Components

To build your embedded device, you connect sensors, actuators, displays and other parts to your microcontroller. This section covers the most common components and how to use them.

Light Dependent Resistor (LDR)

Light Dependent Resistor

Build an application that responds to the amount of light in the environment.

DHT11

DHT11 temperature and humidity sensor

Measure temperature and humidity with “ok” accuracy using the DHT11.

LCD display

16x2 LCD display

Show information from your device on a character LCD.

Push buttons

Tactile push button

Give users a way to interact: press a button to send input.

Potentiometer

Set a volume, scroll a menu, or pick any value with a rotating knob.

Stepper motor

Stepper motor with driver board

Move left, right, or to any position in precise steps.

Servo motor

SG90 servo motor

Sweep from 0° to 90° in a fraction of a second.

Active buzzer

BEEP BEEP BEEP — a ready-made tone when you apply power.

Passive buzzer

BeEp bEeP BEEP — play your own pitches with a PWM signal.

LED

Shine a light on your project — red, white, blue, or even RGB.

7 Segment Display

7 segment display

Show the time, a score, or any number without much extra hardware.