This is the remote end. Still need to connect the radio links and test them, I have been concentrating on the code for the rest of the timer first.
Simple 1602 dual line 16 character display, using a ptotboard shield for easy soldering, 4 x 4 matrix keyboard. The radio is the Nrf25L01 + PA.
I have several versions of arduino board ans intend using the UNO's to run the display.
Not too sure if ChronoTIR would get upset if I posted photos of the internal - so I will not at this stage.
Follow the link in my previous blog post and download the PDF file to get an idea of how the original worked.
I should be able to post a diagram and working code eventually.
Hey I may even share it on the arduino playground....
Given the dispaly is pretty generic apart from the micro and code driving it, I reckon the concept could be duplicated easily.
Cheers
Warren.