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Questions tagged [hardware]

Questions relating to the physical components that the Raspberry Pi consists of.

0
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18 views

P5 code optimisation for raspberry Pi

When I try to execute this sketch that is based on a face recognition algorithm it really lags on raspberry, whereas when run on different devices (macbook pro and notebook), it runs smoothly. You can ...
-1
votes
1answer
38 views

Powering a line following robot with a power bank. Any thoughts?

I am currently wondering for a college project, if it'd be possible or not to use a power bank to build a line following robot and power both the pi 3b+, the waveform motor driver hat with 2 dc motors(...
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0answers
14 views

Reusing old laptop speakers [duplicate]

The speakers are salvaged from an old Toshiba mini nb520 laptop. How could I go forward to use these speakers? Will I have to write my own drivers? Will it be worth the work? What electronic ...
-2
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0answers
15 views

Most reliable way to connect RPi to cellular network indoors?

I've researched various hardware dependencies, notably: GSM/SIM800 configurations I'm trying to determine which direction to go in for a project with the following constraints: predominately indoor ...
1
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2answers
40 views

Testing for hardware faults

I have recently been having a lot of issues with my raspberry pi 3 b+. Many seg faults and weird errors coming with programs like apt and certbot. This is on a fresh install of raspbian lite and I ...
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0answers
23 views

I have been working with a pi 3 b+ and a PWR.A53.B power and driver board

I have been working with a pi 3 b+ and a PWR.A53.B power and driver board . Sadly the switch on the power board was damaged and fell of . I couldn’t put the switch together as I lost the small pieces ....
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0answers
41 views

SPI DMA in Raspbian

Is it possible to access the SPI DMA on a Raspberry Pi running Raspbian without using custom drivers by directly reading and writing to the associated hardware registers? I assume the register ...
0
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1answer
31 views

Small Wifi double switches behind sockets ( Home automation - lights) [closed]

for my first experience with the raspberry pi i'd like to create a map of my house on which i can control the lights. ( Currently there are no extra cables etc to enable domotica in the house). ...
0
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0answers
42 views

Send IP packets between two Arduino or two Raspberry boards

I have two Arduino boards and I want to do a small project with them. I want them the do the following: Firstly, I want to send an IP packet through the network from the first Arduino to the other. ...
3
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2answers
122 views

Recognizing a counterfeit Pi

I'm considering purchasing a Pi 3 at a local store rather than importing it from Adafruit. However, a lot of local retailers are, how can I say, significantly questionable. I've heard that are some ...
0
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0answers
17 views

Analog input together with LoRaWAN

I am looking for a hardware configuration enabling me to read an analog input from ammeter and collect the historical data and send them over LoRa to a server. So I could use something like Monarco ...
0
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2answers
104 views

What tool should I use to cut off the GPIO pins?

I would like the make the Pi Zero W smaller and cut off the part of the PCB that holds the GPIO pins. What tool should I use to do so? Is a Dremel/rotary tool too destructive? I'm thinking an XActo ...
2
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2answers
75 views

Hardware Level Query for Pi Version

Is there a way you can query the model and revision of a Pi from a script without accessing files that are generated at install time for the OS? I have a project where a web page needs to display the ...
0
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2answers
35 views

Get different values from potentiometer even not touching

I have a potentiometer that is used to adjust volume level along with MCP3008 but even if I don't touch it, its values are going and coming as following. Press Ctrl-C to quit... Channel 0 minus 1: ...
0
votes
1answer
28 views

Can i use 5v 3amp. in Raspberry Pi3 B+ [duplicate]

i am using Raspberry Pi3 B+ and i am in a confusion that can i use 5 volt, 3 ampare adaptor in my Pi?
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0answers
36 views

Thermal imaging

I was wondering if anyone knows of a thermal imaging app for either iOS or android, just purchased an p3 b+ and just trying to get a few things clarified befor I start her up, also any info on a ...
0
votes
1answer
137 views

Sniff 433MHz signal from Raspberry Pi 3 B+

I have a remote for my kitchen fan where I can turn on the fan and light. I want to sniff the signal for the light toggle so I can use my Raspberry Pi 3 B+ to send the signal. I bought a 433MHz ...
1
vote
2answers
146 views

