Digital Sensor TTP223B Module Capacitive Touch Switch

The Digital Sensor TTP223B Module Capacitive Touch Switch is based on the TTP223B touch sensing IC. It provides a capacitive touch switch alternative to traditional mechanical push buttons.

This module normally outputs low and remains in a low power state. When the circular touch area is pressed, it outputs high and enters a quick response mode. If untouched for 12 seconds, it automatically returns to low power mode.

When mounted behind non metallic surfaces such as plastic, glass, or acrylic, the touch key can be completely hidden. Even a thin layer of paper can be used to cover the touch area while still allowing proper touch detection.

Touch Sensor Interface:
Control interface includes three pins: GND, VCC, and SIG. GND connects to ground, VCC to power, and SIG is the digital signal output. A green LED indicates power status. The touch area is marked with a fingerprint like icon. Four M2 mounting holes make installation easy and allow modular positioning.

Features:

• Low power consumption
• Power supply: 2 to 5.5V DC
• Replaces traditional mechanical buttons
• Four M2 mounting holes for easy installation
• Output pin sink current (at VCC 3V, VOL 0.6V): 8 mA
• Output pin pull up current (at VCC 3V, VOH 2.4V): 4 mA

Package Includes:

• 1 x Digital Sensor TTP223B Module Capacitive Touch Switch