Voltlog #85 – STM32 OLED T12 Soldering Station

Today we are taking a look at this soldering station which I got from Taobao (Chinese Ebay). This unit is fully contained, power supply is built-in, it works with T12 Hakko tips and it has a nice 1.3 inch OLED display. It’s powered by the STM32 microcontroller which should make it easy to hack if anyone is interested.

Here are links to the items shown in the video:

Voltlog #66 – Cheap NiMH Rechargeable Battery Testing

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.

Voltlog #61 – Dummy Load Special

This episode will be taking a look at different dummy load models, these are all purchased either from ebay or from banggood so they’re easy to get and inexpensive. I just wanted to show them together and make a bit of a comparison just to help you understand the differences between these models so that you can choose the model that will fit your needs best. I have 5 dummy loads in total, starting from $5 a piece up to $20 a piece.
There might be slight variations of these available for purchase , some might come configured for different maximum power dissipation, some might have enclosure but those are all details that you can figure out on your own. Today I’m just going to point out the major differences and features of each one.

0:54 ZHIYU ZB2L3 Battery capacity tester

2:38 Digital Battery Capacity Tester Model 2

3:16 Analog Dummy Load 100V 6A XHDZ-FZ-2D

5:44 ZHIYU ZB206+ Battery capacity tester

11:10 eLoad USB Data Logging Dummy Load

19:00 ZHIYU ZPB30A1 Electronic load

 

Voltlog #58 – EasyEDA Free Online PCB Design Software Review

The guys from EasyEDA contacted me and asked if I could do this review I accepted and they’re also going to be offering some free coupon codes for my viewers which you can use to order PCBs but more on that towards the end of this video.

EasyEDA being a cloud app it’s supported on every platform / operating system. You get schematic capture, circuit simulation and pcb layout functionalities. You can import files or projects created with other design tools like Eagle, Kicad or Altium and i’m sure it does most of the things that every pcb design tools does.

You can share and collaborate with other people on your projects so that’s a big selling point for EasyEDA and they made sure to put that on their front page. And I’m sure a bunch of other features that are not mentioned on their homepage and best of all you always get to work with the latest version because the app is on the server not on your computer. Another good thing is that you have the whole process from design to finished PCB on one single app or service and you just click through until you get the PCBs at your door and that might be a big advantage for some people.

Now, ofcourse a big concern with these kind of web based apps is what happens if they decide to shutdown the service? Well the guys from EasyEDA say that if they ever decide to shutdown the service they will open source the code and allow people to download all their projects so in theory you are covered, you could host your own server if that ever happens.

For more info, you should watch the video below.

Voltlog #54 – BQ24650 MPPT Charging Module

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.