Reddit Reddit reviews SMAKN DC/DC Converter 12V 8-23V Step Down to 5V/3A 5V 3A 15W Power Supply Module

We found 18 Reddit comments about SMAKN DC/DC Converter 12V 8-23V Step Down to 5V/3A 5V 3A 15W Power Supply Module. Here are the top ones, ranked by their Reddit score.

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SMAKN DC/DC Converter 12V 8-23V Step Down to 5V/3A 5V 3A 15W Power Supply Module
All epoxy sealed containers with Waterproof Housing; Non-isolatedHigh efficiency: >96%; Reliable, low heat dissipation max. 40 ℃;With overload / over-current / over / low voltage protection, stable performance.Light compact, convenient to use and transport; Auto recoveryWidely used in Car device, such as LED Display, Hard Disk Player, MP3, DVD, GPS, etc
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18 Reddit comments about SMAKN DC/DC Converter 12V 8-23V Step Down to 5V/3A 5V 3A 15W Power Supply Module:

u/mr1337 · 3 pointsr/LifeProTips

Add a fuse: https://www.amazon.com/dp/B011I9QZX2/

You will also need a 12v to 5v converter: https://www.amazon.com/SMAKN-Converter-Power-Supply-Module/dp/B00CXKBJI2/

12v positive side of the converter goes to the add-a-fuse. For the 12v negative, screw it to any bare metal under your dash. Pre-drill or use a self-tapping screw.

5v positive and negative go to dashcam's positive and negative. In the case of a USB cable (which is what I have), red and black are positive and negative, respectively.

Make sure you look on the packaging to see if your dash cam is 5v or 12v. You can skip the convert if it's 12v. If it's USB, it will be 5v though.

One last note: Add it to a fuse that is only active when your car is on. Test this with a multimeter (one side on the fuse, other side on bare metal)

u/rntr200 · 3 pointsr/raspberry_pi

You would need a soldering iron. You can desolder the av connector and solder it to the pi. Im confused how you want to power it. If you want to power everything off a 5v in you need a dc to dc booster like this to power the screen. Or if you want to power everything off 12v like the monitor needs you can use something like this. The pi needs about 2amp to run so just check how much the screen needs (its on the back sticker) to figure out your input

u/mr___ · 2 pointsr/DIY

I would avoid a 7805 or any other linear regulator, and get an encapsulated dc-dc converter module. They use switching supplies and are far more efficient / generate far less heat.

https://www.amazon.com/gp/aw/d/B00CXKBJI2/ref=mp_s_a_1_1?ie=UTF8&qid=1474722933&sr=8-1&pi=SL75_QL70&keywords=12v+5v+converter

u/2down1up · 2 pointsr/RASPBERRY_PI_PROJECTS

If you are getting under power symbol it's likely due to a shitty part.

You need a step down convertor... so you can go with something like this and add USB yourself:

https://www.amazon.com/SMAKN-Converter-Power-Supply-Module/dp/B00CXKBJI2

Or something like this,
https://www.amazon.com/dp/B01F2WXUFW/ref=psdc_2407770011_t2_B01N6S2SNM

etc.


u/AssesAssesEverywhere · 2 pointsr/CarAV

I bought a 12v to 5v step down converter. I can't find the exact one I bought in my amazon history for some reason, but it is similar to this : https://www.amazon.com/SMAKN-Converter-Power-Supply-Module/dp/B00CXKBJI2. I then bought a 12v 10amp 2 pole rocker switch that lit up when powered on from Auto zone and hooked it in between my fusebox and the converter. Then I just turned it on to power the Pi up and then shut down the Pi correctly before powering it off.

I have seen a few tutorials on adding a small battery and creating some sort of auto shutdown script on the PI once the main power is off, if you want something automatic, but didn't look too much into it. I may revisit it once I get everything installed again, hopefully by this weekend. Have my DD components and coaxials coming in this week and I'll be ready to rock and roll!

u/chris_hinshaw · 2 pointsr/raspberry_pi

I was working on something very similar yesterday. Yes you will need to power the servo's separately. I was able to get everything from Amazon yesterday. You will need a power supply. I bought a 12V power supply from amazon.

Battery Pack
http://www.amazon.com/gp/product/B007RQW5WG/ref=oh_aui_detailpage_o07_s01?ie=UTF8&psc=1

You will also need probably two dc-dc step down converters
http://www.amazon.com/gp/product/B00CXKBJI2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

You can split these with a simple adapter and connect both of your step down converters
http://www.amazon.com/dp/B00NNL1YA8/ref=twister_B00NNL1XIG

You will wire the output from one converter to the one side of your breadboard and the other to the otherside. You probably want to separate the power from the pi and your servo's so that you don't get a voltage drop which could damage your pi. There are cheaper solutions to this like using a simple voltage regulator but you would give up 7v in heat. So it is recommended to get an efficient dc converter.

My 2cents

u/ChrisVza · 1 pointr/raspberry_pi

I like using 12V switch mode PSU units for my gadgets. They're cheaper and expandable for other purposes. The PI is 5V if I'm not mistaken. You'd need to step the voltage down to 5V.

