Raspberry pi Definition and 33 Threads

Over the last few months I have had problems with certain applications on my Raspberry Pi 5. One application, FLDIGI, slowed the system to a crawl and was unuseable, although it ran well on a Pi 4. Another application, WSJTX, could not have its window resized or moved and would stubbornly...

Just wondering if anyone having experience with scsi / iscsi can help out ? I am trying to boot a set of raspberry pies from an iscsi target server I have set up on Linux Mint (Cinammon). The setup works fine for network booting via NFS so I think I have configured the tftp , dnsmasq and nfs...

A couple of years ago, I connected a USB printer to the USB socket on my broadband router. After a lot of trial and error (of which I remember no details) I was able to print from my windows laptop. Here are the port settings that currently work from the laptop: 1) Based on the above...

I don't have the menu item Evaluation > Debugger . Could it be a limitation of the Raspberry Pi version of Mathematica? Or are there other potential reasons for it? Can anyone with a RasPi using Mathematica check if they have the debug menu?

My Raspberry Pi 4 has a GUI widget that is supposed to let us specify WLAN settings on a per-SSID basis, but it doesn't work. (All SSIDs end up with the same setting). Some articles on the net say that one can modify the dhcpd.conf file with an entry headed by the SSID name and then put in...

I used GIMP to edit copies of certain cursor files called left_ptr and hand2 from the "cursors" folders within the theme directories /usr/share/icons/[theme name]/cursor. This was for the themes "Adwaita" and "DMZ-white". Then I renamed the original cursor files and put the new edited versions...

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Hi, I am trying to think how to make a DYI volume knob to control variable actions on my audio card. But I don’t want one with buttons to toggle the actions.. instead I want to make one with a touch sensitive lcd screen and make the scroll knob (a físicas one) around the screen bc I want to use...

For a project that I'm making it has a raspberry pi 0w as its cpu for running autonomously, But I want to make use the raspberry pi 0w as the receiver as well. The range needed is about 3000 feet minimum. Currently I have been looking at some rc and drone receivers that would work as well, but I...

Raspberry Pi 3 with Raspberry OS... Recently did apt-get update and upgrade. It did an upgrade of the desktop after asking for permission to replace the file piwiz.desktop. It then ran a wizard to redo various options and preferences, including WiFi and password (which I had set up initially on...

https://hackaday.io/project/1279-ramanpi-raman-spectrometer It's a pretty nifty gadget this Raspberry thingy. A computer the size of a pack of cigs. :) And a mass spectrometer... I'm not sure what such a device costs but I'm sure it pretty frigging expensive!

Should one avoid logging into important accounts like Google / Gmail / e-commerce from a Raspberry Pi -- or is it just as safe as logging in from a regular PC? Or, is it actually safer, considering that it is Linux?

The objective: Determine the daily power draw of a Raspberry Pi (Watts per Day) and determine the average daily power generation of a solar panel. Will energy generated be greater than energy drawn? Lets begin, I have a 9 Watt, 18 Volt solar panel. This solar panel is charging a sealed lead...

For a quarantine project I bought a Raspberry Pi 4 and a breadboard accessory kit. It won't arrive for another couple weeks, but I as super excited to dive in. My first project will be to create a simple LED up time monitor for PF :) Anyone have some "must read" tutorials? I'll be using python.

So I'm trying to put together a Pi Zero mini computer to use for security-oriented applications, for example encrypting/decrypting messages, working with encryption keys, etc. It's cheap, very small and thus easy to carry around. However, I'm not entirely comfortable with the presence of the...

Hi, I am a retired Organic Chemist. I was looking around for the answer to a trig question and found this site. It looks interesting so I signed up. I am also an amateur astronomer, and have an interest in arduinos and raspberry pis as well as other computers. I mainly use linux and my...

Im trying to do some data logging, using a raspberry pi 3 would be super easy as it has a built in WiFi and Bluetooth receiver as well as an SD card. However when the vacuum gets to about -30inHg the Pi shuts off and the red light starts flashing as if there is no OS. Temperatures arent crazy...

