Questions tagged [pi-3]
For questions that apply specifically to the Raspberry Pi 3 and not other/all models.
1,009
questions with no upvoted or accepted answers
7
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1
answer
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Open Splash Page After Connecting to Wifi Hotspot
I'm using my pi3 to display a local "website" as described here Making a Raspberry Pi 3 accessible w/o configuration via WiFi and static IP/URL.
Therefore, I'm creating a hotspot with the pi. This ...
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6
votes
0
answers
20k
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Bluetooth MAC Address Raspberry Pi 3
I'm trying to connect two raspberry pi 3 betweem them via bluetooth.
But the fact is that their MAC addresses are AA:AA:AA:AA:AA:AA
Does anyone knows how to assign them a real mac address in order ...
6
votes
0
answers
768
views
Debugging a RPi using SWD
Has anybody been able to figure out how to debug a Raspberry Pi 3 model B using SWD? To be clear, I'm looking to debug the Pi itself using SWD. We've tried setting up the GPIO pins to use JTAG-SWD, ...
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5
votes
0
answers
871
views
blank screen on xrdp
xrdp is working up to and until today. I have today "sudo apt-get upgrade" and since then xrdp has stopped working. The login screen comes up but when i get in it is just a blank screen (the aqua one)....
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4
votes
2
answers
3k
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Raspberry Pi: Autostart Program in Full Screen
I put the program leaflet on Autostart by adding
@leafpad to ~/.config/lxsession/LXDE-pie/autostart
Now it starts after the GUI load is finished. But it is not starting in full screen or with ...
- 49
4
votes
0
answers
1k
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Connecting Pi3 ModelB with a Sony PS3 DualShock controller
I bought the following model of Raspberry Pi3 from Amazon.
RASPBERRYPI3-MODB-1GB
which claims to support: Bluetooth 4.1, Bluetooth Low Energy
And I also got a Sony DualShock PS3 controller with ...
- 141
4
votes
0
answers
5k
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Bluetooth repeater/bridge
I was wondering if somebody already tried to create some sort of Bluetooth repeater or bridge? I know they are not the same, but both systems should work for my needs.
In detail, I am trying to ...
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4
votes
0
answers
1k
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FT5406 touchscreen sends events but input does not work
I have a Raspi 3B with the official 7" touchscreen attached. The screen works (showed the under-voltage sign when attaching only the screen controller to a 2.1 A power supply, so I'm connecting ...
4
votes
0
answers
778
views
RPI 3B and Tiny Thermal Printer - Unable to use python library
I'm having trouble hooking up my Raspberry Pi 3 Model B to my Adafruit Tiny Thermal Printer (nb: not the mini thermal printer - this is the one with a mini-USB port built in).
I've got it connected ...
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4
votes
1
answer
2k
views
How to blacklist devices on a raspberry pi 3 router setup?
I've recently set up a raspberry pi 3 as a simple wifi router, using:
Ubuntu 16.04
hostapd
dnsmasq
I've followed the following tutorial and all went pretty smooth: https://frillip.com/using-your-...
- 149
3
votes
0
answers
153
views
Arm Arch Linux 'startx' displays black screen on Raspberry Pi 3
Context: I recently got started with Arch Linux and the whole building your own distro thing. So I put Arch Linux Arm version on my Raspberry Pi 3 Model B v1.2 from the Arch Linux Arm project. I put ...
3
votes
0
answers
359
views
Kivy on Raspberry Pi returning double on_press events
I have an RPi and official touchscreen running Debian Buster and Kivy v1.11.1
using the simple example at https://kivy.org/doc/stable/api-kivy.event.html it is returning double touch events for ...
- 165
3
votes
0
answers
184
views
Is it possible to control servos in both directions on the RPi?
I have been working on controlling servos in one direction with PWM control via GPIO ports on my RPi 3. I've worked with motor controllers that use PWM before and it seems that I should be able to ...
3
votes
0
answers
1k
views
new raspbian image doesn't detect usb cdc device
I have a usb cdc device that works fine in raspbian stretch. But when I change the image to new raspbian buster, my usb device isn't recognized.
lsusb doesn't list my device at all! I've enabled cdc-...
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3
votes
0
answers
294
views
Microphone is not recording with HifiBerry and Raspberry Pi 3
I installed the HifiBerry driver as specified. The Board is recognized and the audio output works fine.
Just the audio input seems to be not working. I checked if the microphone is muted but I can't ...
- 131
3
votes
0
answers
981
views
Timeout waiting for hardware interrupt during work
(Full logs are also posted here)
My RPi3B+ have ArchLinuxARM running on it (armv7h version). Latest kernel and all updates (only packages from official repos + yay installed from AUR). My SD is ...
- 131
3
votes
0
answers
243
views
Android things keeps restarting
Trying to install Android Things OS on RPi3 B V1.2, but before I can -- or shortly after -- I get to the set-up screen, the OS reboots. This happens repeatedly.
