Quick note, for those who might be banging their head, like I did.
ST HAL library 7 bit I2C address has to be shifted before passed to their functions.
EDIT: Let me google that for you situation. I’ve been working with the official ST documentation, when I just had to google to find this beautiful blog post from 2 years ago.
Before any soldering or programming happens at all, I’ll need to have a general idea of what connects where.
This post presents the schematic for the Secret Santa Clock and a quick explanation of each “module” of the system. Everything from a bird’s-eye perspective that is enough for you to reproduce it.
Filed under DIY, electronic
Castells 