Build a Touch-Sensitive LED Dimmer with the Arduino Uno & TTP223 Sensor Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine a lamp that responds to a light touch — no switch, no clunky knob. This kit puts a capacitive touch dimmer into your hands, letting you cycle through LED brightness levels with each tap on the TTP223 sensor. It’s a real-world prototype for bedside lamps, study lights, or any home automation idea you want to explore.

What You'll Build

You’ll assemble a fully working LED dimmer circuit on a 400-point breadboard. The five white LEDs connect to Arduino’s PWM pins, and with every tap on the TTP223 sensor pad, the brightness steps up or loops back. You’ll see how code translates a touch into smooth, controllable light — a compact model ready to mount in a project enclosure or present at a science exhibition.

What You'll Learn

• Write PWM (analogWrite) code to smoothly dim LEDs through multiple levels
• Interface a capacitive touch sensor (TTP223) with Arduino Uno and read its digital output
• Map sensor states to logic — use conditionals to cycle through brightness steps
• Build a reliable breadboard circuit with current-limiting resistors and proper wiring

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for young makers (ages 8–15) working on CBSE school projects or ATL tinkering lab assignments. B.Tech ECE and EEE beginners will find it a hands-on way to understand PWM and sensor integration, while parents can confidently introduce their child to coding and electronics with a safe, pre-tested bundle. It’s also an engaging demo for Smart India Hackathon ideas or science fair prototypes.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.