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 ... ... @@ -38,8 +38,6 @@ 38 38 |AT+DI2TODO2=2 |AT+DI2TODO2=2 39 39 |AT+DI2TORO2=2|AT+DI2TORO2=2 40 40 41 - 42 - 43 43 == **2.2 Point To Mult-Point ** == 44 44 45 45 ... ... @@ -48,9 +48,7 @@ 48 48 49 49 [[image:image-20220602111219-3.png]] 50 50 51 -((( 52 52 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. 53 -))) 54 54 55 55 56 56 == **2.3 AT command** == ... ... @@ -66,9 +66,9 @@ 66 66 67 67 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 68 68 69 -(% 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) 70 70 71 -(% style="color:#037691" %)**AT+PMB** (%%)**: 68 +(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 72 72 73 73 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 74 74 ... ... @@ -78,67 +78,61 @@ 78 78 79 79 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 80 80 81 -(% style="color:#037691" %)**AT+BW **(%%)**: 78 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 82 82 83 -(% style="color:#037691" %)**AT+CR **(%%)**: 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) 84 84 85 85 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 86 86 87 -(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 84 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 88 88 89 -(% style="color:#037691" %)**AT+SEND **(%%)**: 86 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 90 90 91 91 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 92 92 93 -(% style="color:#037691" %)**AT+GROUPID **(%%)**: 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) 94 94 95 95 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 96 96 97 -(% style="color:#037691" %)**AT+TRIG2 **(%%)**: 94 +(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 98 98 99 -(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: 96 +(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 100 100 101 -(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: 98 +(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 102 102 103 103 (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 104 104 105 -(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: 102 +(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 106 106 107 107 108 108 109 - (% style="color:#4f81bd" %)**Example106 +**Example1:** AT+SEND=01020304 will send a payload of 01020304 110 110 111 -**AT+SEND=01020304 **will send a payload of 01020304 112 112 109 +i.g. AT+TRIGx=a Trigger directly without triggering time 113 113 114 - (% style="color:#4f81bd"%)**Example2: **111 +AT+TRIGx=a,b a=0, falling edge; 115 115 116 - **AT+TRIGx=a**Trigger directly without triggeringtime113 +a=1, rising edge; 117 117 118 - **AT+TRIGx=a,b**115 + a=2, falling edge or rising edge. 119 119 120 - a=0:falling edge;117 + b, triggering time in milliseconds 121 121 122 - a=1:rising edge;119 + AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms 123 123 124 -a=2: falling edge or rising edge; 125 125 126 - b: triggeringtimeinmilliseconds.122 +i.g. AT+DI1TODO1= maps value 127 127 128 -AT+TR IGx=2,50Falling edge or risingedge trigger,and thetrigger time exceeds 50ms.124 + AT+DI1TORO1= maps value 129 129 126 +AT+DI2TODO2= maps value 130 130 131 - (% style="color:#4f81bd"%)**Example3: **128 +AT+DI2TORO2= maps value 132 132 133 -**AT+DI1TODO1= maps value** 134 134 135 -**AT+DI1TORO1= maps value** 136 136 137 -**AT+DI2TODO2= maps value** 138 138 139 -**AT+DI2TORO2= maps value** 140 - 141 - 142 142 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 143 143 |=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 144 144 |(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action ... ... @@ -154,27 +154,27 @@ 154 154 ))) 155 155 |(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 156 156 157 - (%style="color:#4f81bd"%)**Example4:**148 +i.g. AT+GROUPMOD=0 Set to point to point mode 158 158 159 - **AT+GROUPMOD=0**opointtopoint mode150 +AT+GROUPMOD=0,aa Set the TX group that controls the number of aa (The maximum value of aa is 8) 160 160 161 - **AT+GROUPMOD=0,aa**Set theTX groupthatcontrolsthe numberof aa(The maximum value of aa is 8)152 +AT+GROUPMOD=1,bb Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 162 162 163 -**AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 164 164 165 - **AT+GROUPMOD=0,2**155 +AT+GROUPMOD=0,2 Set to control the TX group of the two RX groups 166 166 167 - **AT+GROUPMOD=1,1**157 +AT+GROUPMOD=1,1 Set the RX group numbered 1 168 168 169 - **AT+GROUPMOD=1,2**159 +AT+GROUPMOD=1,2 Set the RX group numbered 2 170 170 171 171 162 + 172 172 == **2.4 Data Format** == 173 173 174 174 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 175 175 176 176 177 - (% style="color:#4f81bd" %)**Payload:**168 +**Payload:** 178 178 179 179 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 180 180 |=(% 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