big LED matrix project update

Gallery

This gallery contains 4 photos.

Here some photos from the LED matrix. All LEDs wired up now to the drive circuit. 8 controllers run at once! Next thing is to replace the defective LEDs- quite a few. Then I want to try double buffering. But this does not require many new wires. It is however some effort to write the software for this. There will … Continue reading

new PIC projects

1. Serial LED display This display is now in a working condition. However master code only exist in assembler, not as C source. There are some external components required (a few resistors), and the displays can not be cascaded. 2. Radiation counter I am actually using one of these displays for this radiation counter. Originally Atmel/Arduino based, modified using a … Continue reading

new LED matrix, 68k single board computer

I started off with a new prototype, 68008 single board computer, which has PIC bootloader (18f4450), and 128k static RAM. 68008 is a 68k CPU variant which only has 8-bit data bus. It is nearly complete except a few address bus wires. WIKI: http://hitechworld.org/index.php?title=68008_PiKey But I wanted to relax a little there is no need for a race… So I … Continue reading