Electronics and technology blog    /    User posts

Our team is developing a cloud IoT platform, and we regularly build small projects to test its features: “smart” relays, outlets, string lights, and so on. Some projects turn out to be so interesting that they grow into full-fledged products. We decided to tell you about one such case.

Hello everyone! Let's take another look at a used VeriFone 9V (9.3 V) 4 A power supply. This time, it's model SM09003A. In this review, I'll take a brief detour from the power supply itself and talk a little about other things (what I do at home with power supplies and so on).

Hello again, everyone, and I wish you good health. This time, I’ll be looking at a VeriFone 9V-4A power supply. This time, model AU1370933g.

Hello everyone, and I wish you good health. Today I decided to write a short post. It’s mainly for fellow power supply enthusiasts like me (I’m no pro). This is about a used VeriFone power supply (9V-4A). Today I’m focusing on model Au-7992n.

I tested capacitors at home using an XJW01. Frequency: 1 kHz.

A flashlight that is clearly trying to look like the original Nitecore Tube

Very briefly. When Ali has sales and offers coupons, it's a good time to buy relatively expensive items. More about the coupons below.

Review of a computer power supply rated at 1000 W.

Hello everyone! Today I’m sharing my thoughts on using my very first TWS earbud—yes, an earbud, not a pair. It’s one that I’ve really enjoyed using.

Hello everyone! I’d like to share my thoughts on a gaming mouse from Xiaomi that has left me with mixed feelings. I’ve been using it since April this year.

Hello everyone! Today I’d like to share my thoughts on the first Bluetooth earphones from the well-known Chinese company KZ, which I’ve used extensively since the end of October 2018.

A continuation of my simple, down-to-earth power supply reviews (with useful links).

I decided to write another simple, down-to-earth review of a 24V-20A (480W) power supply.

Review/thoughts aloud on the 48 V-12.5 A power supply.

Hello everyone. I put together a short review of a “new” used 12V-10A board (claimed). First, I apologize for any inaccuracies or mistakes. I’ve never written a review before.

Every time we think Xiaomi really does make everything, a new product suddenly comes along. The Xiaomi AI Translator, a portable voice translator, was released quite recently and is a great deal for the price. Now Xiaomi's lineup has a new device: the HiPee Smart Health Tester.

A new Xiaomi Xiaowa robot vacuum cleaner has recently hit the market, and it is quite feature-packed for its price. A few days ago, the new Roidmi F8 handheld vacuum cleaner became available for pre-order. I wonder if it can compete with the big manufacturers? I've been using Xiaomi products for several years, and I'm sure this handheld vacuum will be powerful enough to handle, for example, pet hair.

Hello everyone! Today I’d like to introduce you to a new and very useful tool: the PM6530D infrared thermometer. You can set the material’s emissivity on this thermometer to get more accurate surface temperature readings. It also has UV LEDs and a temperature and humidity sensor, and you can connect an external thermocouple. A built-in laser pointer helps illuminate the surface being measured. If you’re looking for a professional tool such as a thermal imager, I recommend reading this review (Thermal Imagers: What Are They and “How Do They Work”?) by KIRICH