A Fourth Control Panel

I have stupidly been working on what has become a large piece of software for automatically controlling the signals in the layout - possible because I know which sections are occupied and can track point state changes. Automatic signalling is not trivial as the code needs to understand the complete connectivity in the layout.

One problem I have is that the dapol semaphore signals seem to 'forget' their polarity from time to time so I have to have an easy method of working around that - so I am building a control panel to have a set of switches which can be used to alter the polarity (and one switch to turn all signals to danger to see if any need altering).

I also want to be able to control the lighting system so have put in some WiFi (UDP) control of the PiZeros that run that - so also have some push buttons for controlling the scenic lighting