LED display matrix using PIC16F1847 and shift registers

Here’s Embedded Lab’s new PIC project:  Making a 8×40 LED matrix marquee using shift registers: This project is about constructing a mono-color LED matrix display board that consists 320 LEDs arranged in 8 rows and 40 columns. The heart of this project is PIC16F1847 microcontroller which receives data from a PC through a serial port […]

Tutorial: driving shift registers with AVR hardware SPI

Mike Szczys has written a tutorial on driving shift registers with SPI (AVR). He writes: The thing is, the sample code in the datasheet won’t work by itself. Atmel didn’t address the fact that you must drive SS low (the latch pin) to start the SPI transfer. I wrote this post to help get folks […]