Wiring for the Metro Classic

Pay attention to the resistor value!

You'll want to be using a 1M Ohm Resistor for this Circuit. The pin extending from the sensor pin (in our case, it's Digital Pin 2), should ideally be a short pin from the Breadboarding Bundle.

1M Ohm Resistor Color Band: Brown > Black > Green > Silver

Wiring for the Metro Express

You don't need a 1M Ohm resistor for this circuit, just a smaller value (like the 560 ohm included in the MetroX Classic and MetroX Express kits). The Metro Express has 1M Ohm pull-up resistor values on-board.  

This guide was first published on Aug 18, 2017. It was last updated on Aug 18, 2017.
This page (Wiring) was last updated on Apr 26, 2020.