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_Watch_stm

More ST7735 and ST7789 videos:
https://www.youtube.com/watch?v=o3AqITHf0mo&list=PLxb1losWErZ6y6GombzvtwRZ2l7brPv1s
https://www.youtube.com/watch?v=GciLKcWQZK4&list=PLxb1losWErZ7thUyB05phRR3DoiYN_kcD

If you find it useful and you want to buy me a coffee or a beer:
https://www.paypal.me/cbm80amiga

Видео Analog Watch/Clock with STM32 RTC and ST7789 IPS LCD канала cbm80amiga