Voltlog #273 – InTheMail

Welcome to a new InTheMail, the series that will touch both your passion for electronics and your bank account at the same time. Before I get started I’m gonna take a second to reminding you to subscribe to the channel and hit the bell notification icon because that’s the only way you will know for sure when I upload new videos. Now let’s start with this small esp32 based development board, it has a built-in 1.14 inch color tft lcd and I think that’s a nice feature of this dev board because if you want to connect some sensors and see the readings in real time, you don’t need to wire a display externally it’s built-in.

Another cool feature is that we have built-in battery charging at 500mA and you can power this board through the provided two pin jst connector with a one cell lipo battery which will then charge when connected to power via the USB Type-C port. There is also a CP2104 for the usb to serial conversion and that makes it a pretty well balanced development board for the ESP32.

The board comes loaded with a test program from TTGO, it shows this image then cycles through red, green, blue on the LCD which is a good idea because you can verify the board is functioning ok after the long journey it takes from the market in shenzhen to your door and we all know how well these packages are protected during shipping.

Voltlog #269 – 11.11 Shopping Suggestions For Makers

Welcome to a new Voltlog, it’s November and that means the biggest shopping event happening in Asia is coming up, I’m talking about the 11th of november. There are some numbers published for last years event and it seems they registered more than 30 billion in 24 hours in sales, yes you heard right, billions. So it’s a very big event with nice discounts and opportunities for makers like us to get some new gear. That’s why I prepared this video which will be published 1-2 days before the event so you can get some ideas of stuff that you could purchase. I assembled a list, these are products that I’ve tested and used myself which I think are good value for money and a nice addition to any hobbyist lab.

Voltlog #252 – How to fix a solder bridge

Welcome to a new Voltlog, today I want to talk about solder bridges and show you how to deal with them. A solder bridge can happen for many reasons, incorrect soldering temperature, incorrect amount of solder being used, too little or no flux, or just the incorrect technique for soldering but they all basically mean the same thing , a blob of solder shorting two or more conductive surfaces on your PCB.

Modern printed circuit boards which typically get soldermask coverage even between IC pins will help prevent this problem because molten solder normally doesn’t stick to the soldermask surface and so it’s harder to form a bridge across that surface.

But even with enough experience and the proper technique solder bridges can still happen if you do hand soldering on fine pitch ICs, it’s just part of the soldering job. It’s true that as you get better at soldering they will happen less often but don’t think they go away forever. So it’s good to know how to deal with them.

Voltlog #243 – TS80 VS KSGER T12 Soldering Iron Comparison

Welcome to a new Voltlog, yet another soldering iron comparison video and today it’s between the TS80 and the KSGER T12 station. Everyone knows the TS80, is quite a popular portable soldering iron, works with USB type C input, it needs a quick charge compatible adapter to reach full power and it’s quite a capable soldering iron. The drawback is the cost of the tips, it uses this proprietary type of tip and the cost is about $20 a piece.

On the other hand we have the KSGER soldering station which I reviewed in Voltlog #232. This station has a built in power supply and uses the well known T12 tips which are widely available on aliexpress, for example you can get KSGER T12 branded tips for about $3 a piece. I think that’s important, because I have 2-3 different tip shapes that I use regularly and maybe another 2 or 3 that I use occasionally for odd jobs. You can’t just rely on a single tip shape and purchasing the same number of tips for the TS80, is not going to be cheap.

Voltlog #234 – The Problems I Found With The KSGER T12 Soldering Station

In a previous Voltlog I reviewed this KSGER T12 soldering station, it was the first station I got my hands on from this manufacturer, it’s version 2.1S and I was pleasantly surprised by the features it has. If you haven’t seen that video I will link it on screen right now. Since then I’ve been using it as my main soldering station and I’ve been pretty happy with how it works but some of my viewers who have been using these for longer have pointed out a few things I missed in the video so this will be a quick update video to show the things I’ve missed previously.

Voltlog #232 – My New Prefered T12 Soldering Station KSGER V2.1S

Out of the three T12 stations that I have, this is now my favorite and will be the one I use daily. I’m not sure if the performance is higher or similar to the other I have, I’ll probably do a separate video to compare them but it’s just the user interface, the menu options, the nice handle that make me wanna use this instead of the others. Yes it has a few disadvantages regarding this handle, it does get warm and it doesn’t really fit that well with a regular stand but I can go past those disadvantages for how nice this station is. If you’re looking for a T12 station this is definitely the one to get.

I also did a second video where I showed the problems I found with this soldering station and if they can be fixed by the user or not.

 

Voltlog #226 – InTheMail

Welcome to a new InTheMail, the series that will touch both your passion for electronics and your bank account at the same time. We’re gonna start with this set of tweezers from Vetus. A few months ago I was considering buying some more expensive electronics tweezers but the good ones are really expensive when you include shipping as well so in the end I decided to give these a try. I’ve had Vetus tweezers in the past and some were good some were bad. This time I asked multiple sellers on Aliexpress if the tweezers are original Vetus or not, some responded and promised their goods are original. Coincidentally or not those who said their products are original also had higher prices. In my experience with suppliers, they never lie about the origins of a product if you directly ask them so I tend to believe that what I have here are genuine Vetus tweezers

 

 

Voltlog #215 – Is a genuine Hakko T12 tip much better than fake one?

A while ago in voltlog #186, I compared the TS100 soldering iron to the STM32 T12 based soldering station and the results were pretty interesting to watch, if you haven’t seen that video there will be a link in the video.

As we all know the market is flooded with counterfeit or replacements for hakko products. So I’ve always wondered how does a genuine T12 cartridge tip compare to a replacement or fake hakko tip. So today, we’re going to test a genuine T12 tip vs a replacement one. This is my genuine tip, I got it from an authorised reseller, the cost was $20, shipping excluded. As you might notice it says T15 on the packaging but don’t worry there is no difference between T12 and T15 tips, except they use a different part number depending of the markets. T15 for EU and US markets and T12 for Asia as far as I know.

Voltlog #212 – DIY Silicone Lead

Welcome to a new Voltlog, today I’m making a nice flexible extension lead for my TS100 soldering iron. I know many of you might not be interested watching me build such a simple extension lead but I think you could at least get a good tip on this type of silicone cable and where to get it.

I was searching for silicone cable with two wires that came somewhat attached in a single wire and all I was finding was double insulated silicone wire on aliexpress which was not cheap and at the same time I was worried it wouldn’t be as flexible and thin.

Until someone recommended in the comments I should try this power supply wire for tattoo machines. You can buy this stuff from ebay or aliexpress for under $3 shipped.

Voltlog #194 – Gift Ideas For Makers – Christmas 2018

Welcome to a new voltlog, so december is coming up and some of you might be thinking what gifts you could offer to your loved ones. I thought I’d share my ideas and what I would like to receive as a maker or hobbyist. The criteria for choosing these items were mainly to be decent quality products, at affordable prices and be things that a maker would later use in his projects. As usual you will find links in the description on the video on youtube to places where you can order these online.

So these are my recommendations for you, I would for example be happy to receive any of the above and that’s how I made this list, thinking about what I would be happy to receive or what would be really useful and fund at the same time for a maker. Let me know in the comments below if the list helped you in any way to choose the right gift for someone. Thank you for watching!