Chainable and addressable 7-Segment Display based on Padauk PFS154.
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This is a fun little project to use the "3 cent" MCU for an application it is actually well suited for: An intelligent 7 segment display. Each segment consists of a dedicated MCU to control data transmission and update of each segment. My intention is also to use this as a test bed for protocol design.
You can find a detailed writeup here.
Firmware here
Unfortunately not. I assembled two on my own. The parts and PCBs can be readily ordered from LCSC and JLPCB for little money, but the assembly is a bit tedious. You won't even need a programmer for the STM32 on the free-pdk prog, since it comes with USB bootloader.
Tim
Drew Tayman
lfforth
SAYANTAN PAL
ninharp
Do you know anybody selling the free-pdk programmer ready made yet? Somebody on the issues list talked about ordering a batch from Elecrow but no further word.