TTP223B Capacitive Touch Sensor Module by YFUSET – 20pcs 2‑5.5V

Description

Product Overview

The YFUSET TTP223B capacitive touch sensor module is engineered for precision touch detection in compact electronic applications. Built on a robust printed circuit board, the module measures just 0.2 x 0.2 x 0.2 inches and weighs 1.6 ounces, making it ideal for space‑constrained designs. It operates on a wide voltage range of 2.0 to 5.5 V, allowing compatibility with common microcontroller platforms and battery‑powered projects. The sensor surface is available on both the front and back, each offering a 14 mm × 14 mm (0.55 in × 0.55 in) touch area that can sense through up to 6 mm of non‑conductive material, providing flexibility for integration behind protective covers or thin panels. Two functional modes—jog and self‑lock—enable users to choose between momentary activation and toggle‑style operation, expanding the module’s applicability across lighting control, user interfaces, and interactive prototypes.

Usage

Designed for a broad spectrum of indoor applications, this sensor excels in controlling LED modules, light strips, and tabletop lamps where a sleek, button‑less interface is desired. Hobbyists and makers can incorporate the module into DIY car lamp modifications, creating touch‑activated interior lighting without the need for mechanical switches. Its low power consumption and fast response time make it suitable for battery‑operated devices, while the dual‑side touch capability allows designers to place the sensor beneath decorative panels, preserving aesthetic appeal. The module’s four M2 screw positioning holes (2.2 mm diameter) simplify mounting on custom PCBs or prototyping boards, ensuring a stable mechanical connection and precise alignment with other components.

Why Choose Us

YFUSET brings over a decade of experience in sensor technology, delivering products that combine reliability with cost‑effective manufacturing. Each TTP223B module undergoes rigorous quality testing, including touch sensitivity calibration and voltage tolerance verification, to guarantee consistent performance across the entire 20‑piece pack. The company’s commitment to customer support includes detailed datasheets, application notes, and responsive technical assistance, helping engineers troubleshoot integration challenges quickly. Moreover, the module’s design incorporates protective coatings that resist moisture and dust ingress, extending its lifespan in demanding environments such as workshops, studios, and hobbyist labs.

Key Features

• Dual‑side 14 mm touch area detects contact through up to 6 mm, enabling flexible placement behind panels.
• Operates from 2.0 V to 5.5 V, compatible with most microcontroller voltage levels and battery packs.
• Two operation modes—jog (momentary) and self‑lock (toggle)—provide versatile control options for lighting and devices.
• Four M2 screw holes for secure mounting and easy alignment on custom PCBs or prototype boards.
• Comprehensive technical support and documentation from YFUSET ensure smooth integration and long‑term reliability.

FAQ

What voltage range does the TTP223B sensor support?

The sensor works reliably between 2.0 V and 5.5 V, making it suitable for direct connection to most 3.3 V or 5 V microcontroller systems and battery‑powered circuits.

How does the self‑lock mode function?

In self‑lock mode, a single touch toggles the output state: the first touch turns the output high (or low, depending on wiring), and a second touch returns it to the opposite state, allowing simple on/off control without continuous pressure.

Can the sensor be used behind a protective cover?

Yes, the sensor can detect touch through up to 6 mm of non‑conductive material, so it works well behind thin acrylic, glass, or fabric covers, preserving a clean exterior appearance.

Is the module suitable for automotive lighting projects?

The module’s low power draw, compact size, and robust construction make it a good choice for DIY automotive interior lighting, provided the operating voltage stays within the specified range and the environment is not exposed to extreme temperatures or moisture.

What support does YFUSET provide for integration?

YFUSET offers detailed datasheets, wiring diagrams, example code for popular platforms, and a responsive technical support team that can assist with firmware configuration, troubleshooting, and design recommendations.