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" %) ... ... @@ -42,454 +42,164 @@ 42 42 43 43 44 44 45 -== =**2.2.3Serialportdisplay** ===44 +== **2.2 Point To Mult-Point ** == 46 46 47 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 - 123 - 124 124 == **2.3 AT command** == 125 125 126 126 127 -((( 128 -(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 129 -))) 58 +ATZ : Trig a reset of the MCU 130 130 131 -((( 132 -(% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 133 -))) 60 +AT+FDR : Reset Parameters to Factory Default, Keys Reserve 134 134 135 -((( 136 -(% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 137 -))) 62 +AT+FCU : Get or Set the Frame Counter Uplink 138 138 139 -((( 140 -(% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 141 -))) 64 +AT+FCD : Get or Set the Frame Counter Downlink 142 142 143 -((( 144 -(% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 145 -))) 66 +AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 146 146 147 -((( 148 -(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 149 -))) 68 +AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 150 150 151 -((( 152 -(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 153 -))) 70 +AT+PMB : Get or Set the preamble (default:8) 154 154 155 -((( 156 -(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 157 -))) 72 +AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000) 158 158 159 -((( 160 -(% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 161 -))) 74 +AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12) 162 162 163 -((( 164 -(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 165 -))) 76 +AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000) 166 166 167 -((( 168 -(% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 169 -))) 78 +AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12) 170 170 171 -((( 172 -(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 173 -))) 80 +AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 174 174 175 -((( 176 -(% 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) 177 -))) 82 +AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 178 178 179 -((( 180 -(% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 181 -))) 84 +AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes) 182 182 183 -((( 184 -(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 185 -))) 86 +AT+VER : Get firmware version number 186 186 187 -((( 188 -(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 189 -))) 88 +AT+SEND : Set Custom sent hex data 190 190 191 -((( 192 -(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 193 -))) 90 +AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0) 194 194 195 -((( 196 -((( 197 -(% 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) 198 -))) 199 -))) 92 +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) 200 200 201 -((( 202 -(% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 203 -))) 94 +AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0) 204 204 205 -((( 206 -(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 207 -))) 96 +AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0) 208 208 209 -((( 210 -(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 211 -))) 98 +AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0) 212 212 213 -((( 214 -(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 215 -))) 100 +AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0) 216 216 217 -((( 218 -(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 219 -))) 102 +AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0) 220 220 221 -((( 222 -(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 223 -))) 104 +AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0) 224 224 225 -((( 226 - 227 -))) 228 228 229 -((( 230 - 231 -))) 232 232 233 -((( 234 -(% style="color:#4f81bd" %)**Example 1:** 235 -))) 108 +i.g. AT+SEND=01020304 will send a payload of 01020304 236 236 237 -((( 238 -**AT+SEND=01020304 **will send a payload of 01020304 239 -))) 240 240 241 -((( 242 - 243 -))) 111 +i.g. AT+TRIGx=a Trigger directly without triggering time 244 244 245 -((( 246 -(% style="color:#4f81bd" %)**Example 2: ** 247 -))) 113 +AT+TRIGx=a,b a=0, falling edge; 248 248 249 -((( 250 -**AT+TRIGx=a **Trigger directly without triggering time 251 -))) 115 +a=1, rising edge; 252 252 253 -((( 254 -**AT+TRIGx=a,b** 255 -))) 117 + a=2, falling edge or rising edge. 256 256 257 -((( 258 -a=0: falling edge; 259 -))) 119 + b, triggering time in milliseconds 260 260 261 -((( 262 -a=1: rising edge; 263 -))) 121 + AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms 264 264 265 -((( 266 -a=2: falling edge or rising edge; 267 -))) 268 268 269 -((( 270 -b: triggering time in milliseconds. 