Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Questions tagged [electronics]

Use this tag for questions related to how to use control electronics from the Raspberry Pi, and how to control the Raspberry Pi from electronics.

272 questions
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Control several motors using Raspberry Pi : What kind of interface?

I'm setting up a small personal project, in which I need to control several motors (1-12), being able to set independently the speed (rpm), and direction of each motor (even changing direction following a schedule for example). I'm more of a…
Florian.C
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Electronics manual for noobs

In my faculty course I didn't have any introduction to electronics... just programming. So I want to start small thinks with the GPIO of the raspberry pi but I even to plug a simple led is not straightforward. Other problem is to interpreter the…
Pipe
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Run model train with RPi

I am trying to figure out how to run my model HO scale train using my Raspberry Pi. While I have found videos on YouTube of people operating their model via RPi, I can't find any way to do it myself. Does anyone know code or the setup to get this…
jgpenrod
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control mecanno 4.7v motor with pi

I am trying to build an RC car and in order to make it work I want to control the motor with my pi.. The motor is Meccano Part #D469, a 4.7v motor. If I have…
thecanmancan
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1 answer

Raspberry Pi 3B ripped off resistor (C187)

I need help on my Raspberry Pi 3B. I accidentally broke a small part of it and it fell on the ground which is the reason I cannot find it anymore (It's just sooo small.). That is an image of the Rpi 3B with a red sign where i ripped off that small…
keksklauer4
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How to electrically discharge myself before touching the Rpi?

I have seen here that I should discharge myself electrically before touching the RPi? The presenter suggests a bare metal water pipe. I don't have this at hand. Are there other ways I can discharge myself? What does it mean to discharge myself?
charlesdarwin
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Raspberry Pi 1 Model A and peripheral component compatibility

I have a Raspberry Pi 1 Model A and have a simple hobby project I'm tinkering with. I will have two pushbuttons (PB1 and PB2 respectively) wired to the GPIO pins, as well as a buzzer and an LED. The idea is to power this on with batteries. When the…
smeeb
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3V3 enough for a 5V relay?

I currently have this relay, and it is a 5V relay (for the control circuit). Seeing as how our GPIO pins are rated at 3V3, I connected constant 3V3 power to Vcc and a GPIO pin to In1 to actually control the relay. This works well, but seeing as how…
Thomas Stringer
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eBoot Mini DC-DC Buck Converter to power Pi-4 B

I'm a noob so please have patience with me. I have a 12V power supply to charge a motor driver, that I also want to power my Raspberry Pi-4B. I bought these mini buck converters on…
Kevin
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Flow of current in the circuit

I'm very new to electronics and raspberry pi and trying to follow this tutorial. When I check the circuit the resistor is connected between the ground and the LED to limit the amount of current that is passed to the LED. Is it safe to assume the…
user1050619
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Controlling an Electric Ducted Fan via a Raspberry Pi

How could I connect an EDF to a raspberry pi to control importantly On/Off, and if possible the power supplied to it? The information for the specific EDF is Working Voltage: 3s-4s Motor : Brushless Motor 2839 2600kv Maximum Current:…
e__
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PI 3 OrCAD schematics

I am looking for schematics of the raspberry PI 3 suitable for use with OrCAD.
Asher Abitbol
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1 answer

Connecting RPi GPIO into a relay that draw high ampere

So straight to the problem I need to connect My RPi's GPIO to a (or some) relay(s) that consume around 30 - 60 Amps to fire up and RPi GPIO only give around 16 mA/Pin(Accroding to this). My question is,what is the safest and best way to connect the…
Tommy Aria Pradana
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Long male to male jumper wires. What is AWG/Gauge

for a certain project, I need very long male to male wires (~3 meters). I went on amazon, and think that these might do the trick. However, because I am very new to the electronics in general, I got confused with the what exactly the AWG or Gauge,…
nickhir
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Turning It On and Off

I just bought a raspberry pi 3 on eBay that came with all the games. I can't get it to turn on. I have the power source plugged into the wall and the cdmi is in the tv. How do I turn it on? Do I need a keyboard?
Mike
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