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Questions tagged [pi-3]

For questions that apply specifically to the Raspberry Pi 3 and not other/all models.

1
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1answer
27 views

Lipo Battery Voltage Drop When Pi 3B and LCD Screen Are Both Connected to Powerboost 1000

I have a Raspberry Pi 3B and LCD Controller Board connected to a Powerboost 1000 Basic. A Lipo Battery Charger is connected to the Powerboost as well. I noticed if I remove the LCD Controller board ...
0
votes
0answers
37 views

Configure Rasp 3 b+ for automatic configuration file (pac)

I need to configure my rasp 3 B+ so that I can connect to my corporate network. In my Mac, I go to settings, network , advanced, Proxies and then Automatic proxy configuration and enter the proxy ...
1
vote
1answer
29 views

No Wifi connection when HAT installed

When using a Hat for the Raspberry (MotoPi from Joy-It) the onboard wifi doesn't connect to my home wifi. But when removing the hat it just works fine. The strange thing is, that I've used the same ...
0
votes
3answers
66 views

Why can't I boot Raspberry Pi 3 Model B from 500 GiB USB HDD?

I am trying to boot my rapsberry pi 3 model B from an external HDD. I have written an Arch Linux ARM image to both my 16 GiB thumbdrive and 500 GiB HDD. I can boot from that thumbdrive, but the HDD ...
1
vote
0answers
48 views

l2ping bluetooth not timing out fast enough

I have been experimenting with pinging a list of known Bluetooth MAC addresses for a tracking project with a Pi 3, however, the ping does not seem to time out until after 5-7 seconds if there is no ...
0
votes
0answers
74 views

Configuratión mcp 3208 en raspberry pi 3 with spi

I have a problem in the configuration of the A / D converter I am working with the Pi 3B +, in case the problem is that I do not know if the configuration is ok, since it only throws a zero value ...
0
votes
1answer
35 views

Generating signals with Pi

I have a vector of 500 numbers and would like to output these at a sample rate of 1kHz, thus a signal time of 0.5seconds. Is there any way to do this using a Pi? Do the GPIO pins only allow for an On/...
0
votes
0answers
36 views

piscope SPI pin activity even though the SPI device is not connected

my final goal is to use python (spidev) to communicate with a BMS chip. Until now I was quite unsuccessful, thats why I wanted to use piscope to track the activity of the SPI pins. The device is not ...
0
votes
0answers
27 views

DS18B20 & Pi 3+

I'm not getting a w1_slave, and all I'm getting is 00-xx0000 when the DS18B20 isn't burning my fingertip. I went for green for ground, which is on the top right plug from this perspective. I spliced ...
0
votes
0answers
22 views

communicate agilent E3640a with raspberry pi 3 using gpib_usb_hs

i have to communicate agilent E3640a with raspberry pi 3 using gpib_usb_hs what is the solution to install driver gpib in raspberry to communicate to agilent e3640a
0
votes
0answers
13 views

ReSpeaker 2Mic Expansion Board Not Showing Up Under “aplay -l”

I am very new to the raspberry pi. I am setting up the Respeaker 2Mic Expansion board on my Raspberry Pi 3 B+. I have downloaded the files from GitHub through the terminal, have physically connected ...
1
vote
0answers
48 views

Raspberry Pi 3 B+ LED Light Blink not working

I am trying to get my LED to blink once, but it is not working. I connected the brown wire to pin 6 (Ground), and the red to pin 7 (GPIO 4). I watched a tutorial on connecting the circuit but it is ...
2
votes
0answers
50 views

Android things keeps restarting

Trying to install Android Things OS on RPi3 B V1.2, but before I can -- or shortly after -- I get to the set-up screen, the OS reboots. This happens repeatedly. Rasperian works great under CPU and ...
0
votes
0answers
42 views

How can I use the free version of Qt to create a GUI for the Raspberry Pi?

I am working on a project that requires high-medium quality GUI. I am thinking of cross compiling from Windows to Raspberry Pi or from Ubuntu to Raspberry Pi. Also, I do not know which one of those ...
0
votes
0answers
39 views

GPIO number vs Pin number. Which to use?

