Potentiometer

A potentiometer (or ‘variable resistor’) has a spindle that can be moved to change the resistance value of the potentiometer. This can be used to measure rotational or linear movement.

An appropriate value for a PICAXE system is 10k (do not use 100k devices).

Related Commands:

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Schematic

PCB

Read a potentiometer

This program will read a potentiometer (wiper connected to analogue input pin C.0, the ends of the potentiometer resistor between V+ and 0V) and report the value read in the 'b1' variable.

Code Example:
main:	readadc C.0, b1		; Read the potentiometer value
	debug			; Display the value
	pause 1000		; Wait a while
	goto main		; Repeat
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Create Module

A potentiometer may be connected to the generic terminal block create module.

Bill of Materials

DescriptionCodeQty
1k linear potentiometer RES020 1 Buy Now
10k linear potentiometer RES021 1 Buy Now

Simulation

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