Questions tagged [hardware]

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

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1answer
32 views

Using a Raspberry Pi to write an image to an SD Card

Hie I have an SD card Module and can access connect two SD cards to my raspberry pi, however i would like to be write an image in the other card connected to the SD Card Module
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1answer
79 views

Setup respeaker pi-hat 2 on RPI ZW

I am trying to run snips on my rpi0w, and has mounted the respeaker pi hat on to it. Installed the driver using git clone https://github.com/respeaker/seeed-voicecard cd seeed-voicecard sudo ./...
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1answer
32 views

Networking interfaces disappeared from my RPI 4B 4GB

Since receiving this Pi I've installed and configured Octoprint for my printer. It ran fine without issues for 3-4 days, until I got disconnected when checking from work. Once home I found the Pi in ...
7
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1answer
10k views

Raspberry Pi Zero W is ARMv6 or ARMv7?

I would like update Node.js to the latest version and I need to choose between ARMv6 and ARMv7. From the package manager point of view this is an ARMv6 processor and dmesg tells it is CPU: ARMv6-...
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2answers
21k views

Using other camera modules to build custom webcams

I have three old iPhones (iPhone 3GS, iPhone 3G and an iPhone 4) that I recovered from family members that were going to throw away. I had the 3GS so out of curiosity I disassembled it and recovered a ...
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0answers
23 views

How to debugg kernel panics?

I have an Raspberry Pi V3 running as a home server for some years. Since a while ago, it doesn't run stable anymore, instead, after it is up for a couple of days sometime after a couple of hours, it ...
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0answers
131 views

Electronics Newbies's Guide to Setup Adafruit PCA9685 16 Channel Servo Driver for Raspberry Pi

As a way into getting myself back into learning more about electronics I'm trying to figure out how not to screw up configuring an Adafruit 16-Channel 12-bit PWM/Servo Driver with my pi. It's been ...
2
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2answers
28 views

Can I power two Pi from a single Lithium battery?

I need to run at least 2 Pi together, one controlling hardware and another sensing its environment. I would like to keep weight down by using a single LiIon battery. I have one to connect to a PiJuice ...
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0answers
22 views

Can I reduce the flicker in 480i composite video output?

Title pretty much says it all. Is there a way to reduce the line flickering of the Raspberry Pi's 480i composite signal when viewed on an interlaced CRT? Specifically regarding the Pi 3B hardware. ...
2
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1answer
50 views

GPIO pullups not working?

Sorry for the very basic question. I am trying to set a built-in pullup on GPIO pins and it doesn't seem to be working. Hardware is Pi 3B and 4B (I tried on both), OS is Raspbian 10 (buster). The ...
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0answers
37 views

Solder USB wifi right on to raspberry pi zero

I am trying to solder a wifi adapter right on to my raspberry pi zero so it takes up less space. I've followed this video and some other diagrams on how to wire usb devices right on to the pi zero. ...
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1answer
104 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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1answer
39 views

Copy of SD in second Pi - system work but several services do not start

I have 2 Raspberry Pi 2B On 1st I run Openhab, mysql, Mosquitto and Apache2 This is my home automation server. Now I want to make copy of system and use it on 2nd Pi to test some changes. I copy SD ...
3
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2answers
246 views

Remote controlling the PI

My father is a farmer, and he has a ball wrapper such as this one: http://www.hardwickagricultural.co.uk/controlpanel/shoppics/IMG_1266.JPG. For now, we can work quickly with it only if we are at ...
2
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2answers
208 views

Raspberry Pi Zero W solar power setup

Good day, I have a Raspberry Pi Zero W that I would like to deploy onto a tower that is supplied with 12VDC power from a photovoltaic solar panel. I'm currently looking at powering the Pi Zero W ...
3
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5answers
935 views

How to monitor if a remote Rpi freezes and reboots it, using a watchdog timer or otherwise

