Review on π DAOKI 5 PCS AC DC Power Supply Buck Converter: Step Down Module 12v 5v 3.3v 9v - Efficient Voltage Conversion Solution by Wayne Drakh
How to get 3.3V power supplies
Don't forget to hook up a multimeter or oscilloscope to check what voltage you'll be plugging in. Looking at the opposite side of the board from the main components, next to board u3, 3.3V is too correct. On my board the hole was filled with solder and that's it. This is the best end of the toothpick. I give it 4 stars because so far it works exactly as advertised and is suitable for my use. There is simply no documentation for a beginner DIY.
- Great price
- Not bad, but...
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