Red TTP223 Touch button Module Capacitor type Single Channel Touch Sensor
- Supports momentary or latching/toggle modes
- Supports Active High or Active Low output signal modes
- Dimensions: 15mm x 11mm
- Input Voltage: 2V-5.5V DC
- The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V
- Sensitivity can adjust by the capacitance (0~50pF)
- Have two kinds of sampling length by pad option (SLRFTB pin)
- Stable touching detection of human body for replacing traditional direct switch key
- Provides Fast mode and Low Power mode selection by pad option (LPMB pin)
- Provides direct mode toggle mode by pad option (TOG pin)
- Open drain mode by bonding option, OPDO pin is open drain output, Q pin is CMOS output
- All output modes can be selected active high or active low by pad option (AHLB pin)
- Have the maximum on time 100 sec by pad option (MOTB pin)
- Have external power on reset pin (RST pin)
- After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and the function is disabled
- Auto calibration
- Re-calibration period is about 4.0sec, when key has not be touched
- This module is based on capacitive touch-sensing IC TTP223B.
- The TTP223 is a touch pad detector IC replicating a single tactile button.
- This touch detection IC is designed for replacing traditional direct button key with diverse pad size
- This versatile small sensor board is user configurable with on-board shorting pads as activated Low or High, momentary or latching output to suit for various control requirements.
- This touching detection module is designed for replacing traditional mechanical button switch with diverse pad size with no wear and tear problem of mechanical switches.
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