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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... ... @@ -26,7 +26,6 @@ 26 26 (% class="wikigeneratedid" id="H2.2.Configure" %) 27 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 ... ... @@ -47,160 +47,380 @@ 47 47 48 48 [[image:image-20220602111219-3.png]] 49 49 49 +((( 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 51 52 52 53 53 == **2.3 AT command** == 54 54 55 55 57 +((( 56 56 (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 59 +))) 57 57 61 +((( 58 58 (% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 63 +))) 59 59 65 +((( 60 60 (% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 67 +))) 61 61 69 +((( 62 62 (% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 71 +))) 63 63 73 +((( 64 64 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 75 +))) 65 65 77 +((( 66 66 (% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 79 +))) 67 67 81 +((( 68 68 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 83 +))) 69 69 85 +((( 70 70 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 87 +))) 71 71 89 +((( 72 72 (% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 91 +))) 73 73 93 +((( 74 74 (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 95 +))) 75 75 97 +((( 76 76 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 99 +))) 77 77 78 -(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 101 +((( 102 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 103 +))) 79 79 105 +((( 80 80 (% 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) 107 +))) 81 81 109 +((( 82 82 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 111 +))) 83 83 113 +((( 84 84 (% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 115 +))) 85 85 86 -(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 117 +((( 118 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 119 +))) 87 87 121 +((( 88 88 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 123 +))) 89 89 125 +((( 126 +((( 90 90 (% 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) 128 +))) 129 +))) 91 91 131 +((( 92 92 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 133 +))) 93 93 135 +((( 94 94 (% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 137 +))) 95 95 139 +((( 96 96 (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 141 +))) 97 97 143 +((( 98 98 (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 145 +))) 99 99 147 +((( 100 100 (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 149 +))) 101 101 151 +((( 102 102 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 153 +))) 103 103 155 +((( 156 + 157 +))) 104 104 159 +((( 160 + 161 +))) 105 105 163 +((( 106 106 (% style="color:#4f81bd" %)**Example 1:** 165 +))) 107 107 167 +((( 108 108 **AT+SEND=01020304 **will send a payload of 01020304 169 +))) 109 109 171 +((( 172 + 173 +))) 110 110 175 +((( 111 111 (% style="color:#4f81bd" %)**Example 2: ** 177 +))) 112 112 179 +((( 113 113 **AT+TRIGx=a **Trigger directly without triggering time 181 +))) 114 114 183 +((( 115 115 **AT+TRIGx=a,b** 185 +))) 116 116 187 +((( 117 117 a=0: falling edge; 189 +))) 118 118 191 +((( 119 119 a=1: rising edge; 193 +))) 120 120 195 +((( 121 121 a=2: falling edge or rising edge; 197 +))) 122 122 199 +((( 123 123 b: triggering time in milliseconds. 201 +))) 124 124 203 +((( 125 125 AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 205 +))) 126 126 207 +((( 208 + 209 +))) 127 127 211 +((( 128 128 (% style="color:#4f81bd" %)**Example 3: ** 213 +))) 129 129 215 +((( 130 130 **AT+DI1TODO1= maps value** 217 +))) 131 131 219 +((( 132 132 **AT+DI1TORO1= maps value** 221 +))) 133 133 223 +((( 134 134 **AT+DI2TODO2= maps value** 225 +))) 135 135 227 +((( 136 136 **AT+DI2TORO2= maps value** 229 +))) 137 137 231 +((( 232 + 233 +))) 138 138 139 139 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 140 -|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 141 -|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 142 -|(% 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" %)((( 236 +|=(% style="width: 102px;" %)((( 237 +Maps value 238 +)))|=(% style="width: 331px;" %)((( 239 +DIx to DOx 240 +)))|=(% style="width: 268px;" %)((( 241 +DIx to ROx 242 +))) 243 +|(% style="width:102px" %)((( 