Raspberry Pi 3b+ not booting

I got a raspberry pi 3 b+ for Christmas and yesterday whilst installing a Pi Hat's Software (Rasp.io Duino) it just flat out died after showing that there was an under-voltage, even though I was using ...
-6
votes
1answer
35 views

Transistor Count vs Bit Count [closed]

When looking at the history of microprocessors I see that there is not a consistency with the bit count and transistor count of the microprocessors. For instance the first Intel 4004 was a 4 bit chip, ...
1
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2answers
63 views

How to use Solenoid Lock 12V DC

I'm new to this, and I can't see how to control a solenoid lock using raspberry (The wirings). I have an 8x AA Battery pack which is wired to output 12V. I don't know where to connect the black and ...
1
vote
1answer
52 views

GPIO causes random input on room light switch / EMP?

I am building a simple application with a switch on the rasperry pi 3 b+. I have connected GPIO pin 18/32 through a 56k resistor to 3.3v (tried pin 1 and 17) to have it pulled up. The switch closes ...
2
votes
1answer
31 views

Header Pin Configuration on Pi Zero

I need to wire up 3-5 (maybe a few more) Pi Zeros for a monitoring project that will only require I2C so I only need pins 1,3,5,9 or 3,4,5,6. I can go either 3v or 5v. I want to minimize soldering and ...
0
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1answer
126 views

Micro USB cable stuck on Raspberry Pi 3

I managed to get Micro USB cable stuck on Raspberry Pi 3 B+ Wiggling side to side doesn't work. NB! This isn't a troll post.
0
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1answer
24 views

T-Cobbler Plus for Pi Zero W?

I'm looking at getting a T-Cobbler Plus as shown here. For my project I was thinking of using a Raspberry Pi Zero W, and my question is whether the T-Cobbler will work with the Zero W? The description ...
1
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3answers
82 views

Add-on sd card in pi?

I want add-on SD card reader/writer/slot/controller in my raspberry pi so that i can keep OS separate from my program. Primary SD card will load OS and work normally and program & data will remain ...
0
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0answers
90 views

USB Microphone gives error 'Device or Resource Busy'

I've recently purchased this microphone for use with my Pi 3, but I can't seem to get it to work. I run arecord -l and the Pi can see my device: **** List of CAPTURE Hardware Devices **** card 1: ...
2
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0answers
59 views

How to connect CMOS image Sensor to Raspberry Pi

I'm wondering if it would be possible to take an image sensor out of an old camera and plug it in to a raspberry pi via the csi connector. For Example would it be possible to take one like this from ...
3
votes
1answer
420 views

What are the functions of the test pads on the Pi 3B/3B+?

The various models of the Raspberry Pi comprise numerous test pads (testing pins). Many of these pads however are not mentioned or properly labelled in the official reduced schematics the Raspberry Pi ...
1
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0answers
67 views

Storage device interface through MIPI CSI+DSI connections

So I love the Raspberry Pi and currently own and use a model 3b (not plus) for learning more about linux and hardware as well as simple projects like a DNS cache server. Lately I was thinking about ...
0
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1answer
159 views

Elecrow 7" HDMI screen reports No Signal

I'm attempting to get an Elecrow 7" HDMI LCD touchscreen (Amazon UK) to work with my Raspberry Pi 3 B+. Upon following the instructions enclosed with the screen, all I see is "No Signal". The ...
0
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1answer
37 views

Power from Pi 3 to 7" display

Does the 3v3 carried in the FFC cable at the display header of the Pi 3 B+ supply power to the 7" touch display? Or do I need to supply power at J1.1 and .5? If so this power can be pulled from the ...
1
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0answers
76 views

PI NOIR Camera Not Working

I recently bought a Raspberry Pi 3B+ and a Pi Noir Camera and attempted to set them up. I followed the install instructions on the Pi website for the board and camera, and unfortunately received an ...
2
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0answers
33 views

Any issue with magnet too close to rpi?

I don't think this is an issue, but a search turns up nothing and I just want to be sure. I'm working on a project that involves a single speaker mounted approx. 2.5 to 3cm above a Raspberry Pi 3. ...
0
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1answer
103 views

Wiring Omron D6T Thermal Sensor to Raspberry Pi Zero W with Adafruit T-Cobbler Plus

I have a Raspberry Pi Zero W connected to a Adafruit T-Cobbler Plus and breadboard. My question is regarding wiring. I have followed tutorials to create simple circuits, however, I am struggling to ...
0
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2answers
48 views

What is the easist way to connect a switch button to the GPIO pins?

