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11 views

Driver for HelTec E-Ink display

I was given this SPI e-ink / e-paper display from HelTec and am trying to make it work with RPi. Apparently there’s a driver for Arduino but I would very much prefer to connect it directly to RPi and ...
1
vote
1answer
25 views

Sort or more filter options on Add/Remove Software?

It is virtually unusable because it shows too many false-positive results. For example, when searched for "FireFox" it shows this. FireFox is not even at the first page and as you see the ...
-1
votes
0answers
14 views

Which board should one use for a specific task [closed]

I'm emulating the Philips hue bridge in a way where instead of it only being able to control only Hue lights, it can control any smart home device, so that I have everything within one app nicely ...
0
votes
1answer
16 views

Cannot see RPI ad-hoc network from android phone [closed]

I installed on RPI zero W a ad hoc wifi network, through this github project: https://github.com/simondlevy/RPiAdHocWiFi I works perfectly with my mac, and my iphone, so I can connect correctly (...
0
votes
1answer
30 views

Connect to internet with Sakis3g when modem establish network connection

RP-beginner here, Background I'm using a shell script called Sakis3g to connect to internet and it works very well (It uses wvdial in the background and sets up a ppp-connection) I want Sakis3g to run ...
-1
votes
1answer
17 views

issue in RPI 3A+ connectivity to laptop (first time) [closed]

I'm trying to connect RPi 3A+ with my laptop windows 10. First method I tried using: a) Copied the Raspbian image (downloaded from the RPi source) using win32discimager. b) then created no extension ...
0
votes
0answers
10 views

redirecting MQTT traffic via RPi

I have IOT device that communicate to MQTT server (from port local port 1553 to 8883 on the remote server). to understand the encryption method I want to redirect the traffic to my own local MQTT ...
0
votes
1answer
25 views

this channel already in use, continouing anyway [closed]

why does every program always appear like this? What's wrong with me?
0
votes
0answers
19 views

Raspberry pi 3B+ not booting up ( ACT light / green light doesn't blink at all)

I have an old raspberry pi 3B+. After a long time, I tried to use it. I found raspbian stretch image file in an old archive. So I wrote it in a 32GB microSD card and tried to boot the pi. But the ACT ...
0
votes
0answers
19 views

SSH tunnel immediately gets closed - systemd

I have made a systemd service called rtunnel.service. It should create a ssh tunnel as the pi boots up but it gets closed immediately. Can somebody explain whats my problem here. Please can somebody ...
2
votes
0answers
35 views

Knocked off an SMD from Raspberry Pi Camera Rev 1.3, but camera still works. Is the SMD needed for continued operation?

I accidentally knocked off and lost an SMD labelled "C9" from the Raspberry Pi Camera. The Camera still works, and I am unable to spot any differences. What is the role of the capacitor, and ...
1
vote
1answer
13 views

CLASSPATH seems to be ignored by openJDK8 on RaspiOS Lite Buster

I installed openJDK8 on a Raspberry Pi 0H with RaspiOS Lite (BUSTER). I also installed wiringpi and pi4j libraries. I added the directories to CLASSPATH in the /etc/environment file and even tried ...
0
votes
0answers
35 views

Issue with Pi 4 and 1wire

I've got a Pi 4 and went to hook up a couple sensors, the first being a DHT11, it's working fine. The second being a DS18B20, on the 1-wire interface (using the standard GPIO pin 4). The circuit is ...
1
vote
0answers
11 views

Error: Index of / Name Size Date Modified. Whenever trying to ftp into Linux

I have set up a vsftp service on linux. It use to work perfectly fine by typing in my browser ftp://kali:@ip-address/. However now whenever i try to do it I get the following message on the page: ...
1
vote
0answers
12 views

What connectors needed to mate Pi4B to KVM switch with video on DB-9 and P/S2 keyboard and mouse?

First off I don't even have a Pi yet, ordered it yesterday. I've 2 PIIIs on the desktop and a Sony SDM-HS73 display all tied together througn a KVM switch that takes P/S2 connectors for keyboard and ...
-1
votes
0answers
20 views

I have no power lights [closed]

My raspberry pi zero w won’t take power. I accidentally broke the power adapter in the Charging port and it was working fine. Also it was not working when it was not broken but it won’t read SD card
1
vote
1answer
28 views

DNS Leak when using OpenVPN in Raspberry Pi OS

I could never force OpenVPN to use the remote DNS provided by the vpn server in the latest Raspberry Pi OS (ubuntu has no problem in network manager by default). I've tried so many ways to fix the DNS ...
0
votes
0answers
20 views

