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 +19,13 @@ 19 19 20 20 == **2.1 Point To Point** == 21 21 22 +=== **2.1.1 Overview** === 22 22 24 + 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:** 28 +=== **2.2.2 Configure** === 28 28 29 29 30 30 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) ... ... @@ -39,162 +39,454 @@ 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 ** == 43 43 44 44 45 +=== **2.2.3 Serial port display** === 46 + 47 + 48 +(% class="wikigeneratedid" %) 45 45 [[image:image-20220602111219-2.png]] 46 46 47 47 52 +(% class="wikigeneratedid" %) 48 48 [[image:image-20220602111219-3.png]] 49 49 55 +(% class="wikigeneratedid" %) 50 50 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. 51 51 52 52 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 + 53 53 == **2.3 AT command** == 54 54 55 55 56 -ATZ : Trig a reset of the MCU 125 +((( 126 +(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 127 +))) 57 57 58 -AT+FDR : Reset Parameters to Factory Default, Keys Reserve 129 +((( 130 +(% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 131 +))) 59 59 60 -AT+FCU : Get or Set the Frame Counter Uplink 133 +((( 134 +(% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 135 +))) 61 61 62 -AT+FCD : Get or Set the Frame Counter Downlink 137 +((( 138 +(% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 139 +))) 63 63 64 -AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 141 +((( 142 +(% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 143 +))) 65 65 66 -AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 145 +((( 146 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 147 +))) 67 67 68 -AT+PMB : Get or Set the preamble (default:8) 149 +((( 150 +(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 151 +))) 69 69 70 -AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000) 153 +((( 154 +(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 155 +))) 71 71 72 -AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12) 157 +((( 158 +(% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 159 +))) 73 73 74 -AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000) 161 +((( 162 +(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 163 +))) 75 75 76 -AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12) 165 +((( 166 +(% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 167 +))) 77 77 78 -AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 169 +((( 170 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 171 +))) 79 79 80 -AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 173 +((( 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 +))) 81 81 82 -AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes) 177 +((( 178 +(% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 179 +))) 83 83 84 -AT+VER : Get firmware version number 181 +((( 182 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 183 +))) 85 85 86 -AT+SEND : Set Custom sent hex data 185 +((( 186 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 187 +))) 87 87 88 -AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0) 189 +((( 190 +(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 191 +))) 89 89 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) 193 +((( 194 +((( 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 +))) 91 91 92 -AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0) 199 +((( 200 +(% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 201 +))) 93 93 94 -AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0) 203 +((( 204 +(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 205 +))) 95 95 96 -AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0) 207 +((( 208 +(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 209 +))) 97 97 98 -AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0) 211 +((( 212 +(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 213 +))) 99 99 100 -AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0) 215 +((( 216 +(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 217 +))) 101 101 102 -AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0) 219 +((( 220 +(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 221 +))) 103 103 223 +((( 224 + 225 +))) 104 104 227 +((( 228 + 229 +))) 105 105 106 -**Example1:** AT+SEND=01020304 will send a payload of 01020304 231 +((( 232 +(% style="color:#4f81bd" %)**Example 1:** 233 +))) 107 107 235 +((( 236 +**AT+SEND=01020304 **will send a payload of 01020304 237 +))) 108 108 109 -i.g. AT+TRIGx=a Trigger directly without triggering time 239 +((( 240 + 241 +))) 110 110 111 -AT+TRIGx=a,b a=0, falling edge; 243 +((( 244 +(% style="color:#4f81bd" %)**Example 2: ** 245 +))) 112 112 113 -a=1, rising edge; 247 +((( 248 +**AT+TRIGx=a **Trigger directly without triggering time 249 +))) 114 114 115 - a=2, falling edge or rising edge. 251 +((( 252 +**AT+TRIGx=a,b** 253 +))) 116 116 117 - b, triggering time in milliseconds 255 +((( 256 +a=0: falling edge; 257 +))) 118 118 119 - AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms 259 +((( 260 +a=1: rising edge; 261 +))) 120 120 263 +((( 264 +a=2: falling edge or rising edge; 265 +))) 121 121 122 -i.g. AT+DI1TODO1= maps value 267 +((( 268 +b: triggering time in milliseconds. 