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10K timmer potentiometer

10K Trimmer Potentiometer (Through Hole)

20k trimmer potentiometer

20K Through Hole Trimmer Potentiometer

50K Potentiometer Panel Mount

50K Potentiometer Panel Mount (Non Trimmer)

Small red knob for potentiometer

Small Knob for Potentiometer - Black with Red Cap

Potentiometer with adjustable knob.

50K Potentiometer Panel Mount (Non Trimmer) With Knob

A 5K Rotary Potentiometer shown with a pencil for scale.

5K Potentiometer - Rotary

Top view of 50k Trimmer variable resistor potentiometer

50K Trimmer Through Hole

White prototyping breadboard with 30 tie strips and two power rails on each side.

White Prototyping Breadboard (2x30 columns of tie strips and 2x2 rows of power strips)

Clear Semi Transparent Breadboard

Clear Prototyping Breadboard (2x30 columns of tie strips and 2x2 rows of power strips)

Thumbnail: A bundle of 65 jumper wires of various length and color. Bound together with the male connectors shown in the foreground.

Bundle of 65 Male to Male Flexible Jumper Wires


Breadboarding: Adding Two Trimmper Potentiometers to the ADC Channels 1 and 2

Trimmer Potentiometers are small potentiometers intended only to be adjusted on the circuit and these are generally not able to be accessed. For example, a radio has a volume control that my be a standard potentiometer, but if you break open the case and pull out the circuit board, there may be small potentiometers (trimmers) on the board that cam be adjusted with a screwdriver.

The two trimmers are connected to the ADC pins 1 and 2 to adjust a low and high threshold.

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