I have been struggling for about a year now trying to control 0 - 10 volt led lights with my Arduino. The Lights are 120 volt and the driver supplies the 10 volts. By reducing the resistance from 50k ohms (or more) to 0 the light goes from full bright to full dim.
I can not change the driver. I have tried a 16 volt digital pot and was not happy with that as once and a while it would get instantly super hot.
The load is supposed to be 1ma but never over 2ma.
I was able to dim with a dc solid state relay and control that with pwm. This worked great until the manufacturer updated the driver. Now it is unreliable.
It would be so cool to have a resistor act like a dry contact. Have it adjustable like a digital pot. Can any one help me with my project?