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 ... ... @@ -40,7 +40,6 @@ 40 40 |AT+DI2TORO2=2|AT+DI2TORO2=2 41 41 42 42 43 - 44 44 == **2.2 Point To Mult-Point ** == 45 45 46 46 ... ... @@ -49,91 +49,99 @@ 49 49 50 50 [[image:image-20220602111219-3.png]] 51 51 50 +((( 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. 52 +))) 53 53 54 54 55 55 == **2.3 AT command** == 56 56 57 57 58 -ATZ : 58 +(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 59 59 60 -AT+FDR : Reset Parameters to Factory Default, Keys Reserve 60 +(% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 61 61 62 -AT+FCU : Get or Set the Frame Counter Uplink 62 +(% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 63 63 64 -AT+FCD : Get or Set the Frame Counter Downlink 64 +(% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 65 65 66 -AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 66 +(% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 67 67 68 -AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 68 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 69 69 70 -AT+PMB : Get or Set the preamble (default:8) 70 +(% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 71 71 72 -AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000) 72 +(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 73 73 74 -AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12) 74 +(% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 75 75 76 -AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000) 76 +(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 77 77 78 -AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12) 78 +(% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 79 79 80 -AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 80 +(% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 81 81 82 -AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 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 -AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes) 84 +(% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 85 85 86 -AT+VER : Get firmware version number 86 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 87 87 88 -AT+SEND : Set Custom sent hex data 88 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 89 89 90 -AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0) 90 +(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 91 91 92 -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) 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 94 -AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0) 94 +(% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 95 95 96 -AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0) 96 +(% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 97 97 98 -AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0) 98 +(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 99 99 100 -AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0) 100 +(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 101 101 102 -AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0) 102 +(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 103 103 104 -AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0) 104 +(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 105 105 106 106 107 107 108 - i.g.AT+SEND=01020304 willsend aayloadof 01020304108 +(% style="color:#4f81bd" %)**Example 1:** 109 109 110 +**AT+SEND=01020304 **will send a payload of 01020304 110 110 111 -i.g. AT+TRIGx=a Trigger directly without triggering time 112 112 113 - AT+TRIGx=a,b=0, fallingedge;113 +(% style="color:#4f81bd" %)**Example 2: ** 114 114 115 - a=1,rising;115 +**AT+TRIGx=a **Trigger directly without triggering time 116 116 117 - a=2,falling edge or rising edge.117 +**AT+TRIGx=a,b** 118 118 119 - b, triggeringtimein milliseconds119 +a=0: falling edge; 120 120 121 - AT+TRIGx=2,50Falling edge orrising edgetrigger, and the trigger time exceeds 50ms121 +a=1: rising edge; 122 122 123 +a=2: falling edge or rising edge; 123 123 124 -i .g.AT+DI1TODO1=mapsvalue125 +b: triggering time in milliseconds. 125 125 126 - DI1TORO1=mapsvalue127 +AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 127 127 128 -AT+DI2TODO2= maps value 129 129 130 - AT+DI2TORO2=mapsvalue130 +(% style="color:#4f81bd" %)**Example 3: ** 131 131 132 +**AT+DI1TODO1= maps value** 132 132 134 +**AT+DI1TORO1= maps value** 133 133 136 +**AT+DI2TODO2= maps value** 134 134 135 -(% style="width:706px" %) 136 -|(% style="width:102px" %)Maps value|(% style="width:331px" %)DIx to DOx|(% style="width:268px" %)DIx to ROx 138 +**AT+DI2TORO2= maps value** 139 + 140 + 141 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 142 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 137 137 |(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 138 138 |(% 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" %)((( 139 139 If DIx is high, control ROx to close, ... ... @@ -147,58 +147,56 @@ 147 147 ))) 148 148 |(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 149 149 150 - i.g.AT+GROUPMOD=0 Settopointto pointmode156 +(% style="color:#4f81bd" %)**Example 4: ** 151 151 152 -AT+GROUPMOD=0 ,aaSet the TX groupthat controlsthe numberofaa (The maximum valueof aais8)158 +**AT+GROUPMOD=0** Set to point to point mode 153 153 154 -AT+GROUPMOD= 1,bbo theRX group controlledbytheTX group,numberedbb(The maximum value of aa is 8)160 +**AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 155 155 162 +**AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 156 156 157 -AT+GROUPMOD=0,2 Set to control the TX group of the two RX groups 164 +**AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 158 158 159 -AT+GROUPMOD=1,1 Set the RX group numbered 1 166 +**AT+GROUPMOD=1,1** Set the RX group numbered 1 160 160 161 -AT+GROUPMOD=1,2 Set the RX group numbered 2 168 +**AT+GROUPMOD=1,2** Set the RX group numbered 2 162 162 163 163 164 - 165 165 == **2.4 Data Format** == 166 166 167 167 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 168 168 169 169 170 -Payload: 176 +(% style="color:#4f81bd" %)**Payload:** 171 171 172 -|**Size (bytes)**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|**1** 173 -|**Value**|(% colspan="2" %)address|(% colspan="2" %)request|(% colspan="2" %)ACK|(% colspan="2" %)((( 178 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 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;" %)1 180 +|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)((( 174 174 DI1& 175 175 176 176 DI1 level 177 -)))|DI1TODO1 178 -|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %) 179 -|(% colspan="2" %)DI1TORO1|(% colspan="2" %)((( 184 +)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)((( 180 180 DI2& 181 181 182 182 DI2 level 183 -)))|(% colspan="2" %)DI2TODO2|(% colspan="2" %)DI2TORO2|(% colspan="2" %) 184 -| | | | | | | | | | 188 +)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 185 185 186 -The first byte: 00 is the broadcast address, 01-08 is the RX group number 190 +(% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 187 187 188 -The second byte: send mapping request when not 0, not request when it is 0 192 +(% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 189 189 190 -The third byte: ACK returned to the sender after the mapping is completed 194 +(% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 191 191 192 -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 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. 193 193 194 -The Fifth byte: DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered 198 +(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 195 195 196 -The Sixth byte: 0 does not trigger interrupt when DI1TORO1 interrupt is triggered 200 +(% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 197 197 198 -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 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. 199 199 200 -The 8th byte: DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered 204 +(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 201 201 202 -The 9th byte: DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered 206 +(% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 203 203 204 204