Programmers - Processor Based Arduino ISP Programmer

The ArduinoISP is a tiny AVR-ISP (in-system programmer) based on David Mellis' project FabISP (http://fab.cba.mit.edu/content/projects/fabisp/). With this programmer you can upload sketches and burn the bootloader on any Arduino (or other brand) AVR based boards. By uploading a sketch with an external programmer you can remove the bootloader and use the extra space for your sketch. The ArduinoISP can also be used to burn the bootloader on your Arduino, so you can recover it if you accidentally corrupt the bootloader. Burning the bootloader is also necessary when you use a new ATmega microcontroller in your Arduino, and you need the bootloader in order to upload a sketch in the usual way.

Using the Arduino ISP is very simple. Connect it to your Arduino board throught the ICSP connector being sure to match the orientation. Look at the white dot on the corner of the connector to check if you plugged it correctly. FOTO! Now all you have to do is to open the Arduino IDE and select the ArduinoISP in the Programmers menu under Tools. When you finish your sketch and you want to upload it just go to File and click on "Upload using programmer". If you want to burn the bootloader into the AVR chip just go to Tools and click on "Burn bootloader".