This is fun – gEDA is open source CAD. A toporouter is a mathematically-correct topological router. It’s looks funny, but it’s optimal!

Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.

Join 7,500+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — Fewer startups, and other collateral damage from the 2018 tariffs

Wearables — Light as a Worbla feather

Electronics — How to make your own magnetic field probe!

Biohacking — The State of DNA Analysis in Three Mindmaps

Python for Microcontrollers — One year of CircuitPython weeklies!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


  1. Kind of looks like the type of point to point wiring that people do instinctively.

  2. Surprise!

    Initially I just want to re-layout Lady Ada’s MiniPOV3 with gEDA and produce 10 numbers of prototypes to give away on 2010 Software Freedom Day Shenzhen.

    *Button and beeper*
    I found that there are several unused pins on the tiny2313, so I add 3 buttons and a beeper, this makes it can be used as a binary or POV cooking timer.

    I also want to add a DS18B20 temp. sensor, but one rule of design is "Simple is better".

    The 3 buttons can be also used to input English words just like the AVR butterfly(But the software was not been implemented).

    The circuit is simple so it is a good opportunity to test pcb’s Toporouter. Finally it works and the layout is very nice. Toporouter is magical! If you change the width of the trace, the layout will be also changed(optimization).

    *POV font*
    As it is a POV toy, so use "POV font" will be fun. This was inspired by Windell’s script font on his business card breakout boards. The font was extracted from HD44780 datasheet and make some modification in inkscape, then convert the postscript file to pcb file with pstoedit.

    Lady Ada, many people include me were inspired by you and your projects. I want to say thank you.

  3. I was gonna say the same thing, it’s reassuringly like the 70’s/early 80’s electronics I’ve hacked.

    ‘Cept Tiny 😉

Sorry, the comment form is closed at this time.