Such is the case with [RealCorebb]’s BBAir project, a completely transparent air bubble display. Although the plan was to spend about three months on it, the months slowly added up to a full ...

The main components of the thermometer are a MLX90614 sensor, a gorgeous HP QDSP-6040 bubble display, and a ATtiny2313 microcontroller to tie it all together. The rest are passive components ...

Any phone that supports SMS, even old cellphones, can communicate with iPhones and appear in green bubbles. iPhones use Apple's iMessage system and display a blue bubble around the text.