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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7answers
14k views

Raspbian wpa_supplicant problem

My old wpa_supplicant and interfaces config not work! /etc/wpa_supplicant/wpa_supplicant.conf ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 network={ ssid="MySSID" ...
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2answers
2k views

Fire OS on RPI?

Has anyone tried to create any sort of file that allows Fire OS(Amazon's Fire operating system) to run on the rpi? I can't seem to find any sites on google that provide the necessary files.
3
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1answer
941 views

Where is my SQLite database location on RPi2 SD card (Windows IOT OS)?

My SQLite project is working on Raspberry Pi 2 (with all function insert, delete, update ..) but where are my SQLite database files located? I followed this way I found my SQLite database location on ...
3
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1answer
2k views

Migrating SD from Raspberry 1 B+ to Raspberry 2 microSD

I have and old Raspberry 1 B+ with a normal SD card (60 GB), then I purchased a new Raspberry 2 with a 60 GB microSD card. I have followed this tutorial to completely migrate the Raspbian OS and its ...
3
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2answers
18k views

Dnsmasq DHCP not giving IP address

I have bought a RPI 2 for my 3D printer. My purpose is to access it remotely via wifi. I don't have a router, so I have created an Access Point on the RPI. I have also installed dnsmasq as the DHCP ...
3
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1answer
186 views

Using I2c port as standart GPIO

When I try to use I2c1 SDA pin (GPIO 2 BCM number) via GpioController::OpenPin() func, it compiles OK but it throws an exception HRESULT:0x80070490 Element not found. How should I use I2c pins as any ...
3
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2answers
1k views

RPi2 raspbian I2C error - BMP180 sensor

I am having a lot of trouble getting the RPi2 to recognize the sensor, even after configuring the I2C for the RPi and following the guide several times. Running: sudo i2cdetect -y 1 outputs that ...
3
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1answer
5k views

Run Windows XP in qemu on Raspberry Pi 2

It's possible to run Windows XP in qemu on Raspberry Pi 2? Loading Windows XP would be very slow?
3
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2answers
1k views

Powering several LEDs from GPIO output

I'm currently working on a "rotating cube" project where a raspberry pi will be used to determine which cube face is at the top and any given time using an accelerometer and light it up with LEDs. So,...
3
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1answer
2k views

VPN Passthrough two ethernet interface

I'm a quite new in the network my internet acces have a proxy so to by-pass it I use a VPN hosted on my VPS. I use the OpenVPN Client software for all my devices. (Windows, Android, Linux) I got a ...
3
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1answer
358 views

My PIR sensor seems alittle keen to sense things

Before you tell me answers for my issue already exist I'd like to mention that I have checked previous answers and where similar issues have occurred I have tried to use their approved answer. So far ...
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0answers
480 views

Disable Screensaver of XServer on Raspbian Jessie Lite

I setup a Raspberry Pi 2 with Raspbian Jessie Lite in read only mode. To run a Qt application I installed the packages "xserver-xorg" and "xinit". I am starting the application automatically after ...
3
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1answer
188 views

Can't find out why my program won't read analog values (Using MCP3004)

I am using wiringPi and C. I have a flame sensor and a MCP3004 ADC. Here is the program that I wrote, but I can't figure out why it won't read the analog values from the flame sensor. #include <...
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2answers
4k views

Not able to connect to WiFi

I spent nights trying to configure WiFi. I have edimax 7811un, RP2 with Jessie. What is this "unassociated" issue? Please don't post solutions older than 2016 because the newer versions of ...
3
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3answers
9k views

Raspbian does not get DHCP address

I've got a Raspberry Pi 2 running Raspbian (can't remember the exact date but it's something from early February 2017) and when connected to my router (TP-Link TD-W8970) it fails to get a DHCP ...
3
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1answer
325 views

How to use MATLAB at host PC with Raspberry Pi

I'm trying to connect MATLAB with raspberry pi 2 b+. have already instlled the raspberry pi addon on MATLAB at the host LAPTOP. The configuration - Matlab(Host LAPTOP)-<---->ETHERNET<---->...
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0answers
2k views

