April 22, 2024, 20:09
LED not dying without resistor
Hi!
I have a quick question regarding LEDs. My understanding has been that whenever using an LED I should use it in combination with a resistor to limit the current.
I have a bunch of different coloured LEDs and have noticed (accidentally) that when I wire up a blue LED directly to 5V, with no resistor, it seems to work fine. A yellow or green LED for examples dies effective immediately.
What could explain the blue LED not dying?
For reference the 5V source I'm using is a 65 watt capable USB PD power supply at 5V.
April 22, 2024, 15:24
Raspberry Pi zero w 2
Hey I wanna start a new project where i connect my Raspberry Pi to a OBD2 device with a cable connection. But i don't have that much knowledge and I don't really find a lot online. Could Someone maybe help me a little bit out at the beginning with some Tips with the connection?
Thanks :)
April 22, 2024, 13:50
enabling Samba shares on Pi 5
okay, so...I'm trying to make it so that I can access my pi remotely from Windows because I'm trying to add all my games back on there that I backed up from my Pi 3B...
however since I don't know what I'm doing, I got it working once I installed Samba and now I've locked myself out again...
what is happening?
I would just use Ubuntu and add the games that way but Ubuntu, when booted from a USB stick, keeps freezing up, my USB ports, my screen, everything, and I have to use the power switch to turn it off
April 22, 2024, 13:21
advice on installing k3s in devices
Ubuntu Server
Dell Servers
2 raspberry pi
April 22, 2024, 08:18
connection to pi from a different network
how to connect rpi to laptop wirelessly, the rpi is connected to wifi via ethernet cable and my laptop is connected to some other network not the ethernet netwrok that raspberry pi is connected to. how do i now connect my laptop to raaspberry pi using vnc
April 22, 2024, 07:58
connecting Motors to motor drivers
Hi all, so i am working on a little project which involves a robot chassis that comes with 4 wheels and motors.The name of the chassis is called Robot Chassis Kit NP and here is direct link for you to see https://thepihut.com/products/robot-cha ... 1900217539. I am very new to robotics and raspberry pi in general so i did struggle a lot.The motor drivers i am using is called the Pololu DRV8835 Dual Motor Driver Kit for Raspberry Pi. https://thepihut.com/products/pololu-dr ... 4113612995. I bought two of them because i was told i needed two run all four wheels, however, from this point i faced lot of issues, as i didn't realise i wouldn't have to solder parts like the female header and terminal headers which was long and difficult because i didn't know how to solder,but managed to.The real issue is the actually connecting the motor drivers to the motors, the motors come with this JST connector with this white paper clip but i didnt know or understand how this would fit into the blue terminals shown in the video demo, i then cut the paper clip of the JST connector like this.https://imgur.com/a/qjcZqGL i couldn't show actual image because it was saying it was too large, but as u can see i cut it of.I connected my motor drive to the grove base hat for raspberry pi https://thepihut.com/products/grove-bas ... 0299200707 to my raspberry pi 4b model, like this i'm not even if this correctly setup but here.https://imgur.com/a/omPlJ9h . If anyone could give me any tips, suggestions or advice on how to correctly set this up, id really appreciate it as i have struggled
April 21, 2024, 18:55
robot controller
i got one of these
https://www.waveshare.com/product/robotics/mobile-robots/raspberry-pi-robots/wave-rover.htm
I want to make a remote control for it. im going to attach the pan and tilt camera and some lighting on the front also. but does anyone have an idea how to make a controller for this?
April 21, 2024, 17:01
Pihole & IPv6
Good afternoon,
I have a Pihole on my home server. For some reason I am not able to use IPv6 on the Internet despite my ISP providing it. How can I troubleshoot this? I'm a bit weak on the network commands to check.
Thanks in advance!
April 21, 2024, 16:10
Autostart doesn't work
Hello! this is my code for autostart my python project on raspberry, but doesn't work:
[Desktop Entry]
Type=Application
Name=RaspberryProject
Exec=sudo -E python3 /home/pi/Documents/Programa/RaspberryProject/main.py
April 21, 2024, 14:56
Can't connect wifi dongle to rpi 3b v1.2 for repeater project
Hello, I've been following this guide: https://hackaday.io/project/171296-truly-wifi-extender
to turn my pi into a wifi repeater for a small project. However, after following all the steps i noticed that my usb dongle won't even connect to anything when it's plugged into my pi. Only my pi is connected to my home network, so i can't test if the project works. The pi recognizes that the dongle is plugged in when i type lsusb in the command line and the dongle does work when i plug into my laptop. Any help is appreciated.
April 21, 2024, 10:56
ILI9341 Spi drivers for android on orange pi zero 2W
Hello guys. Im looking for the drivers for this screen..
April 21, 2024, 10:24
Verifying Write Failed
April 21, 2024, 10:10
Joystick module as mouse rpi5
so im trying to make a joystick module work as a mouse any help
appreciated
April 21, 2024, 02:22
Setting up an ethernet connection for VNC (Pi B+)
I'm trying to set up VNC over an ethernet connection, using several tutorials I found online. I have an Ethernet cable running from my laptop to the pi, and I want to be able to control the pi via VNC from my laptop.
I've enabled wifi sharing on my laptop, and I have the cable running, but the Pi isn't connected -- the up/down networking arrows are flashing. The frustrating thing is that it was working only an hour ago, and I was able to both ping google.com from the pi and connect to it via VNC. Now it is not connected to the Internet and I cannot connect to it by VNC. The only thing I did was set the pi to have a static local IP, and reboot it.
