All Questions

Filter by
Sorted by
Tagged with
0
votes
0answers
7 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 ...
0
votes
0answers
4 views

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

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 ...
0
votes
0answers
9 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 ...
0
votes
0answers
20 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 ...
0
votes
0answers
13 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 ...
0
votes
0answers
16 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
votes
0answers
8 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
votes
0answers
16 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
vote
1answer
9 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
votes
2answers
18 views

Bit Banging Using Pi PGIO and Python

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. ...
0
votes
0answers
9 views

howto config network interfaces in Raspbian after config files change

ers,$ 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 ...
-1
votes
2answers
31 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
votes
0answers
33 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 ...
0
votes
0answers
22 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
votes
2answers
24 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 have used SMTP before and it works perfectly fine. I just want to know are there any ways besides SMTP?
0
votes
2answers
19 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
vote
0answers
14 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
votes
2answers
24 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
0answers
15 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
0answers
38 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
votes
0answers
13 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
votes
0answers
12 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
votes
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
votes
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
votes
0answers
32 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
30 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
26 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
0answers
15 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
10 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
33 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
15 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
33 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. ...
0
votes
0answers
19 views

Installation of kernel module for I2S Mic fails

I have a I2S mems microphone from adafruit. Now I am following the guide at https://github.com/nejohnson2/rpi-i2s#compile-the-i2s-module Now after I have mounted the debugfs I attempt to look for the ...
0
votes
0answers
9 views

how covert pyaudio sample rate 44100 to 16000 sample rate in Raspberry pi3 b+

Here I have provide the code which was working properly before but suddenly its stop working. But if I change the sample rate 16000 to 44100 its working. But i am not able to understand what exactly ...
2
votes
0answers
36 views

How to split a display into many and access all the screen

I'm trying to split the screen in raspberry-pi. and access each screen for each display I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
2
votes
2answers
60 views

Reading R232 (Serial) from USB on Pi Zero

I know there are similar posts on this topic, but I've scoured them all and haven't been able to figure this out. I'm trying to control my projector via a R232 port. I have a USB to R232 cable, ...
1
vote
0answers
33 views

Can I use Raspberry Pi to log into an account and print information from a certain page?

I run a small gift basket business and am always looking for solutions to make my day easier. One thing that slows me down is having to print gift messages for each basket. I was wondering if there ...
0
votes
1answer
27 views

Is there a way to have USB data transferred from Pi to HAT?

I'm designing a Raspberry Pi HAT that requires USB for debugging. The 40-pin GPIO connector that connects the Pi to the HAT doesn't seem to have any USB designated pins. I would like to use the USB ...
2
votes
1answer
15 views

Server client connection recovering

I have Sever/Client sending data back and forth, everything works fine, until the client looses connection and tries to reconnect. When I run the project in the coding windows I can disconnect any ...
0
votes
2answers
32 views

Help Patching a driver

I've been tasked with updating a driver on a Raspberry Pi 4 running Raspbian. I'm told I need to apply this patch https://lkml.org/lkml/2019/4/1/1050 in order to get my USB modem to work. When I run ...
-2
votes
0answers
20 views

How to Save Raspberry Pi generated data to Central PC in same network

I have raspberry Pi3 which is collecting some data that i being stored in MariaDB but i want to store this data to a central PC instead of RaspberryPi as storage of raspberryPi is not large enough to ...
-1
votes
1answer
23 views

How to make lilypad temperature sensor work with raspberry pi zero?

I discovered a lilypad sensor thought of connecting it with raspberry pi zero to measure living room temperature. But lilypad sensor is analog input and pi doesn’t have analog pin. How can i make ...
0
votes
2answers
25 views

Is the Pi Zero software-equivalent to a 1.x B+?

Is it generally safe to assume that anything (software-related) that works with a Pi Zero will ALSO work with a 1.2 B+, or are there things that even the Zero can do that the old 1.2 B+ can't? Why: I'...
-1
votes
0answers
11 views

bridge repeater unsure what to call it

ok here is the set up router 1 ~~ pi ~~ router 2 ~~~ rest of the home router 1= public wifi (aka library) i need the rpi to pick the signal up using a [Alfa Long-Range Dual-Band AC1200 Wireless ...
3
votes
1answer
64 views

Do I need to do anything to install/run applications in 64 bit?

I've switched my Raspberry Pi 4 from 32 bit to 64 bit (Raspbian buster) by adding this to /boot/config.txt kernel=kernel8.img arm_64bit=1 This seems to work fine. I'm running docker and that has ...

15 30 50 per page