Hi guys! I need some advice, I need to measure a motor's speed with a tachometer and get an analog output (voltage), but I need it to be proportionally inverse to the tachometer's frequency. The higher the motor's speed, the lower the voltage output. Is it possible with nano? Thanks!! -Carol.

Tachometer to analog output

ruilviana November 10, 2021, 3:12pm 5

Hi
Yes I understand your need. A variable DC output on the output of an Atmega328 needs a circuit called a DAC.
D Digital
A Analog
C Converter

RV mineirin

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