Rasperian works great under CPU and ...
3
votes
0
answers
539
views
How can I install the latest kernel from kernel.org to Arch Linux ARM for Raspberry Pi 3 model B?
I am using Arch Linux on Raspberry Pi 3 model B. I want to install a newer kernel (currently I have 4.14.94-1-ARCH kernel installed)
I have downloaded and compiled the mainline kernel 5.0-rc5, which ...
- 147
3
votes
0
answers
187
views
ADXL345. Bits, resolution and g's
I have a Kistler type 8921 which produces 1g (10m/s2) RMS (at 159 Hz). The ADXL345/Raspberry Pi 3 setup should produce similar g's, but currently doesn't.
As can be seen, it is not just about a ...
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3
votes
0
answers
2k
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Raspberry Pi 3B WLAN Interface not found
I have a problem where my Raspberry Pi 3B (v. 1.2, official board) cannot use its onboard WLAN capability.
The onboard WiFi used to connect to the Internet without issue perhaps a year ago.
However, ...
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3
votes
0
answers
342
views
Outdoor Wi-Fi positioning / poor man's GPS on RPI3 Model B
I got used to Google Maps figuring where I am using surrounding Wi-Fi signals, a.k.a. Wi-Fi positioning system. I try it on my laptop and it works, but on my Raspberry PI it doesn't: using Firefox ESR,...
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3
votes
0
answers
242
views
How to scan undiscoverable bluetooth devices with Kali?
I set up a Raspberry Pi 3 with Kali Re4son kernel.
My goal is to scan bluetooth speakers that are already paired. But paired devices don't show up when I do bluetooth scanning with Kali's tools and ...
3
votes
0
answers
3k
views
Rasbperry Pi suddenly stopped connecting to WiFi network defined in wpa_supplicant.conf
My Raspberry Pi 3 running Jessie has been automatically connecting to a WiFi network defined in my wpa_supllicant.conf file for a few months without a problem. Two days ago, the Pi stopped connecting ...
- 41
3
votes
0
answers
1k
views
How to properly trigger multiple Raspberry Pi camera modules via GPIO?
I am working with three Raspberry Pi 3 B boards, which in turns have RPi camera modules V2 connected to each. I followed this very detailed post about triggering another Pi using GPIO pins and it ...
- 31
3
votes
1
answer
2k
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Raspberry Pi 3 & Arduino: [bluetooth.btcommon.BluetoothError: (112, 'Host is down')]
I am trying to send informations from Raspberry Pi 3 to Arduino Uno with bluetooth. I managed to connect the Arduino's bluetooth module with the Raspberry Pi.
But I have this error when I execute my ...
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3
votes
1
answer
1k
views
SSH into Pi working as wireless bridge
I have a Raspberry Pi 3 that I have set up as a wireless bridge. I have a static IP on the ethernet port of 192.168.0.20, and a static IP on the bridge of 192.168.0.30. The Pi is running headless, so ...
- 31
3
votes
0
answers
475
views
Controlling Stepper Motor with Raspberry Pi 3 and Win 10 IoT
I am working on a project which requires operating bipolar stepper motor with Raspberry Pi 3 and Windows 10 IoT core. I am writing the program in C#.
Currently, I am getting the pulses on the motor ...
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3
votes
0
answers
51
views
Can I use Rasp Pi 3 to detect objects from live streaming videos?
I am doing a project on UAV(Unmanned Autonomous Vehicle) for which I need to detect objects from live streaming videos.
Can Raspberry Pi 3 satisfy my needs?
Also how is Nvidia Jetson compared to Pi 3?
...
- 31
3
votes
0
answers
151
views
Implementing a system call for CPU hotplug on RPI3/ModelB
My goal is to implement a system call in linux kernel that enables/disables a CPU core.
First, I implemented a system call that disbales CPU3 in a 4-core system.
The system call code is as follows:
...
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3
votes
0
answers
2k
views
RPi 3 no WiFi problem
Last week I've bought used Raspberry Pi 3 and at the beginning everything worked just fine (WiFi especially). Yesterday I took the board out of its small case in order to measure it (I like to model ...
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3
votes
1
answer
1k
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Raspberry pi 3 openocd debugging jtag scan interrogation fail all zeroes problem
I am trying to debug a bare metal application using openocd (seggers does not provide support for the cortex a-53 so jlink won't work). I installed openocd following this set of instructions.
However ...
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3
votes
0
answers
448
views
How to control the delay perference of GStreamer OpenMAX H.264 encoder module?
I am trying to build up a streamed network video using Raspberry Pi 3 Model B and a USB camera. After reading this tutorial, I made a working pipeline, but the software H.264 encoder is very CPU ...
- 197
3
votes
0
answers
214
views
MQTT TLS not working in Raspberry Pi3
Has anybody got MQTT with TLS working in Pi3 ? If so, please help me to fix my problem.I am using MQTT 1.4 version.
