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5V breadboard mini PSU

Step 2Minimize

Minimize
Place all the components on a perfboard to see how tiny you can make it.
I won't give any detailed instructions here, as the size and layout of the parts you use may vary from mine.

Put the components in as tight as you can, while verifying that you can in fact complete the circuit on the underside of the board without adding any wires.

When you've found your minimum size, cut out the piece you need.
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Author:chr
I like microcontrollers and LEDs :D