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Questions tagged [pi-3]

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

2
votes
1answer
280 views

Raspberry Pi 3 & Arduino: [bluetooth.btcommon.BluetoothError: (112, 'Host is down')]

I am trying to send informations from Raspberry Pi 3 to Arduino Uno with bluetooth. I managed to connect the Arduino's bluetooth module with the Raspberry Pi. But I have this error when I execute my ...
0
votes
0answers
6 views

Ubuntu MATE Pi not connecting to monitor?

I just flashed a MicroSD card with Ubuntu MATE. I booted up my Pi 3 Model B with it and the monitor is just showing a black screen. The monitor looks like it is connected to the Pi, because it is on ...
3
votes
1answer
369 views

Jessie Lite Pi 3 inbuilt Wi-Fi won't work

I downloaded the latest version of Jessie Lite (2017-04-10) and followed the setup guide. Wi-fi won't work. Here is my problem as near as I can figure it out. Wi-Fi details in Jessie are entered into ...
3
votes
2answers
258 views

How many serial ports are on the Pi 3?

How many serial ports are on the Pi 3? There is one on the GPIO pin that goes to ttyS0. Is there a separate one for USB? I have read somewhere about /dev/ttyUSB0. Is that a separate serial port? ...
3
votes
2answers
200 views

I want to run a Python 3 script on startup and in an endless loop on my Raspberry Pi

I have created a smart vending machine using my Raspberry Pi. For now, I open the Raspberry Pi using SSH and run the script manually for every transaction. I want to automate the process and run the ...
0
votes
3answers
507 views

Can't connect to Pi3 using macbook air and ethernet connection

I am trying to connect for the first time to a Raspberry Pi 3 with a Macbook air and an ethernet connection. I do the following steps: Insert Ethernet cable into Macbook (with a new thunderbolt-...
0
votes
3answers
38 views

How to add text file to Raspberry Pi folders' directory without opening the operating system

I need to add a text file to any raspbian folder but without opening the OS. I tried as follows: I inserted the SD card in my computer. I sent the text file to the SD card. I found the file in the "...
1
vote
1answer
2k views

Raspberry Pi 3 BLE scanning failure

I am trying to implement the next code to scan for BLE devices: #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #include <bluetooth/...
0
votes
1answer
26 views

How do I can connect to static IP eth0 through wlan0

What I want to do : Device A (PLC, static ip=100.10.10.11) | | eth0 connection | Device B (raspberry B3, Rasbian lite) | | wlan0 (wi-fi) OR USB to Network ...
0
votes
1answer
18 views

How to send a file to raspi from different computers which are not connected to one another

It is first time for me working with Raspi. I would like to send a file(if possible via mail in the form of attachments) to my raspi from one/more computers/systems(which are not connected to each ...
1
vote
1answer
1k views

How to enable on-demand cellular PPP connection as backup to eth0

I have a Raspberry Pi 3 device to which I have added a MultiTech MTQ-LAT3-B02 modem. I am able to successfully use pppd to connect to the cellular network. I then can add a ppp0 route and ...
-5
votes
0answers
23 views

Scada for Raspberry Pi - prices? [on hold]

Do you have any experiences with SCADA solutions for Raspberry Pi? I want to find optimal solution, where is balance between number of tags, stability, functionality and price. Let me know, if you ...
0
votes
0answers
28 views

My Raspberry Pi Flask server stops responding

I have a Raspberry Pi 3. On my Raspberry Pi I have a Python script that initializes a Flask server, the Python script returns some basic JSON. The Python script is initiated on boot using process ...
0
votes
2answers
777 views

Control which devices connect to which USB port on startup

I have a Raspberry Pi 3 with a GPS module and an ELM327 adaptor both connected to USB ports. Typically, the GPS module comes up on /dev/ttyUSB0 and the ELM adaptor on /dev/ttyUSB1, which is fine, ...
-1
votes
1answer
51 views

Raspberry Pi at scale, how to get unique id that can be read from software and hardware

We are going to adopt Raspberry Pi in our products, this means the RP must associate with unique product. Given that RP does not have any printed serial number on its board, How one can get any unique ...
2
votes
1answer
31 views

Normal Work of RPi 3B+

I am newbie and i want to understand watching only on indicators, is Rpi 3 B+ work quite well? I mean, are green and red lights should glowing both permanently together or red light can glows ...
0
votes
2answers
34 views

