add as Datasheets the files I've been using for Arduino reference info

diff --git a/Datasheets/arduino/Arduino-PCB-dimensions.pdf b/Datasheets/arduino/Arduino-PCB-dimensions.pdf
new file mode 100644 (file)
index 0000000..ba294d7
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diff --git a/Datasheets/arduino/arduino-duemilanove-schematic.pdf b/Datasheets/arduino/arduino-duemilanove-schematic.pdf
new file mode 100644 (file)
index 0000000..2863fa4
Binary files /dev/null and b/Datasheets/arduino/arduino-duemilanove-schematic.pdf differ