After learning about the problems with the ADC and DAC of the XMega I gave up building this power supply until recently when I decided to see for myself how bad things are. I’ve used the header board, a 2.56V reference some potentiometers and a lot of patience.
On the DAC side [...]
I’ve found some information regarding poor performance of the ADC and DAC of the XMEGA micros (see some info here, here, here and here). So far there are some workarounds and new devices might have fixed some problems, but I will not take this micro into account until i have clear info that it [...]
555 contest entry Introduction
You might find yourself needing a low power H bridge for driving a motor like I once did. The 555 IC can drive a load up to 200mA, source or sink, which might make is usable as a driver, if one can control the output as desired.
Although it [...]