USB ISP 3.3V / 5V AVR ProgrammerLow-cost USB in-circuit programmer for Atmel AVR controllers. DownloadFirmware and circuitThe following packages include circuit and firmware. usbasp.2011-05-28.tar.gz (519 kB) TPI support (upcoming release of avrdude will use it), supports programmers with ATMega88 and ATMega8. Please refer to Readme.txt for details on building, installing and using this product.USB DriversOn Linux and MacOS X no kernel driver is needed. Windows requires a driver for this product: usbasp-windriver.2011-05-28.zip (70 kB)SoftwareAVRDUDE 5.2.BASCOM-AVR 1.11.9.6.Khazama AVR Programmer is a Windows XP/Vista GUI application that supports this product and avrdude.eXtreme Burner - AVR is a Windows GUI Software that supports this programmer.If you need a 10 pin to 6 pin adapter you can purchase one here.To change the operation to 3.3V, simply change the convenient jumper. Then the on-board voltage regulator will provide 3.3V as Vcc instead of 5V.