Pi 2 Windows IoT support for onboard CSI camera port

I am working on IoT technology, in one of my project I want to connect to on-board camera with Raspberry Pi 2 having Windows 10 IoT core. Two months back I found Windows IoT on the Raspberry Pi 2 ...
3
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0answers
2k views

Arecord not working with USB Microphone anymore

Before I start, I'd like to tell you that I've used arecord in the past with the Raspberry Pi 2 using the same USB Microphone and it has worked just fine. For some reason, it doesn't seem to work ...
3
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2answers
966 views

successfully paired bluetooth apple keyboard with Pi but can't type

I successfully followed all the instructions here http://www.adeepbite.com/apple-bluetooth-wireless-keyboard-trackpad-raspberry-pi/ to link a Bluetooth keyboard to a Pi with no errors and I still can'...
3
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1answer
469 views

How to use PI4J with a brushless motor?

I have a Raspberry Pi 2 model B. I would like to be able to control a motor with a regulator and PI4J. I put the black cable to a ground pin and the PWM pin to pin 26. I've worked with servos before, ...
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0answers
203 views

How Can I Properly Ground My RPI To Avoid Static Interference?

I have researched every where for this problem and cannot find a direct answer. I am currently working on a project which involves a large 20ft conveyor belt transferring product into a Plexiglas box ...
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0answers
820 views

Using I2S microphone with Raspberry Pi [closed]

I have a microphone with I2S output and I am trying to record audio with it, using the Raspberry Pi (2 model B). I'm having trouble getting the microphone to work. Does anyone have working code for it?...
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0answers
2k views

Pi 2, keyboard/mouse not recognized through USB hub

I am trying to get the keyboard and mouse control from a Startech crash cart adapter working smoothly on a Pi 2. The adapter has an internal USB hub (Alcor, 058F:6254) and behind that a virtual ...
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0answers
533 views

Modbus on Raspberry Pi

I am quite new to Raspberry Pi and Modbus. I am going to implement a Modbus RTU on Raspberry Pi using libmodbus. I followed this totorial as a simple Modbus test, but when I compile the bandwidth-...
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8answers
4k views

Can RPi2 be used as an IP cam viewer?

I want to monitor my IP cam on my TV (both set to 1920 x 1080p). Since the IP cam uses ethernet and the TV has HDMI, I'm hoping my RPi2 will be a suitable interface. At this point, I'm unsure of my ...
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0answers
257 views

External HDD stopped mounting automatically in Raspbian

In Raspbian I used to be able to just plug in my external HDDs and they would be detected I could then find them in /media/ using WinSCP and transfer files to them. I haven't used Raspbian in a ...
3
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0answers
517 views

Raspberry Pi 2 and JavaFX8: Can't render small images without more GPU RAM

I'm trying to write a simple FX8 image display program on the Raspberry Pi2 without increasing the GPU memory beyond the default 64MB. I seem to get me a NullPointer Exception at com.sun.prism.impl....
3
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0answers
120 views

crackling sound RPI2 analog output [duplicate]

I am using a RPI B 2 with OSMC as a media player for video and sound content. I have an amp connected via the analog 3.5mm jack output of the pi. When the audio volume of the pi is relatively low, ...
3
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0answers
783 views

How to boot Ubuntu 14.04 for Raspberry Pi 2 under qemu?

There's an Ubuntu image for the Raspberry Pi 2 here: https://wiki.ubuntu.com/ARM/RaspberryPi I'd like to boot this image under qemu. I'd like to do it so that I can have some virtual build systems as ...
3
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4answers
21k views

ImportError: No module named GPIO

I have install RPi.GPIO 5.3a from here: https://pypi.python.org/pypi/RPi.GPIO I ran the next code: sudo python setup.py install there are no fails on the installing. I will run the next script: ...
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3answers
6k views

Installing chromium on Raspbian

I was trying to install chromium on the RPi but it does not seems to be working. I am using a Raspberry Pi 2 Model B. This is what i typed: sudo apt-get install chromium ...and I got this error: ...
2
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5answers
452 views

Raspberry Pi 2 Functionality

Can you actually write a program to a Raspberry Pi 2 like we normally do with microcontrollers? I'm only seeing videos of Raspberry Pi's connected with a computer, and it seems like the actual program ...
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2answers
6k 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 ...
2
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3answers
13k views

Raspbian migration from Raspberry Pi 2 to Raspberry Pi 3

I have spent the past couple of months developing software on my RPi2 and I would like to now run this on my RPi3 to take advantage of the higher performance. The software I have written relies on ...
2
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2answers
2k views

Can I connect two Pi's through GPIO?

