bootloader USB icon no longer visible when an initialized flash cart has been detected
Update Arduboy2 library to 5.2.1 bootloader support for alternate flash chipselect SDA reverted Sprites.cpp added checkBatteryState checkBatteryStateLED functions to Arduboy2 library update cathy3K bootloader with menu scrolling and progressbar
Optimized bootloader Added progressbar support for SSD132x displays
all 1-bit display bootloaders will show a progressbar during flashing.