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 ... ... @@ -38,7 +38,6 @@ 38 38 |AT+DI2TODO2=2 |AT+DI2TODO2=2 39 39 |AT+DI2TORO2=2|AT+DI2TORO2=2 40 40 41 - 42 42 == **2.2 Point To Mult-Point ** == 43 43 44 44 ... ... @@ -47,9 +47,7 @@ 47 47 48 48 [[image:image-20220602111219-3.png]] 49 49 50 -((( 51 51 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. 52 -))) 53 53 54 54 55 55 == **2.3 AT command** == ... ... @@ -65,7 +65,7 @@ 65 65 66 66 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 67 67 68 -(% 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) 69 69 70 70 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 71 71 ... ... @@ -77,15 +77,15 @@ 77 77 78 78 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 79 79 80 -(% style="color:#037691" %)**AT+BW **(%%)**: 78 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 81 81 82 82 (% 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) 83 83 84 84 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 85 85 86 -(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 84 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 87 87 88 -(% style="color:#037691" %)**AT+SEND **(%%)**: 86 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 89 89 90 90 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 91 91 ... ... @@ -112,7 +112,7 @@ 112 112 113 113 (% style="color:#4f81bd" %)**Example 2: ** 114 114 115 -**AT+TRIGx=a 113 +**AT+TRIGx=a **Trigger directly without triggering time 116 116 117 117 **AT+TRIGx=a,b** 118 118 ... ... @@ -153,6 +153,7 @@ 153 153 ))) 154 154 |(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 155 155 154 + 156 156 (% style="color:#4f81bd" %)**Example 4: ** 157 157 158 158 **AT+GROUPMOD=0** Set to point to point mode ... ... @@ -168,12 +168,13 @@ 168 168 **AT+GROUPMOD=1,2** Set the RX group numbered 2 169 169 170 170 170 + 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 - (% style="color:#4f81bd" %)**Payload:**176 +**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