116 116 ((( 117 -If the TX groupdoes notreceiveallthe ACK repliesfrom theRX group, it will retransmit up to 4 times, eachtime interval is30seconds, and the retransmissionUplinkCounterwill not increase.52 +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. 118 118 ))) 119 119 120 120 121 - 122 - 123 123 == **2.3 AT command** == 124 124 125 125 126 -((( 127 127 (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 128 -))) 129 129 130 -((( 131 131 (% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 132 -))) 133 133 134 -((( 135 135 (% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 136 -))) 137 137 138 -((( 139 139 (% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 140 -))) 141 141 142 -((( 143 143 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 144 -))) 145 145 146 -((( 147 147 (% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 148 -))) 149 149 150 -((( 151 151 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 152 -))) 153 153 154 -((( 155 155 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 156 -))) 157 157 158 -((( 159 159 (% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 160 -))) 161 161 162 -((( 163 163 (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 164 -))) 165 165 166 -((( 167 167 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 168 -))) 169 169 170 -((( 171 171 (% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 172 -))) 173 173 174 -((( 175 175 (% 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 -))) 177 177 178 -((( 179 179 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 180 -))) 181 181 182 -((( 183 183 (% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 184 -))) 185 185 186 -((( 187 187 (% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 188 -))) 189 189 190 -((( 191 191 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 192 -))) 193 193 194 -((( 195 -((( 196 196 (% 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 -))) 199 199 200 -((( 201 201 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 202 -))) 203 203 204 -((( 205 205 (% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 206 -))) 207 207 208 -((( 209 209 (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 210 -))) 211 211 212 -((( 213 213 (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 214 -))) 215 215 216 -((( 217 217 (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 218 -))) 219 219 220 -((( 221 221 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 222 -))) 223 223 224 -((( 225 - 226 -))) 227 227 228 -((( 229 - 230 -))) 231 231 232 -((( 233 233 (% style="color:#4f81bd" %)**Example 1:** 234 -))) 235 235 236 -((( 237 237 **AT+SEND=01020304 **will send a payload of 01020304 238 -))) 239 239 240 -((( 241 - 242 -))) 243 243 244 -((( 245 245 (% style="color:#4f81bd" %)**Example 2: ** 246 -))) 247 247 248 -((( 249 249 **AT+TRIGx=a **Trigger directly without triggering time 250 -))) 251 251 252 -((( 253 253 **AT+TRIGx=a,b** 254 -))) 255 255 256 -((( 257 257 a=0: falling edge; 258 -))) 259 259 260 -((( 261 261 a=1: rising edge; 262 -))) 263 263 264 -((( 265 265 a=2: falling edge or rising edge; 266 -))) 267 267 268 -((( 269 269 b: triggering time in milliseconds. 270 -))) 271 271 272 -((( 273 273 AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 274 -))) 275 275 276 -((( 277 - 278 -))) 279 279 280 -((( 281 281 (% style="color:#4f81bd" %)**Example 3: ** 282 -))) 283 283 284 -((( 285 285 **AT+DI1TODO1= maps value** 286 -))) 287 287 288 -((( 289 289 **AT+DI1TORO1= maps value** 290 -))) 291 291 292 -((( 293 293 **AT+DI2TODO2= maps value** 294 -))) 295 295 296 -((( 297 297 **AT+DI2TORO2= maps value** 298 -))) 299 299 300 -((( 301 - 302 -))) 303 303 304 304 (% 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 -((( 143 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 144 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 145 +|(% 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 -((( 150 +|(% 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 -))) 155 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 352 352 353 -((( 354 354 (% style="color:#4f81bd" %)**Example 4: ** 355 -))) 356 356 357 -((( 358 358 **AT+GROUPMOD=0** Set to point to point mode 359 -))) 360 360 361 -((( 362 362 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 363 -))) 364 364 365 -((( 366 -((( 367 367 **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 -((( 372 372 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 373 -))) 374 374 375 -((( 376 376 **AT+GROUPMOD=1,1** Set the RX group numbered 1 377 -))) 378 378 379 -((( 380 380 **AT+GROUPMOD=1,2** Set the RX group numbered 2 381 -))) 382 382 383 383 384 384 == **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 -((( 395 395 (% style="color:#4f81bd" %)**Payload:** 396 -))) 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 -((( 180 +|=(% 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;" %)1 181 +|(% 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 -((( 185 +)))|(% 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 -))) 189 +)))|(% 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 -((( 473 473 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 474 -))) 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 -((( 487 487 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 488 -))) 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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