WeeDougie
New Member
Using a digital potentiometer (e.g. MCP4131 100k) how do you detect when the wiper has reached the limit of its' 'travel'. I shall be supplying it with a clock signal from a 555 Timer and I want it to sweep up & down from limit-to-limit. (I shall be using it as part of a 555 PWM circuit so the output runs up and down a scale - think of it driving a motor which constantly speeds-up and slows-down).