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How to install PIXEL on Ubuntu Server (64bit)

I got a Raspberry PI 4 running 64bit Ubuntu Server. Now I have a bash prompt want a desktop environment. Hopefully, the PIXEL desktop to minimize differences from stock Raspbian. A quick google ...
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0answers
6 views

Use a 2.5" LCD in a Blaupunkt Dashcam for Raspberry Pi?

and thank you for reading my topic. I recently bought a "2.5" LCD HD Dashcam" from the Blaupunkt brand (BPDV122), although I am aware they have just used this design from another company. https://www....
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0answers
9 views

Using EnOcean PI 868 with raspberry PI4

first of all: I'm new to raspberry I.ve just bought a raspberry PI 4 together with an EnOcean PI 868 module to set up a house automation system. To make it run I've tried the steps described on the ...
0
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1answer
8 views

python start on boot

i am trying to get my WS2812 NeoPixel python sketch to run at boot, i used a tutorial https://tutorials-raspberrypi.com/connect-control-raspberry-pi-ws2812-rgb-led-strips/ it install the correct files ...
0
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1answer
15 views

How do I reverse the loop?

I'm trying to do a KITT Led Scanner on the simulator at https://trinket.io/sense-hat. This is my code: from sense_hat import SenseHat import time s = SenseHat() R = (255,0,0) x = 0 y = 1 s.clear() ...
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0answers
15 views

monitor air quality

I would like to build a device to monitor few chemicals (CO, NH3, H2S) and particulate (PM2.5 and 10) in the air. I have been looking online for related sensors and I found that the MQ-X series (CO=...
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0answers
10 views

how do I mirror my google maps from phone to a small display on raspberry pi , {of course without GPS module}?

So, I am looking to make a very simple device that can work as a secondary screen for the maps app on my phone so that I can attach it to my bike and see the direction with having to use a cellphone ...
0
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1answer
25 views

Application Deployment

Am I allowed to add my application to the Buster OS and offer it a an img download file for purchase? I appreciate some people regard the Rpi as free to use but I am adding (hopefully) added value.
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0answers
11 views

How to interface ultrasonic with raspberry pi through IOPI plus AB Electronics UK

import time try: from IOPi import IOPi except ImportError: print("Failed to import IOPi from python system path") print("Importing from parent folder instead") try: import sys ...
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0answers
15 views

Unable to run JavaFX application on Raspberry Pi 4B

I have developed one JavaFX touchscreen application with screen size 800x480 which runs fine on RPi 3 with the Raspberry Pi 7" Touchscreen Display in the default resolution (800x480). Now I am trying ...
2
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0answers
20 views

Problem with PI GPIO using BB SPI

I've developed a PI Python application to replace an old control card which sent bit banging out to daisy chained LED drivers. It all works fine except when I need some fast updating of the LED's. ...
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0answers
25 views

Why do my servos only work the first time

I Posted earlier about having problems with my servos that you guys helped me with and I'm really grateful for that. Now I'm facing an other issue with the servos: I have put them on my "robot" that ...
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0answers
11 views

Raspberry Pi Compute Module - VBAT SMPS schematic

I'm developing a PCB for a LiON battery powered portable device featuring the Raspberry Pi CM3+ compute module, but am having difficulty verifying my power budget for the system due to the datasheet ...
0
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1answer
16 views

Looking for a reliable cellular module any suggestions? [on hold]

I'm looking for a reliable cellular module for the Raspberry Pi that is both compact and able to not use up too many GPIO pins. Something that uses the micro USB for instance might work well here.
1
vote
1answer
34 views

Driving 2 12v - 30A brushed DC motors with Raspberry Pi 3

For a robotic project we are building a security robot. As a base we bought one of those electric cars for 2 kids, where they can drive in themselves without a remote. We took it apart, and we now ...
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0answers
13 views

Keep losing SSH connection while streaming Raspberry Pi Zero W video using Raspbian Buster Motion or Picamera Python

I have set up my new Raspberry Pi Zero WH with the new Raspbian Buster (recommmended software), avaiable on raspberrypi.org. I have tried the following to real-time stream video over WiFi using SSH ...
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0answers
13 views

Raspberry pi 4 won't boot and won't flash bootloader

My raspberry pi 4 2GB was working and suddenly stopped working, and booting. The green light flashes briefly once when i plug the alimentation, then stop. The red light is on. I tried with another ...
1
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0answers
29 views

