RT88H01 FAQ
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Q: RT88H01 My RS-485 to Lora adapter part# RT88H01
Will blink RX and TX when power is initiated. But after a few seconds the Rx and Tx lights turns off. The second RT88H01 device stays solid RX and TX lights. Modbus address will not send through the network. Any thoughts?
A:
The first one is normal.
The second one may have entered the AT command mode. Please check whether the CMD pad is short-circuited.