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Questions tagged [pi-3b+]

Use for questions specific to the Raspberry Pi Model 3 B+

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How to open port without setting router in Raspberry Pi 3 B+? Port 25565

I've got a problem. I'm making server for Minecraft server in Raspberry Pi 3 B+ and I want to open port 25565. I can't do it. I looked up many forums and videos and all people make this with setting ...
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1answer
28 views

Cannot find the drive with NOOBS files when trying to boot Pi 3 B+

Tried using this guide to install NOOBS on a micro SD card. After formatting the card with GParted to fat32 format, I simply unzipped the files from this page (NOOBS_v3_0_0.zip) and dragged all the ...
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13 views

Rpi3b+ to Rpi3b+ jtag/SWD connection and OpenOCD

I'd like to hook together two Raspberry pi 3b+ to use jtag/SWD with OpenOCD. I learned it can be done, but implementing it has proven challenging. I have two questions: How to connect the Rpi's. If I'...
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1answer
22 views

What are the functions of the test pads on the Pi 3B/3B+?

The various models of the Raspberry Pi comprise numerous test pads (testing pins). Many of these pads however are not mentioned or properly labelled in the official reduced schematics the Raspberry Pi ...
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15 views

Problem autostarting pigpiod

On my Pi3B+ I had pigpiod configured to run on boot and I can successfully run compiled c programs; specifically DHTXXD.c which contains:- /* DHTXXD.c 2016-02-16 Public Domain */ #include <stdio....
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15 views

2 Wireless network cards, 1 wireless access point, 1 ad-hoc mesh

I am working on a project where I have 2 wireless network cards on a pi 3B+. The internal wlan0 and an external wlan1. I need to have wlan0 work as an access point, and wlan1 to work as part of a ...
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1answer
43 views

Heartbeat on GPIO via config.txt

I want to have an indicator that the Pi is running an wired a LED to GPIO 21 (with a resistor). When manually turning on the LED via /sys/class/gpio the LED turns on. Unfortunately, it does not give ...
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18 views

gstreamer & alsa: stops audio output through jack when usb mic is activated

Now I'm facing a problem and need some advice, on RPI 3B+. Using two gstreamers with each pipeline, to: 1) receive an RTP stream and play it on Pi's jack. gst-launch-1.0 -v udpsrc port=20001 caps="...
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1answer
34 views

Can I give power 5V 2.1A to Raspberry Pi 3 B+?

I have already taken RPI 3 B + from post office and now I want start RPI 3 B +. But I'm seeing that I haven't got 5V 2.5A Power Block. So, I have a question. Can I give power 5V 2.1A to Raspberry Pi 3 ...
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1answer
223 views

Green LED on RPI 3B+ GPIO

I have seen a few examples of wiring a red LED directly from the RPI GPIO pins, however, I need to wire a GREEN LED and am having trouble calculating the resistor needed. I believe that a green LED ...
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19 views

MyPi issue: “Listening for incoming connections on Port 5000” then stalls

I'm trying to install MyPi and when I actually try to start the server, it stops. It's not stopping as in the program is killed but it's been listening for at least 5 minutes. I have yet to receive a ...
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1answer
60 views

Run steam link automatically when starting raspbian

I have installed steam link in raspbian stretch, but I would like it to start when the operating system starts, I've been reading and I tried it with init.d but it did not work for me. Thank you.
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11 views

My videobooth powered by raspberry pi, has a buzzing noise in the video clip, because of external lightning

My videobooth consist out of: raspberry pi 3b picamera (I use picam) usb microphone (which is actually a external sound card usb with jack input to the microphone) 4 led TL lights (230V) (switched on ...
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0answers
16 views

10 pins AWM 20624 80C 60V VW-1 compatible with RP?

Is there any way to use a 10 pins map (CSI) (AWM 20624 80C 60V VW-1) on a Raspberry PI ? The map is really smaller, so I wonder how to make it work ?
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1answer
21 views

The servo keeps rotating forever

I have 3 servo motors in my robot arm controlled by Raspberry Pi3 B+. One of the servos is (HV5932MG) (Link: "https://www.banggood.com/JX-Servo-PDI-HV5932MG-30KG-Large-Torque-360-High-Voltage-Digital-...
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1answer
30 views

Upgrading to Latest Numpy Version on Raspberry Pi 3

I'm not sure if this is a Raspberry Pi issue, Raspbian Issue, Python Issue, or all of the above. So forgive me if this is the wrong place to ask this. I just got me a Raspberry Pi 3B+ and installed ...
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2answers
41 views

