Hi,

I am planning to do a project which will consist of 5 Playstation joysticks (with a pot on the X axis and a pot on the Y axis) and 5 position sensing potentiometer.

http://www.ebay.co.uk/itm/Joystick-...?pt=PC_Viedeospielzubehör&hash=item20c4a5b946

Now my question; is there a microcontroller with 15 Analogue to Digital convertors (ADC) ??
Or is there another way to solve this without using a microcontroller with 15 ADC inputs ??

Thanks in advance.

 

Since the joystick output changes relatively slowly, you could likely use one reasonably fast ADC input with a 16-channel multiplexer such as the CD4067. You rapidly sequence the multiplexer through the 15 inputs (for example a 1kHz rate would take 1ms per sample or 15ms for 15 samples), taking an ADC conversion for each sample of the sequence. The multiplexer requires a 4-bit digital address signal from the microcontroller.