Questions tagged [hardware]
Questions relating to the physical components that the Raspberry Pi consists of.
3
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1answer
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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 ...
0
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43 views
How to Make Router(AP) with raspberry pi
I am trying to make AP(Router) with raspberry pi.
Using your new Raspberry Pi 3 as a WiFi access point with hostapd
At this command I am getting certain error !!
entepi@raspberrypi:~ $ sudo /usr/...
0
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0answers
21 views
Raspberry pi tor router
I am trying to make tor router from last 3 days. I have tried everything..
Too much errors and services are not working ?
I have android phone so i am going to provide Internet via android.
I don't ...
0
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0answers
16 views
Python - Microphone recognition problem
I'm recording sound perfectly via arecord command. I use MEMS microphone with i2s interface and works well. But also I installed soundmeter program from https://pypi.org/project/soundmeter/, and it ...
1
vote
0answers
22 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
36 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
votes
1answer
30 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
vote
0answers
52 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
21 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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0answers
17 views
2-way communication with Raspberry Pi and Laptop/Phone on WebRTC with UV4L
I am trying to run UV4L on my Raspberry Pi to establish a two-way communication via WebRTC.
I have been able to stream the video from the Pi Camera and Audio from my laptop to the rpi's speakers but ...
0
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0answers
18 views
Building an electronic lock box connected to a Raspberry-Pi+keyboard,
I've been kicking around an xmas idea for my young nieces and nephews. I'd like to connect a small, electronically controlled lock box to a raspberry-pi + small display device + keyboard configuration....
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29 views
Raspberry Pi 2 model B BCM 2835 [duplicate]
I have a Raspberry Pi 2 model B, so I am suppose to have a BCM2836 processor. But, when I check it in /proc/cpuinfo the result is not BCM2836 but BCM2835.
What is it wrong? What processor do I have?
...
0
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0answers
25 views
how to solder a UFL antenna for RPI3B+
I understand that soldering a UFL antenna is doable in RPI3B. So far i Have not seen any work done similarly to RPI3B+. The location to solder the UFL socket seems to be moved to the top left just ...
0
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0answers
30 views
Wifi nor Bluetooth interface not found
Today i after long time falshed new retropie os and after some finding found out wifi and bluetooth is showing as not found i tried 3 fresh installs of retropie and now i tried raspbian desktop still ...
0
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1answer
38 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
39 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
votes
1answer
38 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
91 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 ...
0
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0answers
50 views
Realtime H264 encoding on the RPI3B+
I want to stream live video captured via my Raspberri Pi 3B+.
I was thinking of capturing video from the RPi's camera module (apparently the video captured by the camera module is already encoded in ...
1
vote
0answers
65 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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0answers
14 views
Are STM32 Nucleo expansions compatibles with Raspberry Pi?
I am a beginner both in the world of Raspberry Pi and STM32.
I do however have a USI STM32 Nucleo expansion, which is meant to be connected to a STM32 board to provide it with the ability to ...
0
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0answers
15 views
Receive data in Raspberry Pi 3 from Windows Embedded PC
I want to know what would be the best way to connect the Raspberry Pi 3, without using Ethernet, Wi-Fi, Bluetooth or RS-232, to receive data from a program in the PC. Can I do a USB to USB connection, ...
0
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1answer
55 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-...
0
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0answers
26 views
read from sd card using lpc2378 using spi
How to read from sd card using lpc2378 using spi? I am looking for specific registers which have to be configured ? There is no separate topic for arm since rpi is based on arm microcontroller I am ...
1
vote
1answer
37 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 ...
0
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0answers
52 views
Support for touch display on raspberry pi 3B+
I have an Innolux 5-inch LCD touch display that I got with android things starter kit(NXP Pico i.MX7D)
The board is not functional anymore but I was wondering if I could use the display unit with a ...
1
vote
0answers
27 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
votes
1answer
16 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
54 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
votes
0answers
86 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
124 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
57 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.
...
0
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0answers
54 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
38 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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votes
1answer
57 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
61 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.
...
1
vote
2answers
306 views
Cannot Detect LIDAR Lite v3 Raspberry Pi 3B+
I am trying to connect my Garmin LIDAR Lite v3 sensor to my Raspberry Pi 3B+ via i2c interface. However i2cdetect on the command line returns dashes for every address.
I'll try my best to clearly ...
0
votes
1answer
697 views
Toggle state to trigger a function with a button in Python - loops on and off and need help [closed]
I’m trying to use a button, in this case an Amazon Dash Button, to trigger two functions - i.e. push once it activates one function, push again activates another.
I have tried setting a state to the ...
0
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0answers
48 views
Running the Waveshare DAC with Python
I've been working on setting up and using the Waveshare High Precision AD/DA. I have it set up but I can't seem to figure out how to use it with Python as it seems to be rather poorly documented. (It ...
2
votes
2answers
90 views
Raspberry pi for extreme outside using
I want to use raspberry pi for a vehicle park project. The Raspberry will stay in a metal box and it will never power off. The metal box is waterproof but its in middle of a empty area so it will get ...
1
vote
1answer
64 views
Temperature variations affect NTP server accuracy
I have a ‘fun’ problem I’m trying to sort out. Bear with me!
I’ve been running a Raspberry Pi 1 B+ for a year or so as an NTPsec Stratum one timeserver - using the GPS Hat (Here’s how you can make ...
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vote
0answers
188 views
Connecting Pi to an OPC server
I want to connect a Pi to an OPC-DA server to acquire data over an Ethernet connection. Does the Pi's Ethernet port function for non-internet uses?
Extra twist... if I want to connect to both the OPC ...
0
votes
2answers
244 views
Rpi Zero W ( not Rpi 2,3 ) - power consumption, idle and GPIO operate [duplicate]
Spec wise - all raspberries require 5v 2A input.
My project needs multiple remote rpi’s to send periodical status of GPIO using python script ( runs on Raspbian Strech Lite ).
Is a 2A a must ?
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0answers
22 views
How do I start a rollei 5S wifi and a Gopro Hero 4 at the same time using a rpi for them to be genlocked?
Rollei 5S WIFI: https://www.rollei.de/blog/wlan-einrichten-rollei-5s-wifi/
GoPro Hero 4: https://gopro.com/update/hero4
Both accept wifi connections and both have remote controls that don't use wifi.
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47 views
USB Audio Input and onboard Audio output
I am working on a project for my RPI and I have a question that I would like to know the answer too before I start dropping money on all the different parts. For some LED strips, specifically the ...
0
votes
1answer
34 views
Connecting pins from multiple pi's
I have read here (and many other places) that connecting pins 5 and 6 will wake a Pi from sleep/standby. I have a few pi's that will be shutting down remotely at the same time. I would like to connect ...
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vote
0answers
40 views
Toshiba TOSVERT VF-S15 VFD and USB001Z
I'm currently trying to drive an AC Motor using the TOSHIBA TOSVERT VF-S15 Inverter and the USB-to-serial communication unit USB001Z.
The problem is that the rpi recognized the USB001Z but it seems ...
1
vote
0answers
54 views
Hardware setup for LED with external power supply
I am looking for help to use a raspberry pi 3 as a multiple LED switcher.
The setup should be:
6 LEDs at 3W, 9.6V and 300mA (each!)
a external power supply for the LEDs
a breadboard to put everything ...
0
votes
0answers
22 views
USB Audio Adapter Redirect
I currently have a setup on my RPI using a USB adapter which has an Audio Input and an Audio Output. Currently I am using the Audio Input information to control GPIO pins on the RPI. I am taking in ...
1
vote
1answer
101 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"
...
