HiLetgo DC DC Module Charger Arduino Review

I always have old power supplies but they all have different voltages. I have old accessories for laptops, power supplies for routers. With this device you can convert almost any 6V to 24V power supply into a 5V power supply for Arduino USB and Raspberry PI boards.

They work a lot better than I thought, especially considering the price. So far I've used 2 for OctoPrint settings on individual printers and haven't had any power issues yet. It's easy to solder the wires, and they're small enough to slide anywhere. Great item to throw in a box for your project. I'm thinking of wiring one of my UPSs to charge things during a power outage.

Only have time to test one so far as I only got them yesterday but the one I tested rated my windows tablet very well at 1.7A charged the special 3s2p 18650 package that I made. The tiny regulator chip feels quite warm but might be ok for silicon, haven't tested the actual temperature yet. I haven't had the coil squeak I usually hear from USB boost converters. So far I'm happy with it, especially for the price.

The polarity (+/-) is not drawn on the board supplied, nor does it help that the circuit supplied does not exactly match that in the photo. On the other hand, connect it to the inputs (+/-) as shown in the photo and everything will work fine. Feels quite warm but not hot when 5V/1.3A is applied to my phone. I didn't connect it to an oscilloscope to measure ripple, just a simple USB hub with a built in meter.

I get a voltage message when I use these octopus converters without attaching anything crazy to the Pi, just a camera. I strongly recommend not buying them for this purpose. If it works for you, then you're in luck. There are no markings on the board that have a positive and a negative unless you are really good with your electronics. You will have a hard time soldering properly. Don't skimp, just buy something better for your Pi, you'll still get it.

I have a pack of 5 and I only use 1. I use this to power a Raspberry Pi 4 with a Pi Camera on a 24V power supply for 3D printers Power the USB wall charger with Octopi but I can't get them with this one. The voltage is less than 5 volts when the pi 4 is connected via USB power meter. The Pi doesn't take the full 3 amps. I expect the voltage to be even lower when drawing 3 amps. The polarity of the inputs is not marked but not difficult to determine. The negative input has continuity to the…

Every modern USB power bank switches off at very low loads, even those with a reload function (not a defect but overcharge protection). I wanted to power a USB alarm clock without using a wall wart and no power adapter would stay on. Enter this device. Soldered to the locking connector I can use a 9 volt battery as a last resort or for longer duration a 6 cell battery holder (six because I wanted to use rechargeable cells and 4x1.2v is only 4.8B which is too is little ). The USB lamp is also…

I bought 15 of these and powered them directly from Creality Ender 3 printer power supplies (24V) so I can integrate my pis into printers and also rid the precious wall of plugs I have ended up vainly to use Pi power supplies. The first batch of these arrived bent in a bag and I had no problem swapping them out. Out of 15 I had one that wouldn't turn on and one that gave me a lightning bolt icon in octo print meaning the Pi wasn't getting enough power. All others worked perfectly and had no…