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Arduino Power Supply Shield With 3.3v, 5v and 12v Output Options (Part-1)

Hello guys! I am back with another Instructable.
When developing electronic projects, the power supply is one of the most important parts of the whole project and there is always a need for multiple output voltage power supply. This is because different sensors need different input voltage and current to run efficiently. So today we will be designing a Multipurpose Power Supply. The Power Supply will be an Arduino UNO Power Supply Shield which will output multiple voltage ranges such as 3.3V, 5V, and 12V. The Shield will be a typical Arduino UNO shield with all pins of Arduino UNO can be used along with extra pins for 3.3V, 5V, 12V and GND.”

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