Questions tagged [pi-2]

This refers to the quad-core Raspberry Pi 2 (currently only available as a "B" model with Ethernet and four USB ports), with 1 gigabyte of RAM.

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Carberry on Linux Raspbian

I recently bought a new Carberry (http://www.carberry.it/index.php) for Raspberry Pi B 2/3, together with its Carbian OS and installed it on a Raspberry Pi3/ModelB. However, It shuts down few ...
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227 views

Get modem msisdn from incoming smstools

I have device and modem connected with sim card. And I have raspberry and smstools installed in the device. It all works very good with smsd configuration. When sms is sent to the the number of the ...
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1answer
27 views

Setting up an AIS Reciver [closed]

I want to set up an AIS receiver on my pi. Any ideas how this can be done. I have a generic RTL-SDR USB stick.
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2answers
577 views

Reading values from a standard digital kitchen scale via raspberry pi [closed]

Is there a way to read the values from a standard digital scale via raspberry pi ? what I'm trying to do is, to get my kettle to work via raspberry pi. My however I need to come up with a way to ...
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1answer
42 views

macos x installion rapsberry pi

Hi I just installed my Pi according to this tutorial https://www.youtube.com/watch?v=4Fe1C1D5DhU but I got just one MacBook so as I put the SD card back, it shows this error The disk you inserted ...
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1answer
124 views

Raspberry Pi 24/7 Modbus Rtu proyect

the conpany i work for is making a proyect, we made Modbus RTU connection using raspberry pi 3 as a gateway, and saving the data to Mysql. this proyect have to be 24/7 and running forever, im ...
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1answer
25 views

Raspberry pi ok as usb drive

I want to make a raspberry pi model B , into a usb drive. I know that there are many tutorials available over the internet, but I want to make a change in it , which I can't find anywhere. Goal: The ...
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2answers
1k views

NRF24L01 Arduino and raspberry

I've been trying for long time communicate arduino and raspberry pi using NRF24L01 module, for now it has been impossible. I followed the next tutorial: Tutorial NRF24L01 connections Arduino: CE - 9,...
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1answer
82 views

Raspberry Pi LED Not Turning On With Button

So, I am trying to use the raspberry pi model 2b with Debian to control a LED light using a button. But, when I run the python script (made with python2 btw), it brings up no errors, but instead when ...
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12 views

Enable sharing - I don't know which options in the drop-down to choose

I have connected my Raspberry 2 to my PC with a ethernet cable and a USB cable. I use wifi. But when I try to enable sharing I don't these options in the drop-down. Ethernet Virtualbox host-only ...
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1answer
395 views

Anyone get direct esp-now to raspberry pi (or other linux wifi device) working?

It would be nice to be able to use raspberry wifi to receive ESP-NOW messages directly and eliminate another ESP-to-PI device to manage. I think this is where @ Alexandr Zarubkin was going but I don'...
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4answers
132 views

How to know the IP address of a Pi without an Ethernet or a display

I use a raspberry Pi 2. I have already installed raspbian and configured to a network using a usb-wifi a while back. Now I've moved to another place and I don't have an ethernet cable/ hdmi ...
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1answer
397 views

Send Data from a Raspberry Pi to a Webservice with a Python Script?

I have a Webservice wich is reachable over a URL and I have a Raspberry with different sensors wich measures the temperature and co2.Now I want to write a Python script to send this values to the ...
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39 views

RPI - Rainbow Screen after SSH reboot - Parrot Security ARMHF

I cant seem to find a definitive solution to my problem. I have learned now by this THIRD occasion that I cannot simply "reboot" from SSH without killing my RPI Parrot installation and having to ...
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19 views

Micro-Sd memory problem

i am using a 64gb micro-SD but after using etcher for kali (7 Gb), i have only 55 mb left! How can i solve? I tried to burn the .img again but the problem is everytime the same
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177 views

Pi Crashing - NTP Issue ?

I am running a Raspberry Pi 3 as a weather station at home, and it will crash every couple of days. When I restart, the only clue in syslog is: Apr 15 13:35:27 weather systemd[642]: Time has been ...
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1answer
381 views

Raspberry Pi Model 2B Hostapd installation error: Unable to locate package

So, I am trying to set up my raspberry pi model 2B as a wifi hotspot. All the articles recommended installing and using hostapd and dnsmasq. I was able to install the dnsmasq package without any ...
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165 views

How can I create a bootable disk/image for raspberry pi?

