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Ball Switch Sensor Module (KY-020)

SKU: CA4U856Y89
The KY-020 Ball Switch Sensor Module is a simple motion and tilt detection module that uses an internal rolling metal ball switch to detect changes in orientation, vibration, or movement. When the module is tilted or moved beyond a specific angle, the internal ball makes or breaks contact, changing the output state. The module provides a digital output signal that...
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Specifications

Specifications:

Module Type: Ball Switch Sensor Module
Model: KY-020
Sensor Type: Rolling Ball Switch
Detection Method: Mechanical Motion and Tilt Detection
Operating Voltage: 3.3V to 5V DC
Operating Current: Less Than 10mA
Output Type: Digital Output
Signal Logic: TTL Compatible
Switch Type: Normally Open Ball Switch
Response Time: Real-Time Detection
Interface Pins: VCC, GND, S
Detection Function: Tilt, Motion, and Vibration Detection
Indicator LED: Yes
Operating Angle: Orientation Dependent
Mounting Type: Through-Hole Module
PCB Dimensions: Approximately 18.5mm × 15mm
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC

Additional Resources

Ball Switch.PDF

FAQ

1. What is the KY-020 Ball Switch Sensor Module used for?

The module is used to detect tilt, movement, vibration, and orientation changes in electronic projects and automation systems.

2. How does the KY-020 Ball Switch Sensor work?

The sensor contains a rolling metal ball that opens or closes an internal electrical contact when the module is tilted or moved.

3. Can the KY-020 be used with Arduino and ESP32?

Yes, the module provides a digital output and can be directly interfaced with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers.

4. What type of output does the module provide?

The module provides a TTL-compatible digital output signal indicating the current state of the ball switch.

5. What applications commonly use the KY-020 Ball Switch Sensor?

It is commonly used in security alarms, anti-theft devices, tilt detection systems, robotics, vibration monitoring, and educational electronics projects.

View full product details

The KY-020 Ball Switch Sensor Module is a simple motion and tilt detection module that uses an internal rolling metal ball switch to detect changes in orientation, vibration, or movement. When the module is tilted or moved beyond a specific angle, the internal ball makes or breaks contact, changing the output state.

The module provides a digital output signal that can be directly connected to Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontroller platforms. Its compact design, low power consumption, and easy interfacing make it ideal for motion detection systems, anti-theft alarms, robotics, smart devices, and educational electronics projects.

The KY-020 Ball Switch Sensor Module is widely used in projects requiring simple tilt or movement detection without the need for complex sensors.

Key Features

  • Detects tilt, movement, and orientation changes
  • Built-in rolling metal ball switch
  • Digital output signal
  • Fast response to motion
  • Compact and lightweight design
  • Low power consumption
  • Simple interface for microcontrollers
  • Reliable mechanical switching
  • Easy installation and wiring
  • Real-time movement detection
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Suitable for alarm and security systems
  • Durable construction
  • Ideal for educational and DIY projects