I'm working on a custom ATMega328p based board with RFM69W module. It's been working great, I soldered probably 5 boards now. But I'm having weirdest issue with RFM69 on last one...
RF module seems to be getting partially bricked, specifically part of the circuit that receives data.
It transmits ok, but just does not receive anything...
First time it happened when I just soldered everything together, it was transmitting but not receiving ACK.
I checked every millimeter of the board, and finally concluded it was bad RFM69 module. So I de-soldered it and, and soldered new one. Without even touching code in the flash it was working! Sent a faulty one to the supplier.
That board has been working no-stop for almost a month, and now I have same issue. RFM69 refuses to receive data... Something obviously fried, but I have no idea how. Has anyone seen something like this?
This is extremely frustrating as there's only one RFM supplier in the US and this is not the first time I'm having issue with these chips (i.e.
some 433Mhz were mislabeled as 915 Mhz)...