Questions tagged [pi-3]

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

987 questions with no upvoted or accepted answers
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Using the Pi 3 as a Bluetooth speaker and Mic

I'm new to the Raspberry Pi. I'm working on a home automation project that requires the Pi to act as a Bluetooth speaker and mic for a phone. In this project the Pi basically acts like a Bluetooth ...
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0answers
982 views

Raspberry Pi 3, chromium_browser, and Mobaxterm...Not happy!

I have a Raspberry Pi 3 setup running raspbien (usual os, jesie). I use mobaxterm to connect to the box and start up a gui. I can run several apps fine..such as gimp for instance. When I try and ...
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0answers
11k views

Connecting a bluetooth device in python using pybluez

wondering if anyone can help me with this. I'm very new to programming in general and am struggling getting my head around bluetooth. I have been trying to follow the examples given at http://people....
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0answers
3k views

Raspberry pi 3 ERR_NAME_RESOLUTION_FAILED

chromium kept displaying ERR_NAME_RESOLUTION_FAILED. The raspberry pi is connected in my laptop via Ethernet cable. I use advanced ip scanner, putty and xming. I already shared my wifi connection to ...
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0answers
2k views

Is it possible to install Windows IoT to a USB drive and use this to boot?

I can't find anything online about installing Windows IoT to an USB drive. My Raspberry Pi 3's microSD slot is occupied, and the official guide says I need to use a microSD card in order to flash it ...
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0answers
1k views

Live stream to Youtube - sound sync

I have Raspberry pi 3 model b. I stream video and sound (from dedicated camera + usb sound card) to Youtube by command: raspivid -o - -t 0 -vf -hf -fps 30 -b 600000 | ffmpeg -i pipe: -f alsa -ac 1 -i ...
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0answers
250 views

Options for building docker images for pi 3 on amd64?

I've got a Raspberry Pi 3 running Raspbian with Docker in a headless setup just fine. I've been building an application with docker-compose directly on the Pi, and while that's working just fine, it's ...
2
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0answers
1k views

Unable to change GPIO voltage

I have a Raspberry Pi 3 Model B, running Raspbian. I am using the GPIO pins for a project using PWM to controller a piezoelectric speaker. Everything seemed to be working fine, until earlier today ...
2
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0answers
1k views

Sense HAT not working on RPi 3 correctly with official power supply

I have a Raspberry Pi 3 model B. I was using a 5.25V 2A power supply that I used for my previous Pi 2 (which made the red light flash because it didn't provide enough power) until last week, when the ...
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0answers
192 views

How do I add the nightly Risc Os build as an option to the NOOBs / PINN OS list?

The latest NOOBs image contains the RISCOS boot binary, but the option to install it dosen't appear on a Pi-3. I guess as the official release only supports Pi-1 + Pi-2, while the nightly build ...
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1k views

MATRIX Creator : Getting microphone input into pulseaudio?

A note on versions; PulseAudio 10.0 Raspbian - upgraded only (not dist-upgrade) to stretch to get Pulse Audio 10 ALSA reports the following virtual PCM interfaces; mic_channelX is the Matrix ...
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3answers
11k views

No audio output via USB sound card

I bought an external USB sound card for my Raspberry Pi because the sound quality of the built-in 3.5mm audio jack is not that good and I experienced a lot of noise. The retailer of the sound card is ...
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0answers
9k views

Pi as NAT router - Routing is not working

I'm following this helpful guideline on using a Pi as a router. I have a Pi 3 with Jessie Lite. The AP function is working well, but the NAT routing does not work. Any devices connected to the LAN (...
2
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1answer
1k views

NodeJs Samples with LCD screen

I am having hard time trying to find nodejs samples with the groovepi and pi 3. I want to do a simple hello world, I found a groovepi sample with intel edison but obviously that didnt work. Doing a ...
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0answers
469 views

Camera OV5647 + 3.5 LCD as a real time view

I have a OV5647 camera and 3.5 GPIO LCD. I would like to connect both of them to have a real time view in my Raspberry Pi 3. I would like to also set by programming to turn on the camera after some ...
2
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0answers
882 views

Raspberry PI 3 ARMEL support

I am working with a vendor that provides drivers that aren't compatible with PI3's ARMHF architecture. Unfortunately this vendor doesn't plan on releasing compatible drivers anytime soon. Excuse my ...
2
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0answers
447 views

*THE* weirdest display issues

I am having (very VERY) strange display issues on my Pi 3... I am using an HDMI-VGA Adapter ( https://www.adafruit.com/product/1151 ) which works perfectly fine (it works with many different devices ...
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2answers
449 views

