ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (of course a bit less powerful). With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this ATTINY85 USB Development Board is a great way to jump into micro-controller electronics.
ATtiny85 based micro-controller development board come with the USB interface. Coding is similar to Arduino, and it uses the familiar Arduino IDE for development. This is a disparaging clone.