244 +0 245 +)))|(% style="width:331px" %)((( 246 +No Action 247 +)))|(% style="width:268px" %)((( 248 +No Action 249 +))) 250 +|(% style="width:102px" %)((( 251 +1 252 +)))|(% style="width:331px" %)((( 253 +If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 254 +)))|(% style="width:268px" %)((( 255 +((( 143 143 If DIx is high, control ROx to close, 257 +))) 144 144 259 +((( 145 145 if DIx is low, control ROx to open 146 146 ))) 147 -|(% 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" %)((( 262 +))) 263 +|(% style="width:102px" %)((( 264 +2 265 +)))|(% style="width:331px" %)((( 266 +If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 267 +)))|(% style="width:268px" %)((( 268 +((( 148 148 If DIx is high, control ROx to open, 270 +))) 149 149 272 +((( 150 150 if DIx is low, control ROx to close 151 151 ))) 152 -|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 275 +))) 276 +|(% style="width:102px" %)((( 277 +3 278 +)))|(% style="width:331px" %)((( 279 +DOx state flip 280 +)))|(% style="width:268px" %)((( 281 +ROx state flip 282 +))) 153 153 284 +((( 154 154 (% style="color:#4f81bd" %)**Example 4: ** 286 +))) 155 155 288 +((( 156 156 **AT+GROUPMOD=0** Set to point to point mode 290 +))) 157 157 292 +((( 158 158 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 294 +))) 159 159 296 +((( 297 +((( 160 160 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 299 +))) 300 +))) 161 161 302 +((( 162 162 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 304 +))) 163 163 306 +((( 164 164 **AT+GROUPMOD=1,1** Set the RX group numbered 1 308 +))) 165 165 310 +((( 166 166 **AT+GROUPMOD=1,2** Set the RX group numbered 2 312 +))) 167 167 168 168 169 169 == **2.4 Data Format** == 170 170 317 +((( 171 171 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 319 +))) 172 172 321 +((( 322 + 323 +))) 173 173 325 +((( 174 174 (% style="color:#4f81bd" %)**Payload:** 327 +))) 175 175 176 176 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 177 -|=(% 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;" %)1 178 -|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)((( 330 +|=(% style="width: 123px;" %)((( 331 +**Size (bytes)** 332 +)))|=(% style="width: 107px;" %)((( 333 +1 334 +)))|=(% style="width: 107px;" %)((( 335 +1 336 +)))|=(% style="width: 107px;" %)((( 337 +1 338 +)))|=(% style="width: 107px;" %)((( 339 +1 340 +)))|=(% style="width: 107px;" %)((( 341 +1 342 +)))|=(% style="width: 107px;" %)((( 343 +1 344 +)))|=(% style="width: 107px;" %)((( 345 +1 346 +)))|=(% style="width: 107px;" %)((( 347 +1 348 +)))|=(% style="width: 107px;" %)((( 349 +1 350 +))) 351 +|(% style="width:123px" %)((( 352 +**Value** 353 +)))|(% style="width:38px" %)((( 354 +address 355 +)))|(% style="width:70px" %)((( 356 +request 357 +)))|(% style="width:52px" %)((( 358 +ACK 359 +)))|(% style="width:127px" %)((( 360 +((( 179 179 DI1& 362 +))) 180 180 364 +((( 181 181 DI1 level 182 -)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)((( 366 +))) 367 +)))|(% style="width:101px" %)((( 368 +DI1TODO1 369 +)))|(% style="width:91px" %)((( 370 +DI1TORO1 371 +)))|(% style="width:111px" %)((( 372 +((( 183 183 DI2& 374 +))) 184 184 376 +((( 185 185 DI2 level 186 -)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 378 +))) 379 +)))|(% style="width:105px" %)((( 380 +DI2TODO2 381 +)))|(% style="width:106px" %)((( 382 +DI2TORO2 383 +))) 187 187 385 +((( 188 188 (% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 387 +))) 189 189 389 +((( 190 190 (% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 391 +))) 191 191 393 +((( 192 192 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 395 +))) 193 193 397 +((( 398 +((( 194 194 (% 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. 400 +))) 401 +))) 195 195 403 +((( 196 196 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 405 +))) 197 197 407 +((( 198 198 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 409 +))) 199 199 411 +((( 412 +((( 200 200 (% 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. 414 +))) 415 +))) 201 201 417 +((( 202 202 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 419 +))) 203 203 421 +((( 204 204 (% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 423 +))) 205 205 206 206