Questions tagged [pi-3]

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

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Unable to connect to the raspberry pi through SSH

I have a raspberry pi 3 with Debian os and I am unable to connect to it via ssh through VS code.The pi has already been configured and has a username and password. The raspberry pi shows the message ‘...
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WEP Hotspot help [duplicate]

I’d like to play some of my DS games online with WiiMiFi but I need to get a wep hotspot and I’d like to know what I need to set up to get one going I have a Raspberry Pi 3
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-2 votes
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I want to power RP3B+ with gpio but not sure about the circuit

I got a 4 battery holder (4-Way 18650 Battery Holder from Dfrobot) And I'm wondering do I need a resistor to power the rasbery pi via gpio 5v pin. Or do I need something else for this power supply The ...
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WiFi Direct connection peers limit on Pi4 4Gb

After setting up wifi direct starting from official image "Raspbian GNU/Linux 10 (buster)", i've developed a python script to automatic accept incoming request connection via wps_pin. At ...
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2 answers
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In what way can I connect my two raspberry-pi to a INA219 sensor at once using GPIO? This is more of a hardware question/ No Code was used

I am trying to figure out how to connect a INA219 sensor to two Raspberry Pis. I am currently using 4 wires that connect the main raspberry pi and the INA219 sensor. There is no code, I am connecting ...
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spi driver works on pi 3 and pi 4, but not on pi cm4

I have a spi driver for an nrc7292. When I load it on a pi3 or 4 it works every time, but when I load it on a cm4 it only loads correctly about half the time. What could possibly be different? Once ...
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I2C communication on Raspberry Pi 3B using smbus2

I'm trying to connect my energy measurement IC with Raspberry Pi 3B using the I2C protocol. I'm using sudo i2cdetect -y 1 to detect the connected devices and it is correctly showing the address(7-bits)...
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Boot ups but display rainbow screen on Raspberry Pi 3

I'm new in RPi, so can't resolve an problem. How can I fix a Raspberry Pi with Rainbow screen? I'm using Raspberry Pi 3 B with Raspian 10 (show below) Linux raspberrypi 5.10.103-v7+ #1529 SMP Tue Mar ...
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1 answer
33 views

How to connect to ethernet when plugging in cable?

I have a raspberry pi 3 that is connect to my home network using wifi. But I have another network that is LAN only. What I want: When I plugin the LAN cable, I want the pi to disconnect from the wifi ...
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-1 votes
1 answer
30 views

Raspberry Pi 3B not booting anymore.How to update firmwire?

I have a RPi 3b in my stack. Suddenly it stopped working correctly and after another OS flash it was dead. Now is there a way to revive it?
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Non-english character file names get changed on their own

Same Problem Mentioned Here I am running Raspbian GNU/Linux 11 (bullseye) on a Raspberry Pi 3 Model B. I have some files on a FAT32 formatted USB drive, which stores data for a Jellyfin library. When ...
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Can't connect to pigpio at localhost(8888)

So I don't think this issue is related necessarily to my code, because I'm thrown this error even running some formally working code examples from my textbook (Practical Python Programming for IoT): %%...
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1 answer
111 views

I'm unable to install FLAC on my Raspberry Pi 3

I'm trying to make a tts program on my Raspberry Pi 3 and I'm using Googles TTS API which requires that I have FLAC installed on the Pi. When I attempt to install FLAC, I'm thrown this error- pi@...
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Hardware PWM not working in Ubuntu 20.04

I'm running Ubuntu 20.04 on an RPI 3b. I need both Hardware PWM channels. I added the following line to /boot/config.txt and /boot/firmware/usercfg.txt: dtoverlay=pwm-2chan,pin=18,func=5,pin2=13,func2=...
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code not detecting ads7830 even though i2cdetect shows the address

I am trying to run Motor.py code from Freenove. I can see that my ads7830 IC is up and running i@raspberrypi:~/Freenove_Kit/Code/Python_Code/13.1.1_Motor $ i2cdetect -y 1 0 1 2 3 4 5 6 7 ...
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No library found for processing.io error error when running Processing code in raspberrypi

I am trying to run a Sketch program using Processing 4.0. The code is from FreeNove raspberrypi kit. I am getting this error No library found for processing.io No library found for processing.io No ...
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LCD display is blank