I want to to create a (kind of) preset image for raspberry that will include some application set up that I'm working on a project of mine. So, let's start with a simple problem so that from this ...
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4answers
601 views

Connect to Raspberry Pi Over the Air Without Internet

For a school project, my group and I have decided to make a weather buoy to put in the ocean. We have several parts available to make the buoy, including 2 Raspberry Pis (One version 2 model B, and ...
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1answer
32 views

Permanent & Safe Powering of Raspberry Pi in Confined Space

I have a small project that involves the automation of the lights in a room using a Raspberry Pi and a set of four relays. All of the software and hardware is operational, and it is ready to be ...
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1answer
189 views

Panel settings: System panels all aligned left

I mucked with my panel settings using a janky mouse, and somehow removed a setting that had my system (clock, wifi, sound, etc.) on the right, and the Menu + custom apps on the left. Now everything's ...
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2answers
2k views

Is it possible to use a mSATA SSD AND SATA HDD on the same Raspberry Pi 3 Model B+? (and/or a M.2 SATA)

I'm working on a setup for my new RPi 3 B+, and I was wondering if it's at all possible to use both mSATA SSD storage (attached via the mSATA SSD storage expansion board) in addition to another SATA ...
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1answer
500 views

Is it possible to connect multiple DHT11 modules to Raspberry Pi 3?

Can I read at least 3 DHT11 sensors using GPIO with a Raspberry Pi 3? And if yes, how? Now I only have 1 DHT11 connected to the Raspberry Pi, but I used a library and I don't know how to add more ...
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3answers
2k views

Disable ALL video outputs and USB Ports. Only remote access

I don't know if this is possible. I'm hosting a web farm on raspberry pi (for fun). And one of them is at friend's house. I can access the pi remotely using VNC. How can i prevent my friend from ...
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205 views

Using NFC chip PN532 on RPi 2 model B

First of all, please bear with me as I'm very new to electronics! I'm trying to scan NFC tags with my Raspberry Pi and use that (ideally) from a NodeJS project. The NFC chip I bought is this one (it'...
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1answer
1k views

Wanted - chat script for Huawei E8372

I've just acquired a "Huawei E8372" USB dongle. I'm trying to connect to Tesltra (Australia). I switched off the wifi function of the dongle. I've managed to get the dongle recognised as /dev/USB1 ...
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31 views

RPi 2 and 3.95 TFT

I have tried as per RPi 2 and 3.95 TFT ili9488 comment, But it is not working with my Raspberry Pi (Ubuntu Mate OS). What can i do to work my display with RPi 2 and 3.95 TFT with ubuntu Mate os??? ...
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1answer
453 views

Raspberry Pi Camera(8 MP) shows blur images in Android Things installed on Raspberry Pi

Raspberry Pi Camera(8 MP) shows blur images in Android Things installed on Raspberry Pi. I use the code from Google Sample -- Doorbell application and capture the image but Image is too blur (Camera ...
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2answers
385 views

Issue with multi-user NAS setup

I want to build a NAS server with multiple users. To test this I created 2 users, pi and pi2. The external drive is mounted in /media/pi. Here is the ls -al output: drwxrwx--x 4 pi nasusers 4096 ...
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62 views

My Rasberry Pi do not let me install software because I don't have permission to write

When I want to install a package or do an apt-get update, the system returns an error like (read-only file system) can you help me please. I have Raspbian Stretch Lite. I did not download other ...
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0answers
529 views

How to Read LDR Input with Raspberry Pi's GPIO Pins in C? [closed]

Using an LDR and the below circuit diagram, I am trying to read the amount of light that the LDR is receiving. My primary goal is to detect a change when an object passes over the LDR to trigger an ...
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146 views

Can't connect to Nginx webserver on LAN

I cant connect to my Nginx web server when on my LAN, I have tried using both the internal and external IP's to do this I keep getting told connection refused. By this I mean that if I try to connect ...
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1answer
22 views

