Step 1 - Fit the Front Caster and Line Follower Assembly
You will need the M3 screws, 27mm pillars, ball caster and 9-way extended header and the
line follower PCBA
Fit the 2 pillars to the front of the Pi2Go using 2 of the M3 screws
Carefully push in the 9-way header, then attach the line follower PCBA
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Use the remaining 2 screws to attach the ball caster. If there is a bit of slack in its position,
ensure that it doesn't touch the pins of the connector