RGB888 as input to Raspberry Pi

I need to give RGB888 data coming from one of my hardware into a Raspberry Pi and should be able to see the video feed via a script just like raspivid. Methods to interface Pi to DPI is available. I ...
1
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0answers
21 views

Need to display 2 LCDS at 800x480

Im using a Raspberry Pi 4 running the latest version of Raspbian. I need to run 2 separate 5" LCD displays at 800x480. This is the LCD I'm using: https://www.adafruit.com/product/1680, connected ...
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0answers
35 views

Low wifi speed even with 5Ghz wifi adapter

My internet download speed from my D-Link wifi router is 24 M bits/s From ethernet the download speed is 50 Mbits/s I am using Tp-link AC600 Archer T2U Plus wifi adapter with Rapberry pi 3B+ I ...
0
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1answer
13 views

Getting empty images from picamera module but not raspistill

I wrote a python script to interface with the camera module (I have camera version 2.1). At first I tried with picamera, which has worked in the past. According to pip I have version 1.13 installed. ...
0
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0answers
24 views

Unable to stop motor through GPIO in Python

I'm using an rPi to send a GPIO signal to a servo motor. When I run the program, the motor starts turning, and then continues without stopping, even if the program has terminated through the use of a ...
1
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0answers
11 views

raspistill won't work when automating shots on 1GB PI 4

THIS WORKS: raspistill -cs 0 -ISO 600 -ss 175000 -w 1920 -h 1080 -o watcher-0000.jpg This does not raspistill -cs 0 -t 46800000 -ISO 600 -ss 175000 -w 1920 -h 1080 -o watcher-%04d.jpg I have ...
0
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1answer
15 views

howto config network interfaces in Raspbian after config files change

I cannot find a way to start network interfaces with proper config after I changed config files (eg dhcpcd.conf). The only way I found to take the new config into account is to reboot. There must be ...
0
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2answers
36 views

running a mosfet from 3.3V gpio output

i am running a low side switch with the 3.3V gpio output of the pi, and for the particular transistor i’m using (irf520 ) the 3.3V is barely enough to turn it on - is there some clever positive ...
0
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0answers
37 views

12v DC proximity detector for use on truck (2-3 feet range) [on hold]

Well after the 3rd time getting hit at work, this last time was major damage... of course no one said anything. I suspect that the issue is parking. The parking lot is a crappy design. Anyways, I ...
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0answers
24 views

execute my program when my Raspberry Pi boots up with time sleep 10

I am trying to execute my program when my Raspberry Pi boots up with time sleep 10. it workt only with time sleep: "time sleep 10 && ./DotNetConsoleApps/Tinkerforge/helloweatherstation" but ...
0
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2answers
35 views

How to send email from Pi using python without smtplib?

I am new in Raspberry Pi and I am trying to send mails without using SMTP. I had used SMTP before and it worked perfectly fine. But recently the same code is not working, though it compiles without ...
0
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2answers
23 views

How to implement remote control GPIO Raspberry Pi?

Good afternoon. I decided to build a small machine based on Raspberry, running through wifi. Wrote a simple web muzzle, which requests turn on and off the engines. Not sure if this is the best option, ...
1
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0answers
18 views

Raspberry PI4 slow ethernet

I have some issue with my LAN network with Rasberry PI 4. My network in PI has configuration: eth0: negotiated 100baseTx-FD flow-control, link ok when I run iper3 on PI: iperf3 -s a then on PC as ...
0
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2answers
26 views

Display a video at boot

we want to show a video in the entrance hall with the activities of our company. Now in crontab withcrontab -e i have this line to open the movie file that we want to show. @reboot vlc ~/Desktop/...
2
votes
1answer
19 views

How to connect Pi 4 to WiFi AP that requires web page logon

SCENARIO I have my headless RPi 4 running Raspbian Buster Lite setup as a NAT router, using the internal antenna wlan0 to connect to the WAN, and an external USB antenna wlan1 with its own SSID. I am ...
1
vote
1answer
20 views

is it possible to set up multiple ssids using rpi 3?