A bit like this question, but different... I bought this display and the MIPI to HDMI board. It all connects fine, but I get nothing on the display. The board is getting power (green led), but I don't ...
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Error when installing filebeat on Raspberry PI 3

I'm trying to install filebeat on my raspberry pi 3 following this tutorial https://www.gunnarleffler.com/posts/raspberry_pi_filebeats/?fbclid=IwAR1v-agodz-...
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Unable to update packages due errors of corrupted cache files

When I my trying to update packages by "sudo apt update" I have got the errors: Hit:1 http://raspbian.raspberrypi.org/raspbian bullseye InRelease Hit:2 http://archive.raspberrypi.org/debian ...
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Camera not working on Raspberry Pi 3B Running Debian Bullseye

Pi Model: Raspberry Pi 3B OS: Debian version: 11 (bullseye) Camera: Arducam Lens Board OV5647 I have connected my Raspberry Pi to my camera module and attempted to check its functionality with ...
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Filebeat on raspberry pi 3

I wanna know if is it possible to install filebeat from elasticstack (I need it to get logs file from an indoor camera) on raspberry pi 3 and if yes does anyone have a tutorial or can teach me the ...
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1 vote
1 answer
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Raspberry Pi 3 Model B won't boot but SD Card and board are fine

my Rpi has worked fine for a while but recently it stopped booting, only the red led is on while the green ACT one is not. I'm sure board is fine because I put another SD card from another Rpi and it ...
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64 views

Problem with reading GPIO input value - photoeletric sensor

Good night! I've got some problems with GPIO input values in my code (Python). I'm using a Raspberry Pi model 3, and RPi.GPIO as GPIO module. I'm tring to get the signal values of a photoeletric ...
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Raspberry Pi 3B MF-MSMF250/X Polyfuse

In the schematic diagram here https://datasheets.raspberrypi.com/rpi3/raspberry-pi-3-b-reduced-schematics.pdf there is MF-MSMF250/X polyfuse. What will happen if the polyfuse get damaged for some ...
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Getting an error while trying to set up LIRC

I'm a new Raspberry Pi 3 user and barely understand anything, I'm only familiar with Windows based platforms so I'm a little lost. I'm currently following a tutorial on how to set up lirc_rpi to send ...
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1 vote
1 answer
102 views

Raspberry PI SSH randomly closes connection

Initial Connection to the RPi is flawless, even with VS Code Remote Dev. But after some time (without special command) the RPi closes the connection ("Connection to 10.0.0.11 closed by remote ...
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1 vote
1 answer
34 views

WPA2 Enterprise Connection Drops on Raspberry Pi 3B when Set-Up is Transitioned to Headless

After a significant amount of struggle I managed to connect my Raspberry Pi 3B to my university's WPA2 Enterprise network, UCR-SECURE, in the traditional set-up with a monitor, keyboard, and mouse; ...
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Raspberry Pi 3B USB Over-current Condition

How does Raspberry Pi 3B USB protects from over-current condition? What specific device is used to determine such condition?
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Monitoring power consumption of a Raspberry Pi 3B+ device

I am wondering if it is possible to measure the power being consumed by the CPU core (ARM chip) of a Raspberry Pi? Specifically, I want to monitor this power consumption for various applications that ...
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Installing aarch64-elf for barebones compilation on raspberry pi

I'm following this tutorial but it doesn't explain how to install aarch64-elf. Can someone explain how to do this on the Raspberry Pi 3B(running raspberry pi OS). The command that will be run with it ...
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Raspberry Pi split screen with two connected screens to spi

Good day. I'm fairly new at raspberry Pi and would like to connect two SPI displays. After connected I want to make use of a camera to project the video on both screens. Therefore the one screen needs ...
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Running Raspberry PI buildroot image in qemu

I am trying to build a linux image for raspberrypi3 with buildroot and run it on qemu. Once the make process is done i can copy the sdcard.img file into a SD card and correctly run the OS on a real ...
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1 answer
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Difference between Pi3 and Pi4 RUN headers?

