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10K Potentiometer

Control

Adjustable resistor whose resistance changes as you turn the shaft; for setting values by hand, such as LED brightness, servo angle, volume or LCD contrast. One outer leg goes to 5V, the other to GND, and the middle leg to an analog pin; analogRead gives a value from 0 to 1023 (on an ESP32, use 3.3V; it reads 0-4095). The legs may not sit firmly in a breadboard; use jumper wires if needed.

Specifications

Resistance

10 kΩ

Taper

Linear (B10K)

Rotation

~300°

Pins

3 (end, wiper, end)

Power

~0.1 - 0.25W

Shaft

6 mm, knurled

Reading

analogRead: 0 - 1023 (Uno), 0 - 4095 (ESP32)

Shop prices

• MotorobitIn stock6.57 ₺
• KomponentciIn stock8.36 ₺
• Direnc.netIn stock8.36 ₺
• Robo90In stock8.93 ₺
• RobotzadeIn stock9.00 ₺
• Modül ElektronikIn stock10.00 ₺
• RobotistanIn stock10.38 ₺
• ElektrovadiIn stock10.82 ₺
• HobiDevreIn stock12.48 ₺
• HatfonPrice at the shop
• SAMM MarketOut of stock3.30 ₺
• Robolink MarketOut of stock10.50 ₺
• F1 DepoOut of stock10.80 ₺
• RobitshopOut of stockPrice at the shop

Prices read from the shops' pages on 22 October 2026. Prices and stock may have changed since; check at the shop before you buy.

Projects with this part

• LED Brightness with a PotentiometerBeginner20 minSet an LED's brightness by turning a potentiometer's knob: with the knob at one end the LED is off, and it gets brighter as you turn towards the other end. The value read and the brightness given to the LED are also written to the Serial Monitor. It teaches reading an analog input with analogRead, turning one range into another with map, and using PWM with analogWrite. No extra library needed.Open project
• Servo with a PotentiometerBeginner25 minAs you turn a potentiometer's knob, an SG90 servo motor turns with it: one end of the knob is 0°, the other 180°. The angle the servo stops at is also written to the Serial Monitor. It teaches adding a library (Servo) to a project, turning a value read with analogRead into an angle with map, and sending a motor to the angle you want with servo.write. The Servo library comes with the Arduino IDE, so there is nothing to install.Open project
• Arduino-Free Dark-Activated LampBeginner25 minA night light with no Arduino and no code, built from just a 9V battery, a BC547 transistor, an LDR and a potentiometer: when it gets dark the LED lights by itself, and it goes out when the light comes back. With the potentiometer you set how dark it must be. It teaches three cornerstones of basic electronics: the voltage divider (the potentiometer and the LDR), the transistor as a switch that turns a large current on and off with a small base current, and limiting an LED's current with a resistor. You see how these parts, used in Arduino projects all the time, work without one.Open project