April 20, 2024, 16:37
Raspberry pi 0W WIFI stopped working properly
I Turned off the raspberry pi by unplugging the cable( i didnt know that i have to turn it off first) and i ended up with a fried sd card and the wifi got super slow it was downloading at 1,2ish MB/s now its 80Kb/s at best. Any Ideas on how to fix this and thank you!
April 20, 2024, 16:02
How do i connect THIS LCD screen, no touch
I'm trying to use an old display from a Portable DVD player (used in cars). The display is a 7" 0004-JXY-A1 from Hannstar. It uses the same flatcable as the rasberryPi Camera so i thought maybe i could use this screen? Well i have some pictures attached to help you guys understand but when connecting the screen i ofc don't get an image. I need drivers or i think i could solder the screen to some pins, any ideas would be great. I do have another screen but rn i could not buy anything so i'm looking into doing it without buying other material.
April 20, 2024, 16:00
trouble with the camera for rpi 4
hello, im using rpi 4 and i tried to connect a camera to it but it does not work
when im trying this commend on the terminal: vcgencmd get_camera this is the respond:
supported=1 detected=1, libcamera interfaces=0
i know that they disabled raspistill but libcamera doesnt work neither
April 20, 2024, 12:46
The raspberry pie pico ducky is not using its payload (BAD USB)
April 20, 2024, 12:23
Raspberry Pi 4B experiencing slowdowns
Hello, I've finished setting up my Raspberry Pi 4B and I'm noticing quite a lot of slowdowns. For example: if I want to open a window it can take quite long to open, especially compared to a PC OS (ik I shouldn't really compare, but still). Is there any way to maybe increase the speed? Am I maybe missing something? I'd appreciate help.
April 19, 2024, 21:21
i2c address detection empty.
I’m trying to set up a joystick with the Freenova kit. However, my i2c address is completely blank ( it doesn’t have the 4b on it.
Is it a hardware thing? This is my set up
April 19, 2024, 20:42
Pi 3b ps3 controller not working (URGENT!!! I HAVE A DEADLINE IN 5 HOURS :sob: )
I'm using this library https://github.com/FRC4564/Xbox combined with the pigpio lib to do an RC project
wired connection
I've followed the installation commands, when i run https://hardwaretester.com/gamepad , it shows up as a sony controller and it doesn't receive any inputs
sudo xboxdrv --detach-kernel-driver also returns nothing
when i run my script, it says that "import xbox" doesn't exist... help
April 19, 2024, 13:07
Does anyone how to setup retro pie for pi5?
i've set up retro pie on my pi3 and everything went well. I followed this guide https://github.com/danielfreer/raspberrypi5-retropie-setup all went good got through that but the issue is that it isn't making the files when i plug inn a usb.
April 19, 2024, 12:32
baremetal led binlink on rpi 0 w
Hey everyone, i am trying to blink an LED on a GPIO using baremetal rpi 0 w
I have been using the official BCM documentation and youtube tutorials, but I still struggle. Below are the links to the videos, my code and my setup
April 19, 2024, 06:22
I need GUI toolkit for commerical production with video and web embbeded support
Like title says i need a gui toolkit for raspberry pi 4. It needs to be free licensed. I am planning on runing videos, fetch from web (like weather status) and maybe show things like twitter feed in web embbeded.
I have tried flutter-pi but playing videos there didn't really worked. I'm open to any suggestion. Thank you in advance!
April 19, 2024, 02:28
Need consultation
Looking to use an rfid reader to open and close a few 12v relays as well as a small screen to say (welcome your name here) and such. i have no idea how to use an arduino but im looking to get into it
April 18, 2024, 16:53
project: press a button and text pops up on the terminal
Hello. This is a project I’m doing with a breadboard and a simple button. I’m using the free nova kit and extra tactical push.
Goal: if I press a button on the breadboard, text will pop up on the python program.
I’ve been looking for tutorials on how to do this and I can’t find anything specific. Any recourses will be appreciated.
April 18, 2024, 14:44
motor urgent help
So i set up my pi 4b, with my monitor and I connected it to a PCA9685 . I have 6motors but wanted to test only of them and i couldn’t figure it out. I have a 5V adapter for the pi and a 12v 5A adapter for the PCA9685 that will attach all of my motors. The max stall current on my motors is 2.3 A at 7.4 V. Ive also thoroughly checked all my connections as well as confirm that I2C connection was being read by my pi. Does anyone know what else i could do?
April 18, 2024, 07:42
Connect multiple SATA HDD to a RPI 5
I'm looking for ossible options to connect 4-10 SATA HDD's to my pi, preferrably energy efficient.
So far, I have tried external USB enclosures that are connected via USB3, but they all seem to draw more power then the RPI itself.
Now, I was thinking of connecting my Pi directly to the PSU of an ATX case I have and connect the HDD's via the PSU's SATA-power connectors.
The only thing left is connecting the data-sata cables to the pi.
One option would be an nvme hat and one of these https://mobspares.com/en-eu/products/m2-m-eky-pcie-3-0-to-sata-6g-adapter .
Does anyone have experience with this?
April 18, 2024, 06:03
Running a Winforms App
Hey everyone, I'm currently working on a project that requires porting a winforms app to a Raspberry Pi 3 A+. I've tried mono, wine, and even Windows IOT so far to no avail. Is this actually possible to do or should I just rewrite my program? Thanks in advance.
April 17, 2024, 08:39
Ethernet soldering pcb
For a project I want to directly connect ethernet wires to the pcb of my switch by soldering them on. However I have no idea which color should go where. When I connect a multi meter to one pin on the inside of the rj45 jack, multiple of the ‘soldered’ connectors make a beep sound. Is there any documentation/guides about this? I can’t find anything
