DIY: amb/linuxworks Delta-1 relay volume control

serial # 0001 ;) very first build on production pc boards.

 

controller is up front and relay unit is in the rear. controller has 2 LED bargraph displays for debug and 'light show' if desired ;)

 

this unit is meant to be controlled by an arduino (such as our LCDuino-1 controller).

 

 

more info: Delta1

 

online calc: r2r calc

 

Done