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8 views

wireless display for MAC

I have a MAC and I am looking to add two additional displays to my laptop without having to run cables to it. Is there an app or something I can install on my Raspberry pi to be able to use it as a ...
0
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0answers
11 views

ssh.service keeps restating forever

On my rpi machine pi@pi2 ~ $ lsb_release -a No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.9 (stretch) Release: 9.9 Codename: stretch I ...
0
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0answers
7 views

raspi 3b+ connect to secured wifi through powershell

I'm trying to connect my pi to a secured network through powershell. I connect from my computer to my password enabled wifi. I get the wifi profile from my computer and copy it to the pi. I then add ...
2
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0answers
12 views

Second WiFi adapter for the Raspberry Pi 4 B

I need a second WiFi adapter for the Raspberry Pi 4. For RPi <=2 (without integrated WiFi) and with RPi >= 3 the chipset BCM43143 was recommended. Does this still apply for the RPi 4? Can I only ...
1
vote
0answers
21 views

Auto-execute desktop shortcut problem

I have created file /home/pi/Desktop/DecoderPro.desktop with the contents [Desktop Entry] Type=Application Encoding=UTF-8 Name=DecoderPro Comment=JMRI DecoderPro Icon=/home/pi/JMRI/resources/...
0
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1answer
17 views

Create Wifi network without Internet Connection and perform WIFI Switch

I would like to create a wifi network which does not have access to the Internet - that should not be a problem as there are plenty of posts already on Stack Exchange covering this topic. However, ...
0
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0answers
12 views

Raspberry pi 3b + not booting up after connecting with Raspberry pi Camera

I am using Raspberry Pi 3 b+ for 3 months. I connected the pi using laptop Ethernet SSH connection. Yesterday i connected raspberry pi camera to the raspberry pi and enabled the interface setting ...
1
vote
0answers
8 views

set ppp0 as default gateway permanently

I have a Zero W with a 4G module, to use the sim to access internet I did: pi@raspberrypi:~ $ ip route default via 10.111.100.1 dev wlan0 proto dhcp src 10.111.100.143 metric 302 10.64.64.64 dev ...
1
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0answers
8 views

Allow a flash player automatically in chrome web browser in raspberry pi 3

0 I want to play an IP Camera in the chrome web browser using raspberry pi 3 automatically (when I start my raspberry pi 3) that is already I have done this. But when I reboot pi 3 and when the web ...
1
vote
1answer
29 views

What is the hottest part, under light load?

For a hobbyist weather station project I am going to use a Raspberry Pi and a Si7021 temperature/humidity sensor. If possible, I want to use one of the available casings, and enclose my Pi and the ...
0
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0answers
11 views

Raspberrypi 3 reactive LED with omxplayer audio output

How can I setup the reactive led with auto brightness as per the frequency of output video sound played using omxplayer?
1
vote
1answer
7 views

Arch Overscan Screen Slanted

Recently I have attempted to install Arch Linux on my Raspberry Pi 3B for a small project. After installation of the OS according to https://archlinuxarm.org/platforms/armv8/broadcom/raspberry-pi-3, ...
1
vote
0answers
20 views

How to make a splitter cable for the USB2 OTG port on the RPi 4B?

According to the answer to Where is the USB2 OTG port on the RPi 4 Model B located? the Raspberry Pi 4B has a "hidden" OTG port in the USB-C power connector. My first idea to use this port was to ...
0
votes
1answer
27 views

launch program after network up with Stretch

I'm looking for a solution to launch a program when the Raspberry boot, but i need to have an internet connection before launching this program. I saw few exemple with post-up command in interface ...
1
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0answers
23 views

Can i play a 16-bit WAV in raspberry pi 3 b+ with PWM?

I have a 16-bit WAV file, the header of the file as below: WAV header Information: RIFF : RIFF Chunk Size : 5719002 Format : WAVE Sub-Chunk 1 Information: Sub-Chunk 1 ID : ...
-1
votes
0answers
21 views

Convert this into a script

How can i make a test.sh using the code below and run it from command line in retropie 4.4 fdupes -d -noprompt /rom1 /rom2
2
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0answers
21 views

Microphone is not recording with HifiBerry and Raspberry Pi 3

I installed the HifiBerry driver as specified. The Board is recognized and the audio output works fine. Just the audio input seems to be not working. I checked if the microphone is muted but I can't ...
1
vote
0answers
15 views

Installing Etcher and Octopi: Unable to to Unzip and Install either of these programs?

