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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... ... @@ -54,162 +54,372 @@ 54 54 == **2.3 AT command** == 55 55 56 56 57 +((( 57 57 (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 59 +))) 58 58 61 +((( 59 59 (% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 63 +))) 60 60 65 +((( 61 61 (% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 67 +))) 62 62 69 +((( 63 63 (% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 71 +))) 64 64 73 +((( 65 65 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 75 +))) 66 66 77 +((( 67 67 (% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 79 +))) 68 68 81 +((( 69 69 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 83 +))) 70 70 85 +((( 71 71 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 87 +))) 72 72 89 +((( 73 73 (% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 91 +))) 74 74 93 +((( 75 75 (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 95 +))) 76 76 97 +((( 77 77 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 99 +))) 78 78 101 +((( 79 79 (% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 103 +))) 80 80 105 +((( 81 81 (% 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 +))) 82 82 109 +((( 83 83 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 111 +))) 84 84 113 +((( 85 85 (% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 115 +))) 86 86 117 +((( 87 87 (% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 119 +))) 88 88 121 +((( 89 89 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 123 +))) 90 90 91 91 ((( 126 +((( 92 92 (% 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) 93 93 ))) 129 +))) 94 94 131 +((( 95 95 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 133 +))) 96 96 135 +((( 97 97 (% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 137 +))) 98 98 139 +((( 99 99 (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 141 +))) 100 100 143 +((( 101 101 (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 145 +))) 102 102 147 +((( 103 103 (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 149 +))) 104 104 151 +((( 105 105 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 153 +))) 106 106 155 +((( 156 + 157 +))) 107 107 159 +((( 160 + 161 +))) 108 108 163 +((( 109 109 (% style="color:#4f81bd" %)**Example 1:** 165 +))) 110 110 167 +((( 111 111 **AT+SEND=01020304 **will send a payload of 01020304 169 +))) 112 112 171 +((( 172 + 173 +))) 113 113 175 +((( 114 114 (% style="color:#4f81bd" %)**Example 2: ** 177 +))) 115 115 179 +((( 116 116 **AT+TRIGx=a **Trigger directly without triggering time 181 +))) 117 117 183 +((( 118 118 **AT+TRIGx=a,b** 185 +))) 119 119 187 +((( 120 120 a=0: falling edge; 189 +))) 121 121 191 +((( 122 122 a=1: rising edge; 193 +))) 123 123 195 +((( 124 124 a=2: falling edge or rising edge; 197 +))) 125 125 199 +((( 126 126 b: triggering time in milliseconds. 201 +))) 127 127 203 +((( 128 128 AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 205 +))) 129 129 207 +((( 208 + 209 +))) 130 130 211 +((( 131 131 (% style="color:#4f81bd" %)**Example 3: ** 213 +))) 132 132 215 +((( 133 133 **AT+DI1TODO1= maps value** 217 +))) 134 134 219 +((( 135 135 **AT+DI1TORO1= maps value** 221 +))) 136 136 223 +((( 137 137 **AT+DI2TODO2= maps value** 225 +))) 138 138 227 +((( 139 139 **AT+DI2TORO2= maps value** 229 +))) 140 140 231 +((( 232 + 233 +))) 141 141 142 142 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 143 -|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 144 -|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 145 -|(% 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 +((( 146 146 If DIx is high, control ROx to close, 257 +))) 147 147 259 +((( 148 148 if DIx is low, control ROx to open 149 149 ))) 150 -|(% 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 +((( 151 151 If DIx is high, control ROx to open, 270 +))) 152 152 272 +((( 153 153 if DIx is low, control ROx to close 154 154 ))) 155 -|(% 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 +))) 156 156 284 +((( 157 157 (% style="color:#4f81bd" %)**Example 4: ** 286 +))) 158 158 288 +((( 159 159 **AT+GROUPMOD=0** Set to point to point mode 290 +))) 160 160 292 +((( 161 161 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 294 +))) 162 162 163 163 ((( 297 +((( 164 164 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 165 165 ))) 300 +))) 166 166 302 +((( 167 167 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 304 +))) 168 168 306 +((( 169 169 **AT+GROUPMOD=1,1** Set the RX group numbered 1 308 +))) 170 170 310 +((( 171 171 **AT+GROUPMOD=1,2** Set the RX group numbered 2 312 +))) 172 172 173 173 174 174 == **2.4 Data Format** == 175 175 317 +((( 176 176 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 319 +))) 177 177 321 +((( 322 + 323 +))) 178 178 325 +((( 179 179 (% style="color:#4f81bd" %)**Payload:** 327 +))) 180 180 181 181 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 182 -|=(% 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;" %)1 183 -|(% 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 +((( 184 184 DI1& 362 +))) 185 185 364 +((( 186 186 DI1 level 187 -)))|(% 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 +((( 188 188 DI2& 374 +))) 189 189 376 +((( 190 190 DI2 level 191 -)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 378 +))) 379 +)))|(% style="width:105px" %)((( 380 +DI2TODO2 381 +)))|(% style="width:106px" %)((( 382 +DI2TORO2 383 +))) 192 192 385 +((( 193 193 (% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 387 +))) 194 194 389 +((( 195 195 (% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 391 +))) 196 196 393 +((( 197 197 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 395 +))) 198 198 199 199 ((( 398 +((( 200 200 (% 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. 201 201 ))) 401 +))) 202 202 403 +((( 203 203 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 405 +))) 204 204 407 +((( 205 205 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 409 +))) 206 206 207 207 ((( 412 +((( 208 208 (% 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. 209 209 ))) 415 +))) 210 210 417 +((( 211 211 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 419 +))) 212 212 421 +((( 213 213 (% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 423 +))) 214 214 215 215