All Questions

0
votes
0answers
23 views

will it Pi? headless home server(s)

I want to run the following: Transmission Sickrage Plex (no transcoding) Openvpn (client) Now for the multiple choice section. Raise your hand to vote: Each in a separate Docker container on a ...
2
votes
0answers
25 views

DS18B20 reading double after long use

I installed two DS18B20s on a pi almost a year ago. They have worked great until the last couple months. I am doing a bit of a stress test on them and have been polling them every second for almost a ...
1
vote
2answers
27 views

Raspberry Pi 3 B+ to Android Phone USB Tethering Inactive eth1 Interface

This is a follow up to Static IP Address for USB Screencast in Raspbian Stretch. Concisely, I want to use USB Tethering to connect VNC on my smartphone to the RPi for use as a remote desktop-type ...
1
vote
1answer
29 views

Two stepper motors with python

I want to make a motorized rc paddle boat type machine for fun. I plan to use two stepper motors to spin two wheels on either side of the boat. I am controlling it with python. I have a master script ...
2
votes
0answers
20 views

How to (securely) trigger actions on Raspberry Pi from IFTTT?

I have a Raspberry Pi 3 with a breadboard that's got an RF transmitter & receiver. I can control 8 Etekcity outlets using Siri/Homekit via homebridge-commander/pilight, however I would like to ...
1
vote
0answers
18 views

Install Firefox non-ESR version in raspberry Pi 3

I know it's impossible to install Chrome (not chromium) on a raspberry pi, and I know that the standard Firefox version for raspberry is Firefox-esr now. But there are some applications that are only ...
3
votes
0answers
24 views

sources.list broken in Raspbian

I have updated the /etc/apt/sources.list file and ended up breaking it. I've restored it to its original contents from my backup as follows deb http://raspbian.raspberrypi.org/raspbian/ stretch main ...
1
vote
2answers
26 views

NOOBS gets stuck when downloading Raspbian

I have a problem with NOOBS. I have tried to download Raspbian onto the SD card directly from NOOBS, and as soon as the download starts, I get the regular message "Please wait while the software is ...
0
votes
1answer
44 views

breath sensor compatible with raspberry pi

I'm searching for a small breath sensor to detect respiratory rate that is compatible with Raspberry pi. Just detecting inhaling and exhaling, how many times you inhale per minute. Is there such thing?...
0
votes
0answers
20 views

Build/Buy 128 Button Matrix

I want to build a system where roughly 100 Buttons can be pressed and start a specific command. Pricecly I want to digitalize a good old Piano, at least as good as possible. As far as google led me ...
0
votes
1answer
24 views

ADS1115 simplest.py works in terminal but not in Thonny

I defined two GPIO pins as SCL and SDA for another I2C, (e.g., i2c3 on busnum=3). ADS1115 was successfully detected by runing (sudo i2cdetect -y 3). Also, the modified simplest.py (where ...
0
votes
1answer
37 views

Internet needed for apt-get?

i try to calibrate my touchscreen for Raspberry Pi 2B, currently the touch does not work (axis seems like inverted). So i came across this website: https://www.waveshare.com/w/upload/1/1e/...
0
votes
0answers
27 views

My Raspberry Pi Flask server stops responding

I have a Raspberry Pi 3. On my Raspberry Pi I have a Python script that initializes a Flask server, the Python script returns some basic JSON. The Python script is initiated on boot using process ...
0
votes
1answer
41 views

Reading Output signal from external circuit using Rpi GPIO Pin

I am trying to read a signal coming from an external circuit thru the use of raspberry pi's gpio. the signal I am trying to read is a 3.3V signal coming from a voltage divider circuit. this circuit ...
1
vote
1answer
27 views

USB Barcode Scanner Serial won't work just freezes/hangs

I am trying to build a basic POS System, naturally I would have a usb barcode scanner and a simple code from here to start. Everything went well from scanning using serial to DB entry and then GUI. ...
2
votes
1answer
44 views

DHT11 sensor and the wrong voltage may have fried my RPi3

I just bought a package of sensors online, a few things were really easy to set up, but the DHT11 (3 pin version) temperature and humidity sensor was giving me problems. Here's what I did: Following ...
1
vote
3answers
64 views

Problem controlling LED on GPIO3

I need to add a status led to my pi zero w and after taking a look at the pin out I decided to put an led between pin 5 and 6. Please see attached picture. I soldered a blue 0805 SMD led directly on ...
0
votes
0answers
10 views

How to use Raspberry Pi3 to make two GSM or GPRS modems in order to create a PPP link

Good day. I need to connect two VHF high band repeaters via GSM or GPRS modems using Raspberry Pi3, in order to create a PPP link. There was a UHF link before, but due to theft from the one site, we ...
1
vote
1answer
14 views

how to capture a single frame using gstreamer

I am using the following command to capture multiple frames: gst-launch-1.0 tcpclientsrc host=192.168.1.2 port=5000 num-buffers=100000000 ! gdpdepay ! jpegparse ! jpegdec ! multifilesink location="...
0
votes
0answers
14 views

Issues with picamera

Hi I am having issues with my picamera, I have installed everything and enabled the camera but when I run the code and try to open the picture taken it says that it contains no data, does anyone know ...
2
votes
1answer
29 views

Turn Up or Down Volume for OMXPlayer 3.5mm Audio Jack

on my raspberry pi i have a speaker wired connected via aux cable to the 3.5mm audio jack. My first question ishow can i get rid of the noise coming out of my 3.5mm audio jack when keys are pressed or ...
2
votes
1answer
45 views

Static IP Address for USB Screencast in Raspbian Stretch

My new Raspberry Pi 3 B+ is running the latest Raspbian Stretch OS. I've been trying to connect it over USB to a phone running VNC to act as a remote display. I followed the tutorial here, but I've ...
3
votes
2answers
76 views

How to install updates without internet on Raspberry? [duplicate]

I want to calibrate my LCD screen, but i have no internet connection to my Raspberry Pi 2B. The terminal commands I would use with internet on the Raspberry Pi is cp LCD-show/xinput-calibrator_0.7.5-...
1
vote
1answer
58 views

Connecting several (roughly 100) