Arduino USBtinyISP shield

USBtinyISP is designed for AVR ,based on USB connector's ISP download wire。In Arduino IDE，USBtinyISP is suppoted download wire all the time，to download bootloader，compared to USBasp，it is more simple

Download Arduino 0018
   
Download USBtinyISP driver program，and setup in your computer：

USBtinyISP V2，set jumper wire to get power。when Arduino download bootloader，we need to make jumper wire be short circuit，so we don't need to supply external  power to Arduino：

connect the USBtinyISP and Arduino's ICSP：  

then open Arduino's IDE。in menu “Tools”->“Board”list, choose your Arduino，“Tools”->“Burn Bootloader”->“w/ USBtinyISP” to download Arduino's bootloader：

when downloading，USBtinyISP's BUSY light is all bright，indicate that it is well working：

after downloading , Arduino IDE window display “Done burning bootloader”：