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4-Channel Touch Sensor Module - TTP224

SKU: 61K7WJZCEE
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4.7 (132 reviews)
The TTP224 4-Channel Touch Sensor Module is a capacitive touch input module designed to replace traditional mechanical push buttons with reliable touch-sensitive controls. Based on the TTP224 capacitive touch detection IC, the module provides four independent touch pads, each with its own digital output, allowing users to easily implement touch interfaces in embedded and electronic projects. The module operates by...
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The TTP224 4-Channel Touch Sensor Module is a capacitive touch input module designed to replace traditional mechanical push buttons with reliable touch-sensitive controls. Based on the TTP224 capacitive touch detection IC, the module provides four independent touch pads, each with its own digital output, allowing users to easily implement touch interfaces in embedded and electronic projects.

The module operates by detecting changes in capacitance when a finger touches or approaches one of the touch pads. It features automatic calibration, low power consumption, and configurable operating modes, including momentary or toggle output, active HIGH or active LOW output, and single-key or multi-key operation. Four onboard LEDs indicate the status of each touch channel, making testing and debugging straightforward.

Operating from 2.4V to 5.5V, the TTP224 module interfaces directly with Arduino, ESP32, STM32, Raspberry Pi, AVR, PIC, and other microcontrollers through digital output pins. It is widely used in home automation, consumer electronics, touch control panels, robotics, smart appliances, and DIY electronics projects.

Key Features

  • Based on the TTP224 capacitive touch sensing IC
  • Four independent capacitive touch keys
  • Non-contact, wear-free touch operation
  • Automatic environmental calibration
  • Four independent digital outputs
  • Configurable momentary or toggle output mode
  • Configurable active HIGH or active LOW outputs
  • Supports single-key and multi-key operation
  • Four onboard status indicator LEDs
  • Low power consumption
  • Fast touch response
  • High immunity to electrical noise
  • Operates through thin non-metallic materials such as plastic or acrylic
  • Compatible with Arduino, ESP32, STM32, Raspberry Pi, AVR, and PIC microcontrollers
  • Ideal replacement for mechanical push buttons

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Capacitive Touch Sensor Module
IC Used: TTP224 Touch Detector IC
Number of Touch Keys: 4
Detection Method: Capacitive Touch Sensing
Operating Voltage: 2.4V to 5.5V DC
Typical Operating Voltage: 3.3V or 5V DC
Operating Current: Low Power (Typically <10µA Standby, Module Dependent)
Output Type: Digital (OUT1–OUT4)
Output Modes: Momentary or Toggle (Configurable)
Output Logic: Active HIGH or Active LOW (Configurable)
Touch Response Time: Approximately 100ms (Fast Mode)
Low Power Response Time: Approximately 200ms
Auto Calibration Time: Approximately 0.5 Seconds After Power-Up
Touch Channels: 4 Independent Channels
Status Indicators: 4 Onboard LEDs
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
PCB Dimensions: Approximately 35mm × 29mm
Mounting Type: PCB Module with Mounting Holes
Compatibility: Arduino UNO, Nano, Mega, ESP32, STM32, Raspberry Pi, PIC, AVR, 8051 and other digital microcontrollers

Additional Resources

Touch Sensor Module.PDF

FAQ

1. What is the TTP224 4-Channel Touch Sensor Module used for?

The TTP224 module is used to replace traditional push buttons with capacitive touch controls in applications such as home automation, touch panels, robotics, consumer electronics, and embedded systems.

2. Can the TTP224 module detect multiple touches simultaneously?

Yes. The module can be configured for single-key or multi-key operation, allowing one or more touch pads to be activated at the same time depending on the selected mode.

3. Is the TTP224 compatible with Arduino and ESP32?

Yes. The module operates from 2.4V to 5.5V and provides digital outputs, making it directly compatible with Arduino, ESP32, STM32, Raspberry Pi, AVR, PIC, and other microcontrollers.

4. Can the touch sensor work through plastic or glass?

Yes. The TTP224 can detect touch through thin non-metallic materials such as plastic, acrylic, glass, wood, or paper, making it suitable for hidden touch button designs.

5. What output modes are supported by the TTP224 module?

The module supports configurable momentary and toggle output modes, along with active HIGH or active LOW output logic, allowing it to adapt to different application requirements.