Electronics > Projects, Designs, and Technical Stuff
Cheapest way to do 2 cells (alkaline) and a 5V USB jack both to 3.3V output
bson:
--- Quote from: alank2 on April 13, 2019, 06:18:19 pm ---Thank you guys for all the directions to look at; it will have a microSD card too so there might be some inrush from that being inserted too.
--- End quote ---
Make sure to give the SD card a filter cap on Vcc. I like to use 22µF, just something a little bigger than merely decoupling.
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