PDF] C Programming for Microcontrollers Featuring ATMEL's AVR Butterfly and the free WinAVR Compiler | Semantic Scholar
AT AVR BUTTERFLY: Atmel AVR Butterfly, Demoboard with ATmega169 at reichelt elektronik
C Programming for Microcontrollers : Featuring ATMEL's AVR Butterfly and the FREE WinAVR Compiler by Joe Pardue (2006, Trade Paperback) for sale online | eBay
PDF] C Programming for Microcontrollers Featuring ATMEL's AVR Butterfly and the free WinAVR Compiler | Semantic Scholar
Smiley's Workshop 29: SPI and the AVR Butterfly DataFlash | Nuts & Volts Magazine