Questions relating to the physical components that the Raspberry Pi consists of.
-1
votes
0answers
14 views
Using barcodescanner to trigger digital timer
I'm looking for a way to use a barcodescanner to trigger a digital timer. The context is a workshop, where there are certain tools that can be safely used for only 4 hours. These tools will be ...
0
votes
0answers
42 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
votes
1answer
33 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
votes
1answer
53 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 ...
0
votes
0answers
59 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.
...
0
votes
1answer
72 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
176 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
23 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
65 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
43 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
31 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
42 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 ?
0
votes
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
votes
0answers
35 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
31 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
25 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
31 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
19 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
34 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
votes
0answers
47 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
votes
0answers
30 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
560 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
94 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
58 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
77 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
0answers
132 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
37 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
45 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
86 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
110 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
108 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
977 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
1k 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
170 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
47 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
226 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
votes
0answers
19 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 ...
1
vote
1answer
82 views
What happens if throttling back doesn't help on high temperature? Does Raspberry Pi power off?
I recently asked this question asking if the temperature was handled by hardware or software and someone told me that it was handled by raspberry pi firmware (hardware). Appearently performance is ...
0
votes
1answer
398 views
Hardware PWM for Python 3.5 or higher?
I am developing a camera tracker to follow objects identified via OpenCV in a dedicated environment on mt Pi3. Currently the two SG90 servos are controlled by software PWM using RPi.GPIO - but the ...
0
votes
1answer
91 views
False-positive button press on power interference
I'm having a rather funny issue with GPIO & tactile switch.
The issue is as I understand purely electric.
My RPi is connected to a cheap usb "Extreme Style 5V 3.1A" PSU.
Same power outlet is ...
0
votes
0answers
24 views
Raspberry pi hard drive powering but not showing [duplicate]
So I finally got my sata hard drive to power Directly from the raspberry pi 3 USB ports. But now when I plug it in and it powers on once I get on to the raspberry pi 3 it does not recognize or even ...
1
vote
0answers
24 views
Does the Pi GPU active state turn on all the QPUs, even if all are not being used? [closed]
I have a USB power meter bridging the power supply and my Pi's power adapter. I wanted to measure the power consumption for Pi's GPU when it is handling various processes. Using QPULib, a library that ...
0
votes
1answer
27 views
digital pot motor control
I a using a MOT-B24400 motor which has a built in controller and only needs an external 5k pot to control the speed, plus power of course. I have this wired to a relay with a button to send a signal ...
0
votes
1answer
146 views
LIRC won't recognise IR commands
I want to control my RaspberryPi B+ 1.2 using a remote control. I did the steps according to several tutorials but I can't get mode2 -d /dev/lirc0 to output any pulses.
/boot/config.txt
[pi1]
kernel=...
0
votes
0answers
44 views
Program inexplicably terminates upon calling open()
I have code that is attempting to open /dev/mem for mapping a peripheral register for manual usage. Specifically, I am attempting to access the UART registers directly. I have a function called ...
0
votes
1answer
38 views
Difference between 2 sd cards [closed]
What is the difference between this card Sandisk extreme 32 go and this Sandisk extreme 32 go. Just FFP write in the first, what is FFP ?
0
votes
1answer
244 views
Does the Sandisk Extreme SD card work with the Pi, and can I add air cooling?
I want to buy a Raspberry Pi 3 Model B in a week, and I want to see if this SD card, a Sandisk Extreme 32 GB is good for the Pi? Also, I want to know if I can add an air cooling without heatsink?
0
votes
2answers
260 views
Does the Logitech MK235 work with a Raspberry Pi 3?
Next week, I am going to buy a Raspberry Pi 3 and I want to buy a mouse and a keyboard with the Pi.
Can anybody please tell me if the Logitech MK235 works with the Raspberry Pi?
1
vote
1answer
43 views
Manufacturing Custom Raspberry Pi ProtoType [closed]
I'm looking for some general suggestions as to where I could go to get a custom Raspberry Pi / Beagle Bone Black or similar hardware created but with customizations. Basically I'm looking for a device ...
