PFM Control DC-DC 0.9V-5V To USB 5V Boost Step Up Power Supply Module
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Super easy for prototyping Pros: Quite easy to figure out without any documentation, all the pins are either well-labeled or obvious. Good quality for the price.Also it is really small so it could be hidden if you wanted to. Cons: None that I can think of... Work right away and compatible with arduino, mbed and all kind of other mircocontroller boards. I don't have any cons till now and I can not think of any. Especially for this price!!! Other: Easy to interface to my Arduino, good deal. I will recommend this to friends. Very cheap, very affordable. Great product for your projects / prototypes. Recommended, GET ONE!.
It's of good quality It has been successfully tested You can see the attached video for more details
Very good module for DIY USB 5v Power Supply! An old plastic box, an old switch and a AA battery support. Is All!
Step up converter as described.
Все нормально
Напряжение держит стабильно с током в 0,5 ампера справляется без перегрева
Me llego en el tiempo establecido, ya lo probé y me funciona ala perfección. gracias
Worked perfect with dual pack of CGR18650CG from my old battery laptop. I connected it to together and connect to old smartphone and after a while it start charging :)
This is my 3rd order of these modules. Highly recommended.
Товар пришел, всё в порядке! Всё работает!) Теперь можно сделать поделки.)) The item came, all right! Everything works!) Now you can make crafts.))