Issue running LED matrix with Fadecandy controllers in Processing

I have built an LED matrix using 2048 ws2812b leds. It is being controlled with 4 fadecandies and a processing sketch. I have it running fine on my laptop, but when I try to run the same sketch on ...
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0answers
510 views

Understanding the memory map in QA7 document on the official website

The description of the first row says "GPU access". That looks confusing. Isn't the memory split for CPU and GPU usage? From most other sources the peripheral base is 0x3f000000. Why does it say ...
2
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2answers
3k views

BLE + RPi 3 + Node.Js

I am currently developing an application where I connect from an Android/iOS app to the Raspberry Pi 3 via Bluetooth/BLE. Once paired, the RPi will send temperature measurements to the mobile app. I ...
2
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0answers
915 views

How to use Raspberry Pi 3 inbuilt bluetooth for serial communication with PC?

I want to send data from Raspberry Pi 3 having Raspian Jessie OS. I can pair with other bluetooth devices using the Bluetooth Icon on the task bar and also using bluetoothctl. I tried to connect to a ...
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0answers
983 views

u-Blox SARA and ModemManager

I have a u-Blox SARA-U270 device connected to a Raspberry Pi 3 via UART GPIO pins, that I am trying to use for a 3G connection as a backup. I would like to manage this via NetworkManager/ModemManager ...
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0answers
207 views

File Transfer Failed : From RaspberryPi3 to My Mobile on Bluetooth

File Transfer Failed : From RaspberryPi3 to My Mobile on Bluetooth I have a Raspberry Pi 3 and the following command complete. $ sudo apt-get install pi-bluetooth $ sudo apt-get install bluetooth ...
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0answers
132 views

USB/Ethernet Stops Working While Trying to Preview Video

The setup: Raspberry Pi 3, running Windows 10 IoT Core Preview {10.0.14342.1000} Camera: A link to the camera from who I got it from I recently got a USB Camera working for taking pictures, however ...
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0answers
99 views

Windows PC Network "Disconnect" Button Disables Pi's ad-hoc Interface

I have encountered a problem with my network setup. I have three Raspberry Pi 3s running Raspbian, a Windows 7 PC, and a Mac. I have the Raspberry Pis configured to automatically startup an ad-hoc ...
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0answers
7k views

Using Python with Bluetooth on Raspberry Pi 3

Following this tutorial I successfully ran PiTooth on the RPi2MB (Wheezy). Following the same tutorial on the RPi3MB (Jessie) I get the following message "Could not configure bluetooth. Is ...
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0answers
148 views

Raspberry Pi 3 Cannot Find SD Card After First Boot

I'm a newbie when dealing with the Pi, as this is my first project with one. I installed the latest version of Retropie on a 32 GB Samsung Micro SD card. The initial boot works as expected; the ...
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0answers
1k views

Does RPi 3 have the same bandwidth for ethernet and USB?

It seems that's the case for the last Pi. But does the new one also have this limitation? Not duplicate, but reffered question:    USB bandwidth for the RPi model B+   &...
2
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1answer
1k views

Open chromium full screen on start up with login

I have a bit more difficult situation with chromium in full screen. I need to open chromium in full screen then log in to specific site to show employees stats. (username/password is saved) But every ...
2
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1answer
152 views

I cannot run rpi 3 from 8 battery (14500)

I cannot run rpi 3 from 8 battery (14500) Series circuits 29.6v. I am convert 29.6v through dc-dc converter (XL4005 DSN5000) to 5v. The converter output can be 5A. But I cannot take more than 0.5A ...
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1answer
37 views

Raspberry Pi Mailbox Interface Difficulties

I have been working on a bare metal program on my Raspberry Pi 3 B and am currently working on using the Mailbox Property Interface. I have been able to use it to initialize a framebuffer using the ...
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1answer
969 views

Libcamera does not work on the latest OS

I bought the new HD RPi camera and want to connect it to my RPi 3. I checked on the Rpi website that raspistill is being replaced by libcamera, so I updated the OS to the most recent build (Bullseye) ...
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1answer
49 views

Unable to create a switch on/off functionality in RasberryPi

I am trying to create a program which which switch an LED ON or OFF when a switch is pressed. The following is the circuit diagram The python code is import RPi.GPIO as GPIO is_lamp_on = False try: ...
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1answer
98 views

Fail to detect SPS30 particle sensor with I2C on Pi 3B

I have connected a number of I2C sensors (BME280 temperature, humidity pressure sensor, a TSL2561 light sensor and MLX90614 IR thermometer) to a Raspberry Pi 3 and they work fine. I am now trying to ...
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0answers
152 views

QT Creator - Raspberry Pi - 3.5" TFT - Could not initialize egl display

Please forgive my ignorance but I'm new to Raspberry Pi/Linux. I'm trying to make a touch screen app for the Pi using a 3.5" touch screen (xpt2046) and QT Creator (5.12.5). QT Creator is running ...
1
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1answer
105 views

Are the ARM Mailbox and Doorbell interrupts ever triggered?

