RAWr is a minimal RAW camera file reader. It started when a friend clicked images in his camera in RAW and I wanted to view them easily. Not knowing that Shotwell could already do it, I cooked up a small script. It uses the
rawpy module (based on LibRaw library) for image format conversion and PyQt for UI
QRite is an Android application for generating QR code vCards or custom QR codes easily. You can customize size and color of the QR code, save it to your gallery and/or send it to an Android Wear or Pebble smartwatch. It has a much improved user-interface with a clean and minimal look.
A small IRC bot I did with my labmates. It controls not just the virtual IRC world at our channel but also real world activities in our research labs. It plays and schedules music, notifies mentions on IRC by blinking 40W lamps, controls lab lights, quotes a relevant xkcd, publishes fake research papers, so on and so forth.
A remote sensor terminal and information kiosk using an ARM based development board and a custom Qt based embedded linux
An industrial grade temperature and pressure display unit. Uses PIC16F783 microcontroller and a 4-20mA to 1-5V current to voltage conversion circuit with scaling and calibration logic