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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... ... @@ -26,6 +26,7 @@ 26 26 (% class="wikigeneratedid" id="H2.2.Configure" %) 27 27 (% style="color:blue" %)**Configure:** 28 28 29 + 29 29 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) 30 30 |=**A's configuration**|=**B's configuration** 31 31 |AT+GROUPMOD=0|AT+GROUPMOD=0 ... ... @@ -46,9 +46,7 @@ 46 46 47 47 [[image:image-20220602111219-3.png]] 48 48 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 -))) 52 52 53 53 54 54 == **2.3 AT command** == ... ... @@ -64,7 +64,7 @@ 64 64 65 65 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 66 66 67 -(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 66 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 68 68 69 69 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 70 70 ... ... @@ -82,15 +82,13 @@ 82 82 83 83 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 84 84 85 -(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 84 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 86 86 87 -(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 86 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 88 88 89 89 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 90 90 91 -((( 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 -))) 94 94 95 95 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 96 96 ... ... @@ -113,7 +113,7 @@ 113 113 114 114 (% style="color:#4f81bd" %)**Example 2: ** 115 115 116 -**AT+TRIGx=a 113 +**AT+TRIGx=a **Trigger directly without triggering time 117 117 118 118 **AT+TRIGx=a,b** 119 119 ... ... @@ -154,6 +154,7 @@ 154 154 ))) 155 155 |(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 156 156 154 + 157 157 (% style="color:#4f81bd" %)**Example 4: ** 158 158 159 159 **AT+GROUPMOD=0** Set to point to point mode ... ... @@ -160,9 +160,7 @@ 160 160 161 161 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 162 162 163 -((( 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 -))) 166 166 167 167 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 168 168 ... ... @@ -171,12 +171,13 @@ 171 171 **AT+GROUPMOD=1,2** Set the RX group numbered 2 172 172 173 173 170 + 174 174 == **2.4 Data Format** == 175 175 176 176 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 177 177 178 178 179 - (% style="color:#4f81bd" %)**Payload:**176 +**Payload:** 180 180 181 181 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 182 182 |=(% 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 ... ... @@ -196,17 +196,13 @@ 196 196 197 197 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 198 198 199 -((( 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 -))) 202 202 203 203 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 204 204 205 205 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 206 206 207 -((( 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 -))) 210 210 211 211 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 212 212