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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... ... @@ -2,7 +2,7 @@ 2 2 {{toc/}} 3 3 {{/box}} 4 4 5 -= Overview = 5 += **1. Overview** = 6 6 7 7 Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at: 8 8 ... ... @@ -10,6 +10,42 @@ 10 10 11 11 == == 12 12 13 -= Features for this firmware :=13 += **2. Features for this firmware** = 14 14 15 + 16 +== **2.1 Overview** == 17 + 18 +[[image:image-20220602111219-1.png]] 19 + 20 + 21 +== **2.2. Configure** == 22 + 23 +A's configuration:AT+GROUPMOD=0 B's configuration:AT+GROUPMOD=0 24 + 25 +AT+TXCHS=868700000 AT+TXCHS=869000000 26 + 27 +AT+RXCHS=869000000 AT+RXCHS=868700000 28 + 29 + AT+TRIG1=2,50 AT+TRIG1=2,50 30 + 31 + AT+TRIG2=2,50 AT+TRIG2=2,50 32 + 33 + AT+DI1TODO1=2 AT+DI1TODO1=2 34 + 35 +AT+DI1TORO1=2 AT+DI1TORO1=2 36 + 37 + AT+DI2TODO2=2 AT+DI2TODO2=2 38 + 39 +AT+DI2TORO2=2 AT+DI2TORO2=2 40 + 41 + 42 +== **2.3. Serial port display** == 43 + 44 +[[image:image-20220602111219-2.png]] 45 + 46 + 47 +[[image:image-20220602111219-3.png]] 48 + 49 +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. 50 + 15 15
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