## ArduinoISP2 

This code is used in the Adafruit tutorial "Arduino Tips, Tricks, and Techniques" to reprogram AVR chips.
https://learn.adafruit.com/arduino-tips-tricks-and-techniques/arduinoisp

 March 2012 William Phelps - wm (at) usa.net 
 
 This is a fork of Adafruit's ArduinoISP
 which is a fork of Arduino's ArduinoISP
 which adds an 8 MHZ 'crystal' output on pin #9 so you don't need an
 extra oscillator/crystal. Can also rescue some bricked chips with
 bad oscillator fuses
 
### Modified for Arduino IDE 1.0

- shorter serial port receive buffer requires changes  
- getEOP() now gets entire request before avrisp() is called to process it  
- Serial.print((char) xxx) changed to Serial.write(xxx)  
- uint8_t changed to byte  
- added support for Piezo speaker  
- moved Pmode LED to A0  
- removed "heartbeat" on pin 6, added short blip of ERROR LED instead  
- Why is it that PROG_FLASH and PROG_DATA don't actually do anything???  

Tested with Arduino IDE 22 and 1.0  
- IDE 22 - 5148 bytes  
- IDE 1.0 - 5524 bytes!  
 -----------------------------
 This code was previously at https://github.com/adafruit/ArduinoISP which has been archived.