I am writing a code for an ultrasonic distance sensor. The code worked fine when i used the gpio numbering system for the wires connecting to the gpios and sensor. As soon as i connected the sensor to ...
-1
votes
3answers
83 views

runing command on startup

I need to execute this command on the RASPBERRY PI bootup cd RPi_Cam_Web_Interface && ./install.sh and also follows dual ENTER keys with 5 seconds interval for each.
0
votes
0answers
22 views

How to track steps of multiple stepper motors with different frequencies

I’m working on a small stepper motor driven vehicle powered by a Raspberry Pi 3B. For the motor control, I am using the hardPWM function of the pigpio library from Joan, which is working great. I can ...
0
votes
1answer
201 views

Raspberry Pi Won't Boot (Only Red LED On)

I have a Raspberry Pi 3B+. For several months it worked perfectly fine, but one day it just stopped booting and only getting to the red LED. I've tried buying a new microSD but the same behavior keeps ...
0
votes
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. ...
0
votes
0answers
37 views

Raspberry Pi Camera to load face recognition trained model located in desktop

I'm setting up a security application to have real-time face recognition on Rasp Pi Camera. The face dataset are gathered using laptop and the trained model are also located in laptop directory. Is ...
0
votes
1answer
41 views

How do I increase the RPi 3 minimum clock speed without using force_turbo?

So I don't want to change my max clock speed, but I want to slightly increase the minimum clock speed at light load from 600MHz to 800MHz. However, if I set these options in my /boot/config.txt/ and ...
0
votes
0answers
114 views

ffmpeg - Video Audio Capture with Compression

I am running ffmpeg script that captures webcam video and microphone audio and then uses video compression before saving the audio/video mp4 file. The script works on my desktop but cause error on my ...
0
votes
0answers
62 views

Can't set PS3 Eye USB camera as default sound device in alsamixer

When I try to change default sound card in alsamixer to USB PS3 Eye camera (which is detected as USB Camera-B4.04.27.1), I'm getting following error: cannot load mixer controls: Invalid argument I ...
0
votes
1answer
65 views

What is the max voltage that the Raspberry Pi can handle over the USB plug? [duplicate]

I've been trying to make my own lower-cost power supply for the Raspberry Pi (my cellphone wall adapters don't provide clean enough 5V power for the Pi 3B+) with a 12V wall wart I have laying around ...
0
votes
0answers
36 views

How to stream audio/video from Raspberry Pi to Windows PC

I have a Raspberry Pi 3b that I am using as a radio server with a rtl-sdr (Realtec Software Defined Radio). I would like to have any audio coming from the Raspberry Pi to be streamed to my windows 10 ...
0
votes
0answers
29 views

Getting firefox to stop crashing[parrotsec rpi3b+]

I have the rpi3b+ and i can get it to boot to desktop but getting firefox to load an not crash is a chore having firefox uo an running woluld make running the system easier so i could trouble shoot ...
0
votes
2answers
123 views

WEP WiFi Hotspot

So I want to use my DS online again, and what I need to do is get a router with WEP seurity, or a router without security. So I decided to use my Pi 3 B as a WiFi hotspot. But all the stuff I find is ...
0
votes
1answer
117 views

Multithreading Python Raspberry Pi 3 B+

My Raspberry Pi 3 b+ is reading by Modbus the values of an irradiation sensor, processing all the data, showing it in a plot and showing some warnings (if the irradiation ramp is higher than 5%). I ...
2
votes
1answer
318 views

Installing XFCE4 on raspberry Pi

I want to try out XFCE4 on the raspberry pi. This is mainly because of two reasons: ► I just like XFCE ► I want a bit more flexibility when it comes to GUI scaling - I have a 240x320 LCD and need to ...
0
votes
1answer
44 views

I2C Level Shifter 3,3V Raspi 5V Arduino Mega

I am connecting Raspi (Master) via I2C with Arduino Mega (Slave). Do I need a level shifter for this or is it non compulsory? As of now my code runs for some time before i get a Remote I/O Error ...
0
votes
0answers
54 views

Fragile code on rasp pi running IOT

I'm using a Pi 3 with Android Things to operate some relays that control valves on an irrigation system. The system uses the internet to get a weather forecast to work how much water to use, and uses ...
0
votes
0answers
16 views

How to configure keysettings for each game individually for picade?

