Potentiometer

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Description[edit]

A potentiometer is a resistor that can be mechanically changed. Typically form factors are knobs (turn to change) or sliders. The change of resistance is either linear (resistance changes linear with the angle or distance) or logarithmic.

Potentiometer

Poti.PNG

Slider

Slider.PNG

How to connect it electrically[edit]

PotiConnection1.png

How to control it in MicroPython[edit]

1 from machine import Pin, ADC
2 from time import sleep
3 pot = ADC(Pin(34))
4 pot.atten(ADC.ATTN_11DB)
5 while True:
6   pot_value = pot.read()
7   print(pot_value)
8   sleep(0.5)

Here the voltage of Pin 34 is manipulable with the poti:

PotiConnection2.jpg

Schematic drawing:

PotiConnection1.png


Related Tutorial Videos[edit]