Analog Watch/Clock with STM32 RTC and ST7789 IPS LCD

Features: STM32 internal RTC with backup battery was used a few color clock faces taken from the internet one clock face in 240x240 pixel resolution compressed to 4-bits takes only 29K of memory so even 2 could fit in STM32 memory watch hands are are vector based no floating-point arithmetic and slow trigonometric functions were used Source code and connections: https://github.com/cbm80amiga/ST7789_... More ST7735 and ST7789 videos:    • Smooth video playback on STM32 and ST7735      • ST7789 fast SPI library optimized for 16MH...   If you find it useful and you want to buy me a coffee or a beer: https://www.paypal.me/cbm80amiga