All Sensors
Explore the components
Discover different types of sensors and learn how they work — with real projects, tutorials, and code.
HW-201 Infrared Obstacle Avoidance Sensor
The HW-201 is an infrared obstacle avoidance sensor that detects objects in front of it us...
KY-026 Flame Sensor Module
The KY-026 is a flame sensor module that detects the presence of fire or flame by sensing...
SW-420 Vibration Sensor Module
The SW-420 is a vibration sensor module that detects motion, shock, or vibration. It's com...
KY-004 Push Button Module
The KY-004 is a simple push button module mounted on a small breakout board, making it eas...
KY-023 Analog Joystick Module
The KY-023 is an analog joystick module that allows for two-axis directional input, along...
Tactile Push Button
A simple momentary switch that completes a circuit only while it's being pressed. It's one...
KY-018 LDR Light Sensor
The KY-018 is a Light Dependent Resistor (LDR) module whose resistance changes based on th...
HC-SR501 PIR Motion Sensor
The HC-SR501 is a Passive Infrared (PIR) sensor that detects motion by sensing changes in...
DHT22 Temperature and Humidity Sensor
The DHT22 is a digital sensor that measures both temperature and humidity in the surroundi...
HC-SR04 Ultrasonic Distance Sensor
The HC-SR04 is an ultrasonic sensor that measures distance by sending out sound waves and...