Using an adjustable resistor

Using an adjustable resistor

Physical computing - Master the challenges and experience how to connect the physical and virtual world

Easy

15 mins

from 8 years on

1What you need

3 clip connectors
adjustable resistor (potentiometer)

2Challenge

Clamp an adjustable resistor (potentiometer) to the Calliope mini. Turn the potentiometer to different positions and show its numerical value on the LED display.

3Solution

Code

Note: The string "*" in front of "show number" helps to recognize the number better on the LED display (beginning of the scrolling text).

Potentiometer

middle leg: analog input (P1)
Outer leg: GND (-)
Outer leg: VCC (+)

This text as well as the image is published under a CC BY-SA 4.0 DE license popup: yes. It was originally published in German popup: yes by phzh popup: yes and translated into English by the Calliope team.