This is a review of the Fei Lun FT012 RC brushless racing boat. The FT012 is actually an upgrade of the FT009. This new version has a brushless motor which makes it very fast at max speed of 45km/h
Checkout the FT012 on Banggood and here is a list of spare parts you can buy for this boat.
This week I build a DIY bluetooth 4.0 audio receiver. I used the CSR8635 bluetooth module, a recycled lithium battery cell that I got out of an old laptop, a TP4056 battery charging & protection IC and a DIY PCB I made myself.
Here are links to these items if you plan to build one yourself:
Or you can just buy a ready-made bluetooth receiver.
Welcome to another Voltlog, today we’ll be taking a look at what I’ve been receiving in the mail recently. As much as you guys like watching this stuff, I also like getting all these electronic modules from China. I find it interesting every time I get my hands on a new circuit.
As always I appreciate feedback and discussions in the comments section below, please let me know what you think and don’t forget to like the video, that is always a clear indication of what kind of content you guys like seeing.
Here are links to all the items shown in this video:
Hello and welcome to a new InTheMail, the series that everybody seems to enjoy, myself included.
Here is a list with links to all the items shown in this video:
It all started a few days ago when I was talking with a friend and he suggested, since we do most of our phone charging at night, why not charge them at a lower rate for increase battery life. As you may know, when you increase the charging current, charging happens faster at the expense of losing battery life over time, you get fewer battery cycles before it starts losing its capacity.
So I decided to build this small gadget, that goes between the usb output of my charger and the usb plug from my charging cable. In my case I have an Iphone and the charging current can be limited to 500mA by having a set of resistors on the USB data lines.
Links for the parts used to build the project:
If you were following my InTheMail videos you probably seen these green rechargeable batteries that I got from ebay quite cheap, I think they were like 50 cents a piece. I got 4 pcs in AA size and 4 pieces in AAA size and little did I know about how crappy these could be.
It’s been a couple of weeks since I’ve uploaded any videos, that’s because I was away for a short vacation but I’m back now and mail items have been gathering up.
In this video I am taking a look at this compact BQ24650 Charging MPPT Module made by YZX Studio in China. You can use this module to improve the efficiency of your solar system while charging your battery.
A new InTheMail video because mail items have been constantly coming in. I hope you’ll find it interesting and if that’s the case, hit that like button so I know you like this kind of video.
Here is a list of items shown in this video:
You can find links for all of these items in the video description.
Today we’re going to be making a DIY lithium battery charger and more specifically aimed at charging 18650 cells. I sometimes take apart some of these laptop batteries to recover 18650 cells and I have a bunch so far that I kept. Every-time I salvage these cells I test them before deciding to keep them or not.
As you can imagine it takes time and I need to charge multiple cells at once. So I will be making a charger that can handle 4 x 18650 cells but the project is scalable and you can increase or decrease the number of cells it can handle according to your needs. As usual, links for all the items will be in the video description.