Raspberry Pi 3 B+ shuts down randomly [closed]

My RPi 3 B+ shuts down randomly. I have a official power supply and a 32 GB Toshiba microSDHC class 4 card. I'm using it as a host for a Discord bot.
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1answer
53 views

GPIO pins mind bogling error

Raspberry pi 3 b+ I'm trying to make an Obstacle avoidance obstacles. It's a very simple project. I tried with one ultra sonic sensor, it worked. Gave me the distance which i could further ...
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2answers
33 views

Powering Raspberry Pi and Arduino

I'm curious about powering Arduino Uno, Raspberry pi 3 b+ and motor driver L298n. I've got 11.1V / 2200 maH li-po battery. Firstly connected battery to motor driver, then feeded arduino from 5V out ...
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28 views

Android RPi bluetooth disconnects after pairing

I'm trying to set up some simple communication between my RPi 3B+ and my phone One Plus 3, but when I try to pair the RPi, it gets disconnected a few seconds after pairing, and disappears from "Paired ...
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21 views

Using Bluetooth to transfer data between two Pi's

I am using two Pi 3B+'s, one is a calculator without a screen, the other one is the human interface with a screen. I would like to command the calculator with the other Pi via Bluetooth. I am using ...
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1answer
29 views

pymodbus on Raspberry Pi 3B and Energy Meter

Followed this thread on enabling the serial console on the Raspberry Pi 3B. Checked the functionality using this code: dmesg | grep tty Which produced these results: ... console [tty1] enabled ......
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2answers
63 views

sqlite gigabyte database on RPi3B+ [closed]

I need r/w access to a sqlite database of several GBytes. Putting it on the SD card is out of the question as the writing would wear out the SD too quickly. This is why I was thinking of network file ...
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1answer
45 views

RPI3 does not boot, after which SD card is no longer usable

I have an RPi3 B+ on which I had set up NextCloudPi, using an external USB drive to store files to. Everything worked fine, so I decided to put the RPi into a case. I used an original RPi case. When I ...
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2answers
82 views

How did I manage to fry my pi 3+B? Can I recover it?

I'm new to Raspberry pi and electronics in general. All worked fine (a node webserver, reading a DHT22 sensor) then I tried this tutorial - https://www.raspberrypi.org/magpi/breadboard-tutorial/. It ...
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1answer
21 views

Raspberry Pi 3B+ doesnt play audio via BT speaker

so I wanted to play audio via a bluetooth speaker. I tried it with my Phillips BTM3160 and my Creative iRoar Go. The Pi wouldn't even connect to the Phillips one and on the Creative it plays with the ...
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48 views

Failed to execute child process “xterm”

I updated my Pi yesterday. Afterwards my own sh program, which is for switching audio-outputs stopped starting with the error message Failed to execute child process "xterm". The programm uses the #!/...
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2answers
48 views

RPi to Arduino I2C block_data read fails with “Errno 121, Remote I/O error” (Python3)

Folks, I cringe to bring this up as it has been discussed frequently, but I am at a loss. Background: I have a Raspberry project with about 3000 lines of Python3 code and want to add a wireless ...
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26 views

Add Bluetooth 5 to Pi3 B+

Are there already easy to add Bluetooth 5 chips for the Pi3 B+. I couldn't find anything but maybe someone here has done it before or has a clue how to add Bluetooth 5 capabilities? I want to increase ...
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0answers
23 views

Ethernet Indicator led on pi 3B+ not glowing

I am a newbie to Raspberry Pi and recently bought Raspberry pi 3 B+. I first downloaded and burn the minibian on sd card as some course suggested minibian. But whenever I connect pi with power, only ...
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1answer
33 views

Raspberry Pi 3B+ Ad-Hoc WiFi issue

I can't seem to connect to my Pi 3b+'s ad-hoc network. I set it up using https://github.com/simondlevy/RPiAdHocWiFi I have attempted with two windows 10 machines and an android phone. On Windows 10 ...
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52 views

PI NOIR Camera Not Working

I recently bought a Raspberry Pi 3B+ and a Pi Noir Camera and attempted to set them up. I followed the install instructions on the Pi website for the board and camera, and unfortunately received an ...
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0answers
15 views

raspberry Pi & PN532 receiving NDEF from Android via NFC

I'm starting a project which could transmit data containing some plain text to raspberry pi, and trying to use PN532 for NFC trasnmission. I've successfully connectec PN532 using i2c and libnfc, and ...
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0answers
21 views

Hard-drive standby mode - drive doesn't wake up

I want to use an external hard drive and send it to standby mode. In order to do that I used hdparm. Then I used the comment hdparm -y /dev/sda1 specified for my hard drive, so it goes into standby ...
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40 views

Effects of fan vibration on Raspberry Pi. (and ideal operating temperature)

I am using a case with fan to keep my Raspberry Pi which is deployed as a storage server. It has a USB HDD (platter based HDD, not SSD) attached to it. There's also a USB drive (pen drive) to store ...
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1answer
29 views

Is it possible to use my Raspberry Pi as an ethernet to USB adapter?

