Completed mid 2015 this was a product we designed to convert 0-100VAC sine waves to 5v pulse trains at 1/2 the original frequency. The application was to adapt the output signal of a Mazda RX7 speed sensor and output a compatible signal to a GM cruise control system. It worked, but wasn't cost effective enough to bring to market. It may eventually go open source.

Prototyped in 2015 this AVR based AC controller was designed to intelligently control an automotive AC compressor using feedback from the car's PCM and sensors as well as input commands from the user. I completed the hardware design and PCB layout, but the boards were never assembled and the microprocessor code was never written.