No feeds coming in over wireless

[Bill.Thomson]

@greentangerine

15:32:40,573 DEBUG    MainThread Opening serial port: /dev/ttyAMA0 @ 38400 bits/s
2020-08-10 15:32:42,576 WARNING  MainThread Device communication error - check settings

emonHub is complaining about a data comm error.
Changing the comm port data rate to 9600 bps should fix it.
Ref: RFM12B with emonTH - no input appearing in emoncms