So it seems yesterdays RPM failed test was not without its casualties...

The 12-5v module is dead :( RIP as is pin12 on the maple mini... :(

Its a good thing I have 4 more Maple Minis... and 3 more 12-5v modules...

To be honest I think its pretty impressive I've not managed to kill the entire board if not more pins this far down the development... So I think 1 pin so far isn't too bad :P

Ill replace the board when i do the final build. Or until I run out of spare pins to burn :p

Its a good thing these things only cost a couple of quid each.

Though this does continue to raise the question. How am I going to read the RPM signal.

I was using a MOSFET transistor to switch the 12 to a 5 signal. (I may have had the pins mixed up on it, not sure) I guess I'm going to need some kind of protection circuit. Trouble is I'm not an electronics engineer by trade, so I dont know how to make one off the top of my head. Time for more reading.

PS I'm happy to take suggestions if you have ideas how to fix certain problems I will come across.