PICAXE 08M2 Microcontroller (8 pin)
Cost: $2.95 each
Description: PICAXE-08M2 microcontroller chip.
PICAXE is a neat entry-level microcontroller system that is relatively cheap to get started with. The chip is programmed with a simple serial connection and the BASIC development environment is free! PICAXE has some excellent educational applications and support, and is a great entryway into more complicated embedded systems. If you're look for a place to start with microcontrollers, PICAXE is a great way to go!