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.
0
votes
3answers
19 views
Raspberry pi weather station dampness
I am setting up a rpi weather station with several rpi 0's (one for each sensor) and a main rpi 2 (for the data collection and storage). Does anyone have any ideas on how I can go about damp proofing ...
1
vote
1answer
8 views
What is the pixel format for Raspberry Pi framebuffer
Good afternoon,
I'm trying to programmatically display an image to a 3.5 inch TFT display mounted on /dev/fb1 using the following code:
Using trial and error I determined the pixel width to be 16 ...
-5
votes
0answers
36 views
Raspberry Covert listening device [on hold]
Raspberry Covert listening device
Its possible ? I need a tutorial please
0
votes
1answer
18 views
My Raspberry Pi B+ has the Ri 2 B pinmap
I trying out different java programs for my RPi B+ V1.2 and as far I have only tried to blink with a lamp for a few seconds. It works.
Now I want to try to blink with a lamp by using a button. In ...
0
votes
0answers
24 views
Change hard corded MAC address
Is it possible to change a hard coded MAC address ?
I bought a TP-Link tl-wn722n WiFi Adapter but I can't change the MAC address. (Raspbian, Raspberry Pi 2)
I tried several methods, also macchanger ...
1
vote
1answer
16 views
GPIO.input(24) is coming back True when it shouldn't be (false button presses)
I have a button in a working circuit. Within sys/class/gpio/gpio24, value changes properly (it becomes 1 when pressed down, 0 otherwise).
When I use GPIO.setup(24, GPIO.IN) within python, GPIO.input(...
1
vote
1answer
22 views
Can't connect via SSH to RPi2
I have searched for old topics but I can't find anything that could solve my issue.
I have installed Ubuntu MATE on SD card and created the ssh file on the boot\ directory. I connect the RPi2 ...
1
vote
1answer
28 views
read-only filesystem after reboot..can't seem to find a straight answer hot to fix?
Im new to rasbery pi.. i would like to get my PI back to normal without having to reinstall everything!(next time ill back up or use puppet.)
I ran:
sudo fsck -n -f
i got the below:
Journal ...
0
votes
1answer
23 views
Convert existing Raspbian image to NOOBS image?
I currently have an SD card with a Raspbian (Stretch) install, a whole bunch of files, an OpenVPN server, etc. However, I would like to run Kali Linux and LibreELEC on it as well. Is there any way I ...
1
vote
0answers
25 views
Windows 10 IoT not updating with windows update
Why is my windows update stuck on downloading updates? How do I kick it along?
From the apps menu I select Windows Update tile.
I then have the following screen which I have left on overnight and ...
0
votes
0answers
29 views
Is there a limit on Raspberry PI's display size?
I have been using Raspberry PI 2 and 3 for the last year and a half with no problem. However, over time I have noticed that different sizes of display connected to the PI effected how my software ran. ...
0
votes
0answers
22 views
Interfacing Big SpaceBar Button with Raspberry Pi & perform certain task on pressing [closed]
I am working on a project in which I have to play 5 mp3 songs in a sequence one after another. Each song has a duration of 10s. For that purpose, I am using pygame library.
All is working fine but I ...
0
votes
0answers
29 views
How can I capture video from CCTV camera and send to a streaming server? [closed]
I have 4 mobile van running throughout the city. In each van I have a raspberry pi connected to wifi and a CCTV camera. How can I deliver the video to a streaming server?
Streaming server has a public ...
3
votes
1answer
140 views
Multiple /etc/rc.local?
I run a Python program in a screen session which is started from my /etc/rc.local with this command:
su me -c "screen -d -m /usr/bin/python /mnt/usbdrive/pgms/mypgm.py"
Recently my program has been ...
0
votes
1answer
33 views
Pi 2B, Under-voltage detected!, no lightening bolt, +5 is rock solid at 5.01VDC
This is a weird one - have had 2B in service for three years, but it crashed last week. Rebuilt with a new Pi 2B+, but saw undervolt errors on the rebuilt system that would have gone unnoticed, so ...
0
votes
0answers
31 views
Remote debugging a python script fails
I am running into problems with remote debugging a Python script on a Raspberry Pi 2 Model B Version 1.1, where I followed the advices in this blog post.
The script basically starts with
import ...
0
votes
0answers
22 views
RFID Module (EM18) interfacing!