Mac address of my raspeberry Pi 3 keeps changing after every reboot

Everytime I restart my raspberry pi the Mac address changes. Due to this, while connecting remotely I have to hunt for its new IP.
0
votes
0answers
22 views

raspberry pi 3 with GPS HAT, status code (data is void)

Hello I'm new in python and raspberry, today I try to run a script take in 'https://www.rhydolabz.com/wiki/?p=18639#comment-47045' But I don't have a valid data in my status code. The code : #...
0
votes
1answer
1k views

Raspberry pi3 and odoo image

Every time i use odoo posbox image on the raspberry, i can't use the sudo command, did i miss something?
1
vote
0answers
14 views

DS18B20 temp sensor works on Pi 3B+ but not Zero W

I have a breadboard prototype working with a cabled (waterproof and regular temp) DS18B20 sensor and a AM2302 sensor on a 3B+. All is well with it recording at a set interval from each sensor. I'd ...
2
votes
1answer
116 views

part incompatibilities

I am trying to control a 4.5V motor with a pi. I am going to use this to control the motor: https://www.ebay.com/itm/2X-L298N-Dual-H-Bridge-DC-Stepper-Motor-Driver-Controller-Board-Arduino/...
0
votes
3answers
892 views

RPi3 with raspbian as a router?

It's been more than 1 week am trying to configure my Pi as an internet gateway. I've played with several 10s of configurations shown on the web, but none of them work. here's my setup: hard: a Pi ...
1
vote
0answers
17 views

Issue with controlling GPIO via Flask web app

I am currently building a project in which I am using a Flask web app to control various different components with the pi's GPIO. The issue i am currently having is stopping the execution of code that ...
0
votes
1answer
711 views

Change raspberry pi sleep time

I recently bought the 7" touchscreen for my raspberry pi B 3 running Raspbian and and wanting to use it as a wall mounted display for a smart home project. However I would like the touchscreen to "...
0
votes
1answer
499 views

Buildroot Raspberry Pi 3 - No wireless interface

I am attempting to get a working buildroot image working on my Raspberry Pi 3 but have run into an issue, I cannot set up a wifi connection. Running ifconfig -a only shows the eth0 and loopback ...
1
vote
1answer
1k views

Raspberry Pi 3, bluetooth is not getting connected with HM-10 bluetooth module

I currently have a Raspberry Pi 3 with built-in bluetooth and some of my work specification require to connect it with HM-10 bluetooth module but I am unable to do so. I have tried various methods ...
0
votes
1answer
43 views

Problem with auto pair a Bluetooth device

https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/test/simple-agent I tried the Above Python script but getting a dialogue box 'Pairing Requested'. How to remove that dialogue box?
0
votes
1answer
22 views

RPI 3 B+ configured as wireless extender (AP + client) troubleshooting

Im trying to configure my RPi 3 B+ as a wireless extender using the internal wifi chip aacting as the client and AP. Ive been following this guide as it seems most suitable for os/model/application ...
1
vote
1answer
459 views

Raspberry Pi 3 will not load SD Card

I have a very strange problem and have gone through 2 pi's atm. I have Raspberry Pi 3, I put an OMV imageon it [1]. The first time I boot up the Raspberry Pi it outputs and has a Kernal error: I try ...
0
votes
1answer
1k views

Raspberry pi 3 model b doesn't boot

I recently bought a new pi 3 from a merchant on a platform like ebay. It came as a combo with power supply 2.5A, the board itself, heatsinks and the white and red enclosure box. Everything looks fine ...
1
vote
2answers
43 views

Got 3 heatsinks with my raspberry pi?

I got 3 heatsinks with my raspberry pi 3 B+ which was ordered via my school. I got 2 small ones (both the size of the Ethernet chip) and a big one(size of SoC). So far websites always tell me to put ...
0
votes
2answers
659 views

Mulitple Input state changes/event detection

Picture 1 shows my setup. I connected the RPi3 Input parallel to an I/O terminal. The inputs are connected to a pull down resistor setup. Pictures 2 and 3 show the setup more in detail. Program-> ...
1
vote
1answer
324 views

Switch between wifi client and access point without reboot

I want my Raspberry Pi to be used as access point or as client connected to my internet router but not both together. So I want to switch between these two modes with one simple command without ...
0
votes
1answer
741 views

Electron app just shows blank white screen on a Raspberry Pi

I am trying to load a program on an ARM machine which I was running on a Linux on an x86 machine. The program loads but just with a white screen. The program was developed using electron and when I ...
0
votes
1answer
972 views

Kivy: config.ini [Input] section: My touchscreen settings don't apply

I am trying to use an Elo Touch monitor to work with kivy. At first i calibrated the monitor with xCalibration wich worked fine: Calibrating EVDEV driver for "EloTouchSystems,Inc Elo TouchSystems ...
1
vote
1answer
49 views

Rasp pi 3 reliability - automatic updating a problem?

