Name: TTP223 Capacitive Touch Sensor Module | Arduino DIY Switch
Brand: Sun Cheong Computer Company Limited
Price: 10.0 HKD
Availability: InStock

Short Product Description

Upgrade your electronics projects with the ultra-compact TTP223 Capacitive Touch Sensor Module. Designed to replace traditional mechanical buttons, this single-channel switch offers reliable, wear-free triggering for Arduino, Raspberry Pi, and custom DIY builds. Featuring customizable self-locking and jog modes, it provides the precise control your next smart device needs.

Key Features

Capacitive Sensing Technology: Eliminates mechanical wear and tear, ensuring a vastly longer lifespan than traditional tactile switches.
4 Configurable Output Modes: Solder pads A and B allow you to set momentary or toggle functions, giving you total control over the switch behavior.
Wide Voltage Compatibility (2.5V-5.5V): Easily integrates with both 3.3V and 5V systems, perfect for Arduino, ESP32, and Raspberry Pi.
Compact Footprint (15x11mm): Fits into the tightest enclosures, ideal for space-constrained DIY and engineering projects.
Non-Contact Penetration: Can sense touch through thin non-metallic materials, enabling sleek, waterproof user interfaces.

Full Product Description

Revolutionize Your Control Interfaces with Touch Technology

Physical buttons wear out, collect dust, and often limit the sleek aesthetic of modern device design. The TTP223 Touch Button Module solves this by offering a highly sensitive, durable capacitive touch interface. Whether you are prototyping a smart home control panel or building an interactive STEM educational kit, this module delivers instantaneous, bounce-free response.

Highly Customizable Trigger Modes

Flexibility is at the core of this module. By simply bridging the A and B solder pads, you can configure the exact output behavior you need:

Jog Mode (Momentary): The output changes only while your finger is on the sensor.
Self-Locking Mode (Toggle): One touch turns it on, the next touch turns it off.
Active High/Low: Configure the baseline TTL output to suit your specific microcontroller logic.

Ultra-Compact & Easy to Integrate

Measuring just 15mm x 11mm, this sensor can be hidden behind non-metallic panels (like glass, plastic, or acrylic) up to a few millimeters thick, allowing for completely seamless, waterproof designs. It operates on a wide voltage range of 2.5V to 5.5V, making it universally compatible with standard 3.3V and 5V logic systems.

Technical Specifications

Model: TTP223 capacitive touch sensor module
Sensor type: Capacitive touch (single‑channel)
Channels: 1 (single channel)
Operating voltage: 2.5 V – 5.5 V DC (typical range ≈2‑5.5 V DC)
Module size: 15 mm × 11 mm
Output type: Digital TTL output (can be configured as active high or active low via jumper/solder pad)
Trigger modes:Jog (momentary) mode: output pulses only while the pad is touchedSelf‑locking (toggle) mode: toggles output state on each touch
Default state:Output can be configured as active high or active low by link/jumper settings (e.g., A/B pads or AHLB option)

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q. How do I wire the TTP223 to an Arduino?
A. Wiring is straightforward. Connect VCC to your board's 3.3V or 5V pin, GND to ground, and the I/O pin to any digital input pin on your microcontroller to read the signal.

Q. What is the purpose of the A and B solder pads?
A. The A and B pads allow you to change the module's operating mode. Pad A changes the default output state (High or Low), while Pad B switches between momentary (Jog) and toggle (Self-locking) modes.

Q. Can this sensor detect touch through plastic or glass?
A. Yes, the TTP223 can detect capacitive changes through thin, non-conductive materials like plastic, glass, or acrylic (typically 2-3mm thick), making it perfect for hidden switches.

Target Users / Applications

STEM Educators & Students: Creating interactive learning projects.
DIY Makers & Hobbyists: Upgrading custom electronics, smart lighting, and 3D printed enclosures.
Electronic Engineers: Rapid prototyping for consumer appliance interfaces.