In this article, we connect an KY-020 Tilt switch to an Arduino Uno
The KY-023 is a very basic tilt switch
Depending on the inclination of the module, a switch closes the input pins briefly. This occurs due to the fact that there is a ball inside the switch which short-circuits a contact, depending on the position of the module.
Parts Required
You can connect to the module using dupont style jumper wire.
This should work with other Arduino board – I have tried an Uno and Mega
| Name | Link | |
| Arduino Uno |  |
|
| 37 in one sensor kit |  |
|
| Connecting cables |  |
Schematic/Connection
Connect the module’s Power pin (middle) and ground pin (-) to +5v and GND.
Connect the signal (S) pin to pin 2 on the Arduino.
Code Example
The following code example will switch the onboard LED the Arduino when the module inclination degree changes. Tilt the module to turn the LED on/off.
int Led = 13 ;// define LED Interface
int tiltpin = 2; // define the tilt switch pin
int val ;// define numeric variables val
void setup ()
{
pinMode (Led, OUTPUT) ;// define LED as output interface
pinMode (tiltpin, INPUT) ;//define the output interface tilt switch sensor
}
void loop ()
{
val = digitalRead (tiltpin) ;// read the pin
if (val == HIGH) //When the tilt sensor detects a signal when the switch, LED flashes
{
digitalWrite (Led, HIGH);
}
else
{
digitalWrite (Led, LOW);
}
}
Serial Monitor Output
N/A
Links
https://github.com/getelectronics/ArduinoCode/tree/main/37%20Sensor%20Kit/KY-020_Tilt_Switch