271 -))) 124 +i.g. AT+DI1TODO1= maps value 272 272 273 -((( 274 -AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 275 -))) 126 + AT+DI1TORO1= maps value 276 276 277 -((( 278 - 279 -))) 128 +AT+DI2TODO2= maps value 280 280 281 -((( 282 -(% style="color:#4f81bd" %)**Example 3: ** 283 -))) 130 +AT+DI2TORO2= maps value 284 284 285 -((( 286 -**AT+DI1TODO1= maps value** 287 -))) 288 288 289 -((( 290 -**AT+DI1TORO1= maps value** 291 -))) 292 292 293 -((( 294 -**AT+DI2TODO2= maps value** 295 -))) 296 296 297 -((( 298 -**AT+DI2TORO2= maps value** 299 -))) 300 - 301 -((( 302 - 303 -))) 304 - 305 -(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 306 -|=(% style="width: 102px;" %)((( 307 -Maps value 308 -)))|=(% style="width: 331px;" %)((( 309 -DIx to DOx 310 -)))|=(% style="width: 268px;" %)((( 311 -DIx to ROx 312 -))) 313 -|(% style="width:102px" %)((( 314 -0 315 -)))|(% style="width:331px" %)((( 316 -No Action 317 -)))|(% style="width:268px" %)((( 318 -No Action 319 -))) 320 -|(% style="width:102px" %)((( 321 -1 322 -)))|(% style="width:331px" %)((( 323 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 324 -)))|(% style="width:268px" %)((( 325 -((( 135 +(% style="width:706px" %) 136 +|(% style="width:102px" %)Maps value|(% style="width:331px" %)DIx to DOx|(% style="width:268px" %)DIx to ROx 137 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 138 +|(% 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" %)((( 326 326 If DIx is high, control ROx to close, 327 -))) 328 328 329 -((( 330 330 if DIx is low, control ROx to open 331 331 ))) 332 -))) 333 -|(% style="width:102px" %)((( 334 -2 335 -)))|(% style="width:331px" %)((( 336 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 337 -)))|(% style="width:268px" %)((( 338 -((( 143 +|(% 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" %)((( 339 339 If DIx is high, control ROx to open, 340 -))) 341 341 342 -((( 343 343 if DIx is low, control ROx to close 344 344 ))) 345 -))) 346 -|(% style="width:102px" %)((( 347 -3 348 -)))|(% style="width:331px" %)((( 349 -DOx state flip 350 -)))|(% style="width:268px" %)((( 351 -ROx state flip 352 -))) 148 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 353 353 354 -((( 355 -(% style="color:#4f81bd" %)**Example 4: ** 356 -))) 150 +i.g. AT+GROUPMOD=0 Set to point to point mode 357 357 358 -((( 359 -**AT+GROUPMOD=0** Set to point to point mode 360 -))) 152 +AT+GROUPMOD=0,aa Set the TX group that controls the number of aa (The maximum value of aa is 8) 361 361 362 -((( 363 -**AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 364 -))) 154 +AT+GROUPMOD=1,bb Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 365 365 366 -((( 367 -((( 368 -**AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 369 -))) 370 -))) 371 371 372 -((( 373 -**AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 374 -))) 157 +AT+GROUPMOD=0,2 Set to control the TX group of the two RX groups 375 375 376 -((( 377 -**AT+GROUPMOD=1,1** Set the RX group numbered 1 378 -))) 159 +AT+GROUPMOD=1,1 Set the RX group numbered 1 379 379 380 -((( 381 -**AT+GROUPMOD=1,2** Set the RX group numbered 2 382 -))) 161 +AT+GROUPMOD=1,2 Set the RX group numbered 2 383 383 384 384 164 + 385 385 == **2.4 Data Format** == 386 386 387 -((( 388 388 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 389 -))) 390 390 391 -((( 392 - 393 -))) 394 394 395 -((( 396 -(% style="color:#4f81bd" %)**Payload:** 397 -))) 170 +Payload: 398 398 399 -(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 400 -|=(% style="width: 123px;" %)((( 401 -**Size (bytes)** 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 -)))|=(% style="width: 107px;" %)((( 419 -1 420 -))) 421 -|(% style="width:123px" %)((( 422 -**Value** 423 -)))|(% style="width:38px" %)((( 424 -address 425 -)))|(% style="width:70px" %)((( 426 -request 427 -)))|(% style="width:52px" %)((( 428 -ACK 429 -)))|(% style="width:127px" %)((( 430 -((( 172 +|**Size (bytes)**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|**1** 173 +|**Value**|(% colspan="2" %)address|(% colspan="2" %)request|(% colspan="2" %)ACK|(% colspan="2" %)((( 431 431 DI1& 432 -))) 433 433 434 -((( 435 435 DI1 level 436 -))) 437 -)))|(% style="width:101px" %)((( 438 -DI1TODO1 439 -)))|(% style="width:91px" %)((( 440 -DI1TORO1 441 -)))|(% style="width:111px" %)((( 442 -((( 177 +)))|DI1TODO1 178 +|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %) 179 +|(% colspan="2" %)DI1TORO1|(% colspan="2" %)((( 443 443 DI2& 444 -))) 445 445 446 -((( 447 447 DI2 level 448 -))) 449 -)))|(% style="width:105px" %)((( 450 -DI2TODO2 451 -)))|(% style="width:106px" %)((( 452 -DI2TORO2 453 -))) 183 +)))|(% colspan="2" %)DI2TODO2|(% colspan="2" %)DI2TORO2|(% colspan="2" %) 184 +| | | | | | | | | | 454 454 455 -((( 456 -(% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 457 -))) 186 +The first byte: 00 is the broadcast address, 01-08 is the RX group number 458 458 459 -((( 460 -(% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 461 -))) 188 +The second byte: send mapping request when not 0, not request when it is 0 462 462 463 -((( 464 -(% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 465 -))) 190 +The third byte: ACK returned to the sender after the mapping is completed 466 466 467 -((( 468 -((( 469 -(% 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. 470 -))) 471 -))) 192 +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 472 472 473 -((( 474 -(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 475 -))) 194 +The Fifth byte: DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered 476 476 477 -((( 478 -(% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 479 -))) 196 +The Sixth byte: 0 does not trigger interrupt when DI1TORO1 interrupt is triggered 480 480 481 -((( 482 -((( 483 -(% 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. 484 -))) 485 -))) 198 +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 486 486 487 -((( 488 -(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 489 -))) 200 +The 8th byte: DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered 490 490 491 -((( 492 -(% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 493 -))) 202 +The 9th byte: DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered 494 494 495 495
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