TTP226 8-Channel Capacitive Touch Sensor Module
TTP226 - 8 Channel Capacitive Touch Sensor Module
The TTP226 is an 8-channel capacitive touch sensor module that detects touch on up to 8 independent pads. It uses the TTP226 IC with adjustable sensitivity and provides a simple I2C interface. Perfect for adding touch buttons, sliders, or proximity detection to your projects.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 8 |
| Operating Voltage | 2.7V - 5.5V |
| Interface | I2C (address 0x5A/0x5B) |
| Response Time | < 60ms per channel |
| Dimensions | 28mm x 17mm |
| Sensitivity | Adjustable via capacitor |
What You Can Build With This
- Capacitive touch button panel for home automation
- Non-contact proximity sensor for interactive installations
- Touch-based musical instrument (e.g., a capacitive piano)
- Replacing mechanical switches with touch sensors in appliances
Compatibility
Works with any microcontroller supporting I2C and 3.3V/5V logic, such as Arduino Uno, ESP32, Raspberry Pi, STM32, and Micro:bit. The module's voltage regulator and level shifter allow direct connection to 5V systems without damage.
Wiring Notes
Connect VCC to 3.3V or 5V, GND to ground, SDA to your controller's SDA pin, and SCL to SCL pin. Add 4.7kΩ pull-up resistors on SDA and SCL if not already present. Keep touch pads away from noise sources for stable readings.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, the module works with Arduino Uno using the Wire library (I2C) at 5V. Just connect SDA to A4 and SCL to A5, and use an appropriate library like TTP226.
How do I adjust the touch sensitivity?
Sensitivity can be changed by replacing the capacitor on the CSEL pin or by modifying the threshold register via I2C commands.
Can it detect touch through acrylic or glass?
Yes, capacitive sensing works through non-conductive materials. You can place a thin layer (up to 5mm) of acrylic, glass, or plastic over the touch pads.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items