Over-Voltage and Over-Current protection circuit [closed]

I have huge security project that i have been working on for sometime but i have a little bit of problem now is that i have some peripherals that is outside the room door like LCD and keypad and i ...
0
votes
0answers
17 views

Encrypt whole root or home on Headless RPi zero

My question is, what possibilities are there to make your data secure on a headless Pi. I'm pretty sure that making it disk encrypted needs an interface also with home but I want to decrypt/unlock it ...
0
votes
1answer
21 views

select audio sink via cmd line on buster

With Raspberry Pi OS Buster after connecting my bluetooth speaker, I can select this as audio sink very simple by right clicking on the audio symbol and selecting the bluetooth speaker. That works ...
2
votes
2answers
51 views

Raspberry Pi 3 Model B+ got hot even in idle

My Raspberry Pi 3B Plus is running Raspberry Pi OS (32-bit) Lite. I only made update, upgrade and install Apache2. It is connected to my home network with 1Gb Ethernet cable (no WiFi). Network traffic ...
0
votes
0answers
13 views

Create Overlays with DispmanX in Python

How can i create preferably dynamic overlays using Dispmanx in Python on a Raspberry Pi (3B)? My goal is to overlay custom images containing current information on top of a Picamera Preview. The ...
1
vote
0answers
25 views

PIR sensor always high with Raspberry Pi3 without breadboard

I have a HCSR501 PIR motion sensor, which has 3 pins (Vcc, Out, Gnd) that I've connected to 5V, GPIO 26, and Gnd respectively. Despite following all the steps in tutorials for interfacing the sensor, ...
1
vote
1answer
61 views

Scripting bluetoothctl causes it to fail after connection

I'm connecting to a custom BLE enabled board. Running bluetoothctl, I can pair and connect no problem from the command line. I've been attempting to script it using Python and pexpect. Pexpect spawns ...
2
votes
1answer
45 views

Is older Raspberry Pi safe? When is the end of software support for them?

I am not asking about the discontinuation of manufacturing or selling of the hardware; I am talking about only the software. There are famous old Android devices that the manufactures have abandoned a ...
0
votes
2answers
25 views

Raspberry Pi 4 failed booting and loops error message

My Raspberry Pi starts booting and ends with looping error message beginning with [FAILED] Failed to start Avanced See 'systemctl status hostapd.service' for details. and ending with [DEPEND] ...
0
votes
0answers
24 views

Raspberry pi 4 does not show on HDMI Monitor or TV

I have a Raspberry Pi 4 and have not managed to get a display on it through HDMI. I have tried 3 different cables, a standard HDMI to HDMI with a connection adapter, a new cable specifically for the ...
0
votes
0answers
30 views

Connect FM Antenna to Pi [closed]

I trying this project to use Pi as Radio Transmitter. I'm able to transmit song from Pi to my radio, using wire cable as Antenna. I would like to as if there would be a larger range distance to ...
0
votes
0answers
39 views

picamera and Ubuntu 20.04 arm64?

Does picamera work on Ubuntu 20.04 arm64? I am on pi4 4gb. Added start_x=1 to /boot/firmware/usercfg.txt and rebooted. Checked for updates. pip3 install picamera - ok. When import picamera is ...
0
votes
0answers
29 views

status water pump on database with GPIO [closed]

I have a program to start a live water pump or not with GPIO. then the on or off status will be continued in the database. How is the program to tell the status of the water pump on / off on the ...
1
vote
2answers
18 views

Buster GUI Icons and text are too small

I have a Pi4B-4 with a 13.3 diag HDMI screen. The fonts are too small even when preffed to "large". True of console text size too. Kindly, how do I resize them larger? Obvious noob question, ...
-1
votes
0answers
19 views

Installing tensorflow 2.x on Pi desktop [closed]

I am running a raspberry pi desktop (raspberry 4.19.0.8-amd64) as a virtual machine on windows 10. But i can't get to install tensorflow 2.x on it.
1
vote
2answers
29 views

Can I use a 40 pin GPIO ribbon cable to connect a Pi 4 to a Pi Juice?

