Simple tweak for breadboard power modules

Example of a breadboard power module

Nowadays breadboards are often sold with a breadboard power module and a bunch of jumper wires included. This power module allows you to easily apply 5 and/or 3.3 volt to the power rails of the breadboard using an external power source. However, often you need a higher voltage in your project as well, maybe 9 or 12V to power your Arduino, relay, audio amp, etc. This little tweak shows you a simple yet effective solution.

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