I have need of a spectrometer to assist me in my artwork, so I plan to build one. Some of the paints I use are opaque, and many are transparent. I want to capture the spectrum as they would look painted over white canvas, or painted over other colors in several layers, so I will be reflecting...

Hello, i need you help to give me the idea and information about my project. I not familiar with this device, B101 HDMI to csi-2 converter. What i understood that this device can be a hdmi input on Raspberry pi. Based on my project, i need to communicate the Tv and Raspberry pi. In raspberry Pi...

I would like to start building small electrical projects but it's been a very long time since I studied circuit analysis in college. I figured that there are probably some computer programs that would help people like myself to design simple circuits. A quick Google search led me to this site...

May I know how to make multiple client connected to a server in python language. I want to communicate one Raspberry Pi to other Raspberry Pi using the python. What I knew, it need to used function socket. i will explain my project. There are contain 5 clients and 1 server. A server will open...

I got the solution how Raspberry Pi connected to the RS232 port. Raspberry Pi's port is USB. By using the chmod, stty and echo commands.Using the RS232 converter to the USB port.

Hello. I have a following C programming language code that blinks an LED ON and OFF. #include<bcm2835.h> #define LED RPI_GPIO_P1_12 int main(int argc, char **argv) { if(!bcm2835_init()) return 1; bcm2835_gpio_fsel(LED, BCM2835_GPIO_FSEL_OUTP); unsigned int delay(1000); while(1)...

Hello, I'm trying to make a project and I have a trouble. The project is 'online monitoring of machine'. I will show ON if machine works and OFF if machine does not work. And the rule is: I can not effect machine by my circuit. So it looks so simple. I bought SCT-013 non-invasive current sensor...

Hi, I would really like to make a system who takes a Microfone(Analog signal) convert it to a Ethernet(Digital signal) and in the end convert it back to Speaker(Analog signal). How would be the best way to do this? I have thought about using a raspberry pi or a micro controller. But do anyone...

Dear forum, I have an raspberry pi (which is using linux and bash),and I am trying to make connection with Windows7 and 8. As we know that we just need to download Putty.exe on the windows 7, run and insert IP address on to the box, another window will be showed up and "log in as" and...

Haven't seen a thread on this before so I'll start one. The Raspberry Pi 2 is really a marvel. For $30 you get a 90MHz quad-core processor and 1GB RAM on a Linux platform. The platform also comes standard with an ethernet connector, 4 USB ports, HDMI, and a micro SD slot. I picked up my...

So I have looked over a few other posts and do not feel like they are covering what I would like done. So I am currently using an Arduino Uno for the controller and am wanting to use an onboard Raspberry Pi in order to run the code and will be attached to my schools wifi in order to have a...

Hi, I'm planning on using a mosfet with my raspberry pi to controll a circuit, using the GPIO pins which can be set to +3.3V or GND but I'm having problems with choosing the type of MOSFET I will need. I've found the data sheet for a possibility here http://www.diodes.com/datasheets/ZVP3306A.pdf...

So I've been researching whatcould be the sensor/s that would do what the picture depicts: I have camera A behind camera B. What I'm trying to achieve is: to point the position of camera B when B passes on the field of view of A. When B pases in front of camera A the Screen of camera A will...

I have recently taken apart a few old DVD drives to see if there were any stepper motors available for a Raspberry Pi project I am currently working on. When I opened one of the older drives I found a motor which was unlike the others as it only seemed to have two wires going directly to the...

I just heard about this thing called raspberry pi. It's a credit-sized computer made by raspberry pi foundation. I heard of many projects you can do with this. There are sites with top 10 things you can do with the computer etc. What makes this computer special which allows us to do so many...

I am looking to work with a raspberry pi board to do some basic and eventually more complex things, what are the best types of things to attempt / what type of raspberry pi board is the best to purchase for a starter? As for the boards themselves I am aware that are quite powerful and I have...