I have the hardware setup shown in the picture below. The RFID reader module is connected to a usb to serial converter. The converter has pinouts for Tx, Rx, PWR OUT and GND. How can I use these to ...
0
votes
2answers
24 views
Is it possible to find the current sampling rate of MCP3008? [closed]
I am using MCP3008 with Raspberrypi Model B. MCP3008 is sampling the analog signal. But is there any way through which I can verify if it is correct or not. For example, I need a sampling rate of 1.5 ...
0
votes
0answers
18 views
Is it possible to use half the screen as touch screen and the other half as a waveform display pane?
I am using waveshare 3.5 inch RPi LCD (A). Is it possible to use it as just a display for waveforms and half the screen of it responsive to the touch?
0
votes
0answers
17 views
Raspberry Pi 2 has started crashing
I have a Raspberry Pi 2 that has a temperature/pressure/humidity sensor. I've been following along with the build your own weather station project. I don't have the rain or wind sensors up yet, just ...
0
votes
0answers
17 views
Raspberry connecting with nfc(mifare). How to translate csv from UID？
At first , my English is very poor.
Sorry for that.
Now,I' m connecting raspberry pi zero and RC522.
I wanna translate UID characters to csv.
Below is using sample program.
So,Please tell me where ...
0
votes
1answer
43 views
.asoundrc file is rewritten on each boot
i read all of the posts here and commentated on one of them but comment was deleted as it was a question i guess, so i mage my own now, sorry for that...
Ok the problem:
USB sound card mic is not ...
0
votes
2answers
52 views
Raspberry PI convert into a switch
I would like to know if it is possible to make raspberry pi work as an Ethernet switch?
@jsotala. Thank you for the advice. Basically I am not considering using the readily made switch from the ...
0
votes
0answers
35 views
Getting USB network adapter to work on minimal Raspbian install (RPi 2 B+)
I just installed raspbian-ua-netinst-v1.0.9 on my Raspberry Pi 2 B+. I want to set up a WiFi hotspot on the pi, so I found a Belkin F5D7051 Wireless G+ Adapter and plugged it in. I followed 5 or so ...
0
votes
0answers
27 views
Fast Raspberry Pi Capture with Processing
For a project I am working on I want to be able to take a picture with the picamera V1, do processing on this image, and then do this process again and again as fast as possible.
I am currently using ...
0
votes
0answers
20 views
Error connecting to Raspberry Pi 2 using xrdp
I have Fedora 28 MATE installed on a Raspberry Pi 2. I have xrdp installed and started/enabled on the pi, and have opened port 3389/tcp in the default firewalld zone. I am trying to connect to the ...
3
votes
1answer
148 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 ...
0
votes
0answers
34 views
How to find out on which RPi board version the sw is running (Windows IOT UWP)
How can I get a string with the RPI board version like:
Raspberry Pi 2 Model B etc. in Windows IOT (C# UWP)?
0
votes
1answer
59 views
wifi not working in raspberry pi 2
I want to setup multiple network for wifi. One for my home and another for my office. I took the reference from stackoverflow but it did not work in mine. It works if i use the ethernet but not when ...
2
votes
2answers
58 views
why GPIO.LOW is used to turn the switch on?
I am learning raspberry pi and somewhere i found the tutorial of turning the bulb on when clap is heard and off the bulb when clapped again. The following code was written for this to work
#!/usr/bin/...
0
votes
0answers
30 views
using rpi + laptop touch screen [duplicate]
my old hp touchscreen x360 laptop (hp n-11-010dx) died and I managed to salvage the screen / display assembly. I want to be able to use the screen with my raspberry pi 2, but also maintain touchscreen ...
0
votes
0answers
25 views
listen for sensor continuously when using django as a server
I have developed a smart bulb using relay to switch the bulb on and off when I clap. This works with a simple python script but that i want to use django as a server for handling this use case. I ...
0
votes
0answers
21 views
Install ubuntu from live mode
I've started the linux ubuntu mate on raspberry pi skipping the install step and entering in live mode. Now i want to install on microsd but i can't find where to start the installation. I don't want ...
0
votes
0answers
15 views
No sound through headphones using libreelec
I have set up libreelec so it can play videos on my pi 2 that is connected to the official touchscreen, however, there is no audio output. I have set the audio to output to the analogue output in ...
