What you'll learn
- Explain how capacitive sensing allows for detection through non-metallic barriers.
- Differentiate between contact-based and contactless sensing methods.
- Interface a digital-output sensor with an Arduino microcontroller.
- Program a basic threshold-based alert system for liquid monitoring.
What's in the kit
- Arduino Uno R3
- Contactless Liquid Level Sensor (XKC-Y25)
- Jumper Wires (M-to-F)×3
- Breadboard (Small)
- USB Cable (A-to-B)
Protocol: digital
Related projects
Project 18
Water Level Sensor
Build a liquid depth monitor that uses the conductivity of water to measure fill levels in real-time.
Project 20
Dust Sensor GP2Y1014AU0F
Build an air quality monitor that detects microscopic smoke and dust particles using infrared light.
Project 17
Hall Effect Sensor (A3144)
Build a solid-state magnetic switch that detects hidden magnetic fields using the power of the Hall Effect.

