For questions that apply specifically to the Raspberry Pi Model 3 and not other/all models.
0
votes
0answers
16 views
What happen if i use a fake sd card to install raspbian [on hold]
I bought a sd card but i am not sure if this card is fake . I tried to install noobs and raspbian but i failed
The green and the red led are working
0
votes
1answer
14 views
Switch Raspberry Pi 3 between access point and non-access point
I used this tutorial to make my Raspberry 3 an access point. After following that, I can't connect to the internet—neither via Wi-Fi nor via cable.
With this tutorial when I see the DHCP status—it ...
0
votes
0answers
23 views
RPi3 's usb port fail
Mouse and keyboard does not work properly when connect to my pi3 modelB's usb port. It worked perfectly a day ago. But wifi dongle can process as usual.
dmesg show below
[ 3410.013515] usb 1-1.2: ...
1
vote
0answers
16 views
Select time zone not working in Android Things default screen
I recently reset my Android Things on my Raspberry Pi 3 because it was unable to find my own WiFi. After the reset I tried to go into settings and change the time zone to GMT+02:00.
If I click at ...
0
votes
4answers
55 views
Raspberry Pi 3 will not boot after I got it working
My RPi 3 will not boot even after I have looked at every possible trouble shooting technique I could find. I plug it into the power and all it does it turn on the red led. I had it working for some ...
0
votes
0answers
26 views
Rpi not reading data from Sense HAT due to missing frame buffer
I'm having trouble getting my RPi 3 to listen to a Sense HAT.
The Sense Hat is getting power and the RPI is aware of the Hat.
pi@BBLPi1:~ $ ls /dev/i2c*
/dev/i2c-1
pi@BBLPi1:~ $ i2cdetect -y 1
...
0
votes
1answer
36 views
eth0 to wlan0 router stretch
I have the following situation
I would like to make the Internet connection on wlan0 of the Pi available to all devices connected on eth0.
I'am using Raspian Stretch, predictable network interface ...
0
votes
0answers
10 views
Couldn't import Django
I used
django-admin startproject [project's name]
but I saw file manage.py:
#!/usr/bin/env python
import os
import sys
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE",...
0
votes
1answer
25 views
Android Studio on Raspbian
I'd like to use my Raspberry Pi for programming, among others, Java. As an editor, I would like to use Android Studio.
Is there a kind of Android Studio to install on the Raspberry Pi?
0
votes
1answer
26 views
Help in understanding how to use Raspberry Pi's “official” 7 in. LCD from Python script
Let's say I have a Python script that receives an IR signal and lights up an LED. We'll call it a "hit" indicator. In the IR transmission, let's say a person's name was embedded in the signal. How ...
1
vote
1answer
23 views
Using hardware PWM and audio simultaneously
I am developing a project on a Raspberry Pi 3 B+. I am using the PWM0 channel to send a custom-made IR signal using PiGPIO waves. I gather it might then be possible to use PWM1 for mono audio; is that ...
0
votes
1answer
15 views
Where to put manually compiled binaries?
I manually built the latest version of BlueZ (5.50) and I need to access some tools from Python. Where is the recommended location to put compiled binaries so that they are accessible for all users?
...
0
votes
2answers
53 views
RPi 3B+ Does not boot after first time, not reading SD card (RLED ON, GLED OFF). Works on RPi A+
I've got a problem with my Pi3 B+ not reading my microSD card on boot (Red LED ON, Green LED OFF). The microSD I am using is a SanDisk U1A1-SDSQUAR-016G-GN6MA. I prepped the SD card with NOOBS and ...
1
vote
2answers
39 views
Device discovery without wifi [on hold]
In systems like Alexa or Sonos, the mobile app asks for location access and from there it tries to find the device.
After that one is prompted to enter the wifi details and attach the device with the ...
0
votes
0answers
16 views
change screen background by remote no screen like PuTTY
I tried used pcmanfm change screen background by vnc and remote by Window mstsc.
I knew vnc made the same screen between pc remote and raspberry, and mstsc couldn't. So I need remote like run python ...
0
votes
0answers
13 views
Raspberry Pi 3 Bluetooth connection with headset and with mobile phone through soundcard
I want to connect wirelessly a headset with Raspberry Pi 3 and then connect my mobile phone with raspberry pi through audio jack pin/sound card.
*) I have successfully established connection wireless ...
0
votes
0answers
12 views
How do I save my retro pi saves without a PC?
My Retro Pi SD card (a sandisk ultra 64 gb) cannot be read by my pc without reformatting (which would delete everything on the card). However, my Raspberry Pi 3 Model B can read the card and play the ...
2
votes
2answers
45 views
HDMI vs DSI, pros and cons?
I am curious what the main differences are between using the HDMI output or the DSI connector to hook up a screen?
I understand that HDMI carries audio while the DSI ribbon connection will not, and ...
1
vote
1answer
44 views
Webserver on Pi 3 works, but not on pi 0W
So I have a bit of a doozy here. I have a webserver that works on my pi 3, and on the pi 3, it also can SSH. But once I power off, and put my SD card into my pi zero w, the webserver doesn't work, I ...
0
votes
0answers
17 views
Setting different time intervals to turn on/off a pump over the web on a Raspberry Pi
I am planning on writting python script that will allow me to choose a time interval that a pump will be working. The time intervals would be 15 min on and 15 off, 10 min, 5 min and on all the time. ...
2
votes
0answers
51 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,...
1
vote
1answer
49 views
Cannot ssh to Raspberry Pi 3
After running for a few hours, my local Raspberry Pi 3 refuses ssh connections, the green LED is lighting up sporadically:
Starting Nmap 7.40 ( https://nmap.org ) at 2018-08-13 10:01
Nmap scan ...
0
votes
0answers
23 views
Rpi stops giving / reading encoder data
I am working on a hobby project and I have written the code to take encoder data and calculate the motor RPM which works fine. But sometimes it is very strange that I stop getting any data from the ...
1
vote
1answer
17 views
Strange signals on GPIO 14 & GPIO 4 when ribbon cable is attached to GPIO
I'm using RP3B.
I'm using piscope, as I don't have an oscilloscope available.
After I boot my RP3B with nothing attached to the GPIO port, if I start pigpiod and piscope, I see all my GPIO with a ...
0
votes
0answers
42 views
Can raspberry pi cases cause static damage?
This may be a stupid question, I'm not sure.
Almost all of the raspberry pi cases are made our of plastic, and this made me think, if I wasn't it put the raspberry pi inside a case, and then put ...
0
votes
0answers
21 views
Raspberry Pi 3 Bluetooth Turn on issue
I'm trying to turn on built-in bluetooth on fully updated raspberry pi 3 running Jessie
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install bluetooth bluez blueman
sudo systemctl start ...
-1
votes
1answer
29 views
Python script not accepting import function
I've been writing a simple python script, and I import the GPIO library, and the time library. I have the following code.
print()'Importing GPIO library'
import RPi.GPIO as GPIO
print()"Importing ...
0
votes
0answers
14 views
Setting up live cam feed on university's wifi? [closed]
I want to set up a live cam on my University's wifi to watch my CNC do its thing. I can probably set it up properly and access the feed within the wifi but I would also like to watch it at home for ...
0
votes
0answers
58 views
Raspbian Stretch lite headless, wifi not connecting
Am using a Pi model 3 and the latest (2018-06-27) Raspbian Stretch lite, and have only added wpa_supplicant.conf (below) and ssh (empty) in the "boot" partition.
country=*CODE*
update_config=1
...
0
votes
0answers
12 views
Pi with 2 Phidget pH / ORP adapter 1130_0
I am trying to get a PH prod with a Phidget pH / ORP adapter 1130_0 to work with my Raspberry Pi 3.
But does not want to work for me. I am a newby with the Raspberry Pi so it's probably something I ...
1
vote
1answer
32 views
No w1_slave on DS18B20 on Raspberry Pi 3 B+
In any of these cases the red status LED on the sensor lights up. The Sensor DS18B20 is connected to the Raspberry Pi 3 B+ to the 5v on the GPIO pins. Using the 3.3v pin makes the light of the sensor ...
0
votes
0answers
16 views
Communication between Raspberry Pi 3 and PSoC with CAN BUS Protocol [closed]
i'm attempting to connect Programmable System on Chip (PSoC3) with raspberry pi 3 model B with can bus protocol. my psoc is connected with mcp 2551(CAN transceiver) and raspberry pi is connected with ...
0
votes
1answer
17 views
Service won't run python srcipt with privileges RASPBIAN JEESIE
I have script in python that need to be run with "sudo" keyword. Everything because I'm accessing "/dev/mem". Now I need to start this python script on RPi startup. So I create simple service that ...
