Continuing on with the video theme in these “maybe someday” projects, here's one about vectors: I've read that converting raster CRT displays to vector input is impractical because of the horizontal drive circuitry (flyback) being part...
Here is a picture of Tiny302 posted earlier with the addition of a seven-segment/LED/switch display. The display is compatible with the simulated hardware display in Sim68K so the software that runs in simulation will run on this hardware. It is a memory-map...
Video testing would never be complete until a CRT was put into the mix. This whole exercise started with the assumption that LCDs would handle arbitrary video timing. How hard is it to do a simple linear interpolation and resample at the native resolution...
I've been pondering a second version of the staff for a while now and what with burning man 2014 right around the corner I think it's time to get serious.I'll document the whole process start to finish here. Hopefully with any luck and a bunch of help...
The Rotovis-Mod1 is designed to help users quickly create high-density (40 DPI, roughly equal to a TI-83) persistence-of-vision displays. Each board is the size of an 8-pin narrow DIP package, and can be used with or without header pins due to its castellated...
Found this old vfd display in a box a recovered old components, a Noritake FG520A1. The back view shows most of the wiring to the segments. Probing around it was easy to find which was the cathode, while putting 3v to this and grounding the opposite...
I wanted to explore using addressable LEDs to visualize orientation data, however the NeoPixel rings one can buy from Adafruit or from Ebay sellers tend to max out at 60 LEDs. I'd have to sacrifice resolution if the LEDs could not somehow be made to...
Background We are a group of students at the University of Oslo, that have designed and built a massive ferrofluid-display with 252 electromagnetic "pixels". The display has a 12x21 resolution (the closest we could get to 16:9 on our budget), and is...
Congratulations to the winners of An Unconventional Clock contest in /r/diyelectronics on reddit!Winner of Community vote:Steam Punk owl clocks by Kurt SchaeferWith 20 votes total, this comprehensive build combines electronics, woodworking and using...
Okiday, Futaba 20-SD-06GK VFD on the workbench with the filament heated. Fiftynine pins and no datasheet. The two outermost pins on each side were for the filament. The tube has 20 grid segments (one for each character) and 35 anode segments (5x7 phosphor...
From MakersBox on Instructables: Programmable POV Fidget Spinner Fidget spinners are fun, and you can find one at about any check-out counter for just a few bucks these days, but what if you could build your own? And it had LEDs? And you could program...
The driver should have SPI or I²C interface and allow dimming. SPI MAX7219 : LCSC.com : €2.07 (Digikey >€7)has an internal 8x8bit RAM buffer74HC595 + 74HC138: 8 outputs, cheap, standard part, PWM-dimming using /OE-pin, Digikey...
Persistence-of-vision displays are fascinating. They can create text and images out of thin air, and the hardware can be quite small compared to the size of the display if user-generated motion is used to create the 'scan' dimension. I think POV displays...
Light Bar Above Main ScreenFor this bar graph I'm currently using 12 - 2x5mm rectangular LED's (I used Red/Green LED's that have 3 leads - common cathode, 2 anodes 1 for each color). I was thinking to make a more graded display (2 levels for each LED...