TTP223B capacitive touch switch sensor module with three pins and circular touch pad

TTP223B Pre-Soldered Capacitive Touch Switch Sensor Module

SKU NA061

$4.50 USD Shipping & tax calculated at checkout
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TTP223B capacitive touch switch sensor module detects fingertip touch and outputs a digital trigger for Arduino, ESP32, Raspberry Pi, robotics, wearables, home automation, and prototyping.

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Overview

Product Overview

TTP223B capacitive touch switch sensor module is a compact touch input sensor that detects a fingertip press on its touch pad and outputs a clean digital trigger for replacing mechanical buttons in interactive electronics. Based on the TTP223B touch IC, it is ideal for Arduino, ESP32, Raspberry Pi, and other microcontroller or GPIO projects that need simple human input for lamps, control panels, robots, wearables, smart home interfaces, and rapid prototyping. Use this capacitive touch module to add reliable single-touch control without moving parts, making it useful for sleek enclosures and DIY electronics builds. The header pins ship pre-soldered, so it works out of the box with no soldering required.

Questions & answers

Frequently asked questions

Yes. It provides a simple digital trigger that can be read by Arduino, ESP32, Raspberry Pi, and other microcontroller or GPIO inputs. It is intended for single-touch input in projects that would otherwise use a basic pushbutton.
The header pins are already soldered, so it can be connected with jumper wires without soldering first. You still need to wire it to power, ground, and a suitable digital input on your controller.
The module uses a TTP223B capacitive touch IC and outputs a clean digital signal when a fingertip touches the pad. Use it with a compatible GPIO input and follow your controller’s logic-level requirements for safe wiring.
It is commonly used to replace a mechanical button with a touch-sensitive control. Typical projects include lamps, control panels, robots, wearables, smart home interfaces, sleek enclosures, and quick interactive electronics prototypes.
If the sensor is not responding, check power, ground, and the digital output connection first. Also make sure your code is reading the correct GPIO pin and that the touch pad is accessible to a fingertip.

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What's included

Features & Specs

TTP223B Touch ICUses the TTP223B capacitive touch IC for single-touch input detection.

Digital OutputOutputs a clean digital trigger for microcontroller and GPIO input reading.

Touch Pad InputDetects a fingertip press on the capacitive touch pad without moving parts.

Board CompatibilityWorks with Arduino, ESP32, Raspberry Pi, and other microcontroller projects.

Button ReplacementReplaces a mechanical push button in interactive electronics and control panels.

Common Use CasesSuitable for lamps, robots, wearables, smart home interfaces, and rapid prototyping.

Reference

Documents

Full Product Manual TTP223B Capacitive Touch Switch Sensor Module | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet - TTP223B Touch Switch

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