Power

The simplest way to power the shield is to attach a Photon, and then power

the Photon through the micro USB connector. This will power the Photon as

well as all the components on the shield.

The downside to that power scheme is that micro USB connectors tend to

be fragile when put under a lot of mechanical stress, and they can rip right

off the PCB if pulled too hard. Thus, we provided a few other options for

power connectors.

On the underside of the shield, you’ll find a footprint for both an SMD Barrel

Jack and a 2-pin, 3.5mm screw terminal. Either of these can be soldered to

the PCB and used for alternate power inputs. The maximum voltage

supplied on these alternate connectors should not exceed 12V. For a

detailed explanation, read on.

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