I have a pi 3 with Android Things that I use to control an irrigation system. It connects to wifi, gets the weather forecast and controls the irrigation valves based on the weather info. It runs ...
3
votes
1answer
884 views

Android Marshmallow porting to RPi 3

I am trying out on Android Porting. Since I don't have any prior experience with porting, I decided to try porting Marshmallow(6.0.0_r5) to Raspberry Pi 3. As far as I know, and if I am wrong pls ...
0
votes
1answer
1k views

Can cPanel run on Raspbian?

Is it possible to run cPanel on Raspbian? I have a Raspberry Pi 3 Model B, and I want to know if this is possible before I go on purchasing cPanel. I currently have a virtual server on my Raspberry Pi....
1
vote
1answer
7k views

Bridge Ethernet and wifi on Raspberry Pi 3 to reach ethernet device

I have a raspberry Pi 3 that is connected to a measurement device through the Ethernet port and that provides a WiFi network using dnsmasq. As things are now, I can send command to the device from my ...
0
votes
0answers
17 views

How can I install java on a raspberry pi running kali linux

I am trying out kali Linux on my raspberry pi for the first time, and I am trying to install java, as I use it a lot on my pi. I didn’t want to give this up because of my new os. However, when I try ...
0
votes
1answer
42 views

Not able to compile the u-boot 2017.09

This is the OS info that I am using in my pi3 (BCM 2837) board. pi@raspberrypi:~ $ uname -a Linux raspberrypi 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l GNU/Linux [ am I using the ...
0
votes
0answers
15 views

Re-link Google Home Account with Assistant Pi [closed]

I installed the Google assistant on a Raspberry pi 3+ and it works perfectly. I see the Raspberry in my Google Home App and I can configure some features. However, by mistake, I have unlinked from the ...
0
votes
1answer
857 views

Raspberry Pi 3: Kernel Panic 179.2

Total newb to Raspberries here, never touched Linux either. I've just gotten an Rpi 3 with 3.5" LCD and installed RASPBIAN JESSIE WITH PIXEL via Etcher to 8 GB card following the instructions on ...
1
vote
2answers
3k views

Ethernet connection of pi is not detected by laptop

I have a Raspberry Pi 3 Model B, and I'm trying to use my laptop screen as display for the Pi. I had followed various tutorials for this none of it is working. I found that laptop couldn't detect the ...
-1
votes
1answer
72 views

Python 3.7 takes 3 minutes to start

On Raspbian lite Stretch with a compiled python3.7.3 a python program takes 3 minutes to start the first run. Second and subsequent runs start almost immediately. (3 minutes measured from the ...
1
vote
2answers
56 views

What is the best way to copy the whole rasbian image?

I want to create a copy of my current raspberry pi image with all the data and programms so that I can flash it on another sd card and run it from there. I have following problems: For some reason ...
0
votes
1answer
865 views

Building WPEWebkit on a Pi 3

I'm following the instructions on building WPEWebkit on a Pi 3. But it doesn't work, I've tried this as well. I've updated my gcc to 6.3. I'm using Raspbian Jessie w/ Pixel (4.4). Here is the ...
1
vote
1answer
18 views

NetworkManager not working on properly RasPi 3

I'm testing NetworkManager using 2 keyfile: one keyfile for the wired connection and one keyfile for the wireless connection. The setup works great on Raspberry Pi 1 and Raspberry pi 2. On ...
0
votes
1answer
662 views

shell script not working in crontab but works manually

I am using crontab to open an image at every minute using a shell script. My script is working if I run it manually. But it is not executing in crontab. I have another script running well in crontab ...
-2
votes
0answers
29 views

RasberryPI 3 help! [closed]

Hi I'm very new to all this, I would like to use my raspberry Pi on a TV with scrolling pages with different information on each page and if possible travel updates and 24hr news, any help or ...