269 +))) 123 123 124 - AT+DI1TORO1= maps value 271 +((( 272 +AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 273 +))) 125 125 126 -AT+DI2TODO2= maps value 275 +((( 276 + 277 +))) 127 127 128 -AT+DI2TORO2= maps value 279 +((( 280 +(% style="color:#4f81bd" %)**Example 3: ** 281 +))) 129 129 283 +((( 284 +**AT+DI1TODO1= maps value** 285 +))) 130 130 287 +((( 288 +**AT+DI1TORO1= maps value** 289 +))) 131 131 291 +((( 292 +**AT+DI2TODO2= maps value** 293 +))) 132 132 295 +((( 296 +**AT+DI2TORO2= maps value** 297 +))) 298 + 299 +((( 300 + 301 +))) 302 + 133 133 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 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" %)((( 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 +((( 137 137 If DIx is high, control ROx to close, 325 +))) 138 138 327 +((( 139 139 if DIx is low, control ROx to open 140 140 ))) 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" %)((( 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 +((( 142 142 If DIx is high, control ROx to open, 338 +))) 143 143 340 +((( 144 144 if DIx is low, control ROx to close 145 145 ))) 146 -|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 343 +))) 344 +|(% style="width:102px" %)((( 345 +3 346 +)))|(% style="width:331px" %)((( 347 +DOx state flip 348 +)))|(% style="width:268px" %)((( 349 +ROx state flip 350 +))) 147 147 148 -i.g. AT+GROUPMOD=0 Set to point to point mode 352 +((( 353 +(% style="color:#4f81bd" %)**Example 4: ** 354 +))) 149 149 150 -AT+GROUPMOD=0,aa Set the TX group that controls the number of aa (The maximum value of aa is 8) 356 +((( 357 +**AT+GROUPMOD=0** Set to point to point mode 358 +))) 151 151 152 -AT+GROUPMOD=1,bb Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 360 +((( 361 +**AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 362 +))) 153 153 364 +((( 365 +((( 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 +))) 154 154 155 -AT+GROUPMOD=0,2 Set to control the TX group of the two RX groups 370 +((( 371 +**AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 372 +))) 156 156 157 -AT+GROUPMOD=1,1 Set the RX group numbered 1 374 +((( 375 +**AT+GROUPMOD=1,1** Set the RX group numbered 1 376 +))) 158 158 159 -AT+GROUPMOD=1,2 Set the RX group numbered 2 378 +((( 379 +**AT+GROUPMOD=1,2** Set the RX group numbered 2 380 +))) 160 160 161 161 162 - 163 163 == **2.4 Data Format** == 164 164 385 +((( 165 165 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 387 +))) 166 166 389 +((( 390 + 391 +))) 167 167 168 -**Payload:** 393 +((( 394 +(% style="color:#4f81bd" %)**Payload:** 395 +))) 169 169 170 170 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 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" %)((( 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 +((( 173 173 DI1& 430 +))) 174 174 432 +((( 175 175 DI1 level 176 -)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)((( 434 +))) 435 +)))|(% style="width:101px" %)((( 436 +DI1TODO1 437 +)))|(% style="width:91px" %)((( 438 +DI1TORO1 439 +)))|(% style="width:111px" %)((( 440 +((( 177 177 DI2& 442 +))) 178 178 444 +((( 179 179 DI2 level 180 -)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 446 +))) 447 +)))|(% style="width:105px" %)((( 448 +DI2TODO2 449 +)))|(% style="width:106px" %)((( 450 +DI2TORO2 451 +))) 181 181 453 +((( 182 182 (% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 455 +))) 183 183 457 +((( 184 184 (% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 459 +))) 185 185 461 +((( 186 186 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 463 +))) 187 187 465 +((( 466 +((( 188 188 (% 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 +))) 189 189 190 -(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 471 +((( 472 +(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 473 +))) 191 191 475 +((( 192 192 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 477 +))) 193 193 479 +((( 480 +((( 194 194 (% 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 +))) 195 195 196 -(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 485 +((( 486 +(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 487 +))) 197 197 489 +((( 198 198 (% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 491 +))) 199 199 200 200
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