Feather Verification Tests The tests provided here are used to verify the Blues Feather compatible hardware; currently the Swan and Cygnet. The Arduino sketches provided in this repository will validate the board definitions provided by the stm32duino BSP. Communication Protocols I2C SPI LPUART UART USB GPIO Functionality Digital I/O Input Output Analog I/O Input Output PWM Interrupts Power Management 3V3 Regulator Detect Battery Voltage Low-Power Mode