What is the ideal power supply for this module? What do you use that works ok?

Will the AMS1117 work?

1 Answer 1


Yes, that will work. However, ignore the entire description.

That is NOT a buck regulator - it is a low-dropout linear regulator. Thus it will waste power as heat - the more current you draw the hotter it will get.

The '1117' range of regulators are pretty much ubiquitous. I use them in a wide range of products and situations where power consumption isn't critical (i.e., not battery based products).

For lower power requirements you want to get a real buck regulator. Something more like this: http://www.ebay.co.uk/itm/301842020065

Note that it's an adjustable module, and you will need to first use a multimeter to adjust the output to 3.3V before you connect it up.

Because they are adjustable they are a great thing to keep around since you can use them for all sorts of different situations.

  • This looks better. Will the element i ordered require additional capacitors? I'll order a couple of these too.
    – JJ_Jason
    Commented Feb 5, 2016 at 22:15
  • No, the 1117 board has the capacitors on it already.
    – Majenko
    Commented Feb 5, 2016 at 22:16
  • My bad. I should have read better.
    – Gerben
    Commented Feb 6, 2016 at 9:14

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