Two Arduino's communicate using HC-12 transceivers: one is only sending, the other is only receiving. Everything fully works as long as baud rates higher than 2400 are used. I tested the HC-12 modules separately in an independent testing jig and they work fine at all specified baud rates. However…

HC-12 serial hardware comms not working below 4800 baud

GolamMostafa May 17, 2018, 5:27pm 4

The 2xHC12 setup of this link does not work at Bd below 9600?

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