This is a small adapter board to allow Atmel’s ATtiny24/44/84 µController chip to be used on the Atmel STK500 development platform.
Description
I recently wanted to use one of Atmel’s smaller chips on a project and selected the ATtiny84 – it’s one of a family of chips with varying Continue reading
This is a little R-2R Digital to Analog converter breadboard adapter.
Disclaimer and License
Project Sources
Description
Having recently started playing with µControllers, I wanted to experiment with converting a digital signal into an analog voltage. The easiest way to accomplish this is by using an R-2R resistor ladder.
My ’99 Miata didn’t include an integral garage door opener but there were aftermarket modification kits available that inspired me to add one, with a few modifications, of course! Here is the write up that I created back then:
Tom Madracki, of Yorba Linda Miata, has an interesting garage door opener modification on his website. His opener modification activates the garage door opener whenever the high-beam headlights are turned on.
Sawdust
It was a simple addiction at first. A few pieces of furniture here and there soon progressed to remodeling two houses and building one from scratch. Tool purchases can always be justified: you just have to find a project for them!
Another long ago furniture project. When my boss’ son was born back in 1992, I made this rocking horse for him out of a pallet that a large CNC machine was delivered on. The main runners of this pallet were some 8×12″ red oak timbers. After re-sawing and planing, this beautiful wood emerged from the oil soaked pallet.
As I look back I realize that before we went to China and took up photography as a sort of hobby, we had not taken pictures of many of the projects that I built. And even where we had a picture of the finished project we didn’t take the in-process photo records that you see for many of my metalworking projects. In future I’ll try to be sure to do that, but for now I’ll just show a couple of pictures that I have handy right now.
This is a write-up that I did for a local Miata club website back around ’99 or 2000. It includs the schematics but only a few photos, I didn’t take nearly as many back then as I’ve done for more recent projects. And, although the voice here is written as a set of instructions it has been a long time since I wrote this so use anything entirely at your own risk! Here’s the original write-up:
This is another write-up from back when I was making various modifications to my ’99 Miata. For this project I modified an installation of a Duetto Motors keyless entry unit, which I added because they didn’t come with the car back then. Here’s the article as written:
’99 Miata Trunk Light Modification
Back in 1999 I wrote up some instructions to help other Miata enthusiasts make a minor change to their cars, for less than $8 and about two hours of time, which I thought made a worthwhile improvement to the car design. I’ve included a copy of my instructions below if anyone is interested in how I made this modification.
Compared to our CT house, our house in MA has even more ragged old White Pines that need clearing. I haven’t yet had a chance to get really started, but I did take one dead tree down recently when I needed to build a section of rail fence to act as a gate in the stone wall. After cutting and setting posts to match the mailbox post that I made, I needed a 14 ft section of rail to fill the gate opening. This is far longer than the split rails available at the store but there was a simple solution.