So I have received my Raspberry Pi 3 B+ in the mail. Plug it in and hook it up. Everything works awesome up until this point...I would like to mention that I have been a Windows user my whole entire ...
0
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0answers
19 views

Best way to read multiple rfid sensors

I need to get information from five arduinos to a raspberry pi. What is the best way to read multiple rfid sensors? I have a few arduinos and can buy more. I want to read at least five rfid sensors ...
-1
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0answers
18 views

Can I install own system on NOOBS?

Can I add own systems to NOOBS? I want to install many of systems, and I don't know how to do that.
0
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0answers
9 views

Error running option 8 update while Raspberry Pi connected with Laptop through ethernet cable

I have connected my Raspberry Pi 3 with laptop through Ehernet cable( have used Mobaxterm as a free X server ). While using the Raspberry PI command, there is no response so I used the command Sudo ...
2
votes
2answers
385 views

GPIO and Python - GPIO.output() not working

I want to program a simple thermostat, but for some reason the commands GPIO.output(21, 1) or GPIO.output(21, 0) do not change anything. In a similar vein, GPIO.setup(20, GPIO.OUT, initial=0) does ...
0
votes
0answers
12 views

MCP3008 sharing power supply with low-noise DAC

I'm designing a low-noise audio gadget that uses an MCP3008 ADC (for sensors) together with a Raspberry Pi and a PCM5102a high quality DAC. The PCM5102a is powered by a 3.3V LDO. I'm wondering if I ...
0
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0answers
11 views

Minecraft 1.7.10 + forge

How do I install minecraft 1.7.10 and forge on a raspberry pi 3. Since I have this friend who wants me to install 1 mod to play on his server.
1
vote
1answer
48 views

Connect to Wifi for 10 minutes then disconnect

I use one of my Raspberry Pi as a headless desk clock and, apart from a reboot once a day which forces the OS to synchronise time to an NTP server, I would like to turn the WiFi off after that stage ...
5
votes
1answer
49 views

What's different about a crontab reboot?

I have a python script to log data from a USB weather station and present it via a flask front end. The USB on the pi (Pi2 model B) is flaky and occasionally hangs after 24-48 hours. The flask app ...
1
vote
3answers
38 views

How can i clear my raspberry device

Am not able to get enough space that is am only getting just 1.3GB free even after deleting all the contents which a having a total to 8GB
3
votes
1answer
180 views

What's the difference between soft PWM and PWM

What's the difference between soft pwm and pwm(maybe hardware pwm) in raspberry 3 b+. From the pinout (https://pinout.xyz), it seam that there are only 2 pwm pin, pin 32 for pwm0 and 33 for pwm1. But ...
0
votes
0answers
7 views

Rasberry pi 3 b+ 1up arcade how do I change emulators automatically

Mame from 2000 to 2016 installed now if I load a rom then it jumps back to dash screen is there a script to auto load next emulator and try it. I wanted a script that will auto test next emulator and ...
2
votes
1answer
20 views

Menu bar flashes then disappears

I have built a new image on a RPi3B+ with Noobs using the latest Raspbian which I believe is named Buster. I uninstalled libreoffice (for space) and have installed various python libraries and the ...
0
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0answers
17 views

Minecraft 1.12.2 Issue

So minecraft was working properly until I Tried to install forge. Here is the error message/log/crash report ---- Minecraft Crash Report ---- // Don't do that. Time: 7/13/19 10:48 PM Description: ...
0
votes
0answers
21 views

Dbus doesn't initialize properly at boot in python script

I have a raspberry pi 3 B+, a raspberry pi Camera, and a robot named Thymio-II. I have a python script that launch at boot, this script lauch a tornado website server and initialise the connexion with ...
1
vote
0answers
12 views

How do I run retropi when my raspberrypi is connected to my mac via ethernet?

I am new to this so sorry if this is a stupid question. I'm trying to start the retropie desktop screen, but I'm a bit lost on how to do it. I have installed the retropie disk image to the micro sd ...
0
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0answers
17 views

Tool to monitor pi performance/resources via website?

