USBtinyISP USB ISP AVR Programmer for Arduino Bootloader Meag2560 Uno R3 USBtinyISP is designed for AVR ,based on USB connector's ISP download wire. Officially supported by IDE, we can burn Arduino bootloader onto chips, and practically program any Atmel AVR microcontroller by this powerful AVR ISP programmer. Both 6-pin and 10-pin AVR-standard interfaces. 2 LEDs to indicate "USB/Power good" and "Busy". USB powered.