TTP224 4-CHANNEL CAPACITIVE TOUCH SWITCH DIGITAL TOUCH

TTP224 4-Channel Capacitive Touch Switch Digital Touch is an advanced touch detection module that provides four independent capacitive touch inputs with digital output signals. Based on the TTP224 IC, this compact module offers reliable touch sensing for control panels, smart home devices, and interactive electronics projects.

Key Features of TTP224 Touch Module:

• • 4 Independent Channels: Supports up to four touch inputs simultaneously
  • Adjustable Sensitivity: Configure via onboard jumper or external capacitors
  • Multiple Output Modes: Toggle, momentary, and latch output options
  • Low Power Consumption: Typical operating current of 2.5μA in standby
  • Easy Integration: Directly interfaces with microcontrollers (3.3V/5V compatible)

Technical Specifications:

• • Operating Voltage: 2.4V to 5.5V DC
  • Output Type: Digital (High/Low level)
  • Response Time: 60-220ms (adjustable)
  • Touch Pad Size: Recommended 10×10mm to 30×30mm
  • Output Current: 8mA (max per channel)
  • Operating Temperature: -20°C to +70°C
  • Board Dimensions: 48mm × 28mm × 8mm

Pin Configuration:

• • VCC: Power supply (2.4-5.5V)
  • GND: Ground connection
  • OUT1-OUT4: Digital outputs for each touch channel
  • TP1-TP4: Touch pad connection points
  • MODE: Output mode selection (toggle/momentary)
  • SENS: Sensitivity adjustment pin

Setup and Configuration:

• • Touch Pad Design:
    • Use copper foil or PCB traces (10-30mm square recommended)
    • Maintain 1-2mm spacing between adjacent pads
  • Sensitivity Adjustment:
    • Onboard jumper for basic sensitivity selection
    • External capacitor (10-50pF) for precise tuning

Applications:

• • Smart Home Control: Touch light switches, fan controls
  • Industrial Panels: Dust/water resistant control interfaces
  • Consumer Electronics: Touch-enabled appliances and gadgets
  • DIY Projects: Interactive art installations, custom controllers

Equivalent Modules:

• • TTP229: 8/16-channel capacitive touch sensor
  • MPR121: 12-channel capacitive touch controller IC

Datasheet:

• • Download TTP224 Technical Documentation

Keywords:

• • TTP224 Touch Module
  • 4-Channel Capacitive Switch
  • Digital Touch Sensor
  • Touch Control Board
  • DIY Touch Interface

Package Includes:

• • 1 × TTP224 4-Channel Touch Module