Hardware release v2.0.Firmware release v0.1.0.Working release.Major Changes:- Removed indicator LED- Added reset jumper- Switched to different ESP WiFi module- Added test pointsPCB manufactured and assembled by PCBWay. Total cost is $535 for...
Everybody loves nixies, they have a retro-futuristic look to them despite being used more than 60 years ago, and the soft warm glow and 3d view they have as they shift from digit to digit is uniquely theirs. Nixies are absolutely a dated technology though,...
A major milestone reached today. The Kobold K2, without debugger attached, runs a program from its two Flash ROM's, and blinks the LED on the main pcb ! It runs on the RC-clock that is on the main PCB (U9A, HC132, 4K7 and 470pF). No RAM has been...
Background A gradually brighter light can mimic the sun rise. It will allow for gentle wake-up in the morning. Experience with the Philips HF3463 showed me that you shouldn't count on it to get up on time. I sometimes find myself...
Not satisfied with the brightness of the bicolour LED I have lowered the values of the resistors but unfortunately the load was too high for the pin 13 (clock of the HC596) because this pin have already an LED internally. I have used a neopixel on the...
Hello again, makers!This week, I've got an update on Lixie manufacturing, a new accessory in the works, and a bunch of cool code examples! Manufacturing UpdateI've ordered the final revision of the Lixie PCB for testing from DirtyPCBs, and as soon as...
Erica’s original system was based around the TLC5940 LED driver chip which was controlled directly by one of the raspberry pis in Erica with an ATtiny45 on the pi daughter board to provide the clock signals. Erica old LED setupFor anyone who saw Erica...
CPLD configuration design (Quartus II) Open yours previously saved project (see previous "Log") from Quartus II with "File" -> "Open Project..." and select the file "test1.qfp". The .qfp extension is used for the Quartus II projects: This is the environment:...
I've acquired and am rebraining/repurposing a Red/Green LED matrix sign, made in the early-mid 1990's with a densely-peripheralled Z80 processor board (which, later, might be fun to also repurpose? Sorry @ziggurat29, I haven't gotten you those ROMs,...
This 40 LED version recycled the PCB of a 600lm IKEA light bulb. Adding some additional wires, attach an ATTiny44 find a matching charlieplexing pattern and there it is. No need for KiCAD this time ;-).BTW. There are 36 LEDs around. This are 3 LEDs per...
The seller from whom I bought the displays (spacemissionmarket / eBay seller: rocket-broker eBay Store) kindly sent me some photos of a partially disassembled “Type A” clock, showing the wiring and PCBs with 8 digits...
Here's the routed PCB.Features:PSoC 5LPUSB-B connectorLED controlled by the PSoCZ80 CPU512KB SRAMReal time clock+battery.The oscillator is optionalI2C connectorDownload cable headerODAS form factor (95x95mm)Mounting holes
For the second iteration of the Digital Dice Tower, I decided to add some sound. At first, I was simply going to add some beeps and boops to make the die rolling a little more interesting. But, then I decided to take it to the next level with sampled...
Finally I got the first build using the new custom PCB put together and running. I was able to use a handheld router to cut the grooves for the LED rings, and the pocket for the PCB. I did a light stain on it, with a clear coat to protect...
Over the past few years, I have continued to amass a collection of the 1975 Bell & Howell IMD-202 digital multimeters with nixie tube displays. With some patience, I've been able to buy them on Ebay for less than $50 each. Given the case, power...