made this last semester, for my 202 class.
suppose to take 120Vac in, but the transformer was to big to place on the board. so it takes 16VAC in and makes +12V & +5V, 4 user inputs. The 5V rail also provided power to USB ports for device charging (attached to the housing. could use some cleaning up but we were on a time crunch.....
just thought i would share.