TTP223 Touch Key Switch Module Touching Button Self-Locking/No-Locking Capacitive Switches Single C

Input Voltage : 2 Volt - 5.5 Volts DC. Sensitivity can adjust by the capacitance(0~50pF). Have an external power-on reset pin(RST pin). After power-on have about 0.5sec stable-time, during the time do not touch the keypad, and the function is disabl...  more

Input Voltage : 2 Volt - 5.5 Volts DC. Sensitivity can adjust by the capacitance(0~50pF). Have an external power-on reset pin(RST pin). After power-on have about 0.5sec stable-time, during the time do not touch the keypad, and the function is disabled. The re-calibration period is about 4.0 sec when the key has not to be touched.     Less