Reddit reviews Ailavi DC-DC Buck Converter 6V-24V 12V/24V To 5V 3A USB Output Module
We found 6 Reddit comments about Ailavi DC-DC Buck Converter 6V-24V 12V/24V To 5V 3A USB Output Module. Here are the top ones, ranked by their Reddit score.
High quality USB portNew main chip made in USAThe max output current 3A, long time use 2.1A, enough use.Synchronous rectification, High efficiencyNew design, 3 solid state ceramic capacitors(MLCC), more safe and low ripple.
You'd have to consider the voltage drop over the wires. You could put one power supply in a centralized location where you have 110v. This PS would output 12 or 24 volts DC. Then you can use a cheap DC to DC converter at each dot location. Like this:Ailavi DC-DC Buck Converter 6V-24V 12V/24V To 5V 3A USB Output Module
These work like a charm: https://www.amazon.com/gp/product/B00XPZ7I4I
This might actually work really well for you and would allow you to keep your USB cable intact
I researched this several months ago to prepare for my new house. I believe the absolute cheapest way to do what you want is using buck converters. See my post here about how I will power my Aeotec Multisensors.
A few notes...
You should be fine with leaving the buck converter in the wall as long as you insulate it from being shorted with heat shrink or other nonconductive material.
The buck converter from my post can be found on Amazon or at AliExpress if you are patient and want to save some money.
For the head end of this system, I ordered a security camera power supply. I should be able to run 2 sensors per channel for a total of 36 sensors. There are smaller options available if you do not need as many channels.
Yes, I have. I used something like this: https://www.amazon.com/Ailavi-Converter-6V-24V-Output-Module/dp/B00XPZ7I4I/
and tapped off the 12V from the autodimming rear view mirror. Has worked well so far.
DC-DC is preferred for the reasons you note. There are tons of DC laptop chargers and usb outlets.
On parts of my build where they would show and need to access plugging I am using this kind of usb outlet (about 1/2 the price on eBay). Where they do not show and I need a permanent 5v supply I use bare components kinda like this, which are about $2-$3 each shipped from China. Both are on switches so the converters aren't using power when not in use.