USB-C

Staré nabíjecí adaptéry
2025-12-12

USB-C, myths and nonsense.

An article about USB-C was published on HN, and I simply have to respond. Besides a few inaccuracies, there has also been a wave of nonsense and myths on social…

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2025-12-12

Soldering pen Sequre S99 – what is it like? Opinion from a hobbyist’s perspective.

The Sequre S99 is an interesting soldering iron. It combines high performance with very high-quality JBC tips, and the price of the soldering iron is well below 1000 CZK. What…

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2025-11-04

I tried the FNIRSI FNAC-28 USB tester. It’s a cheap and interesting tester, but it doesn’t support one important fast charging protocol.

The FNIRSI FNAC-28 USB tester is a handy and affordable tool for users interested in monitoring what happens during the charging of their devices. This device can measure not only…

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Fnirsy DPS-150 - displej, ovládání a podsvícené svorky
2025-09-30

Pocket USB-C adjustable power supply DPS-150 with a power output of up to 150W. It fits on any desk, but the controls are a pain.

I got my hands on an interesting pocket-sized USB-C powered adjustable power supply, the DPS-150 from Fnirsi. I conducted some basic measurements, and the power supply pleasantly surprised me. However,…

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Tester kabelů - USB-A i B, USB-C, Lightning a další
2025-09-16

I didn’t expect that. I can throw away a third of my USB-C cables. They lack the connected signals, and I found out thanks to this tester.

Who hasn’t experienced this? You need to quickly charge your phone, plug it in, and after an hour, there’s only a 10% increase. Or you want to transfer data to…

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2025-08-08

Review of the FNIRSI HS-02A Soldering Iron

I got my hands on a soldering pen from the brand FNIRSI, model HS-02A. After a few hours of soldering with it, I can share my impressions. The soldering pen…

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