Tag: power measurement

QI Wireless Charger Charging Pad for Samsung Galaxy S7 S6 edge Note 5 Nokia HTC 8X Google Nexus 5 6 7 Micro USB QI Phone Charger (WHL #32)

Here’s a random thing – a wireless Qi standard charger for phones!

I don’t even have a phone that is Qi compatible, but at work we’re looking into wireless power distribution AND data transfer at the same time. So I figured I can afford 1,74€ at AliExpress (mid-October) and get such an unit for myself. You know, dissect it, learn how it works, modify it to change characteristics. I previously had a look into the Royer converter or Royer oscillator for an entirely different thing – and here’s where ends meet. […]


USB detector 3.0 High voltage 4 bit OLED QC 2.0 Digital detector voltmeter ammeter voltage current power capacity tester meter (WHL #17)

New at Wan Hung Lo:

…wait, what?

(I’m pretty sure you’ll be able to find my address if you want to, just making it a little harder for google to index it as an image…)

So, what is it actually? Sure, it’s the USB power meter from the blog title. Who would have thought!
Bloody kids with USB 3 toys! Back in my days, we had…umm, good old RS-232 :lol:

I bought this one month ago at AliExpress for 8,61€ including shipping. As you can see, they decided to use some tracked mailing instead of the “ah, no worries” cheapo variant. […]


DC 12V 5M 300LEDs Not Waterproof Single Color RGB LED Strip 5050 SMD 5630 3528 Flexible Light Neon Lamp Tiras LED Light Garland (WHL #7)

…also known as

NEW DC 12V Not Waterproof 5050 5630 3528 Single Color RGB LED Strip 5M 300LEDs Flexible Light Neon Lamp Tiras LED Light Garland

DC 12V 300LED 5M LED Strip 5050 RGB 5630 3528 3014 Not Waterproof LED Strip Light Flexible Neon Lamp Tiras LED Light Tape Stripe

or

5m/roll SMD 5630 DC 12V Not Waterproof LED Strip White / Warm White String Lights Fita Lamps for Home Lighting Cabinet Decorate

Well, you get the idea. It’s LED strips this time, and I chose 5630 size in warm white color. I’ve been ordering quite an amount of these, and in hindsight, I would rather buy A LOT of them instead of getting 1-2 reels at a time. […]


Weißen 128×64 0,96 zoll oled lcd led-display-modul für arduino 0,96″ IIC spi kommunizieren (WHL #6)

…Hi :cool:

I know, it’s been a while. Busy working, busy moving, busy buying metric shittons of furniture that’s not easily available in my size (or budget, or space, or all of them) and takes ages for delivery. Although this city is considered large for German terms, it’s not easy to get what you want – you might as well live in a backwater town. Well, actually I moved to such a lovely place and I couldn’t be more satisfied :)

About the promised “organic” next post: Here it is, I’m back. I’ll also throw in the other headline descriptions, as I actually bought another one for me (which I will review now), and two more for a work colleague who already snitched my first unit. […]


New at Wan Hung Lo: Open Source Hardware! Presenting the USB A-to-Micro bridge (WHL #4) (updated)

Oh well, I already announced it’s gonna be fake. But the other way round ;)

A while back, I saw the USB A-to-Micro bridge from youritronics. I already own one of these medium quality USB power meters that display voltage and current in an alternating fashion every few seconds. But complete control over power, data lines and also shielding is new. So I wanted one. In the short comment section however, someone noted that the signal routing probably isn’t the best. I had some spare time after Christmas this year, and I also wanted to test the Platinensammler (PCB aggregator) service from Jakob Kleinen. […]