Wiki source code of Point to Point Communication of LT-22222-L
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| author | version | line-number | content |
|---|---|---|---|
| 1 | {{box cssClass="floatinginfobox" title="**Contents**"}} | ||
| 2 | {{toc/}} | ||
| 3 | {{/box}} | ||
| 4 | |||
| 5 | = **1. Overview** = | ||
| 6 | |||
| 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 | |||
| 9 | [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]]. | ||
| 10 | |||
| 11 | == == | ||
| 12 | |||
| 13 | = **2. Features for this firmware** = | ||
| 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 | |||
| 51 |