I am trying to disable boot when pi4 plugged to power. I found some usefull answers, but that answers are about pi 3. I am using pi 4 and I must connect together 2 RUN header pins. In pi 3 RUN header ...
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Android Lineage OS - Not working on my 7inch Screen

i'm new to using this group. Wondering if i could have some advice please? I have installed Android Lineage OS to my Pi3, it works on my normal screens i have no problems. But my problem is when i ...
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477 views

emergency mode starts by default on raspberry pi 3

When i try to start the raspberry pi 3 .. it gets stuck on: You are in emergency mode.After logging in, type “journalctl -xb” to view system logs, “systemctl reboot” to reboot, “systemctl default” or ...
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1 answer
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Cannot take picture with Canon SX 510 powershot connected to Pi3 via gphoto2

when I execute this: gphoto2 --trigger-capture This returns: *** Error *** Sorry, your camera does not support generic capture ERROR: Could not trigger capture. *** Error (-6: 'Unsupported operation')...
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-1 votes
1 answer
90 views

Rx, Tx/UART not being detected by Pi? What is wrong?

I'm working on Serial communication between the Raspberry Pi and the Arduino, with the Raspberry Pi serving as master. I connected, using a logic level shifter, Arduino's Rx (Software Serial was used ...
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Button.when_activated event is not firing even though Button.is_active is setting correctly

Thanks in advance! I am using a Pi 3B to detect activation of a sensor on my model railroad layout. The sensor by default only offers a rising edge detection scenario. I decided to go with gpiozero ...
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PI 3 doesnot see hdmi audio or audio jack ... reports no audio device

i have searched other reports. I have tried putting dtparam=audio=on in config.txt. There is no 'audio' option in raspi-config/advance pi@raspberrypi:~ $ cat /etc/os-release PRETTY_NAME="...
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2 answers
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Raspberry Pi would not start

Hi, when booting Rasberry PI I get following error messages and RPI does not start. I have took out SD Card, run chkdsk on Windows machine, did not detect errors. Is there anything I can do to fix it? ...
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libEGL warning: DRI2 failed to authenticate

I am running Bullseye on an RPi 3. In attempting to run a GNURadio application I get the subject error. During my investigation I have found several references to this issue on this and other forums. ...
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Pi 2/3 (Buster installed) to Pi 4 migration, what is to consider?

I found many comments, that the migration from pi2/3 to pi4 requires some changes, mainly because the boot partition has to be larger there. But in my understanding, the boot partition size isn't ...
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How to edit coherent_pool setting via cmdline.txt

I have a problem with connecting multiple USB devices to a RPI3B+. I found this solution which suggests that setting coherent_pool=2M in cmdline.txt resolves the issue: https://github.com/raspberrypi/...
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RPi 3 as media center powerful enough for video services?

I have now been running my RPi3 for years as a media center. I have always been very happy with it. I used it mainly to organize and play my considerable music library using Kodi. Lately I started to ...
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1 answer
156 views

Raspi3b how to get boot from USB to work?

I have a Pi3b and an PI3b+ Also I have 2 USB Sticks with different versions of Raspian both Sticks boot on the PI3b+, none is booting from the Pi3b I followed the procedure to set the usb-boot flag (...
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-1 votes
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raspberry pi wont boot (Act led blinking 4 times)

I have 2 raspberry`s (raspberry pi 3b+). One is working fine and well and if i want to turn on my other raspberry (with the same SD card what i used for the other) the ACT led is just blinking 4 times ...
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Keep UART Bluetooth enabled during boot with USB Bluetooth adapter installed

I have a Raspberry Pi 3 Model B Rev 1.2 with a built in Bluetooth adapter on the UART, if I plug in a USB Bluetooth device, both Bluetooth adapters are enabled and work. However, if you reboot the RPI ...
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2 answers
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Additional i2c_gpio is not detected on Ubuntu Server 20.04 / RPi Zero 2 W / A+

I'm trying to enable the second (GPIO-based i2c) on RPi Zero 2 W, Ubuntu server 20.04 to connect the following sensor. Note that the primary i2c pins are physically occupied as RPi is used as a hat ...
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1 vote
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Can i use a I2C PWM expander as a Digital output module?

i want to use a "IS31FL3731" I2C PWM expander to dim my LED Strip. This expander does have a lot of PWM outputs and i also need a lot of Digital outputs. So is it possible to use a few PWM ...
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1 vote
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Screen resolution on RPI3B+ too small when connected with Teamviewer + crashes

I am running 3xRPI4 and 1xRPI3B+ with the bullseye release from 30.10.2021 and after the update function from raspi-config. The RPI4 work fine, however, I cannot fix the small screen resolution of the ...
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