Connecting a Compaq CQ56 screen to a raspberry Pi

I've got this laptop in pieces, a Compaq CQ56. I want to take the screen and connect it to a raspberry Pi to make a interactive mirror like so many tutorials show. On the back of the screen it has ...
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0answers
304 views

bridge wlan0 to wlan1 to act as repeater

I know, this has been asked many times, but I can't find any satisfying answer given. This is the idea, the circles around the devices are the wifi range: I have a raspberry pi 2 model B with 2 ...
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1answer
1k views

Windows 10 IoT for Raspberry Pi on Hyper-V - black screen

I want to run Windows 10 IoT Core for Raspberry Pi on virtual machine to check how it works before I will buy my first Raspberry Pi. To start I used this tutorial: https://github.com/agaboduarte/...
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3answers
676 views

How to make Raspberry shutdown when internet/lan disconnected

I've already seen this link How to make Raspberry shutdown when I unplug the ethernet cable, but this solution does not work on Raspbian stretch since its network interface file/folder structure is ...
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0answers
42 views

script not working when on reboot, but when I power off/on it's working fine

I wrote a script which is scheduled for a cron job at reboot. This script changes the wlan1 from Managed to Monitor mode. but when I reboot the pi, this script doesn't work and writes the error ...
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0answers
77 views

Using Ethereum puppeth in raspberry pi

I have installed geth(go ethereum) client on a Raspberry Pi 2 using the below steps. wget https://gethstore.blob.core.windows.net/builds/geth-linux-arm7-1.8.2-b8b9f7f4.tar.gz tar -xvf geth-linux-...
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1answer
637 views

Does Turning The GPIO Pins On/Off Without Any Circuits Connected Harm the Raspberry Pi?

So, i'm just getting into raspberry pi and I am yet to have my order of circuit parts such as LEDs and resistors arrive. My question is that if I turn the GPIO pins on without any circuits attached ...
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0answers
145 views

is there any way to fix this issue?

pi@raspberrypi:~ $ raspistill -o image.jpg mmal: mmal_vc_component_enable: failed to enable component: ENOSPC mmal: camera component couldn't be enabled mmal: main: Failed to create camera component ...
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1answer
48 views

how to setup micro phone to raspberry pi [closed]

i want to setup a microphone to raspberry pi and record a audio signal for 5 sec when baby starts cry. how the setup should be done? the microphone should record when baby starts crying.
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0answers
47 views

Power supply or pi card?

I have a pi sd card with raspbian on it. The version of the Raspberry Pi I am using is the Pi B 2 When I tried to boot it up with a normal power supply (micro-usb) it started to boot fine, but it got ...
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1answer
53 views

Raspberry Pi boot and work perfectly as server with Rainbow screen

I searched for an hour and every problem about the rainbow screen is related to a boot problem. Not for me, I have no boot problem! In my case, my raspberry pi 2 is working perfectly as a server, ...
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2answers
4k views

RabbitMQ Server Installation

I would like easy installation instructions for RabbitMQ Server on my Pi. I tried a lot of things from various sources and they just don't work. One source even said RabbitMQ Server is pre-installed ...
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1answer
1k views

Green image with rpi picamera

The following code generates a green image in raspberry pi with picamera. import picamera with picamera.PiCamera() as camera: camera.resolution = (1280,960) camera.exposure_mode = '...
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1answer
644 views

RPi as VPN Gateway

I have been trying to setup a Raspberry Pi as a "Gateway" to my VPN server, even though I am not a sysadmin, I am usually fine with setting up software such as NGiNX however this has taken a lot of ...
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0answers
2k views

Raspberry Pi SMBv2

I'm trying to setup an SMB folder share from a Raspberry Pi 2 Model B that I can access from Windows 10. When trying to connect from Windows, I'm getting the below. Obviously I could just enable SMB1 ...
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4answers
10k views

Accessing the system log on Raspbian

How do I access the system logs in current versions of Raspbian? Where are these logs stored?
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1answer
371 views

create exact number of pulses in raspberry pi with DMA library to control industrial Delta Servo Motor angel and rotation [closed]

i want to control exactly how mush my servo rotate through DMA like pigpio with raspberry pi so i need to create exact number of pulses for servo . is there anyway to create exact number of pulses ...
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1answer
74 views

Software for compressing files in Rasbian [closed]

I am trying to compress a folder of many files into a tar.xz format. Does anyone know of some good software that does this job in Rasbian on a Raspberry Pi 2 B?