I'd like to use the 3.5mm wired remote jack on the back of a car stereo that is typically used for factory steering wheel audio control integration to attach my own custom wired remote. I found a schematic online that shows the resistor values needed to control various functions on the head unit. I am specifically interested in the volume up (16k) and volume down (24k). The schematic is for momentary push buttons to activate each function but I would like to use a rotary knob for the volume.
My though was a continuously rotating knob that would pulse 16k ohms when turned clockwise and 24k ohms when turned counterclockwise. I've linked the page below that shows the schematic and resistor values needed.
Can someone help me with how to build a circuit for just the knob part?
Thank you.
My though was a continuously rotating knob that would pulse 16k ohms when turned clockwise and 24k ohms when turned counterclockwise. I've linked the page below that shows the schematic and resistor values needed.
Can someone help me with how to build a circuit for just the knob part?
Thank you.