Unstable emonTX / emonESP operation

[Robert.Wall]

@Z0l

I connected my serial dongle’s rx to the tx and vice versa

Sadly, and I’ve lost count of the number of times I’ve written this here, the last time was just 9 days ago:

@Robert.Wall

Beware, the serial port on the emonTx is wrongly labelled. The connection marked “Tx” is looking for data incoming from a real Tx, and the connection marked “Rx” is looking for a real Rx that can accept data.

It is even in the FAQ

@Bill.Thomson

Q: I’m having trouble with the serial connection to my programmer - it says ‘programmer not responding’. I have checked all the connections, what could be wrong?