TTP224 4-way Keypad Capacitive Touch Switch

The TTP224 4-Way Capacitive Touch Module replaces four traditional mechanical buttons with touch-sensitive pads. It operates on 2.0V to 5.5V DC and outputs a digital signal whenever a finger alters the electrical capacitance of a pad. The board calibrates automatically upon power-up and features onboard status LEDs for each channel.Pinout

• VCC: Power input (2.0V 5.5V)
• GND: Ground
• OUT1 OUT4: Digital outputs for pads 1 to 4

Features & Modes

• Adjustable Logic: Configurable via onboard jumper pads for Toggle (on/off) or Momentary (temporary) actions.
• Output State: Can be set to Active High or Active Low signaling.
• Material Penetration: Senses touch through glass, plastic, wood, and acrylic.