Made another small step today. I've been working on the new panel for the last few days so this little device went onto the back burner.
savpanel26.jpg
But last night I made up the connections to the flying leads to connect it to the outside world - 12V power and earth, input from rev counter and output to hour meter earth.
savpanel27.jpg
This morning it passed its first test - connecting it for the first time to a 12V battery and here's what happened.
savpanel28.jpg
A little red light came on on the processor. I was greatly relieved that it didn't start smoking and fry itself because I'd messed up my connection layout but I obviously won't know that it's actually working until it's connected up and the engine is run. Hopefully that should be in the next couple of days because I've now got to make up my new radio and transponder wiring looms and get the new panel ready to fit into place.
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