I'm building a system with a raspberry pi located in a very remote area connected to internet with an internet stick. The tests are promising so far but the pi freezes every here and then and I'm not ...
1
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1answer
67 views

Record 5.1 Surround Sound

I want to record audio for 5.1 Surround sound. My goal is to use 5 diy shotgun microphones with electret microphones being connected to a rpi that records and encodes to something like ac3 or at least ...
1
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2answers
82 views

High frequency hiss when running on Pi2

I have a Raspberry Pi 2 running Open Source Media Center (aka OSMC), and when it runs, I hear a very high frequency hissing noise coming from the Pi. In my family, I am the only one able to hear this ...
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2answers
68 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 ...
64
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7answers
50k views

How do I control the system LEDs using my software?

There are 5 LEDs on the RPi: OK, PWR, FDX, LNK, 10M. I'd like to know if it's possible to control any of these from software i.e. turn them on, or change intensity (or even change colour gasp). And ...
16
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3answers
2k views

How can I identify from command line which board revision I have?

I just ran cat /proc/cpuinfo on my board. I get "Revision : 1000002". I've failed to find any mention of which version of the board this is. Any help?
4
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2answers
224 views

Rpi4B power connector SMD components damaged. How to replace it?

I broke what looks to be either a diode, capacitor or resistor on the board near the power connector of the pi 4B and I want to try to replace the surface mounted component. I know the chances are ...
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4answers
339 views

How to remotely turn off the cooling fan of an already software shut down Rpi?

I just bought a case with fa , as pi 4 is not working great without it. Now temperature is low, but as I have it in my room, I would like to turn it off while sleeping. My fan is: https://www.amazon....
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2answers
134 views

Toilet training kit

I am about to begin potty training multiple little boys. I thought of an idea and was hoping somebody knew what kind of hardware I could use... Ideally there will be a button the size of a sticker in ...
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1answer
228 views

How to use the DMA-DREQ/PANIC threshold of the hardware-PWM

I'm using the hardware PWM that is described on page 138 of the BCM2835-ARM-Peripherals document. The description of the DMAC-register (page 145) indicates that one can set the FIFO-threshold at ...
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1answer
186 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 ...
1
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1answer
564 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
77 views

Rpi B USB Not Working

I have an early pi B 256 MB RAM on which the USB & maybe the ethernet sockets are dead, as I can't get access I'm not sure. When I power up the OS seems OK (Raspbian & OSMC). The wired mouse &...
1
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1answer
98 views

edac-utils on Debian 8 - Jessie

I have Jessie installed on my Raspbery-Pi Zero W system. edac-utils were installed successfully using "apt-get install edac-utils", but I cannot use them somehow, do I need to manually set edac ...
3
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1answer
62 views

Does directly connecting pins fry the Pi?

As a followup to this question: Can I safely connect two GPIO pins to each other (ie. for testing purposes)? And can I safely connect an input pin to either +VDD (3.3 V) or to Ground? Or do I need a ...
2
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1answer
111 views

Vibration-induced power loss problem

I am a pilot using a Pi 3 as an ADS-B receiver for a gyroplane. It works really well provided I don't try to have the Pi mounted to the aircraft anywhere. As soon as I do, the vibration seems to cause ...
2
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1answer
90 views

Raspberry Compute Model 3, is hardware opensource and approach to integrating HD camera on board?

Im planning to build a home security video surveillance to record video and stream it. This is a personal project but I want to approach it with a production ready mindset, as a challenge for myself. ...
48
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5answers
107k views

What is the maximum / minimum operational temperature?

As per the title, what are the maximum and minimum operational temperature ratings of the Pi before it stops reliably working? Could this also depend on the SD card in use?
23
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8answers
25k views

What are the possible OUIs for the Ethernet MAC address

I'm setting up a computer lab in which many Raspberry Pis are going to acquire IP addresses via DHCP. I'd like to have the DHCP server to differentiate between Raspberry Pis and other clients. What ...
0
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0answers
26 views

Could my Pi have damaged my display?

