The Arduino ISP is a tool to directly program your microcontroller.
WOULD YOU LIKE TO BUY AN Arduino ISP?
The Arduino ISP allows you to upload sketches and burn the bootloader on any AVR based Arduino boards. By uploading a sketch with an external programmer you can remove the bootloader and use the extra space for your sketch. The Arduino ISP can also be used to burn the Arduino bootloader, so you can recover your chip if you accidentally corrupt the bootloader. Burning the bootloader is also necessary when you use a new ATmega microcontroller in your Arduino, and you wish to use the bootloader to upload a sketch via the USB-Serial connection.
Connect the Arduino ISP to your Arduino board's ICSP headers. Make sure to match the orientation of the plugs by looking at the white dot on the corner of the connector. You have to power the target board from the usb cable or the DC plug, to ensure the safe power we recommend to use an external power supply.
The Arduino ISP is also able to provide the 5V power supply voltage to the board being programmed. If you want to power the target board through the Arduino ISP you have to close the SJVCC jumper on the board.
Connect the Arduino ISP micro USB connector to your PC and open the Arduino IDE and select "Arduino ISP" under the "Tools > Programmers" menu. To upload a sketch using the Arduino ISP, choose "Upload using programmer"option in the File menu, or use the keyboard shortcut: "CTRL SHIFT U". If you want to burn the bootloader into the AVR microcontroller select the "Burn bootloader" option under the "Tools" menu.
Note: The Arduino ISP is only supported by Arduino IDE 1.5.7 or later.
Windows Drivers: ArduinoISP_org_WindowsDriver.zip
Connection with the computer
Connection with the target board
The firmware on the ATtiny44 inside the Arduino ISP can be updated or replaced. To program the ATtiny you have to close the SJFAB jumper and connect an ISP programmer in the ICSP connector.
Unknown USB device: if your computer does not recognize the device try a different USB port. Some particular USB ports cause problems during the communication, changing the USB port usually fixes the problem.