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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... ... @@ -17,13 +17,15 @@ 17 17 = **2. Features for this firmware** = 18 18 19 19 20 -== **2.1 Overview** ==20 +== **2.1 Point To Point** == 21 21 22 - [[image:image-20220602111219-1.png]]22 +=== **2.1.1 Overview** === 23 23 24 +[[image:image-20220602111219-1.png||height="472" width="972"]] 24 24 25 -== **2.2. Configure** == 26 26 27 +=== **2.2.2 Configure** === 28 + 27 27 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) 28 28 |=**A's configuration**|=**B's configuration** 29 29 |AT+GROUPMOD=0|AT+GROUPMOD=0 ... ... @@ -36,14 +36,403 @@ 36 36 |AT+DI2TODO2=2 |AT+DI2TODO2=2 37 37 |AT+DI2TORO2=2|AT+DI2TORO2=2 38 38 39 -== **2.3. Serial port display** == 40 40 42 +(% class="wikigeneratedid" %) 43 +2.2.3 Serial port display 41 41 45 + 46 +(% class="wikigeneratedid" %) 42 42 [[image:image-20220602111219-2.png]] 43 43 44 44 50 +(% class="wikigeneratedid" %) 45 45 [[image:image-20220602111219-3.png]] 46 46 53 +(% class="wikigeneratedid" %) 47 47 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. 48 48 56 + 57 + 58 +== **2.2 Point To Mult-Point ** == 59 + 60 + 61 + 62 + 63 + 64 +((( 49 49 66 +))) 67 + 68 + 69 +== **2.3 AT command** == 70 + 71 + 72 +((( 73 +(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 74 +))) 75 + 76 +((( 77 +(% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 78 +))) 79 + 80 +((( 81 +(% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 82 +))) 83 + 84 +((( 85 +(% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 86 +))) 87 + 88 +((( 89 +(% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 90 +))) 91 + 92 +((( 93 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 94 +))) 95 + 96 +((( 97 +(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 98 +))) 99 + 100 +((( 101 +(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 102 +))) 103 + 104 +((( 105 +(% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 106 +))) 107 + 108 +((( 109 +(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 110 +))) 111 + 112 +((( 113 +(% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 114 +))) 115 + 116 +((( 117 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 118 +))) 119 + 120 +((( 121 +(% 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) 122 +))) 123 + 124 +((( 125 +(% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 126 +))) 127 + 128 +((( 129 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 130 +))) 131 + 132 +((( 133 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 134 +))) 135 + 136 +((( 137 +(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 138 +))) 139 + 140 +((( 141 +((( 142 +(% 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) 143 +))) 144 +))) 145 + 146 +((( 147 +(% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 148 +))) 149 + 150 +((( 151 +(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 152 +))) 153 + 154 +((( 155 +(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 156 +))) 157 + 158 +((( 159 +(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 160 +))) 161 + 162 +((( 163 +(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 164 +))) 165 + 166 +((( 167 +(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 168 +))) 169 + 170 +((( 171 + 172 +))) 173 + 174 +((( 175 + 176 +))) 177 + 178 +((( 179 +(% style="color:#4f81bd" %)**Example 1:** 180 +))) 181 + 182 +((( 183 +**AT+SEND=01020304 **will send a payload of 01020304 184 +))) 185 + 186 +((( 187 + 188 +))) 189 + 190 +((( 191 +(% style="color:#4f81bd" %)**Example 2: ** 192 +))) 193 + 194 +((( 195 +**AT+TRIGx=a **Trigger directly without triggering time 196 +))) 197 + 198 +((( 199 +**AT+TRIGx=a,b** 200 +))) 201 + 202 +((( 203 +a=0: falling edge; 204 +))) 205 + 206 +((( 207 +a=1: rising edge; 208 +))) 209 + 210 +((( 211 +a=2: falling edge or rising edge; 212 +))) 213 + 214 +((( 215 +b: triggering time in milliseconds. 