Category Archives: LEGO

Powering your Raspberry Pi Build Hat based LEGO robot

Posted on 10.Dec.2025 by admin

Some time ago, I ‘discovered’ the NP-Fxxx battery series, which was originally a professional series from Sony, but has become a de facto standard for all photographic accessories and is therefore frequently replicated and offered by third-party suppliers. There are … Continue reading →

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Stromversorgung für den Raspberry Pi basierten LEGO roboter

Posted on 10.Dec.2025 by admin

Ich habe vor geraumer Zeit die Akku Baureihe NP-Fxxx für mich “entdeckt”, ist ursprünglich eine Profi-Baureihe von Sony gewesen, wurde aber zu einem de-Facto Standard bei allem Fotozubehör und wird dementsprechend fleißig nachgebaut und von Drittanbietern angeboten. Dazu gibt es … Continue reading →

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LEGO Spike Essential Hub not charging – fix?

Posted on 15.Dec.2024 by Marek Lewandowski

There’s a long-known issue with the LEGO® Education Spike Essential® batteries that if they are left alone for long enough the hub will stop charging them. You will get a blinking orange light on the hub (instead of solid red … Continue reading →

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LEGO WeDo orange blinking light

Posted on 23.Feb.2023 by Marek Lewandowski

The orange light means that the hub cannot keep its supply voltage up. There’s a step-up converter that makes 5V out of the battery voltage, the orange light is on if the 5V cannot be reached. This can be due … Continue reading →

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Programmierbares von LEGO

Posted on 21.Apr.2022 by Marek Lewandowski

Welche Sets von LEGO kann man stand heute zum Programmieren lernen nutzen?

Posted in LEGO, mindstorms ev3, Powered Up, Spike Prime/Essential | 3 Comments

LEGO Spike – Stall detection – how is the motor control working

Posted on 28.Dec.2021 by Marek Lewandowski
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On motion control with LEGO Spike

Posted on 28.Dec.2021 by Marek Lewandowski
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LEGO Spike Color Sensor (Prime or Essential)

Posted on 18.Dec.2021 by Marek Lewandowski

The Spike Color Sensor is often used for tracking markings on the floor in activities like FLL or WRO challenges. It is important to understand, that the sensor has a certain size of a spot that it watches. To determine … Continue reading →

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Straightening warped LEGO plates, twisted frames and bent axles

Posted on 15.Apr.2021 by Marek Lewandowski

Recently I have purchased a second-hand LEGO set only to find some large, rare (as in: expensive to replace) parts WARPED. I searched the net and found several threads where people reported on similar issues, but no good solution. So … Continue reading →

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Fixing LEGO Railroad switches / points

Posted on 29.Dec.2020 by Marek Lewandowski

So you flip the LEGO switch on your LEGO Railroad system and… nothing happens. Or the switch moves half-way and stops. There is a post here: https://bricks.stackexchange.com/questions/11141/lego-track-switch-doesnt-close-properly describing what I was facing recently. I found a better solution than described … Continue reading →

Posted in LEGO, Powered Up | 4 Comments