So I have a Pi 4 and an official touchscreen and I'm building a portable device to run retropie. I got a heatsink/fan combo which is about as tall as the USBs on the pi and I've ordered a Pi Juice HAT ...
0
votes
0answers
39 views

Delay/Lag when controlling motors with arduino from raspberry pi

I'm making a car-type-thingy where I control motors connected to an arduino with a raspberry pi via serial communication. I'm using the adafruit motor shield to control the motors. I want to control ...
0
votes
0answers
17 views

Why no more than 45 temperature [closed]

I don't understand why the temperature stays below 45. I don't use exta cooling and I overclock it arm_freq=1550 gpu_freq=500. And I increase the limit: temp_soft_limit=70. It still remains below 45. ...
1
vote
0answers
19 views

How to get Nautilus as a desktop

Installing Nautilus is easy. But I can't manage to get Nautilus as a desktop. I have found forums around my topic but to no avail: Nautilus as desktop manager How to set wallpaper in Nautilus Desktop ...
0
votes
2answers
23 views

How can I connect Raspberry Pi to L293D motor driver shield?

I am new to Raspberry Pi and I'm trying to connect my Raspberry Pi 4 to an L293D motor driver shield. I have scourged the internet for circuit diagrams but I have only found either L293D IC or L298N ...
1
vote
0answers
31 views

Setup Wifi direct (wifi p2p) between dedicated pair of Raspberry Pi 3 B+ - One Group Owner, the other the client

What I would like to accomplish: A dedicated pair of RPi's using Wi-Fi Direct (p2p), one GO (group owner) the other its Client. The GO is not to be an Access Point as neither RPi needs to connect ...
-2
votes
1answer
20 views

realtime : Please set pin numbering mode using GPIO.setmode(GPIO.BOARD) or GPIO.setmode(GPIO.BCM) [closed]

I have a program to remove the output from the sensor for 10 seconds, and if one of the sensors meets the requirements, then the gpio 38 and 37 turn on .. but this program should be realtime, but when ...
2
votes
1answer
26 views

Chromium and virtual keyboard with automatic popup

I want to run Chromium in full screen (kiosk) on Raspbian Stretch. I have a touch screen and I need a virtual keyboard to popup when I enter a text field. On Debian 9, I have gotten this to work ...
0
votes
0answers
22 views

how to simulate raspberry pi interfacing sensors in visual designer, proteus? [closed]

I've made a schematic ( raspberry pi interfacing PIR] on my proteus (visual designer) and wrote a code source on python also in visual designer to simulate a raspberry with PIR, when i build project ...
1
vote
0answers
20 views

Raspberry Pi 4 fails to reboot

I have a raspberry pi 4 running Ubuntu server 18.04. I usually SSH into it and reboot the system. However, I noticed that some times the pi does not successfully boot up again after shutdown so I have ...
1
vote
1answer
34 views

Issue when installing python-package virtualenvwrapper

I am new to Linux and Raspberry Pi, so sorry if this is some trivial question or if I did not mention some important information. To my problem: I have a fresh install of Raspbian Stretch on a ...
0
votes
0answers
26 views

Upgrading Ubuntu Mate with Berryboot (Raspberry Pi 3)

I have installed Ubuntu Mate 16.04 with Berryboot on a Raspberry Pi. When I try to update the kernel with sudo apt-get update and sudo apt-get upgrade, it can't proceed with some warning root device ...
1
vote
2answers
50 views

sound output stuck on HDMI (working)

I cannot get any output to use the 3.5 mm headset jack it is stuck on HDMI. There are lots of questions on here that ask about the headset jack connector not working and have answers on howto switch ...
0
votes
0answers
12 views

picamera module save video periodically

I would like to record video to a file using the picamera module, and "save" the file every few seconds so that in the case of a power outage the video is partially saved, instead of being ...
1
vote
1answer
24 views

Using a motor driver such as the L298N with only one GPIO pin

I am currently working on a project that requires many different motors to be powered by a raspberrypi. Common drivers like the L298N use two gpio pins to drive a single motor in a direction, the ...
1
vote
1answer
36 views

Using 3 SIM800c GSM Hat on 1 raspberry pi 3b+

My goal is to control at least 3 SIM800c hats using just one RPi but I'm not quite sure it will work. How will Rpi reference each hat? Can each hat make a call of their own? For reference: How to ...
1
vote
1answer
17 views

When uploading from WinSCP: How to mount an external samba drive to give all users write and file rename permissions? [closed]

I have a raspberry pi behind a Fritzbox router that also doubles as a nas with a drive connected via USB. I have mounted the nas to the pi's "/media/fritzbox-usb" directory and would like ...
0
votes
0answers
31 views

Using a port expander AND other GPIO pins

I'm working with a port expander for the pi to run four stepper motors from python. It was working great until I tried to also use a GPIO pin on the pi (not on the port expander) as an output. I was ...

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