TTP223 Capacitive Single Touch Sensor Module (Red)

TTP223 Capacitive Single Touch Sensor Module (Red)
The "Red" version of this module is highly prized for its tiny footprint (about the size of a fingernail) and its solder jumpers (A and B), which allow you to change how the button behaves without writing a single line of code.

 
Why it’s a Design Essential:
• Hidden Interfaces: You can stick this module to the inside of a project box. As long as the enclosure isn't made of metal, the sensor will "see" your finger through the plastic, turning the entire surface of your box into a touch-sensitive button.
• No "Contact Wear": Mechanical buttons eventually fail after thousands of clicks. Since the TTP223 is solid-state, it has a virtually infinite lifespan.
• Configurable Logic: By bridging the tiny solder pads on the back, you can customize the output:
o Jumper A (Output Level): Choose if the signal is HIGH or LOW when touched.
o Jumper B (Toggle Mode): Change it from a "Momentary" switch (on only while touching) to a "Toggle" switch (touch once for ON, touch again for OFF).
• Fast Response: It features a high-speed mode that reacts in approximately 60ms, ensuring there is no noticeable "lag" between a touch and the action.

 
Technical Capabilities:
• Operating Voltage: 2V to 5.5V (Works perfectly with Arduino, ESP32, Raspberry Pi, and even battery-powered 3.7V LiPo projects).
• Low Power Consumption: Draws only micro-amps when idle, making it excellent for "Always-On" battery devices.
• Visual Feedback: Features an onboard red LED that lights up the moment a touch is registered.

 
Best For:
The TTP223 is the primary choice for modern light switches, secret "touch-to-unlock" furniture, waterproof doorbells, and interactive LED art installations.