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ACEBOTT OEM Original Digital Signal High Level TTP223B Capacitive Touch Switch Sensor Module Electronics Components for Arduino
Product Description
Products Description
Touch sensor is a kind of capacitive touch switch module, which can detect and respond to human touch. It has a built-in touch detection IC (TTP223B), which is able to convert the user’s touch action into electrical signals for interactive interaction with the device. The touch sensor outputs a low level when we touch a specific location with our finger, and switches to output a high level when there is no touch.
Applications: Widely used in touch screen mobile phones, tablet computers, smart watches, smart home, etc.
Technical Specifications
| Operating voltage | 3.3~5V |
| Operating temperature | -10°C~+60°C |
| Default output level | High level |
| Output signal | Digital signal |
| Size | 3.16cm*2.38cm |
Pinout Configuration (ESP32 Connection)
| Touch Sensor | ESP32 |
|---|---|
| VCC | 5V |
| GND | GND |
| CLK | SCL |
| DIO | SDA |
Note: Expansion board is attached to esp32 controller board.
Frequently Asked Questions
What integrated circuit powers this touch sensor module?
The module integrates a dedicated TTP223B capacitive touch detection IC, which reliably captures human touch and converts it into standard digital signals.
What is the required operating voltage range?
The sensor operates on a versatile DC voltage range from 3.3V to 5V, making it fully compatible with both 3.3V logic microcontrollers (like ESP32) and 5V systems.
How does the output state switch upon physical touch?
Under normal non-touch conditions, the module outputs a default high-level digital signal. When a user's finger touches the active sensing area, it shifts to a low-level signal.
How are the pins connected to an ESP32 board?
The sensor connects directly to an ESP32 extension setup via: VCC to 5V, GND to GND, CLK to SCL, and DIO to SDA.
What environmental temperatures can this module withstand?
This capacitive switch module functions reliably within an operating temperature range of -10°C to +60°C.
What are the module dimensions?
The physical PCB form factor of the module measures exactly 3.16cm in length by 2.38cm in width.
