CAN2USB

I needed a device that allows me to communicate with CAN bus.
Until now, I used logic analyzer or Beagle Bone Black so simple interface facilitate my work. First I designed myself, even created a prototype, but ran out of time on programming. Browsing the Internet I find this: http://www.fischl.de/usbtin/ decided to use this project instead of building my almost identical device from the beginning.

Recipe for SphereBota

I wanted to have SphereBota - something like plotter allowing for painting the spherical objects (eggs, balls, baubles).
It was something like this:

Easy PWM driver

A friend wanted to highlight the model, purchased specifically for this purpose LED strip and power supply.
It turned out that all the lights bright too much, and he need a system limiting the intensity of illumination. The natural course of things was to create a simple PWM controller.

Accelerometer MMA7455

I want to use accelerometer in one of my projects. I choose MMA7455, accelerometer has leads under the case so you need some gym to fix it. I solder it with hot air and under the microscope.

Ethernet Controller, Part 2

Order PCB arrived. Time for assembly, unfortunately it did not go according to plan:

Ethernet driver

One day I got to do driver inputs / outputs managed by the ethernet.
Design assumptions are as follows:

• 20 inputs
• 20 relay outputs
• controling by www page and comand line
• UART and ISP/I2C interfaces
• all based on PIC18F97J60 with hardware Ethernet control