I finally received the PCBs and plastic to put together my final design. If you have been following; this is my second version of the programmer and it is a much better design than my first attempt. Assembly takes about…
Building on the car project I have taken the pager motor and its paper supports and turned it into a linear actuator. So what is a linear actuator? Motors provide rotary motion that may not be useful in certain application.…
I finally bought a Beagle Bone Black and the first thing that struck me was that I needed a home for the board. I decided to make a laser cut plastic package so I designed the parts in Inkscape. Early…
As I experiment with the idea of flexible paper circuits I decided to try out a flex circuit material from http://www.conductiveinkjet.com/.The flexible circuit is available in 28cm wide sheets and the length determines the cost. The material costs ~$75/meter. To…
With April arriving birthdays abound so I decided to personalize my cards using copper foil circuits. The concept was simple; have a card with coloured balloons and a gift. Each balloon would be backlit with colour LEDs while the gift…
This is my first look into the possibility of creating a simple computer circuit built of paper and copper foil. The design actually supports a complete Arduino sketch environment and costs less than $2 to build. So lets get started.…
Design is an art form and it takes many years to become good at it. I have summarized some of my thoughts on what works for me. These are tips that may even help you so don’t be afraid of…
The minimum hardware to build the development board is shown here. The reset circuit is very important to the design because it allows you to either reset the processor or start the boot loader using a single button. A brief…
In preparation for the new LPC1347 board I have compiled the USB code into a library file that can be included into a project to provide access to printf. The library includes access to the USB CDC, UART and standard…
The last discussion about pogo pins was my first excursion into there use. The result was a purpose built programmer board to burn the capacitive touch switch firmware. I am less than thrilled with the complexity of assembling a test…