KY-031 Knock Sensor Module
The KY-031 Knock Sensor module is a vibration sensor that sends a signal when a knock/tap is detected. Compatible with Arduino, ESP8266, ESP32, Teensy, Raspberry … Read more
Switch
KY-021 Mini Magnetic Reed Switch Module
The KY-021 Magnetic Reed Switch module is a switch that is normally open and gets closed when exposed to a magnetic field, sending a digital … Read more
KY-020 Tilt Switch Module
The KY-020 Tilt Switch Sensor module is a switch that reacts to movement. It closes the circuit when it’s tilted to the side as long … Read more
KY-017 Mercury Tilt Switch Module
The KY-017 Mercury Tilt Switch module is a switch that responds to movement. It uses a small mercury ball that completes the circuit when the module … Read more
KY-010 Photo Interrupter Module
The KY-010 Photo Interrupter module is a switch that will trigger a signal when light between the sensor’s gap is blocked. This module is suitable … Read more
KY-002 Vibration Switch Module
The KY-002 Vibration Switch Module detects shaking and knocking. When the module is moved, a spring mechanism will close the circuit sending a short high … Read more
KY-004 Key Switch Module
The KY-004 Key Switch Module is a push button that will close the circuit when pressed, sending a high signal. This module is compatible with … Read more