0
votes
2answers
36 views
Powering Raspberry Pi 3 with 5v/3A Buck converter
I am using Raspberry Pi 3 with Raspbian OS. I will be powering my Pi 3 board from a output of 24V battery. So I will be using a 5V/3A buck converter. I will be connecting my GPS, Pi camera and 4G ...
0
votes
0answers
10 views
How to do Maven build of Raspberry code on MacBook
While trying to do maven build on MacBook for Raspberry Pi 3 B+ board I am getting the following errors (I have written a simple program using pi4j library).
The problem is while linking dynamic .so ...
1
vote
1answer
65 views
SPI only returning zeros with Raspbian (It works with IoT core)
I am using this ADC connected to the channel 0 of my Pi3 board for reading values from a sensor. In IoT core, I was using a very simple code for testing the my device, and it worked fine. The C# code ...
0
votes
1answer
53 views
Differences in GPIO between Raspberry Pi 3 B and 3 B+
Is there any difference in the GPIO layout between Raspberry Pi 3 B and 3 B+? If yes, please provide the differences.
0
votes
0answers
20 views
How to create installer files in Raspberry pi
I have created a program in Raspberry pi and I am running it using the command python myprogram.py . Is it possible to create the installer file of this program? that means after installing this ...
0
votes
1answer
41 views
Wpa_supplicant with openwrt router ‘could not read SSID from driver’
Arch Linux ARM was installed successfully on a Raspberry Pi3 which will be added to a small network. The first attempt at setting up wifi on the Pi3 failed, showing alarm wpa_supplicant[323]: wlan0: ...
0
votes
0answers
12 views
RFM69 Radio Transceiver: Arduino is not registering acknowledgement for transmission sent by Raspberry Pi
I am building a system in which an Arduino Uno with an RFM69 radio chip transmits data to a Raspberry Pi running a script in Python.
I am using the RFM69 library for both scripts:
Arduino: https:/...
1
vote
1answer
51 views
This module can only be run on a Raspberry Pi!
I'm running daemon python file in virtualenv and has a Error:
File "rpi_daemon.py", line 5, in <module>
import RPIO
File "/home/pi/python_virtualenv/local/lib/python2.7/site-packages/...
0
votes
0answers
27 views
arecord: main:788: audio open error: No such file or directory
I'm getting the above error while I am running this script on Raspberry Pi 3 (Raspbian Stretch lite)
arecord --format=S16_LE --duration=5 --rate=16000 --file-type=raw out.raw
output of aplay -l is
...
0
votes
1answer
16 views
Connecting arduinos to RPi and sending data to cloud
Can I connect 9 arduinos to RPi,If connected then I want my arduinos to transfer data to RPi through WiFi and that data i want to transfer to Cloud, is that possible?
2
votes
0answers
13 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 ...
1
vote
1answer
35 views
WPE - WebPlatform For Embedded built directly on Raspbian Stretch (HW Support)
I'm trying to build WebKitForEmbedded https://wpewebkit.org/ but this is disaster. I've created another post about this issue (https://stackoverflow.com/questions/51578580/wpe-build-installed-directly-...
0
votes
1answer
27 views
USB and Ethernet dont works after upgrade Raspbian [duplicate]
After upgrading the Raspbian operating system, I do not recognize the USBs (any of the 4 inputs) or the network port. I have a wireless keyboard and mouse connected via USB and I have also connected a ...
0
votes
1answer
30 views
Read GPIO pin on web page
I was able to control an led from a web page using the following code. when I call http://myip/pinon.php it will light up the LED and http://myip/pinoff.php will turn off the LED.
pinon.php
<?php
...
1
vote
1answer
43 views
Connecting an output pin to an input pin
Currently I am using 2 pins, one as output and one as input. The output pin is operating a solenoid circuit. My question is, is it safe to connect the output pin to a input pin even because I want to ...
1
vote
1answer
54 views
My new raspberry pi don't boot
I've bought a new raspberry pi with a power adopter (5V, 3000 mA). I've written the rabian(2018-06-27-raspbian-stretch.img) image in sd card(8 gb) using win32 Disk Imager. the red light is active, ...
1
vote
2answers
61 views
On a Raspberry Pi 3 running Stretch, how do I configure dhcpcd to call wpa_supplicant automatically and/or persist the connection through a reboot?
My /etc/dhcpcd.conf file is configured so that if I manually run this wpa_supplicant command from the terminal:
wpa_supplicant -B -D nl80211 -P /var/run/wpaSupplicantPid.pid -i wlan0 -c /etc/...
