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 ... ... @@ -47,7 +47,9 @@ 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** == ... ... @@ -63,7 +63,7 @@ 63 63 64 64 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 65 65 66 -(% style="color:#037691" %)**AT+SYNC** (%%)**:** 67 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 67 67 68 68 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 69 69 ... ... @@ -81,13 +81,15 @@ 81 81 82 82 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 83 83 84 -(% style="color:#037691" %)**AT+VER **(%%)**:** 85 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 85 85 86 -(% style="color:#037691" %)**AT+SEND **(%%)**: 87 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 87 87 88 88 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 89 89 91 +((( 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) 93 +))) 91 91 92 92 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 93 93 ... ... @@ -110,7 +110,7 @@ 110 110 111 111 (% style="color:#4f81bd" %)**Example 2: ** 112 112 113 -**AT+TRIGx=a 116 +**AT+TRIGx=a **Trigger directly without triggering time 114 114 115 115 **AT+TRIGx=a,b** 116 116 ... ... @@ -151,7 +151,6 @@ 151 151 ))) 152 152 |(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 153 153 154 - 155 155 (% style="color:#4f81bd" %)**Example 4: ** 156 156 157 157 **AT+GROUPMOD=0** Set to point to point mode ... ... @@ -158,7 +158,9 @@ 158 158 159 159 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 160 160 163 +((( 161 161 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 165 +))) 162 162 163 163 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 164 164 ... ... @@ -167,13 +167,12 @@ 167 167 **AT+GROUPMOD=1,2** Set the RX group numbered 2 168 168 169 169 170 - 171 171 == **2.4 Data Format** == 172 172 173 173 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 174 174 175 175 176 -**Payload:** 179 +(% style="color:#4f81bd" %)**Payload:** 177 177 178 178 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 179 179 |=(% 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 ... ... @@ -193,13 +193,17 @@ 193 193 194 194 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 195 195 199 +((( 196 196 (% 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 +))) 197 197 198 198 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 199 199 200 200 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 201 201 207 +((( 202 202 (% 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 +))) 203 203 204 204 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 205 205