0
votes
1answer
64 views
Is it okay to power the Pi Touchscreen by plugging into the Pi?
I have the official raspberry Pi 7 inch touch screen, and I have mounted to it a Pi 2. Lately I have been using it and I have been plugging the power into the Pi itself. I however recently remember ...
0
votes
1answer
26 views
small sound sensor not detected
The usecase of my project is when I hear the sound of clap then only the relay channel should get triggered. But in my case, the GPIO.input(SOUND_INPUT_PIN) is only giving me value 1(HIGH). The ...
1
vote
2answers
79 views
Raspberry Pi 2 hangs during Windows IoT boot
I've downloaded the Windows 10 IoT Core Dashboard and set up an SD card according to the instructions on that site. When booting my Raspberry Pi 2 from the SD card the Windows logo shows up with the ...
1
vote
0answers
32 views
Raspberry Pi 2 B V1.1 NOOBS 2.8.2 and raspberrypi-kernel (1.20180619-1 => 1.20180703-1)
Is there a known problem with the title hardware and software combination?
I installed NOOBS 2.8.2 to build the base system.
When I run apt-get clean, update and upgrade, the raspberrypi-kernel ...
1
vote
2answers
57 views
Raspberry Pi DC Motor Not Working
So, I am attempting to control a DC motor using a RPi Model 2B. I am using a l293d motor driver to try to control the motor and a 4 AA battery holder. The diagram is supposed to look like this ...
0
votes
0answers
22 views
How to create installer files in Raspberry pi
I have created a program in Raspberry pi and I am running it using the command python myprogram.py . Is it possible to create the installer file of this program? that means after installing this ...
1
vote
2answers
47 views
Raspberry Pi Error: AttributeError: module 'l293d.driver' has no attribute to 'motor'
So, I am trying to use my RPi model 2B to control a DC motor with an l293d controller. I have moved onto the python3 script and imported the 'l293d' module. Here is my code...
import l293d.driver ...
0
votes
1answer
76 views
Read GPIO pin on web page
I was able to control an led from a web page using the following code. when I call http://myip/pinon.php it will light up the LED and http://myip/pinoff.php will turn off the LED.
pinon.php
<?php
...
0
votes
1answer
40 views
Can I modify an RPi2 image to boot on an RPi3 B+?
I have a Raspberry Pi 3 B+, and none of the operating systems that usually work on the RPi 3 will boot. I've done a small bit of research, and I think this has something to do with an outdated ...
1
vote
0answers
48 views
hostapd.service not found
I am trying to make a Raspberry Pi 2 as a wifi access point in a standalone network.
I followed this tutorial: https://docs.google.com/document/d/16hJS7fnPyKUwbvR33_nMku_b6XcYaBJXVpeCIMoJzcQ/pub
At ...
2
votes
0answers
145 views
PI4J + Adafruit LCD with MCP23017
Got this device.
Python example char_lcd_plate.py is working perfect.
But I would like to manage it with Pi4J.
I copied bits from python example
LCD_PLATE_RS = 15
LCD_PLATE_RW ...
0
votes
0answers
53 views
Shown cursor in Chromium Kiosk
How can i display the cursor in Chromium Kiosk? Because my cursor is hidden. I can't do anything such as controlling the mouse.
I use Raspberry Pi 2 running Rasbian.
0
votes
0answers
35 views
Raspberry pi 2 to Windows 10 SFTP/SSH
I am trying to connect my windows 10 pc with raspberry pi 2 using python script.
What I want to do: I want to download the file from windows 10 machine with the help of python Script from raspberry pi....
1
vote
1answer
43 views
RaspberryPi 2 GPIO stopped working
I have RaspberryPI with Arch Linux and everything was going well, until this morning when I tried to do my usual work on it, it sounds like nothing happening at all, I have checked with pintest (I use ...
0
votes
1answer
205 views
Raspberry Pi Login Screen Change
I am pretty new to raspberry pi. I was trying to change the login screen of raspbian in my native language. Can anyone please suggest how can I do that?
I already installed unicode library, installed ...
0
votes
0answers
21 views
log TTL event time along with frame timestamp using picamera python library
I am using picamera library to store the frame timestamp along with the video. Next, I am sending square TTL pulse to the raspberry pi GPIO pin with the following signature: 1 second ON, 1 second OFF, ...
