Be aware Pi¡¯s are fairly particular about their power supply. They need just the right amount of voltage AND amperage. And in my experience the bulk of the low cost buck converters have enough variance in their output (despite what their specs show) to possibly cause Pi ¡°Low Voltage¡± warnings and/or Pi shutdown.?
For this reason I prefer buck converters with variable output adjustments for both voltage and amperage. Then you can adjust the thing to account for a miss on the specs, or more/less cabling resistance than expected. Here is one such example (but there are many others too):
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Steve Johnson
K0OIL
