BreadBoard Power Supply

Plugs into the power rails at the end of a breadboard and delivers clean 3.3V and 5V from a DC jack or USB input, with each rail independently switchable by jumper. This removes the most common cause of unstable prototypes: powering everything from an Arduino's onboard regulator, which was never designed to supply a breadboard full of modules. Having both voltages available at once also lets you mix 5V and 3.3V parts on the same board. Independent 3.3V and 5V rails, jumper selectable; Frees the Arduino regulator from powering your whole circuit; Plugs directly into standard breadboard power rails; On/off switch and status LED fitted