216 +))) 217 + 218 +((( 219 +AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 220 +))) 221 + 222 +((( 223 + 224 +))) 225 + 226 +((( 227 +(% style="color:#4f81bd" %)**Example 3: ** 228 +))) 229 + 230 +((( 231 +**AT+DI1TODO1= maps value** 232 +))) 233 + 234 +((( 235 +**AT+DI1TORO1= maps value** 236 +))) 237 + 238 +((( 239 +**AT+DI2TODO2= maps value** 240 +))) 241 + 242 +((( 243 +**AT+DI2TORO2= maps value** 244 +))) 245 + 246 +((( 247 + 248 +))) 249 + 250 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 251 +|=(% style="width: 102px;" %)((( 252 +Maps value 253 +)))|=(% style="width: 331px;" %)((( 254 +DIx to DOx 255 +)))|=(% style="width: 268px;" %)((( 256 +DIx to ROx 257 +))) 258 +|(% style="width:102px" %)((( 259 +0 260 +)))|(% style="width:331px" %)((( 261 +No Action 262 +)))|(% style="width:268px" %)((( 263 +No Action 264 +))) 265 +|(% style="width:102px" %)((( 266 +1 267 +)))|(% style="width:331px" %)((( 268 +If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 269 +)))|(% style="width:268px" %)((( 270 +((( 271 +If DIx is high, control ROx to close, 272 +))) 273 + 274 +((( 275 +if DIx is low, control ROx to open 276 +))) 277 +))) 278 +|(% style="width:102px" %)((( 279 +2 280 +)))|(% style="width:331px" %)((( 281 +If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 282 +)))|(% style="width:268px" %)((( 283 +((( 284 +If DIx is high, control ROx to open, 285 +))) 286 + 287 +((( 288 +if DIx is low, control ROx to close 289 +))) 290 +))) 291 +|(% style="width:102px" %)((( 292 +3 293 +)))|(% style="width:331px" %)((( 294 +DOx state flip 295 +)))|(% style="width:268px" %)((( 296 +ROx state flip 297 +))) 298 + 299 +((( 300 +(% style="color:#4f81bd" %)**Example 4: ** 301 +))) 302 + 303 +((( 304 +**AT+GROUPMOD=0** Set to point to point mode 305 +))) 306 + 307 +((( 308 +**AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 309 +))) 310 + 311 +((( 312 +((( 313 +**AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 314 +))) 315 +))) 316 + 317 +((( 318 +**AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 319 +))) 320 + 321 +((( 322 +**AT+GROUPMOD=1,1** Set the RX group numbered 1 323 +))) 324 + 325 +((( 326 +**AT+GROUPMOD=1,2** Set the RX group numbered 2 327 +))) 328 + 329 + 330 +== **2.4 Data Format** == 331 + 332 +((( 333 +8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 334 +))) 335 + 336 +((( 337 + 338 +))) 339 + 340 +((( 341 +(% style="color:#4f81bd" %)**Payload:** 342 +))) 343 + 344 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 345 +|=(% style="width: 123px;" %)((( 346 +**Size (bytes)** 347 +)))|=(% style="width: 107px;" %)((( 348 +1 349 +)))|=(% style="width: 107px;" %)((( 350 +1 351 +)))|=(% style="width: 107px;" %)((( 352 +1 353 +)))|=(% style="width: 107px;" %)((( 354 +1 355 +)))|=(% style="width: 107px;" %)((( 356 +1 357 +)))|=(% style="width: 107px;" %)((( 358 +1 359 +)))|=(% style="width: 107px;" %)((( 360 +1 361 +)))|=(% style="width: 107px;" %)((( 362 +1 363 +)))|=(% style="width: 107px;" %)((( 364 +1 365 +))) 366 +|(% style="width:123px" %)((( 367 +**Value** 368 +)))|(% style="width:38px" %)((( 369 +address 370 +)))|(% style="width:70px" %)((( 371 +request 372 +)))|(% style="width:52px" %)((( 373 +ACK 374 +)))|(% style="width:127px" %)((( 375 +((( 376 +DI1& 377 +))) 378 + 379 +((( 380 +DI1 level 381 +))) 382 +)))|(% style="width:101px" %)((( 383 +DI1TODO1 384 +)))|(% style="width:91px" %)((( 385 +DI1TORO1 386 +)))|(% style="width:111px" %)((( 387 +((( 388 +DI2& 389 +))) 390 + 391 +((( 392 +DI2 level 393 +))) 394 +)))|(% style="width:105px" %)((( 395 +DI2TODO2 396 +)))|(% style="width:106px" %)((( 397 +DI2TORO2 398 +))) 399 + 400 +((( 401 +(% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 402 +))) 403 + 404 +((( 405 +(% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 406 +))) 407 + 408 +((( 409 +(% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 410 +))) 411 + 412 +((( 413 +((( 414 +(% 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. 415 +))) 416 +))) 417 + 418 +((( 419 +(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 420 +))) 421 + 422 +((( 423 +(% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 424 +))) 425 + 426 +((( 427 +((( 428 +(% 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. 429 +))) 430 +))) 431 + 432 +((( 433 +(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 434 +))) 435 + 436 +((( 437 +(% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 438 +))) 439 + 440 +
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