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** === 22 22 23 23 [[image:image-20220602111219-1.png||height="472" width="972"]] 24 24 25 25 26 -(% class="wikigeneratedid" id="H2.2.Configure" %) 27 -(% style="color:blue" %)**Configure:** 27 +=== **2.2.2 Configure** === 28 28 29 29 30 30 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) ... ... @@ -41,164 +41,454 @@ 41 41 42 42 43 43 44 -== **2.2 PointToMult-Point** ==44 +=== **2.2.3 Serial port display** === 45 45 46 46 47 +(% class="wikigeneratedid" %) 47 47 [[image:image-20220602111219-2.png]] 48 48 49 49 51 +(% class="wikigeneratedid" %) 50 50 [[image:image-20220602111219-3.png]] 51 51 54 +(% class="wikigeneratedid" %) 52 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. 53 53 54 54 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 + 55 55 == **2.3 AT command** == 56 56 57 57 58 -ATZ : Trig a reset of the MCU 126 +((( 127 +(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 128 +))) 59 59 60 -AT+FDR : Reset Parameters to Factory Default, Keys Reserve 130 +((( 131 +(% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 132 +))) 61 61 62 -AT+FCU : Get or Set the Frame Counter Uplink 134 +((( 135 +(% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 136 +))) 63 63 64 -AT+FCD : Get or Set the Frame Counter Downlink 138 +((( 139 +(% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 140 +))) 65 65 66 -AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 142 +((( 143 +(% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 144 +))) 67 67 68 -AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 146 +((( 147 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 148 +))) 69 69 70 -AT+PMB : Get or Set the preamble (default:8) 150 +((( 151 +(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 152 +))) 71 71 72 -AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000) 154 +((( 155 +(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 156 +))) 73 73 74 -AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12) 158 +((( 159 +(% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 160 +))) 75 75 76 -AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000) 162 +((( 163 +(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 164 +))) 77 77 78 -AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12) 166 +((( 167 +(% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 168 +))) 79 79 80 -AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 170 +((( 171 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 172 +))) 81 81 82 -AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 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 +))) 83 83 84 -AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes) 178 +((( 179 +(% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 180 +))) 85 85 86 -AT+VER : Get firmware version number 182 +((( 183 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 184 +))) 87 87 88 -AT+SEND : Set Custom sent hex data 186 +((( 187 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 188 +))) 89 89 90 -AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0) 190 +((( 191 +(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 192 +))) 91 91 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) 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 +))) 93 93 94 -AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0) 200 +((( 201 +(% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 202 +))) 95 95 96 -AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0) 204 +((( 205 +(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 206 +))) 97 97 98 -AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0) 208 +((( 209 +(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 210 +))) 99 99 100 -AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0) 212 +((( 213 +(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 214 +))) 101 101 102 -AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0) 216 +((( 217 +(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 218 +))) 103 103 104 -AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0) 220 +((( 221 +(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 222 +))) 105 105 224 +((( 225 + 226 +))) 106 106 228 +((( 229 + 230 +))) 107 107 108 -**Example1:** AT+SEND=01020304 will send a payload of 01020304 232 +((( 233 +(% style="color:#4f81bd" %)**Example 1:** 234 +))) 109 109 236 +((( 237 +**AT+SEND=01020304 **will send a payload of 01020304 238 +))) 110 110 111 -i.g. AT+TRIGx=a Trigger directly without triggering time 240 +((( 241 + 242 +))) 112 112 113 -AT+TRIGx=a,b a=0, falling edge; 244 +((( 245 +(% style="color:#4f81bd" %)**Example 2: ** 246 +))) 114 114 115 -a=1, rising edge; 248 +((( 249 +**AT+TRIGx=a **Trigger directly without triggering time 250 +))) 116 116 117 - a=2, falling edge or rising edge. 252 +((( 253 +**AT+TRIGx=a,b** 254 +))) 118 118 119 - b, triggering time in milliseconds 256 +((( 257 +a=0: falling edge; 258 +))) 120 120 121 - AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms 260 +((( 261 +a=1: rising edge; 262 +))) 122 122 264 +((( 265 +a=2: falling edge or rising edge; 266 +))) 123 123 124 -i.g. AT+DI1TODO1= maps value 268 +((( 269 +b: triggering time in milliseconds. 