I haven't posted here in a while since I have not played with my Raspberry-Pi much. I have been working on a couple arduino controlled robots and this week I made a nichrome plastic bender that is powered by a computer atx power supply that was converted into a robotics lab power supply with extreme accuracy in 1.25-11 volts DC using a LM350 voltage regulator IC. I'll add some pictures of that below.
I had planned to add my Raspberry Pi to the Arduino robot via I2C and a level shifter. But I think I may have found a way to make the RPI have more direct control.