I did following steps-
I generated both client and server cert files as per https:/...
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3
votes
0
answers
5k
views
Setting up a DHCP server on a Pi v3B with Raspbian Jessie?
I'm attempting to set up a Pi as a DHCP server for a private network of ~10 machines. The pi will be connected to a network switch.
So far I've been following this well written guide:
https://www....
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3
votes
0
answers
1k
views
How do I save my game process with RetroPie?
I just got a Raspberry Pi 3 Model B and have installed NES games. How can I set this up for the Raspberry Pi 3 Model B to save game progress on games that should, such as The Legend of Zelda? Once I ...
3
votes
0
answers
187
views
Pi 3 - insufficient USB power available for dual-band Wi-Fi adapter?
This question says
"How much current can draw from the USB ports?
......The limit for Pi3 is 1200mA."
However, my Rosewill RNX-N600UB Wi-Fi dongle will only operate in the 5 GHz band when plugged ...
- 267
3
votes
0
answers
4k
views
Possible to repair Raspberry Pi 3 SD card slot?
I accidentally pulled the pi out of the case before realizing the SD card was still attached. The right pad can still be soldered but the left one appears to have been pulled off. Is there anything I ...
- 131
3
votes
0
answers
685
views
Disable onboard Bluetooth device and remap UART0 on Windows 10 IoT Core
We would like to use Gertbot card on Raspberry Pi 3 to control motors and to read distance sensors. For that, serial communication using UART0 on GPIO pins 8 and 10 is required. Observing Raspi serial ...
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3
votes
0
answers
619
views
QML without X11
Is it possible to run QML files without X_Desktop environment in raspbian Jessie for Raspberry Pi3?
I found this tutorial: EGLFS , but I would prefer if it is possible to compile directly on RPi, ...
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3
votes
0
answers
393
views
Extend router network using Raspberry Pi 3 as access point
I currently am using this guide to create an access point using the RPI3 to create a new network, but what I would like is to extend the network to which the RPI3 is connected via Ethernet so that it ...
- 31
3
votes
1
answer
2k
views
Raspberry Pi 3 Windows IoT Core can't see wifi adapter
I am trying to set up the wifi on my Raspberry Pi 3. On the Networking screen in the web interface, the WiFi adapters dropdown is empty.
I successfully configured wifi on my board in Raspbian so I ...
- 131
3
votes
0
answers
2k
views
Emulate a Bluetooth Keyboard with a Raspberry Pi 3
Raspberry Pi 2 Model B (Raspbian Wheezy and bluez 4.99)
Executes perfectly using a Bluetooth dongle.
Raspberry Pi 3 Model B (Raspbian Jessie and bluez 4.99)
Attempting to pair with Windows laptop ...
3
votes
0
answers
510
views
Windows IoT RPi3 Install Error
I am unable to install Windows IoT on my RPi3.
I have signed up for insider and can start the download of the windows image but after it has downloaded about 500mb it fails with the message:
"windows ...
- 131
2
votes
1
answer
121
views
Struggling with I2C devices
I had 2 devices connected using I2C on my Rasp pi 3b.
A clock RTC8563 and a humidity sensor AHT20. Both were working.
I mucked about with the wiring, and did something wrong, as I smelled smoke before ...
- 129
2
votes
0
answers
52
views
spi overlay driver don't run due to shared pin11
I'm trying to run old FLIR Lepton driver on Raspberry Pi 3 Model B v1.2 (2015).
FLIR SW driver here: https://www.flir.eu/developer/lepton-integration/lepton-integration-raspberry-pi/.
PDF guide here: ...
- 21
2
votes
0
answers
28
views
Real time video processing in raspberry pi 2
Hi i am planning to do real time image processing using opencv python for a differential drive bot using raspberry pi 3 B, what are the factors do we need to consider(like video stabilization, etc...) ...
- 29
2
votes
0
answers
184
views
bond eth0 and wlan0 on combine mode
I'm rewriting my original question as I could advance on my issue.
I'm trying to bond eth0 + wifi on some combine mode to improve transfer rate on with my raspberry pi 3. After reading those docs ...
- 121
2
votes
0
answers
156
views
Wireless display with Raspberry PI 3
So, I Googled around for this, but it feels like almost all questions on the internet about this kind of thing are "how to stream from my laptop to my pi".
I was wondering about the other ...
- 121
2
votes
0
answers
35
views
Moisture sensor gives weird results when connected to a relay
I was about to review the items as faulty when I connected my brain and made a second test.
The sensor is supposed to return 0 when dry and 1 when wet. In my script I repeat the reading 100 times. I ...
- 21
2
votes
0
answers
365
views
pySerial - UART - Determining when a message has actually been sent (callbacks?) (RTS/CTS hacking?)
For reasons (explained at the end of the post) I need to have a pin change state immediately as the UART finishes outputting a set of bytes.
I'm using pyserial & pigpiod on a RPi3B+ and bluetooth ...
- 21