RE: Aerobird Challenger Detailed Electronic Analysis
UPDATE 2
I've got the "interposer" PCB layed out and I'm shipping them off to be manufactured. The idea is to have a tiny circuit board that will solder on where the original MCU goes. On top of that board will be a Microchip PIC18F1220. This MCU is smaller (SOIC 20) and has similar functionality with A2D and all of the port pins. I'm going to use an old challenger circuit board to test it out. For those EEs out there, I'm building in the debug functionality on the board so anyone who has the cheap Microchip tools can reprogram it over and over. Hopefully I can be done with the code in about a week.
Once I get the basics down, I think I will build in more functionality, like when you hold the stick up and turn on the transmitter to put it it sport mode. I may do a stick down, left, etc for more aggressive or easier servo acceleration. Any ideas out there?
JC