We are testing out more open sources codes using the long neopixel strip. This means we need an external power source because running too many LEDs through a USB port can cause it to blow up.
The green display below must show below 5 volts (shows 4.9).

LED and Arduino run on 5 volts

Multimeter:

Get the clip wires and make circuit -red to red, black to black.


– Set to 20v as 5 is lower than 20.
– 5.1 is fine

When ready clip to circuit.

This is an important layout to remember when wiring up the external powers source:

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