Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [pi-3b+]

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

3
votes
1answer
98 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 ...
1
vote
0answers
49 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....
1
vote
1answer
62 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 ...
-1
votes
1answer
46 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 ...
2
votes
1answer
254 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 ...
-1
votes
0answers
23 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 ...
0
votes
1answer
311 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.
0
votes
0answers
15 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 ...
0
votes
1answer
32 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-...
1
vote
1answer
111 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 ...
0
votes
2answers
60 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.
0
votes
1answer
55 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 ...
0
votes
2answers
43 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 ...
1
vote
0answers
68 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 ...
1
vote
0answers
36 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 ...
0
votes
1answer
75 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 ......
0
votes
2answers
76 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 ...
1
vote
1answer
71 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 ...
1
vote
2answers
92 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 ...
0
votes
1answer
66 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 ...
0
votes
1answer
168 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 #!/...
1
vote
2answers
67 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 ...
0
votes
0answers
57 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 ...
1
vote
0answers
33 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 ...
1
vote
1answer
50 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 ...
1
vote
0answers
61 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 ...
-1
votes
0answers
39 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 ...
0
votes
0answers
27 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 ...
0
votes
0answers
44 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 ...
0
votes
1answer
33 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 ...
0
votes
1answer
425 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-...
-1
votes
0answers
14 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 ...
0
votes
0answers
121 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 ...
0
votes
2answers
46 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. ...
0
votes
2answers
195 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.
-1
votes
0answers
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 ...
1
vote
2answers
132 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 ...
1
vote
1answer
94 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 ...
0
votes
1answer
429 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....
0
votes
0answers
128 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 ...
0
votes
2answers
36 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 ...
0
votes
0answers
72 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 ...
0
votes
1answer
45 views

Jessie lite reboot hang on Rpi 3

I've got an rpi3 (Linux raspberrypi 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017 armv7l GNU/Linux) that intermittently hangs on reboot. I'm a bit vague on how to track down the cause since the ...
0
votes
0answers
12 views

How to enable audio volume on 3b+ /w vx1 usb sound card

I have an rpi 3b+ that I want to get all audio to come out of the USB sound card - a VX1, which seems to have worked on an earlier version from this When I power it up / connect it, it gets detected ...
1
vote
1answer
32 views

Why does screen go blank while wifi data is being transmitted?

I got a Raspberry Pi 3 B+ with 2.5A power supply that came with it. I've connected a VGA monitor (via an HDMI-VGA adapter) and keyboard to it, and connected it to the WiFi. From the beginning, the ...
-1
votes
0answers
24 views

raspicam Pi NOIR infrared not working

I can t get the IR sensitivity to work using raspivid I have a camera module v2 Pi NOIR plus LEDs, both connected. when I run the command the first second shows nice IR detection and then it ...
0
votes
0answers
19 views

Output in PulseAudio only switchable when running in root account

I'm trying to have PulseAudio play sound through the HDMI port. Sadly this doesn't work, when loggen in as a normal user. The green tick is non existent in all accounts, but the root account, which ...
0
votes
1answer
68 views

Accessing RJ45 pins individually from Raspberry

I bought a small optical monitor sensor. It basically detects optical pulses from an electrical meter and then triggers an ISR on a datalogger, which is a concrete product for this purpose. Because of ...
0
votes
1answer
73 views

Binary ON/OFF from Current Transformer

I have a SCT-013-000 100A Non-invasive AC Current Sensor Split-Core Clamp Current Transformer that I want to connect to the Raspberry Pi 3b+. I am thinking of using an A-to-D converter (ADC 3008) as ...
0
votes
0answers
48 views

pigpio controlling two continuous servo motors

I am relatively new to controlling gpio pins with python and the pigpio library. I am trying to build a small robot to be controlled with an old xbox 360 remote. I've downloaded and installed all ...