Projects

Here are some of the projects I have built or am working on. You may find something of interest or something that helps you out.

• A control board for small robots using the NXP LPC1114 ARM Cortex M0 processor in a 28 pin DIP package.
• A prototyping board for the Commodore VIC-20 or any other system with 22/44 pin x .156 card edge sockets.
• aRdTOS A small and simple Real Time Operating System for the Arduino. Simplify timing issues in your sketches.
• Sweet 2016 Virtual Machine, Woz style, circa 1976. Relooked and reimplemented, with thoughts on what might have been.
• AVR COG The AVR Character Overlay Generator. This was my entry into the 2004 Circuit Cellar and Atmel AVR design contest. It accepts a video signal input and overlays up to 6 lines of 20 characters each on top of the text. The design is meant to be cheap and minimal. It has some flaws, the biggest is it is very sensitive to the video signal level.
• emBASIC (Work in Progress) An efficient, simple and portable BASIC compiler for embedded systems. Planned targets for AVR and ARM, with a Linux and Windows (compiled/interpreted) version for development.
• NXP LPC ARM microcontroller tools I am building some development tools for NXP's ARM microcontrollers. There is still much to be done but they are working
• Work holder An easy to build, cheap, and sturdy PCB holder
• BDK-8e -- A Digital Equipment Corporation PDP-8e clone work in progress.
• Follow the Leader. He's on a Honda
• PF-BDK: Epson PX-8 disk drive (PF-10 / TF-20) emulator.
• Little Bin -- A true binary clock that is also very accurate.
• Experiments in Intelligence My attempts to build an intelligent machine from the ground up. -- May 2019
• LCBDK A very accurate and handy inductance and capacitance meter.
• SoftRock-33 -- coming soon
• KeyAlyzer morse code training device.

Publications

• Here is an article I had published in Servo magazine. The article is about a way to control stepper motors in a versatile and efficient way.
  If you have any interest in any type of robots, you should be reading Servo.
  
  Direct link.

Books

I have decided to embark on combining a lot of my writing into some books. There is long way to go, but I will post drafts here. Feedback is welcome, and will encourage me to continue. If you like what you see and want to see more, please let me know.

• Introduction to Electronics Here is an early draft of the first chapter. Take a look so you can see what the book is all about. Feedback is strongly encouraged. I want to know how it can be improved."
• Introduction to Buiding Embedded Devices This is a VERY early draft that isn't even very coherent yet. But you can get an idea what to expect. Intended to take someone with basic electronics knowledge and teach them how to build and program small embedded devices.