Is there a tool for the raspery pi to monitor cpu, ram, storage, resources ... sys health etc. via a web gui?
1
vote
1answer
29 views

Minecraft on Raspbian Buster

I have a Raspberry Pi B which is running Raspbian Buster (installed through NOOBS). I am trying to run Minecraft on it. I have downloaded the Pi version of Minecraft from the Minecraft website, ...
0
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0answers
13 views

How to resolve cmake error? [on hold]

I got error [module/videoio/cmakefiles/opencv_videoio.dir/build.make:115 : modules/videiio/cmakefiles/opencv_videoio] g how to resolve it?
2
votes
0answers
33 views

How to verify id of installed firmware?

The release notes for example to date 2019-07-10 shows * Linux kernel 4.19.57 * Raspberry Pi firmware cb3a32adf39f45a49be454e30c7464920ad7c605 After an update I can verify the current kernel version ...
0
votes
1answer
73 views

Is default pwm frequency 19.2Mhz in raspberry 3+?

But when i set clock to 1920 and range 200, I got the frequency 5KHz rather than 50HZ from oscilloscope, does anyone explain that, what's the problem. Thanks my code as below: #include<stdio.h>...
0
votes
0answers
19 views

Can' set up my wifi - my wifi is redirecting to an IP to enter User Name and password

when I connect to my student dorm wifi network over my laptop it opens a browser window and redirects me to an website where i must enter my user name and password to connect to the internet. I was ...
0
votes
0answers
16 views

Raspberry Pi 3 will not display to HDMI monitor nor ssh

I have Raspbian 9.9 installed on the SD card which runs fine and displays to my monitor via DVI to HDMI adapter. I formatted a 1TB SSD to ext4 and followed the https://pimylifeup.com/raspberry-pi-boot-...
-1
votes
0answers
23 views

Raspbian retains last uuid ownership at mount, but where ? [Raspbian Stretch]

The following commands give user user2 rw acces to an external usb drive : sudo mount /dev/sda1 /home/user/mnt/my_mount sudo chown user2:user2 /home/user/mnt/my_mount Command umount sets ownership ...
1
vote
0answers
22 views

Why does usb drives autmount only for pi? [Raspbian stretch]

Attached usb drives are automatically mounted in /media/pi/ What makes that they automount in that directory ? Obviously this is configured somewhere.. What would be the way to customize this ? ...
0
votes
1answer
25 views

Create a VPN tunnel on a cellular Pi that is working as a hotspot

I have a Raspberry Pi 3B+ which is working as a hotspot using a Hologram Nova usb modem where it receives Internet from and routes the internet through WiFi and Ethernet. I have realized that the ...
0
votes
0answers
20 views

Headless transfer of files

Is there anyway to use the raspberry pi headless but as you plug in a storage device it transfers the files directly into the pi? (Note: it should actually move the files not copy them.)
0
votes
1answer
28 views

Booting Alpine linux on Raspberry Pi 4

has anyone had success running Alpine Linux on the Raspberry Pi 4? I have copied the contents of the Alpine release for rpi 64bit from here to an SD Card formatted with FAT32, but I only get to the ...
0
votes
0answers
12 views

Has anyone used spidev library with python 3?

I am currently trying to interface a RPI 3B+ with a flash memory chip using SPI communication. do anyone have a good resource for using SPI communication with memory? What language should I use. I ...
0
votes
1answer
12 views

/etc/init.d/lirc doesn't exist

I am working on creating an IR remote for an older TV using my GPIO, primarily using this tutorial http://www.raspberry-pi-geek.com/Archive/2015/10/Raspberry-Pi-IR-remote#article_l1. However, when I ...
-1
votes
0answers
28 views

If I log out of Raspberry Pi, will I go back to Android? [on hold]

I am going to use an Samsung S9 Plus and I am wondering if I can go back to Android OS after using Raspberry OS.
0
votes
0answers
10 views

Can I use raspberry pi shields on orange pi? [on hold]

Can I use any raspberry pi shields on orange pi ? How about 4G shield ?
1
vote
2answers
21 views

ufw and iptables on buster

I've got a RPi4 and I'm trying to configure ufw. The problem is that I get this error ERROR: Couldn't determine iptables version The versions of iptables and ufw are iptables 1.8.2-4 ...

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