Based on mharizanov's fork of deanmao's original work.
Since the Raspberry Pi lacks a DTR pin that makes it oh-so-easy to upload your hex files into the avr, we need this hack to make it just as easy. When you wire up your atmega chip, be sure to connect one of the digital gpio pins to the reset pin, and then you'll be able to use avrdude as if your serial cable actually had a dtr pin.
Install using script:
$ git clone https://github.com/LowPowerLab/avrdude-rpi ~/avrdude-rpi && ~/avrdude-rpi/install
Manual Install:
Copy both files into your /usr/bin directory, then rename the original avrdude to avrdude-original and symlink avrdude-autoreset to become avrdude.
cp autoreset /usr/bin
cp avrdude-autoreset /usr/bin
mv /usr/bin/avrdude /usr/bin/avrdude-original
ln -s /usr/bin/avrdude-autoreset /usr/bin/avrdude
Modify the autoreset script to use the pin that you wired up to the reset pin. See the line in autoreset where we do "pin = 22" and change the 22 to your gpio pin number.
Now when you run avrdude from anywhere (including via arduino's normal UI) it will flag dtr when it is about to upload hex data.
http://www.deanmao.com/2012/08/12/fixing-the-dtr-pin/
Make sure Python is installed:
$sudo apt-get update
$sudo apt-get install python-dev
$sudo apt-get install python-rpi.gpio
##Programming
Make sure your serial port is free. See image below for example programming. First the application that uses the serial port is stopped, then avrdude is called, then app is started again.