I am using this display with my Pis. Thanks to a tutorial they put some time ago, I have been able to control the brightness on the screen. Recently, I was testing some nodes on the Pi using a ...
0
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1answer
50 views

Not allowed to use internet in France?

According to the Declaration of Conformity, only indoor use is permitted. Is this just regarding the WiFi, or the whole Pi? What's the reasoning behind this?
1
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1answer
376 views

What are the vcgencmd measure_clock 26 and 50?

There are 2 clock sources that are not officially (?) listed with a string id available to the vcgencmd measure_clock command. # for i in {0..255}; do vcgencmd measure_clock $i; done | grep -v "=0" ...
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1answer
30 views

LoRaWAN connection between three Raspberry Pi 3s

Are LoRaWAN devices able to transmit compressed/zipped JSON files which are 5-10 Kb big? Furthermore I've been reading up the LoRaWAN technology to get a better understanding. I would like to have 3 ...
0
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1answer
230 views

How to send and receive data between RPi and PIC33E microcontroller via USB?.

This is my first project with PIC33E, and both the devices will be connected by USB only. Rpi will have a User Interface (written in Python) and which will enable the user to send and receive data. ...
10
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7answers
38k views

Detect if iphone/Android nearby?

I'm working remotely and it would be handy to know when someone has gone out for a meeting / lunch in my office. I thought I might be able to passively detect what phones near the raspberry pi (and ...
1
vote
1answer
40 views

ADF support for scanadf on HP scanner

I have installed SANE and I'm trying to scan pages with the ADF (automatic document feeder) of my HP ScanJet 8250. I found scanadf, but it does not use the ADF for scanning. I now read at the end of ...
0
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1answer
240 views

Change default (as in nothing plugged in) screen resolution

I will probably be using my Raspberry Pi (running Ubuntu Mate) for remote desktop, but not all of the time. Sometimes I will want to plug it into a monitor. When it's not plugged into a monitor, I'd ...
2
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1answer
226 views

RaspberryPi.Net Libary LCD Display

So my problem is, that we want to control a LCD (HD44780) Display with our Raspberry Pi Model B V1.1. The Libary seems to have a support for it. But there only seems to be one example in the whole web....
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0answers
36 views

Is it still safe to use my pi? Missing component (capacitor?) near USB port

I dropped my pi and what I think is a capacitor has come off. What effect will this have on the USB ports, if any? Can I get away with just not using them?
-1
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1answer
90 views

Immutable SD Card? [closed]

Does there exist a device that goes in an SD card slot and behaves like a normal SD card, except that it can be made immutable? I think it would have to have two modes: Initial Setup would be ...
2
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3answers
79 views

Is there a piece of hardware I can use to turn an outlet on and off via a wired connection?

I'm new to Raspberry Pis. I'm not new to programming, but I know very little about electronics. For a first project I would love to make an outlet switch thing that is connect to an rpi that's connect ...
2
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2answers
545 views

Could a RPI 3B+ running Android Things support touch-display and display module with different views?

We are currently working on a project with a Raspberry Pi 3 B that will run Android Things NIH40K, 0.4.1-devpreview, Jun 15, 2017. As it runs AT I would like to connect two separate displays, one ...
0
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1answer
247 views

Problems booting rpi 3 from USB disk drive

I recently purchased a Seagate 1 terabyte Passport disk drive to move up from SD cards. I copyed the Raspbian image to the drive using the SD card copier tool it came with. Then I set up USB boot mode ...
0
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1answer
8k views

Why is my USB device not fitting into the port

I have a new Raspberry pi 3 model B and I tried to insert my flash disk so I'll have some extra memory space, and I figured out that it does not fit into the USB port. I have tried inserting other ...
2
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0answers
70 views

Hardware controlled RTS on a Pi4 not working accurately

We need to use RS485 to talk to one of our custom tools. We need to use hardware controlled rts/cts. I've read so many articles about this but nobody ever says it works for them with fast timing and ...