Potentiometer: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 11: | Line 11: | ||
= How to connect it electrically = | = How to connect it electrically = | ||
[[File:PotiConnection1.png|300px]] | |||
= How to control it in MicroPython = | = How to control it in MicroPython = | ||
| Line 32: | Line 30: | ||
Schematic drawing: | Schematic drawing: | ||
[[File:PotiConnection1.png|300px]] | [[File:PotiConnection1.png|300px]] | ||
= Related Tutorial Videos = | = Related Tutorial Videos = | ||
<youtube>gjj5KyK2qGI</youtube> | <youtube>gjj5KyK2qGI</youtube> | ||
Revision as of 00:39, 30 August 2020
Description
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
Slider
How to connect it electrically
How to control it in MicroPython
from machine import Pin, ADC
from time import sleep
pot = ADC(Pin(34))
pot.atten(ADC.ATTN_11DB)
while True:
pot_value = pot.read()
print(pot_value)
sleep(0.5)Here the voltage of Pin 34 is manipulable with the poti:
Schematic drawing:
Related Tutorial Videos