Firewing board for PIC18F
Firewing board for PIC24 and PIC32
Now David Barker, the author, did also a series of Shields for these boards which can be seen and bought from his website. Anyway, as he said,
So, he invented stickyBUG which I see it as a good response to the Click bus of Mikroelektronika, and UEXT bus of Olimex. stickyBUG is a little board which sticks on a stickySHIELD. This stickySHIELD can accomodate up to four little bugs and there is already a kitchen full of bugs:We all love Arduino shields. They enable you to create many great projects by adding pluggable functionality to your main Arduino board, but they sometimes can have very fixed or limited functionality. For example, try finding a shield that has WiFi and a 12 channel servo control on the same board!
ioBUG, wifiBUG, segmentBUG, gpsBUG, ledBUG, motorBUG, servoBUG, btBUG, bargraphBUG, thermoBUG, eepromBUG, expanderBUG, lightBUG, rtcBUG, sdBUG, temperatureBUG.
And probably there will be more. In my humble opinion, this is the best idea for the Arduino industry, as Arduino team stopped innovate. It is an idea that gives great functionality to the Shield system.