Two custom sensors to use 3x4 matrix keypads with ESPhome. Uses the Arduino Keypad Library.

Two further custom sensors to use 4x4 matrix keypads with PCF8574 using I2C with ESPHome. Uses the Arduino Keypad I2C Library.

This sensor instantly publishes the numerical value of the pressed key. * becomes -6, # becomes -13, because of the ASCII value. After 500ms the value is reset to "Unknown".

This sensor operates the same as the KeypadSensor, but is configured for using the PCF8574 I/O I2C expander.

This sensor gathers all pressed numbers in a string and publishes the hole string when # is pressed. The string is reset, when * is pressed. The string is automatically reset after some time.

This sensor operates the same as the KeypadTextSensor, but is configured for using the PCF8574 I/O I2C expander.