TTP223 Capacitive Touch Sensor

Description

About this item:

The TTP223 is a single-channel capacitive touch sensor IC module that detects finger touches on a pad. It outputs a digital HIGH or LOW signal when touched, functioning like a push-button but without mechanical movement.

Specifications & Features:

• IC Used: TTP223

• Operating Voltage: 2.0V – 5.5V

• Output Type: Digital (HIGH when touched, LOW when untouched – configurable toggle)

• Response Time: ~60 ms (touch), ~220 ms (release)

• Touch Sensitivity: Adjustable via soldering pads (A & B) on back of module

• Output State Modes: Configurable – momentary or toggle

• Current Consumption: < 2.5 µA (standby), ~11 µA (operation)

• Operating Temperature: -20°C to +85°C

• Dimensions: ~24 mm × 24 mm (varies by manufacturer)

• Touch Pad: Copper-plated area on PCB (can be extended externally)

• LED Indicator: Onboard LED lights up on touch detection

Applications:

• Touch-activated switches for Arduino/IoT projects

• Smart appliances and lighting systems

• Interactive DIY electronics

• Replacing mechanical buttons in embedded systems

• Wearable and consumer electronics input control