I am trying to up my pi skills on working with hardware. I would like to connect a few buttons to my gpio pins. I have seen various ways to do so and want to know the simplest non-permanant way. I've ...
0
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1answer
129 views

Connecting to mobile network on startup using ppp0

I have a sixfab 4G LTE shield and the module through which I connect my RPi to cellular data. It requires few commands to be executed in order to connect. How do I make it run only once post startup ...
2
votes
1answer
100 views

How do you clean the hardware?

For those people who made the mistake of letting dust settle on the delicate components on the Pi, this is for you. I have had my Raspberry Pi for two years now, and for the majority of that time it ...
1
vote
1answer
215 views

Raspberry Pi Zero hardware based video encoding

I'm trying to build a dashcam with a Raspberry Pi Zero with an official Raspberry Pi Camera (version 2) in an official Raspberry Pi Zero case mounted with a old GPS device cradle. I installed motion ...
0
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1answer
120 views

Kernel panic on shutdown/restart when relay board connected

I have a 3B+ with an added relay board. It's running Rasbian Stretch Lite (Linux blinky-stockholm 4.14.69-v7+ #1141 SMP Mon Sep 10 15:26:29 BST 2018 armv7l GNU/Linux) It seems like, if the relay-...
1
vote
1answer
45 views

Music Sequence, which hardware and software is best? [closed]

This question is supposed to be subjective.. well I need to ask this one way or the other... soooo: As a project I wanted to create my own music sequencer (like a drum machine or synthesiser) from ...
1
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0answers
56 views

Faulty Ethernet interface?

After running apt-upgrade on a Raspberry Pi B+ 512MB to bring it to the current version of Raspbian GNU/Linux 9.4 (stretch) the Ethernet connection stopped working. The interface's behaviour after a ...
0
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1answer
37 views

getting the sound and mic to work from google aiy kit on your own image

I bought and installed the Google AIY sound kit and am trying to get it to work with my own image. i followed their hacking.md file and installed all the hardware drivers but "arecord -l" shows no ...
0
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2answers
58 views

RP3 isn't working after months of not using it

So, I haven't used my RP3 for months because I was busy with other things to do like school and exams. Now when I took out my RP3 and plugged it into a power supply, I noticed the power goes off after ...
4
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0answers
100 views

How does the hardware cause long delays?

I want to write a bit-banging driver for a Raspberry Pi 3. For testing I developed a simple Linux kernel mode driver which toggles a GPIO pin with approx. 1Mhz. Here is the code excerpt. static ...
1
vote
1answer
214 views

luma.core.error.DeviceNotFoundError: SPI device not found

I'm trying to setting up my new Dot Matrix MCU LED Display Module 8x32 with MAX7219 on my Raspberry Pi 3. I followed all the steps here https://max7219.readthedocs.io/en/0.2.3/ and of course using ...
2
votes
1answer
71 views

Everything is dead, but Pi 3B still boots

I left my Pi 3B (V1.2) alone, running a 64-bit build of Debian for a project. Everything was fine. When I returned, however, I found that everything was dead. Nothing was connected to it, by the way. ...
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0answers
63 views

Can raspberry pi cases cause static damage?

This may be a stupid question, I'm not sure. Almost all of the raspberry pi cases are made our of plastic, and this made me think, if I wasn't it put the raspberry pi inside a case, and then put ...
0
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1answer
40 views

Using Raspberry in Nanosatellite [closed]

I want to use raspberry pi in space projects like cubesats. I worry about effects of space radiation on raspberry.Is this possible to do?or i need to choose another board or something like that?
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1answer
70 views

Can we manufacture a product using same board design as Raspberry Pi?

If we program an app on Raspberry Pi, can we duplicate the Raspberry Pi hardware design, manufacture our own boards, and sell them as our product without paying license or royalty for the hardware ...
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0answers
63 views

I took out one wire on my Raspberry, then it stopped working

Simple what the title says. I was working on a small project with my pi, I took out one wire and my pi turned off and didn't wanted to start up again. The circuit looks like this from this tutorial. ...