Μ

µ == Micro

ATtiny85

Boot Loader

https://github.com/micronucleus/micronucleus

Datasheet

http://www.atmel.com/Images/Atmel-2586-AVR-8-bit-Microcontroller-ATtiny25-ATtiny45-ATtiny85_Datasheet.pdf

Purchase

• https://www.digikey.com/product-detail/en/microchip-technology/ATTINY85-20PU/ATTINY85-20PU-ND
• http://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/ATtiny85-20PU
• https://www.sparkfun.com/products/9378