replace 10 k trimmer with arduino

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hi replace 10 k trimmer on  boiler central board software controlled arduinoboard  change work logic of boiler.

in essential possible emulate simple variable linear resistor with  arduino port? , how?
i wish merry new year , liek thank support.
alessandro
 

quote
is possible emulate simple variable linear resistor  an arduino port?
no, can control digital potentiometer arduino.

with digital pot have careful voltages, , realize it's not totally isolated fro power supply & control signals.


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