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8-Channel Touch Sensor Module - TTP226

SKU: IXVUTL2EIR
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The 8-Channel Touch Sensor Module – TTP226 is a capacitive touch input module designed to detect finger touch across 8 independent touch-sensitive channels. Built around the TTP226 capacitive touch detector IC, the module provides a convenient alternative to traditional mechanical push buttons by detecting changes in capacitance when a finger approaches or touches one of the sensing pads. Operating from...
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The 8-Channel Touch Sensor Module – TTP226 is a capacitive touch input module designed to detect finger touch across 8 independent touch-sensitive channels. Built around the TTP226 capacitive touch detector IC, the module provides a convenient alternative to traditional mechanical push buttons by detecting changes in capacitance when a finger approaches or touches one of the sensing pads.

Operating from approximately 2.0V to 5.5V DC at the IC level, the TTP226 supports configurable output behavior, sensitivity adjustment, active-high or active-low operation, and selectable direct, matrix, or serial output modes depending on module configuration. Common breakout modules include 8 onboard touch pads and individual LED status indicators for each channel.

The module is suitable for touch-sensitive control panels, home automation systems, robotics, electronic locks, appliance controls, interactive displays, and embedded user interfaces. It can be interfaced with Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other digital-input microcontrollers.

Key Features

  • Based on the TTP226 capacitive touch sensor IC
  • 8 independent capacitive touch-sensitive channels
  • Replaces conventional mechanical push buttons
  • Touch detection without mechanical contact
  • Individual LED status indicator for each touch channel
  • Wide operating voltage range
  • Adjustable sensitivity configuration
  • Supports active-high and active-low output configuration
  • Configurable direct, matrix, or serial output modes
  • Selectable fast and low-power operating modes
  • Configurable key maximum ON time
  • Compact PCB design
  • Low power consumption
  • Easy integration with microcontrollers
  • Suitable for touch panels and human-machine interfaces

Shipping & Returns

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Specifications

Specifications:

Module Type: 8-Channel Capacitive Touch Sensor Module
Sensor IC: TTP226
Number of Touch Channels: 8
Detection Method: Capacitive Touch Sensing
IC Operating Voltage: 2.0V to 5.5V DC
Typical Module Operating Voltage: 2.4V to 5.5V DC
Operating Current: Approximately 100µA at 3V for the TTP226 IC (Typical)
Output Refresh Rate: Approximately 55Hz at 3V
Sensitivity Levels: Up to 64 Steps at IC Level
Output Type: Digital
Output Modes: Direct / Matrix / Serial, Depending on Configuration
Output Polarity: Configurable Active HIGH or Active LOW
Operating Modes: Fast Mode and Low-Power Mode
Number of Touch Pads: 8
Status Indicators: 8 Individual Touch Status LEDs
Power-On/Recalibration Time: Less than 1 Second at IC Level
PCB Dimensions: Approximately 47mm × 46mm
Mounting Type: PCB Module
Compatibility: Arduino UNO, Nano, Mega, ESP32, STM32, Raspberry Pi, PIC, AVR, 8051 and other digital-input microcontrollers

Additional Resources

8-Channel Touch.PDF

FAQ

1. What is the TTP226 8-Channel Touch Sensor Module used for?

The TTP226 module is used to add multiple capacitive touch inputs to electronic projects. It is commonly used in touch control panels, home automation systems, robotics, electronic locks, smart appliances, and interactive interfaces.

2. How many touch inputs does the TTP226 module provide?

The module provides 8 independent capacitive touch channels, allowing up to eight different touch-sensitive buttons or control functions to be implemented.

3. Is the TTP226 module compatible with Arduino and ESP32?

Yes. The TTP226 module can be interfaced with Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other microcontrollers capable of reading digital input signals.

4. Does the TTP226 module support different output modes?

Yes. Depending on the board configuration, the TTP226 supports different output arrangements, including direct, matrix, and serial output modes. The available configuration options depend on the specific module version and jumper settings.

5. Can the TTP226 detect touch through plastic or glass?

Yes. Capacitive touch sensing can work through thin layers of non-conductive materials such as plastic, glass, acrylic, and similar surfaces. The effective sensing performance depends on material thickness, electrode design, sensitivity settings, and surrounding electrical conditions.