Keypad library generic matrix keypads
Project description
micropython-keypad
Implementation for matrix keyboards and keypads.
For now support 8 and 16bit i2c expanders based on PCF8574 and PCF8575
Contributions are welcome
TODO:
- Do more generic class
- Implement optional non-blocking reading (use interrupt if available)
- Read expander state before write to preserve other pin states
- Think about solution to support more keypads (5x4, 4x4, 3x4, invert etc...)
- Implement more interfaces (SPI expander, direct GPIO, more I2C expanders)
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