Questions relating to the physical components that the Raspberry Pi consists of.
0
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8 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
10 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
votes
1answer
22 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
19 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
34 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
32 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
22 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
13 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 ...
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2answers
52 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
70 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 ...
0
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0answers
33 views
max7219 examples doesn't work
I'm following this link https://max7219.readthedocs.io/en/0.2.3/ to setup my MAX7219 8 x 32 rot Serial Dot Matrix Display Modul LED into my raspberry pi3.
I followed the setup and with pip list | ...
1
vote
1answer
59 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
51 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
49 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
36 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?
-4
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1answer
55 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
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1answer
157 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
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1answer
414 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
votes
0answers
32 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
71 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
51 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 ...
1
vote
0answers
107 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
102 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
20 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.
0
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0answers
39 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
33 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 ...
1
vote
0answers
34 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
41 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
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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
68 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"
...
0
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0answers
105 views
How could I write a C function using the wiringPi SPI library to read the X and Y measurements from this 2-axis inclinometer?
How would one use the wiringPi SPI library (http://wiringpi.com/reference/spi-library/) to get the x and y readings from this SCA100T inclinometer?
I understand that the function wiringPiSPIDataRW() ...
0
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0answers
37 views
ADC Hat with 8 differential channels and 24 bit resolution for 100 - 200 SPS (Hz)
I'm sorry if there's a similar post, I could not find it (them).
As the title implies, I'm looking for an ADC hat for the Rapspberry Pi 3 Model B with 8 differential channels to sample up to 200 SPS (...
4
votes
1answer
1k 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-...
1
vote
1answer
236 views
Why is my pi camera v2.1 detected but not taking pictures?
Thanks for your help. Yesterday I moved my Raspberry Pi cam v2.1 with the rpi robot chassis and the camera won’t take pictures. But, the day before, the camera functioned properly. Why do you think ...
2
votes
0answers
70 views
Raspberry Pi remap DPI pins [closed]
I'm trying to hook up my Raspberry Pi a to custom display hat via the parallel display interface (GPIO Pins, not ribbon cable). The problem I'm facing is that the DPI pins are rather awkwardly placed ...
1
vote
1answer
92 views
Will accidentally powering a pi with more than 5V break it?
I have a variable power source(5V, 6V, 9V, 12V, etc...) with a usb plug which I had powering my pi 3B a few months ago, but one day (a few months ago) I accidently had the power source set on 6V(it ...
1
vote
1answer
184 views
Raspberry Pi 3 Model B- 3M Touch Systems
I connected yesterday a Raspberry Pi 3 Model B at a 3M touch Systems touchscreen. For installing I followed this tutorial that I found here: Inverted GPIO Touchscreen (Using 99-calibration.conf)
What ...
1
vote
1answer
45 views
Trying to drive monitor backlight with gpio
Project: I am making a Pi powered photo frame with google photos integration.
Object: I have added a pir sensor for auto screen off when no activity is detected and now i am looking to control ...
0
votes
0answers
56 views
Is it possible to hook Google AIY Voice and Visual Kit on same Raspberrypi?
I am pretty new to raspberry-pi world. I want to do a project which makes use of both voice and visual kit. I couldn't find any online posts which tell how to assemble both kits on a single pi (...
0
votes
0answers
87 views
Raspberry pi not booting nor screen showing any colors
So I just took off my raspberry pi and clean it with wet tower and dry it completely off. When i then boot into it, it was completely normal then I started to notice that the green light is not ...
0
votes
1answer
164 views
unable to install e-paper display, module epd2in7 not found
I bought a 2.7inch e-Paper HAT,
I install everything but when I try to run a code I have
Traceback (most recent call last):
File "demo2.py", line 1, in <module>
import epd2in7
...
0
votes
1answer
182 views
Can Pi Zeros be used in a cluster like Pi 3s?
I am planning to run a cluster of Raspberry Pi Zeros. I know we can do it with a cluster of Pi 3 boards but I want to know is the same possible with Pi Zero?
-3
votes
1answer
2k views
Where do I plug in a 5V mini fan on a Raspberry Pi?
I have a Raspberry Pi 3 Model B+. I am currently installing the Pi into a Super Tinytendo case, which came with a built-in mini fan. However, I'm not sure which set of pins I should plug the fan into.
...
0
votes
4answers
2k views
What cooling is the most effective for the RPi 3B+?
I've been doing some research with the new RPi 3B+, but have been struggling to find much information about effective cooling for overclocking. I have seen some solutions such as
Heatsinks (small ...
4
votes
3answers
192 views
Unformatable SD-cards; goto trash?
Some time ago I installed Raspbian and Kali on two microSD-cards. It was also some time ago when I tried to format them - without success. I put them aside. Yesterday I thought I try again. I used a ...
7
votes
3answers
2k views
What components would I need for my Pi to safely detect a 12V automotive circuit on GPIO?
I'm rather new to logic circuits and I'm trying to figure out which component I need to complete my project.
I'm attempting to make a backup/reverse camera. When I shift into reverse, 12V is sent to ...
0
votes
1answer
49 views
Using Raspberry pi as I/O Board over the Network [closed]
I was trying to set up Jasper on my Raspberry Pi. While the programm was running fine I wasn't quite pleased with the performance.
So i was thinking to run Jasper on a more powerfull machine and the ...
3
votes
1answer
326 views
Camera gets hot, how much power should it dissipate?
I planned to add the chinese NoIR RPi camera in a birdhouse. First tests revealed, that the camera module heated up to 65 ⁰C. The IR LED's were very warm too.
How much power is dissipated by the ...
0
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0answers
20 views
Why as of the 4.9 kernel, all Pis report BCM2835?
Here (Link) :
Note: As of the 4.9 kernel, all Pis report BCM2835, even those with BCM2836 and BCM2837 processors. You should not use this string to detect the processor.
So why "Hardware:" string ...
