TTP226 8-Channel Capacitive Touch Sensor Module – 8-Key Touch Switch for Arduino
Product Description
The TTP226 8-Channel Capacitive Touch Sensor Module is an electronic touch-detection module designed to replace traditional mechanical push buttons with touch-sensitive inputs. Based on the TTP226 touch-sensing IC, it supports up to eight touch keys, making it suitable for interactive electronic devices, control panels and DIY projects.
Using capacitive sensing technology, the module detects touch through compatible conductive touch pads without requiring a mechanical button press. Its selectable operating and output modes allow developers to configure the module for different touch-control applications, depending on the board's pin configuration.
With a working voltage range of 2.4V to 5.5V, the TTP226 is suitable for many low-voltage electronic projects and compatible microcontroller platforms, including Arduino and ESP32, when the output logic levels are appropriate.
Key Features
8-Channel Touch Detection: Supports up to eight capacitive touch keys.
TTP226 Controller IC: Provides capacitive touch sensing without mechanical switches.
Touch Status Indicators: Onboard indicators help show touch-channel activity, depending on the module version.
Selectable Output Modes: Supports configurable output and operating modes through breakout pins.
Wide Supply Range: Operates from 2.4V to 5.5V.
Low-Power Options: Supports low-power operating configurations.
Mechanical Button Replacement: Enables touch-sensitive control interfaces.
Easy Integration: Suitable for microcontroller-based projects and interactive electronics.
Technical Specifications
Parameter | Specification |
Product Name | 8-Channel Capacitive Touch Sensor Module |
Controller IC | TTP226 |
Number of Touch Channels | 8 |
Sensing Technology | Capacitive touch |
Operating Voltage | 2.4V–5.5V |
Output Mode | Selectable, depending on pin configuration |
Operating Mode | Configurable, depending on module design |
Indicators | Onboard channel indicators, as supplied |
Interface | Touch inputs and digital output signals |
Compatible Platforms | Arduino, ESP32 and other compatible microcontrollers |
Applications
Touch-sensitive control panels
DIY electronic switches
Home automation prototypes
Interactive toys and educational projects
Touch-controlled LED lighting
Smart appliances and embedded systems
Electronic musical or game interfaces
Custom touch keypads
Robotics and microcontroller projects
Package Includes
1 × TTP226 8-Channel Capacitive Touch Sensor Module
Important Notes
Output configuration: Check the module's pin labels and documentation to determine whether the outputs operate in momentary, toggle or another supported mode.
ESP32 compatibility: Although the module can operate at 3.3V, verify the output logic levels before connecting it to a microcontroller.
Touch-pad design: Detection performance depends on electrode size, overlay material, wiring and surrounding electrical noise.
Module variations: Indicator arrangements and configurable modes may vary between board revisions.
The TTP226 8-channel capacitive touch module is a practical option for makers, students and developers building touch-controlled electronic devices without conventional mechanical buttons.
