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APRS 51Track X1C3
GPS/Track/DIGI/BT/USB
Setting tips:
Connect the RX TX GND 3 wires of the motherboard ISP port with a USB to TTL data cable.
1. You don't need to enter the instructions word by word.
2. Just enter any character and return to the full list of instructions.
3, in the list, copy the instructions you need to the software send area, modify the parameters,
point to send.
4, pay attention to the end of the instruction plus a carriage return.