The folks at Mouse-Sensitivity.com used the AxiDraw to do a mouse sensor accuracy test, comparing the Logitech G900, G700s, and G9X (and a cheap HP they had on hand). The resulting visualization of the sensor information is fascinating!
Dave K. sent us these pictures of the menorah he built with the Deluxe LED Menorah kit. It’s a one-of-a-kind project, made from scrap wood from his shop.
The base has a cutout to hold the PCB and battery holder, and the LEDs are wired up through the blocks of wood. Thanks for sharing your project, Dave!
AYAB — All Yarns Are Beautiful — is an open source hardware and software project that provides an alternative way to control the widely-loved Brother KH-9xx range of knitting machines using a computer. There are other hacks (such as Img2Track, Knitic and electro-knit) which work with certain machines in certain conditions. The AYAB interface works with all Brother KH-9xx machines except the KH-970.
Historically, these machines were programmed with semi-transparent picture cards which were scanned by the machine line by line. For later machines, you could enter a pattern via lots of tedious button-pressing. Some models had an add-on gadget that connected to your vintage TV.
With the AYAB interface, you can provide an image of up to a 200 pixel (or needle) size from your computer. The control is done by an Arduino-compatible microcontroller board, which replaces the vintage control board. We are excited to be helping to bring new capabilities to these beloved machines.
The makers of OSHChip are now producing the IC pins on their own for you to use in projects where square header pins just aren’t a good solution. The larger header pins can damage breadboard sockets, but Flip-Pins are the same size as traditional IC pins.
They come packaged in a carrier strip for ease of soldering into your PCB.
While I’m a big fan of paper and circuits, I’ve never really given paper circuits/circuitry a shot. Unfortunately, I have no good excuse for this. (Fair warning: I’ve been collecting links and ideas on this topic for several weeks now, and even though I intend to break up the post into more manageable chunks, I have a feeling this is going to be a doozy) …
Our collaborator Eric Schlaepfer has been extremely hard at work this year, designing a truly monstrous follow up to our giant-scale dis-integrated 555 and 741 circuits. This is the MOnSter 6502: a transistor-scale replica of the famous MOS 6502 microprocessor, the processor found at the heart of influential early computer systems such as the Apple ][ and the Commodore PET.
It is huge, at 12 × 15 inches, with over 4000 surface mount components, and 167 indicator LEDs added throughout so that you can see the flow of data.
This is a new project, still underway. We will be showing off the first prototype of the MOnSter 6502 at the Bay Area Maker Faire this coming weekend. We don’t promise that it will be completely working by then — this is a first stab at an extremely ambitious project — but we’re genuinely excited to show it off in this early stage.
(Before you ask, the MOnSter 6502 is not yet a kit or product that we’re selling. Right now, it’s an amazing thing that we’re trying to build. If you would like to stay in the loop as this project evolves, we’ve set up a special mailing list for updates.)
I used your Larson Scanner with 10 mm LEDs to put a little life into my Cylon “standee” which stands guard over my office. It has delighted everyone in the office (especially the IT Guys that work for me).
Each circuit depicts an original, traced and hand-drawn schematic created by Forrest Mims for his iconic books “Getting Started in Electronics”, and the “Engineers’ Notebook” series. Every board includes a description of how it works, in Mims’ handwriting, on the reverse side.
They look like a fantastic way to learn electronics. You can order them through her Crowd Supply campaign now.
S.W. wrote in:
I just wanted to let you know that I am using your XL741 kit in my Electronics 2 class lab. It is a high quality kit and I thank you for putting it together. We build the 741 in stages, make measurements, adjust offsets, etc. It is a great vehicle to teach the analog building blocks. A student of mine (now graduated) and I wrote four lab exercises for it and they are being used now for the second time. We also just got to share them with several EE teachers who were also very enthusiastic about the idea.
We love to hear about how our kits get used!