STM8 DISCOVERY – 7segment serial link (1)

stm8 board posted by (C)takao21203 This is a STM8 Discovery board. I have added a PIC 16f884 and a small 7segment display. I want to program a serial link between the two controllers. Later, a display will be connected to the STM8 chip directly. However, I have some ideas to improve the 7segment decoding/driving, and it is easier to test … Continue reading

working at 32×24 LED matrix, PIC 16f59


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Working at my LED matrix. 768 LEDs! 32×24 pixels. I want to write a 3D graphics demo. There are electrical issues. The display drive did not work correctly and during 3 days I was not able to figure out what’s wrong. So I removed all of the ICs + replaced with more advanced technology. I use a 16f59 microcontroller now … Continue reading

serial LED 7-segment display

I have been working on these for a while now, including to build various prototypes. At one time I used buffer registers to drive the multiplexed LED display, and this works, but it is still quite an effort to wire. I made PCBs based on this technology. The buffer chips still take up considerable PCB space. Then I tested a … Continue reading