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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
TTP223B Digital Capacitive Touch Sensor Module – Momentary Touch Switch for Arduino, ESP32, and Hidden Interface Design

TTP223B Digital Capacitive Touch Sensor Module – Momentary Touch Switch for Arduino, ESP32, and Hidden Interface Design

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FeatureDetails
Driver ICTTP223B
Operating Voltage2.0V to 5.5V DC
Response Time60ms (Fast Mode), 220ms (Low Power)
Output StateActive High (Default)
Board Size24mm x 24mm
Touch SurfaceIntegrated Copper Pad
Price
₹ 25.42 ₹ 25.42
(Tax included)

बारकोड: 72551226

Product Description The TTP223B is a highly reliable digital capacitive touch sensor module designed to replace traditional mechanical buttons and switches. Based on the dedicated TTP223 touch-detection IC, this module triggers a digital output signal whenever a human finger or a conductive object comes near the sensing area. Its unique capacitive technology allows it to detect touch through thin layers of non-metallic materials like glass, plastic, or wood, making it the perfect choice for creating hidden waterproof interfaces or sleek control panels. Compatible with a wide voltage range, it integrates seamlessly with Arduino, ESP32, and Raspberry Pi for modern home automation and industrial UI projects.

Key Features

  • Contactless Operation: Detects touch through non-metallic surfaces, protecting the electronics from dust, moisture, and wear.

  • Low Power Consumption: Features an ultra-low operating current of 1.5uA, making it ideal for battery-operated IoT devices.

  • Momentary Default State: Functions as a momentary switch (On while touched) but can be reconfigured for toggle or active-low modes.

  • Fast Response Time: Boasts a rapid 60ms response speed in high-speed mode, ensuring instant user feedback.

  • Integrated Auto-Calibration: Automatically recalibrates the sensing threshold to adapt to environmental changes in temperature or humidity.

Technical Details

  • Dedicated Touch IC: Features the TTP223-BA6 specialized integrated circuit for high-stability capacitive sensing.

  • Operating Voltage Range: Highly versatile operation from 2.0V DC to 5.5V DC, supporting both 3.3V and 5V systems.

  • Internal Voltage Regulator: Built-in LDO ensures stable sensing performance even if the input power supply fluctuates slightly.

  • Configurable Jumpers: Features solder pads (A and B) on the PCB to toggle between Active High/Low and Momentary/Self-locking modes.

  • Signal Polarity: Default output is Active High; when the sensor is touched, the SIG pin outputs a voltage equal to VCC.

  • Sensing Distance: Optimized for direct touch but can penetrate 0mm to 3mm of non-conductive overlays.

  • Output Drive Capability: The digital signal pin can drive small loads or logic-level MOSFETs directly.

  • Low Quiescent Current: In low-power mode, the current consumption is negligible, significantly extending battery life.

  • Internal Filtering: Features high-frequency noise rejection to prevent false triggers from nearby cellular or WiFi signals.

  • PCB Construction: Industrial-grade FR-4 glass-epoxy board with clear labeling for VCC, GND, and Signal (SIG) pins.

  • Mounting Holes: Includes four M2 mounting holes for secure mechanical attachment to enclosures or panels.

  • Dielectric Support: Works effectively behind acrylic, glass, wood, and plastic without physical contact.

  • Stable Oscillator: Integrated internal timing reference removes the need for external crystals.

  • Logic Level Compatibility: Direct TTL output is compatible with standard CMOS logic and all major development boards.

  • Environmental Tolerance: Designed for long-term operation in industrial environments with a storage temperature up to 125°C.

Prototyping and Engineering Tips from Robogears

  • 9V Battery Use: Do not connect 9V directly to this module. Use a 7805 Voltage Regulator to step down to 5V. Higher voltages will permanently damage the TTP223 sensor IC.

  • 18650 Cell: A single 18650 cell (3.7V - 4.2V) is a perfect power source. Due to the ultra-low current draw, this sensor can run for years on a single charge.

  • IC & Capacitor Tip: If mounting behind a thick plastic panel, add a small 0.1uF ceramic capacitor across VCC and GND to maintain signal stability. If the touch is too sensitive, you can add a tiny 1pF to 50pF capacitor to the internal sensing pad to tune the threshold.

  • Related Products: We recommend pairing this with our Relay Modules for touch-activated lights, Arduino Nano, and LED Ring Indicators.

Package Includes

  • 1 x TTP223B Digital Capacitive Touch Sensor Module.

Disclaimer Image is for illustration purpose only 2-3 lines. Avoid placing the sensing area near metallic frames or large metal objects, as this will interfere with the capacitive field and may cause false triggering.