Check out these links:

https://www.amazon.com/SMAKN-Converter-Power-Supply-Module/dp/B00CXKBJI2

http://www.ebay.co.uk/bhp/5v-power-supply

https://raspberrypi.stackexchange.com/questions/7913/powering-a-pi-from-12v

u/SmileAndDonate · 1 pointr/ifttt


Info | Details
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Amazon Product | SMAKN Dc/dc Converter 12v Step Down to 5v/3a Power Supply Module
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u/rw950431 · 1 pointr/ifttt

If you have the solar charging bit worked out you can buy 12v to 5v converters (example https://www.amazon.com/SMAKN-Converter-Power-Supply-Module/dp/B00CXKBJI2/ref=sr_1_3?ie=UTF8&qid=1501760134&sr=8-3&keywords=12v+to+5v+converter or theres lots of others). Otherwise you can buy the complete solar usb powerbank kind of thing. Be warned though- I bought one to power my Wemos project but the current drain from the Wemos is not sufficient to keep the powerbank activated so it runs for a minute or so then shuts off :-(

u/isanyonekeepingtrack · 1 pointr/Reprap

You need a DC-DC converter. They're pretty cheap on Amazon. Then just run the output from that to the 5V power pins on the GPIO connector on the rpi. The downside of doing it this way is that you'll have to make sure you do an ordered shutdown of the raspberry pi if you power things off. They were too cheap to put a PMU chip on the raspberry pi.

It'll work fine for Octoprint. I use smaller Nanopi Neo boards without issue. Don't do slicing on it though.

u/PickleSlice · 1 pointr/homeassistant

Don't be sorry for the wall of text, that link was very helpful.

I'm giving up on the RGBW and going with standard RGB for the time being.

If I go with one of the Magic Home RGB controllers, they state they can go all the way up to 12v, although I'd probably rather run 5v to it. I could get this step-down (as the article suggest) with this power supply. Or can the Magic Home take 12v no problem?

u/GanondalfTheWhite · 1 pointr/woodworking

Oh, that part's not too difficult. You could get a 12v power supply, and step that down to 5v for the Pi. Use the 12v for the LEDs and the 5v for the Pi (just cut up a micro usb cable and solder the wires to the power supply output, easy to find how-tos for that online) . Then use the Pi to drive 3 transistors (Google 'raspberry Pi led transistor' for that). The transistors act like switches - controlled by the Pi but with the power coming from the 12v supply.

Does that make sense?

Edit: here's one option for your step down convertor.

u/under_design · 1 pointr/raspberry_pi

Get a 12v -> 5v inverter and connect it to the cigarette lighter port (hack an already existing one?). It'll power up and down with car ignition. Make it automatically join your home wifi network, and sync folders when it joins that network, and expect it'll do that every time you pull into the garage, and let it idle for a minute to ensure upload has completed.

u/apathycoalition · 1 pointr/raspberry_pi

If you've got a good power supply the pi will be able to run the arduino. You'll still need a power supply for your stepper. If done properly you could use a 12V to 5V step down converter and run the entire thing from the 12V supply.

If you're this far into a project already why are you just now asking about power requirements? This should have been the very first thing you addressed.

u/WorkoutProblems · 1 pointr/motorcycles

I was actually planning to get 144/m.

This is what I was originally thinking

>So from a full day of research here's what I'm thinking:


>2M of RBGW SK6812

>Splitting them into 12 - 6 inch long strips. (Probably only use 6-8 but figured better to have more than not enough)

>Battery power through 7.5A fuse (the strip is rated at 43W/m at 5V the next fuse is 10A so figured go lower to be safer?) and relay/switch tapped to ACC line run through 12v step down to 5v through ALITOVE bluetooth controller into wago connectors with diodes going to each strip

>https://www.amazon.com/BTF-LIGHTING-Individually-Addressable-Flexible-Non-waterproof/dp/B079ZX7LY3/ref=sr_1_2?ie=UTF8&qid=1539729680&sr=8-2&keywords=rgbw%2Bsk6812&th=1

>https://www.amazon.com/ALITOVE-Female-Connector-WS2812B-SK6812-RGBW/dp/B071H5XCN5/ref=sr_1_3?ie=UTF8&qid=1539737420&sr=8-3&keywords=LED+connector+3+pin

>https://www.amazon.com/SMAKN-Converter-Power-Supply-Module/dp/B00CXKBJI2/ref=sr_1_3?ie=UTF8&qid=1539736197&sr=8-3&keywords=12v+step+down+to+5v

>https://www.amazon.com/ALITOVE-Addressable-Controller-SK6812-RGBW-Programmable/dp/B07G77YD9L/ref=sr_1_1?ie=UTF8&qid=1539734109&sr=8-1&keywords=12v++SK6812


>https://www.amazon.com/gp/product/B0107SYYGU/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

But dumb LEDs sounds a lot more enticing in regards to DIY, since I really only want them to be solid white (only thing legal in my state) as long as they would be as bright as the smart ones.

Any recommendations on brands or codes I should be looking for - for dumb LEDs? I've only been researching WS2812 & SK6812 as suggested by other redditors here

u/is_it_beer_30_yet · 1 pointr/Dashcam

Ok, so something like this? 12v input into cigarette port connect to 12v input of module and 12v output of module connect to 12v neutral wire coming from cigarette port? Then 5v output on module goes to dashcam wire?

edit*

u/Mortimer452 · 0 pointsr/HomeImprovement

USB outputs 5v, that is probably what these were designed to be used for, powered by USB.

The specs say 0.3W per led, the description says "150 pixels" and I'm guessing that means 150 LED's, so that's 45W per strip, but that seems like a LOT for USB.

You could use a 12v->5v step-down transformer to reduce the 12V voltage down to 5V but that one only handles 3 amps.