I want to be able to control the output voltage of the LM317 with an Atmel micro controller.
I just do not know what to look for. In my words I want a variable 5k resistor that can be controlled by a Microprocessor. Does such a thing exist, or is there another way.
I have tried switching an array of 8 x NPN transistor controlled by the Atmel, but get conflicting results (voltage output is not linear).
Ray.
I just do not know what to look for. In my words I want a variable 5k resistor that can be controlled by a Microprocessor. Does such a thing exist, or is there another way.
I have tried switching an array of 8 x NPN transistor controlled by the Atmel, but get conflicting results (voltage output is not linear).
Ray.