The RasPiO® GPIO Ruler…
- is the ideal quick reference for RPi.GPIO hacking on the Raspberry Pi in Python
- has all the most commonly used RPi.GPIO code, which can be hard to remember
- is a Raspberry Pi port identification aid (GPIO numbers and Alt functions)
- can be used as a ruler (15 cm/6 inches)
- fits easily in a pencil case, toolbox or desk tidy