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As you may know, the RD6006, 6012, and 6018 power supplies support WiFi connectivity when the corresponding module is installed. However, the settings menu and software also include an RS485 option, indicating that this communication interface can be used as well. Not long ago, RD RIDEN added RS485 modules specifically for these power supply models to its store.

A micro-, or perhaps even nano-review of little gadgets for radio amateurs, designed simply to make your DIY devices look a bit neater.

When I ordered a multichannel battery tester, I also picked up ten thermal switches from the same store, ZKEtech. I needed them to control the cooling fans in high-power electronic loads and power supplies. I meant to review them right away, but then forgot about it, so today I decided to make up for that oversight.

For one of my projects, I bought a small protection board. Its specs are modest: 3S, up to 10 A. In fact, I needed even less, so today I'm not just reviewing the board, but also making a small modification.

I recently posted a review of 32700-size LiFePO4 batteries, but as you can imagine, you can't use batteries without a protection board, so I ordered one too. Since I had it on hand, I put together a short review in case it might be useful to someone.

A brief look at a non-contact sensor for controlling various loads, although its main use is still controlling lighting.

Today I'm reviewing a kit for building a useful device of your own: a speaker protection circuit. I'll explain what it is, why you need one, and how to assemble it. And of course, there'll be a few tests.

In today’s review, I want to show you various types of sockets that, in my opinion, are perfect for all kinds of power supplies and electronic loads, even though they were originally designed for use in audio equipment.

This isn’t my first review of various thermal interface materials, and today I’m going to try another thermal paste and another thermal pad. They’re useful things for electronics hobbyists, computer enthusiasts, and others, so I decided to test them out of curiosity. There’s also a bonus in this review: a test of three types of thermal adhesive and one more thermal paste.

Continuing my reviews of all sorts of interesting things from Tao, I decided to write about something I ordered simply "for fun"—partly out of curiosity, and partly because I really like VFD displays. And let's not forget that every beginner electronics hobbyist is supposed to build a clock of their own :) These aren't my first clocks, of course, but whenever I build something like this, I remember my first ones, based on the KR145IK1901. So today's review is more of a nostalgic look back at clocks.

Not long ago, I reviewed a thermally conductive adhesive for attaching all sorts of heatsinks to all sorts of electronic components, and one of my readers asked me to test a few more similar compounds. So today I’m reviewing—or, more precisely, testing—three types of adhesive and one thermal paste. And at the end of the review, there’ll be a table and a graph bringing together all the thermally conductive (and not so conductive) compounds and materials I’ve tested.

Not long ago, I posted a review of a QC 3.0 charger. It was very inexpensive when I bought it, but turned out to be not fully functional. In fact, the QC feature itself didn't work. To fix it, I found the right chip on Taobao, ordered it, repaired the charger, and decided to report back in case it might help someone.

This story began quite a while ago, around the middle of August, when I was writing a review of the Cubot Power phone. After publishing the review, I put the phone aside for a while, and a few days later I needed it to test how well it could scan barcodes. But then I suddenly discovered that the camera's autofocus had completely stopped working. That's what can happen sometimes when you take something apart. More after the jump.

Following up on my review of buying ceiling lights, I decided to write an article about modifying their drivers—or, more precisely, about some interesting capacitors from Samwha, different types of electrical cable, and the details of working when you have a lot of boards to modify. I hope you find it interesting and useful.

As promised, here's a review of the second part of the package with battery holders. This time I'll show you enclosed holders that might come in handy for various DIY projects. This time, I'll not only take a look at them, but also do some measurements.

Another mini-review of 18650 battery holders, this time for four cells.

I've run into situations several times where using thermal paste was either inconvenient or impossible, since it requires constant pressure to keep the heatsink against the component. So I decided to try out another useful product: thermal adhesive. Today, I'll take a quick look at it and, of course, put it to the test—especially since I've already posted a couple of reviews of various thermal interface materials.

I recently received another batch of holders for 18650 batteries and decided to post a few photos in case anyone is looking for something like this.