MagSpoofPI.c license: https://github.com/samyk/BPL/blob/master/README.md

MagSpoofPI - code integration by Salvador Mendoza(salvador_m_g@msn.com) @Netxing
Thanks to Samy Kamkar(@samykamkar) and Sabas(@Sabasacustico)
Details and configuration example: https://netxing.wordpress.com/2016/08/27/magspoofpi/

Main idea: be able to compile MagSpoof with variable tracks, and use it
without arduino dependencies, and use it on the same raspberry pi gpio.
-
Special code for Raspberry Pi implementing avr-gcc without arduino.
-
Main modifications from the original MagSpoof in functions like digitalWrite(),
setup() and loop().

Original MagSpoof: http://samy.pl/magspoof/

Original instructions to program Attiny85 for Raspberry Pi:
http://www.instructables.com/id/Programming-the-ATtiny85-from-Raspberry-Pi/

Dependencies: Download and build avrdude

sudo apt-get install bison automake autoconf flex git gcc
sudo apt-get install gcc-avr binutils-avr avr-libc
git clone https://github.com/kcuzner/avrdude
cd avrdude/avrdude
./bootstrap && ./configure && sudo make install

Setup SPI on the GPIO

sudo raspi-config
and Enable SPI device in the Advanced Options (see picture)
You can check this at the command line with lsmod, no need to reboot. (Maybe need to sudo modprobe spidev)

Download and build WiringPi for the gpio commands

cd ~
git clone git://git.drogon.net/wiringPi
cd wiringPi
./build

cd ~
git clone https://github.com/salmg/MagSpoofPI.git
cd MagSpoofPI
make install

To test it:
sudo python rba.py