I have been trying to setup multiple ssid configuration in my rpi 3B so that my rpi can broadcast multiple ssid through the adapter present in the stock hardware itself. Does BCM43143 support it?
1
vote
1answer
45 views

PCF8591 with Analog Joystick I/O error when reading input PYTHON

I have been trying to create a retropie unit, and I'm in the midst of writing a script to inject uinput events for the analog axis values. This is the code I've written so far, but the issue is that I ...
0
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0answers
15 views

Can't Access Octoprint web server

I have 2 octoprint instances running on my raspberry pi. One octoprint instance is running on port 5000, and the other octoprint instance is running on port 5005. On the raspberry pi, I can connect to ...
0
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0answers
14 views

Bluetooth hci0 device suddenly missing on 4B+

After a recent reboot of my 4B+ I noticed that my bluetooth connections had stopped working. I noticed that bluetoothctl reported no device, and further that sudo hciconfig hci0 up indicates Can't get ...
0
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0answers
7 views

Pi Zero (with pihole installed) refusing to connect to npm registry due to cert altname

I am trying to run npm install on a react project on my pi-zero. Since I have installed pihole, I understand my DNS settings may be pretty strange. I have tried running the install with pihole service ...
0
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0answers
7 views

Low Framerate in video recording using picamera

I am trying to record HD video using Picamera and writing it using OpenCV. But I am unable to get the desired frame rate (10 fps). I recorded the video of 1 minute but the video that was saved was ...
0
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0answers
35 views

Testbench for Raspberry Pi

I've owned Pi's since the first generation and have had various test rigs made from what I had to hand including stepping the voltage down from 12v and various bits of lego holding the components in ...
0
votes
1answer
12 views

Raspberri Pi (Raspian) running Apache 2, PhP(7) HTML CSS not running PHP

I am getting very frustrated with trying to track down the source of my problems with the code below. I believe it is something to do with php files not being run. (Note that all files are in the same ...
1
vote
1answer
32 views

How to make/develop android apps and use them with RPi4?

I am using Raspberry Pi 4 for a while with the latest buster release. I searched for a lot of questions and find that android development is not possible with raspberry pi. But I wonder, that both are ...
0
votes
0answers
17 views

How to prevent programs like Jenkins from stopping/sleeping/waiting

I know this is probably a silly question, but I'm trying to get Jenkins running on my pi for a project. I've installed jenkins, changed the port to 9080 and port forwarded so that I can view it ...
1
vote
0answers
10 views

Accessing PI camera from Android using Firebase

i am trying to send pi camera footage to firebase and access it from my android app, can this be done using realtime firebase database ?
2
votes
1answer
27 views

Autologin root user without login and password window

I've running last version Raspbian. Edit a file /etc/systemd/system/autologin@.service and changed the one occurence of 'pi' in that file to 'root'. Edit a file /etc/lightdm/lightdm.conf and changed ...
0
votes
1answer
20 views

ImportError:python2.7/dist-packages/RPIO-2.0: undefined symbol: makedev

I have a problem with RPIO. I am running a face recognition using OpenCV python on Raspberry Pi 3B+. pi@raspberrypi:~/facerec-pi/code $ sudo python capture-positives.py Tradeback (most recent ...
0
votes
0answers
12 views

Can't get OpenCV up'n'running in Raspberry Pi, what should I do? (details in the description)

I followed the whole tutorial (https://www.deciphertechnic.com/install-opencv-python-on-raspberry-pi/) line by line, but at the end when I imported the OpenCV library in Python CLI, it gave this error:...
0
votes
0answers
36 views

How do I read all registers of an INA219 sensor via SMBus in Python at once?

I'm trying to Connect my Raspberry Pi 3B+ with a Raspbian 10 to an INA219 current sensor (that also returns voltage and a premultiplied power) via SMBus in Python 3.7. After destroying one Raspberry ...
3
votes
1answer
35 views

Sending a binary data stream to a GPIO at a certain frequency

I would like to send a random binary data sequence to a rpi GPIO at a particular frequency and then read the data stream off a scope. Is there a way of implementing this through python?
0
votes
0answers
16 views

Unable to use I2S MEMS microphone in google duo web

I am using Adafruit I2S MEMS Microphone in raspberry pi 3 running raspbian buster. I installed it successfully following adafruit guide. It is working well for recording using arecord. My .asoundrc ::...
1
vote
0answers
34 views

Raspberry pi with 1.3" oled i2c screen

I'm currently trying to use this 1.3" i2c oled screen with the Adafruit oled i2c library, but I'm currently getting this issue: I have made sure to run the setup.py and all of the code is the same. ...

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