Say if I had one GPIO pin. Could I connect it to another pin on a different Pi and have it pick up the first pin's signal as input? Would I need to connect both Pi's ground pins to each other?
2
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2answers
2k views

How to operate a cooling fan using GPIO pins, RaspPi2

I have little to no experience with any form of computer software coding/editing but I have managed to get EmulationStation working (sort of) on my Raspberry Pi 2. I have a bought a fan and plugged it ...
2
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3answers
7k views

SSH to Pi through putty Connection Refused (Raspbian Wheezy)

I just got a RPi2 Model B a few weeks ago and just started to program with it. I am trying to connect to the Internet for the project I am doing. So the OS is installed on my SD the only problem I am ...
2
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4answers
781 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 ...
2
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2answers
15k views

How to automatically connect to Wifi on boot for Pi2?

I am using a Pi2 with Wifi USB Wifi Adapter. Every time I boot, I have to connect to the wifi manually by providing the password. Is there any way Pi2 can automatically connect to the wifi on boot? ...
2
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1answer
172 views

Is the Raspberry Pi safe

I just partnered with a company that is conducting a Facebook ad study. They sent me this CanaKit to attach to my computer in order to observe advertising info on facebook. I am not a programmer or ...
2
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1answer
355 views

Need help on GPIO pins for Raspberry Pi 2

I am new to electronics and Raspberry Pi 2. I am able to use GPIO PINS for sample operations, but I am not able to understand what's the use of the below pins and any example for them: PIN 3 GPIO02(...
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2answers
242 views

How do you connect 81 LEDs to as few pins as possible?

A friend and I are trying to make a chess board where you play against a chess engine. The move the chess engine plays is shown by lighting a few LEDs on the board and you have to move that piece to ...
2
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2answers
127 views

What are the differences in architecture of Model 2 and Model 3B+? (SD card not working in model 3B+)

I have two raspberries (model 2 and model 3B+) and two sd cards. I wanted to swap the cards. The card from model 2 is not recognised in model 3B+. There is no green LED which indicates that the ...
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3answers
5k views

How to install Google Cloud SDK on Raspberry Pi 2 Jessie

I want to install Google Cloud SDK as I plan to use Google Voice API for a speech recognition project. However, I would like to inform me about a proper installation process. I tried to follow the ...
2
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1answer
310 views

How did this ruin my pi?

Problem I have a 5 inch Waveshare Touch Screen. I was testing something today and had power going to the screen (not the pi) which is okay because they share power when connected correctly. I was ...
2
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3answers
265 views

RPI Forever On?

I have my RPI2 deployed as a receiver at remote location which is intended to be forever on. But after some 20-30 hours, it goes into some mode with just red light turned on(no green light blinking) ...
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2answers
1k views

Raspberry Pi2 not booting when I reference the USB drive by UUID (works fine when using /dev/sda1)

I am using a Raspberry2 with the root system on a USB thumb drive. It does boot correctly if I reference my USB drive by /dev/sda1: dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/...
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2answers
74 views

How can I implement event detection?

I want to implement a function that does not abort my program but wait until I press the button on channel 11. And start the program again. #!/usr/bin/env python import RPi.GPIO as GPIO import time ...
2
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1answer
3k views

How to configure RealVNC server to allow connection to other users than pi

I have a Raspberry 2 Model B with raspbian jessie and I have realvnc-server installed. I've created a new user in raspbian and when I try to connect remotely via VNC viewer with the new user, I get an ...
2
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1answer
3k views

Repair a Corrupted SD Card?

My Raspberry Pi SD card has gotten corrupted (possibly from accidently running a high amp current through the Pi) and I would like to recover some of the files. I have tried using several ext4 ...