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Questions tagged [electronics]

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Electronics are the branch of physics and technology concerned with the design of circuits using transistors and microchips, and with the behavior and movement of electrons in a semiconductor, conductor, vacuum, or gas.

104 questions
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69 votes
3 answers
13k views

I built a simple bitshifter in Minecraft yesterday. I wondered if something like this could be built with LEGO? Maybe there is a possibility to build gates with rubber bands and those movable ...
Sibbo's user avatar
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26 votes
1 answer
8k views

Several electric LEGO systems exist: LEGO Trains LEGO Technic Power Functions (PF) LEGO Mindstorms (in several versions) ...? How do these systems differ in electrical properties and which systems can ...
Jakob's user avatar
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19 votes
2 answers
13k views

I got 4 of these in in a bulk lot of Lego, but the lamp is getting quite dim in a couple of them. Is it possible to change the battery in a 54604 light brick? It looks like the brick should open, but ...
Kramii's user avatar
  • 9,131
18 votes
3 answers
8k views

This might sound a little bit silly, but I'm 17 and I've never built a LEGO toy, so I was looking for a first one, to see what it's about. What sets would you recommend I should look at, that are ...
Grewe Kokkor's user avatar
  • 281
14 votes
1 answer
5k views

I've recently ordered a LEGO® 8878 Rechargeable Battery Box: I was wondering if I really need to get the (rather expensive) LEGO® Power Functions Transformer or if I can substitute a (cheaper) generic ...
Kramii's user avatar
  • 9,131
13 votes
1 answer
8k views

What electronics live inside the SPIKE Prime hub? How powerful is the hardware?
jncraton's user avatar
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13 votes
1 answer
5k views

I'm building a project with Raspberry Pi and some other electronics driving the LEGO Power Functions M-Motor (8883) and I need to know how much current those motors draw under load. Has anyone done ...
Robin's user avatar
  • 391
12 votes
6 answers
5k views

I want to place a circuit board on a LEGO baseplate and the circuit board will then be partially enclosed by surrounding bricks and plates. There will be a reasonable amount of airflow available. ...
RickyBoy's user avatar
  • 389
12 votes
4 answers
7k views

Over the holidays I tried the following Python library: https://github.com/undera/pylgbst but I couldn't get it to work. Then again my knowledge of Python is very limited. I'm more experienced with C+...
Michael Verschaeve's user avatar
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12 votes
1 answer
3k views

Is it possible to replace the battery of the LEGO Dino Attack T-Rex head? There's a button on the top of the head that makes the eyes and tongue light up red, presumably via a red LED. There doesn't ...
Alexander O'Mara's user avatar
  • 13.3k
11 votes
1 answer
3k views

I've seen the Talking Sorting Hat set: How are the sounds for this hat produced? Could it be used to produce other sounds?
jncraton's user avatar
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11 votes
1 answer
3k views

I'm curious what the internals of the new Powered Up hub look like? What components are inside?
jncraton's user avatar
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11 votes
3 answers
7k views

In this video showing an example of Great Ball Contraption (GBC), we can see (at 1:35) that some train's powers are used to run Power Functions (PF) motors: That must be more convenient than having to ...
A.L's user avatar
  • 487
11 votes
1 answer
6k views

Does anyone know what the wires do? If the Power Functions train motors are simple DC only 2 wires would be needed or is it more complex than that?
Quorneng's user avatar
  • 221
10 votes
1 answer
4k views

What specific electronic components are present inside the Boost Move Hub?
jncraton's user avatar
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