270 +))) 125 125 126 - AT+DI1TORO1= maps value 272 +((( 273 +AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 274 +))) 127 127 128 -AT+DI2TODO2= maps value 276 +((( 277 + 278 +))) 129 129 130 -AT+DI2TORO2= maps value 280 +((( 281 +(% style="color:#4f81bd" %)**Example 3: ** 282 +))) 131 131 284 +((( 285 +**AT+DI1TODO1= maps value** 286 +))) 132 132 288 +((( 289 +**AT+DI1TORO1= maps value** 290 +))) 133 133 292 +((( 293 +**AT+DI2TODO2= maps value** 294 +))) 134 134 135 -(% 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" %)((( 296 +((( 297 +**AT+DI2TORO2= maps value** 298 +))) 299 + 300 +((( 301 + 302 +))) 303 + 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 +((( 139 139 If DIx is high, control ROx to close, 326 +))) 140 140 328 +((( 141 141 if DIx is low, control ROx to open 142 142 ))) 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" %)((( 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 +((( 144 144 If DIx is high, control ROx to open, 339 +))) 145 145 341 +((( 146 146 if DIx is low, control ROx to close 147 147 ))) 148 -|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 344 +))) 345 +|(% style="width:102px" %)((( 346 +3 347 +)))|(% style="width:331px" %)((( 348 +DOx state flip 349 +)))|(% style="width:268px" %)((( 350 +ROx state flip 351 +))) 149 149 150 -i.g. AT+GROUPMOD=0 Set to point to point mode 353 +((( 354 +(% style="color:#4f81bd" %)**Example 4: ** 355 +))) 151 151 152 -AT+GROUPMOD=0,aa Set the TX group that controls the number of aa (The maximum value of aa is 8) 357 +((( 358 +**AT+GROUPMOD=0** Set to point to point mode 359 +))) 153 153 154 -AT+GROUPMOD=1,bb Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 361 +((( 362 +**AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 363 +))) 155 155 365 +((( 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 +))) 156 156 157 -AT+GROUPMOD=0,2 Set to control the TX group of the two RX groups 371 +((( 372 +**AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 373 +))) 158 158 159 -AT+GROUPMOD=1,1 Set the RX group numbered 1 375 +((( 376 +**AT+GROUPMOD=1,1** Set the RX group numbered 1 377 +))) 160 160 161 -AT+GROUPMOD=1,2 Set the RX group numbered 2 379 +((( 380 +**AT+GROUPMOD=1,2** Set the RX group numbered 2 381 +))) 162 162 163 163 164 - 165 165 == **2.4 Data Format** == 166 166 386 +((( 167 167 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 388 +))) 168 168 390 +((( 391 + 392 +))) 169 169 170 -Payload: 394 +((( 395 +(% style="color:#4f81bd" %)**Payload:** 396 +))) 171 171 172 -|**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" %)((( 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 +((( 174 174 DI1& 431 +))) 175 175 433 +((( 176 176 DI1 level 177 -)))|DI1TODO1 178 -|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %) 179 -|(% colspan="2" %)DI1TORO1|(% colspan="2" %)((( 435 +))) 436 +)))|(% style="width:101px" %)((( 437 +DI1TODO1 438 +)))|(% style="width:91px" %)((( 439 +DI1TORO1 440 +)))|(% style="width:111px" %)((( 441 +((( 180 180 DI2& 443 +))) 181 181 445 +((( 182 182 DI2 level 183 -)))|(% colspan="2" %)DI2TODO2|(% colspan="2" %)DI2TORO2|(% colspan="2" %) 184 -| | | | | | | | | | 447 +))) 448 +)))|(% style="width:105px" %)((( 449 +DI2TODO2 450 +)))|(% style="width:106px" %)((( 451 +DI2TORO2 452 +))) 185 185 186 -The first byte: 00 is the broadcast address, 01-08 is the RX group number 454 +((( 455 +(% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 456 +))) 187 187 188 -The second byte: send mapping request when not 0, not request when it is 0 458 +((( 459 +(% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 460 +))) 189 189 190 -The third byte: ACK returned to the sender after the mapping is completed 462 +((( 463 +(% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 464 +))) 191 191 192 -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 466 +((( 467 +((( 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 +))) 193 193 194 -The Fifth byte: DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered 472 +((( 473 +(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 474 +))) 195 195 196 -The Sixth byte: 0 does not trigger interrupt when DI1TORO1 interrupt is triggered 476 +((( 477 +(% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 478 +))) 197 197 198 -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 480 +((( 481 +((( 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 +))) 199 199 200 -The 8th byte: DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered 486 +((( 487 +(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 488 +))) 201 201 202 -The 9th byte: DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered 490 +((( 491 +(% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 492 +))) 203 203 204 204
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