[Discontinued] RasPiO GPIO Zero Ruler

The RasPiO^® GPIO Zero Ruler…

• is the ideal quick reference for GPIO Zero hacking on the Raspberry Pi in Python
• acts as a Raspberry Pi port identification aid
• can be used as a ruler (cm/inches)
• fits easily in toolbox, desk tidy or workbench
• is very attractive
• won’t be easily lost unless ‘borrowed’