I’m pretty sure the majority of my projects will never be considered “Complete” as I’m always tinkering with the firmware to add or refine features. However, I like to give my projects a finished look which means they will be inside of enclosures or integrated into other devices. It would be nice if I could update the firmware without having to dissect the project to get at the controller. To accomplish this, I created a XBee plug for my Hobbyduino Mini V3 Arduino clone. Check out the gallery here and the tutorial here.
I updated the CNZ1120 Photo Interrupter board to version 2.0. Check out the gallery here.
Here are pictures of the Hobbyduino Mini boot-loader ISP Plug. This plug (or shield if you like) can be used to burn the Arduino boot-loader onto blank ATMega328 or ATMega168 chips. In essence, this plug is a minimalist AVR ISP programmer. Go here for the gallery.
The Hobbybotics I2C I/O Expander is based on the Philips PCF8574A. The PCF8574A provides eight bits of I/O with the use of only two micro-controller pins. Included are pictures of the first version of the PCB. Go here and check out the pictures.
View it here.