Author Archives: Marek Lewandowski

Elgato Camlink 4k vs. China “HDMI to USB” converter

Posted on 2020/12/18th by Marek Lewandowski

A lot was posted all over the internet about capturing HDMI output and whether CamLink is worth its $120 price tag since there are $20 alternatives out there. But as the other sources deal mainly with the image quality, I dig a bit into what the hardware differences are and why they are important too. Continue reading →

Posted in rants etc. | 1 Comment

LEGO Classroom for EV3 bugs (Windows/Android)

Posted on 2020/12/13th by Marek Lewandowski

Lego has released their Classroom app for Windows/Android. Which is great, as now you can actually do some serious programming on your Android tablet (previously you had to go for a full-fledged Windows system to get variables, custom blocks etc. … Continue reading →

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Lego PoweredUp bugs/missing features

Posted on 2020/12/13th by Marek Lewandowski

Lego Powered Up is a mixed bag of features. There are some great ideas and many not that great. I sometimes wonder, if the app gets any sort of testing before being released to the public. It gives me the … Continue reading →

Posted in LEGO, Powered Up, rants etc. | 3 Comments

LEGO Powered Up Connector

Posted on 2020/09/26th by Marek Lewandowski

Recently (years, not decades) LEGO introduced a new family of motors, sensors and control system – it was and is a bit confusing, but whether you think of LEGO WeDo, Control+, Powered Up, Spike Prime or the new Mindstorms 51515 … Continue reading →

Posted in LEGO, Powered Up, Spike Prime/Essential | Tagged , , , | 126 Comments

Calibration of an Absolute IMU-ACG (or IMU-A / IMU-AC) by Mindsensors (Mindstorms EV3 acceleration, compass and gyro sensor – 9DOF)

Posted on 2020/09/07th by Marek Lewandowski

So I got an Absolute IMU-ACG sensor made by https://www.mindsensors.com/. And it was a lemon to boot. My luck was, I bought it via Generation Robots. They made a short deal out of it and I got a replacement sensor … Continue reading →

Posted in LEGO, mindstorms ev3 | Tagged , , , | 2 Comments