I am trying to install various linux distros on my MacBook Air and MacBook Pro machines. They often require an ethernet connection for the installation. Instead of paying for and waiting for an ...
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1answer
135 views

Setting up a static IP address in Raspbian Stretch using the “new way” (dhcpcd.conf)

This question is in relation with the following landmark article: How do I set up networking/WiFi/static IP address? I have a raspberry PI3B+ with raspbian stretch lite (2018-10-09-raspbian-stretch-...
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41 views

KeDei 3.5" TFT v6.3 with octopi on raspberry pi 3B+

I have bought KeDei 3.5" TFT screen from Banggood. It works well on stretch image with the drivers downloaded from KeDei Website But, I am unable to get the display working with octopi TouchUI. After ...
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13 views

Raspberry Pi with DNFC tag

I am new to Raspberry Pi. Recently a couple of colleagues and I decided to create a system that would utilize the Raspberry Pi to send a digital book to a DNFC tag that can be accessed via link. The ...
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51 views

Captive portal in standalone network

I want to know is it possible to set up apache as captive portal serving files from rp memory. So far I've managed to create standalone network following this link Setting up a Raspberry Pi as an ...
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2answers
32 views

Creating symbolic link in RASPBIAN (reduce I/Os on memory card)

I'm doing this to reduce I/Os on memory card of raspberry pi. I want to redirect logs under /var/log to a mounted external drive. I am using following commands in the stated order to create the links. ...
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0answers
80 views

double linked list error when running GQRX on Raspbian

I just6 got my new my rpi 3B+ and i wanted to test RTL-SDR dongle with it. i installed the RTL-SDR drivers and tested it using rtl_sdr -t and it looks fine, but when i tried gqrx i keep getting this ...
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2answers
74 views

How to Check SD card is working or not in Raspberry Pi?

If i put sd card in raspberry pi and want check whether it is working or not. Is there any procedure in raspberry pi to check it. I want to check my either my SD card is broken down or corrupted.
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12 views

How to detect breakage or cutouts of a closed box using ultrasonic sensor and raspberry pi?

I am building a secure box. I want to detect if someone cut opens the box or cut a small hole on the surface of the box using ultrasonic sensor or some other sensor placed inside the closed box. Is ...
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2answers
83 views

Lan and Wifi interfaces behave strangely when trying to set a static IP

I'm using an RPI3B+ to learn about dhcp servers. I've hit a snag I can't figure out. Please bear with me. I want to explain what's happening in detail so you can understand it better. I booted my pi ...
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1answer
43 views

Restrict WiFi range of Pi 3b+

I want to restrict the wifi range of my Pi in order to only have a really small range of around one or two meters for my access point. I'm not totally new, but I don't know any way to reach the goal ...
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1answer
169 views

Wifi Not Working with Ubuntu MATE 16.04 and Pi 3b+

I was able to get Ubuntu MATE to finally run on my Pi 3B+ after following this tutorial: https://www.youtube.com/watch?v=tdJrd75_068&lc=z234tvgocvmqyzb5a04t1aokgml1ll00iwv1gbnt2da0rk0h00410....
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0answers
90 views

hostapd service not starting

I am trying to build a hotspot around raspberry pi with the Quectel 4G LTE Module and base shield. Whenever the RPi boots up the udhcpd service status keeps as running but however hostapd service ...
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2answers
28 views

Restore UART pins 8 & 10 after GPIO.cleanup() without reboot

A Raspberry Pi 3B+ is talking to an STM32 chip via UART over pins 8 (TXD) & 10 (RXD). When I take control of those pins using GPIO.setup(8, GPIO.OUTPUT); GPIO.output(8, GPIO.LOW); and later ...
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41 views

MacOS Unable to init server error when SSH'ng to Raspberry Pi

I have a project where I have created a Docker container for OpenCV and another Docker container for my Python codebase which can do motion detection on my Raspberry Pi installed with the Pi camera ...