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 Pi, and other popular platforms.
KY-031 SPECIFICATIONS
This module consists of a spring-based sensor, a 10 kΩ resistor and 3 male header pins. The spring emits a high signal when a vibration is detected.
Operating Voltage
3.3V ~ 5V
Output Type
Digital
CONNECTION DIAGRAM
Connect the module’s Power line (middle) and the ground (-) to +5 and GND respectively.
Connect signal (S) to pin 3 on the Arduino.
KY-031
Arduino
S
Pin 3
middle
+5V
–
GND
KY-031 Knock Sensor Module
Default Title
Robot Pi Shop
Pickup available,usually ready in 1 hour
Ground Floor Shop, Sayde Street, Fanar Matn 1202 Fanar Lebanon