I have the picade from pimoroni and use it for example with the C64 emulator. Within the picade there is the special Picade PCB board which does the keymapping that should be reprogrammable. My ...
0
votes
1answer
40 views

SenseHat joystick loop consumes 100% cpu load

After messing around with the SenseHAT for the Raspberry Pi (a Model 3B in my case) and testing the LEDs and sensors, I wanted to try out the included joystick as well. Naively going after the "...
0
votes
0answers
43 views

Resilio Sync vanishes without notice

I have a raspberry pi 3 here with the latest (for today ;-) raspbian on it. Also the latest version of resilio sync 2.6.3. I have installed it so that it will automatically start at boot etc. When ...
1
vote
1answer
150 views

Runtime Warning: This channel is already in use

I am writing a code for Ultrasonic distance sensor. I have wired all the things perfectly and written the code for it but somehow it gives a runtime error of the channel already being in use. Below is ...
1
vote
1answer
46 views

Libboost package installion error on Raspberry pi 3b+

Command: sudo apt-get install libboost1.50-all-dev Result: Error: Could not find any package by globe and regex libboost1.50-all-dev Error: Unable to locate package libboost1.50-all-dev
2
votes
0answers
81 views

How can I install the latest kernel from kernel.org to Arch Linux ARM for Raspberry Pi 3 model B?

I am using Arch Linux on Raspberry Pi 3 model B. I want to install a newer kernel (currently I have 4.14.94-1-ARCH kernel installed) I have downloaded and compiled the mainline kernel 5.0-rc5, which ...
1
vote
0answers
51 views

Voice recognition and processing using a wireless microphone and a wireless speaker on RPi 3 B+ [closed]

I have installed Google Assistant on my Raspberry Pi 3 B+ and it seems to be working fine. My setup is: The voice input is through a USB microphone. The output is through the 3.5mm jack (I use a ...
-1
votes
1answer
36 views

Raspberry PI Portable USB Charger [duplicate]

I bought a $5 usb charger that I am using to power my Raspberry Pi. The charger works decently but I am noticing that every once in while the raspberry pi will reboot. I have read that some chargers ...
0
votes
0answers
45 views

GPIO Open drain and open source setting while using the pin as input

I found this document. It says: Open Drain and Open Source Sometimes shared signals need to use "open drain" (where only the low signal level is actually driven), or "open source" (where ...
0
votes
1answer
37 views

Static IP address not working on Raspberry Pi with DHCPCD

I created a static IP address for eth0 to use with a USB dongle (connected to my PC) in dhcpcd.conf file. interface eth0 static ip_address=169.254.2.13/16 static routers=169.254.11.25 Is there ...
0
votes
0answers
70 views

Raspberry Pi 3 Linphone Calling

So I am working on a project where I have to be able to make sip calls to a raspberry pi 3 and have it automatically answer any incoming calls. I have been reading this guide: https://wiki.linphone....
0
votes
1answer
44 views

Is a Raspberry Pi 3 B+ “usable” enough for our coding/development, entertainment, gaming needs?

I'm planning on buying 2 units. One for myself for the purposes of learning web development, and one for my sister for entertainment purposes. I know that the latest iteration of the device will ...
0
votes
0answers
53 views

How to control the raspberry pi over internet using android app?

I had bought a Raspberry pi 3b+ recently to make many of the projects I had dreamed of. Most of these (or maybe all) involves controlling the GPIO pins over the internet using an app. One of the ...
1
vote
1answer
131 views

Dual-Boot Windows 10 for ARM and Raspbian

I have a 1 TB HDD running Raspbian on a Pi 3. I want to try Windows 10 for ARM (NOT THE PATHETIC WINDOWS 10 IoT THING!!!) on the same system, without reinstalling Raspbian, as I have tons of programs ...
3
votes
1answer
251 views

Raspbian - wpa_supplicant.conf Country meaning

I'm a bit confused of the country property in wpa_supplicant.conf. In official Raspberry Wifi Documentation it says this: On the Raspberry Pi 3 Model B+, you will also need to set the country ...
0
votes
1answer
34 views

Android cannot connect to Pi's wlan

I'm running a Node server on port :3000 and want to access it from other devices using Pi's wlan0 address. wlan0: 169.254.36.22 Accessing from Macbook works Accessing from iPhone works Accessing ...
0
votes
1answer
34 views

How do I play (not add) videos on my USB SSD external hard drive in LibreElec on my Raspberry Pi 3?

I want to play videos, music, view pictures from the SSD. Not add them onto the PI hard drive as there is too much data for my Micro SD card to hold. As an alternative can I have my Pi boot LibreElec ...
2
votes
1answer
45 views

RPi won't detect built-in BT adapter

My RPi 3 says no bluetooth adapter is detected and therefore won't let me connect to a device. The BT logo is greyed out instead of blue and running sudo systemctl status bluetooth it says the service ...
1
vote
1answer
132 views

How to compile project on Raspberry Pi, even when g++'s virtual memory exhausted despide big SWAP?

I want to build Iroha hyperledger on Raspberry Pi 3. So I've downloaded code and all dependencies and compiler gcc-8.2 (downloaded precompiled from here), then configured without tests: cmake -...