Touch Pads [Variable: 1/4/8/16 Pins]

• Touch pads based on Tontek ICs TTP223 – 1pins, TTP224 – 4pin, TTP 226 – 8 pins, TTP229 – 16 pins
• For 1 ,4, 8 pins, touching indication LED is on board, you can view the status directly from the LEDs when you press it, but not for 16 pins version.
• Can replace traditional mechanical keypads, even can use with dielectric materials as pads, high sensitive human touch sensing
• Direct TTL signal output that can be used by MCUs or arduino
• Very low power consumption, uA level
• Capacitive types touch
• 2.4-5.5V wide range power supply
• Module can set to many different mode, low power consumption mode, IIC mode, key mode, long-time mode, rapid mode, etc, please refer this to the datasheet below. Mode can be set by jumper on board.
• ICs need about 0.8~1.0 second for calibration when started, also auto calibration when all keys are not touched, please check datasheet for more details.

Documentation: schematic, datasheet available on this page.