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Libraries for STM32 (STM32F103C8T6) on pure CMSIS.
LiquidCrystal Arduino library for the DFRobot I2C LCD displays for STEM School
LiquidCrystal Library for MicroPython. The library supports I2C GPIO expanders like PCF8574 and native GPIO communication for flexible interfacing.
The GpioExpander class streamlines GPIO pin management using the NXP PCF8574T I/O expander through I2C in MicroPython, simplifying pin mode configuration, digital value writing to output pins, and reading digital values from input pins.