I'm writing some very bare metal multi-tasking code that manipulates the hardware on a Pi3. Part of that is to initialise a frame buffer, and I'd like to avoid polling loops, where possible. (e.g. ...
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0answers
145 views

How to solve Raspberry Pi 3B & Bme280 Remote I/O error

Let me start off with the components used: GPIO extension board to connect the raspberry pi to components Bme280 (Purple thingy) Pi 3B Problem description: This problem was intermittent at first. We ...
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0answers
2k views

Install Canon printer in CUPS on RPI3

I'm trying to install a Canon MF4570dw in CUPS on a Raspberry Pi 3, but I can't make it work. This is what I've tried so far: 1. Install the printer from PPD files I've extracted the latest Canon ...
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0answers
113 views

Change the CPU Core Voltage from terminal

I was wondering if anyone is aware of how I can change the CPU Core Voltage of a Raspberry pi using system calls from the terminal. I know that we can do this by setting the over_voltage parameter in /...
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0answers
47 views

How to play through bluetooth speakers with RPi renderer on lan and openhome/linn android phone control point

Using RPi3b and clean installation of RaspberryPi OS Lite and connecting to network using lan. Media is stored on NAS and served to lan by minimserver. I have installed upmpdcli and mpd on RPi and ...
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0answers
272 views

Tensorflow on Raspberry Pi with Ubuntu 20.04

I've installed Ubuntu 20.04 on a Raspberry Pi. Both my Ubuntu and Python3 installations are 64-bit. I'm now trying to install Tensorflow so that I can run (not train) a model. I've tried various blog-...
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0answers
44 views

Connecting a phone to a Pi 3A+ using Bluetooth fails

I want to connect my phone using BLE to a Pi 3A+. For testing I have set up a Bluetooth server using this code. I have tried connecting with nRF Connect on both a Motorola Moto e5 (Android 8.0) and a ...
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0answers
52 views

glGenerateMipmap crashes on Raspberry Pi 3

I'm testing a C++ program made with GLFW and it crashes with a segmentation fault on Pi 3 but not on Pi 4. The reason of the crash is the call to glGenerateMipmap(GL_TEXTURE_2D). Systems tested: ...
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0answers
223 views

Wifi grayed out for secure networks

I have a Raspberry Pi3 Model B. I was using it with wired internet and it worked well. But now, due to a move, I can't use a wired network anymore. I would like to use the university's secure wifi. ...
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0answers
63 views

Receive and send bluetooth audio to bluetooth device from Raspberry Pi 3

I have the Raspberry Pi 3 with the latest version of Raspbian Buster and I am looking for a way to have the RPi to receive Bluetooth Audio from a phone or laptop and output the audio to a bluetooth ...
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0answers
131 views

PIR sensor always high with Raspberry Pi3 without breadboard

I have a HCSR501 PIR motion sensor, which has 3 pins (Vcc, Out, Gnd) that I've connected to 5V, GPIO 26, and Gnd respectively. Despite following all the steps in tutorials for interfacing the sensor, ...
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0answers
42 views

connecting a LAN device to openvpn through raspberry pi network bridge

hi i have recently set up a raspberry pi to be a network bridge for my router to my room as i thought it would be quicker to do than wait for the delivery of a plug in network adapter in this lock ...
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0answers
271 views

Compile Linux kernel with toolchain built for aarch64 and uClibc

I am using RPI3 model B I have compiled toolchain using crosstool-ng with the following sample. ./ct-ng aarch64-rpi3-linux-gnu Using ./ct-ng menuconfig, I changed C library from glibc to uClibc. ...
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0answers
403 views

Cannot log in to raspbian buster with default username and password

I have an issue logging in to my new raspbian buster (raspbian 10 Raspbian Buster with desktop and recommended software) using the known default {pi, raspberry}. My keyboard is in English and I have ...
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0answers
83 views

Is my PI broken or the LCD screen?

So I have an LCD screen which plugs into the pi. The pi works fine, but when I do the whole LCD-show in the terminal and it restarts it stops at either “starting login service” or “starting message ...

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