[werk_ag]

When I read "From a very early stage (basically when I ordered the initial boards) I knew that the RX and WD units would essentially sit beside each other", I got a bad feeling... Oh no, the TX module on the receiver unit will be too close to the RX module of the WD unit, this will not work I thought. You found a solution, in the hard way. There is a little and easy trick to do what you want... I will talk about it later.

Very ingenious construction. For me, its very rewarding seeing how each one is able to customize this project to meet their needs and personal taste.

Congratulations. I'm delighted by seeing that your idea of integrating the water level sensor on the project is working.

Thank you for all.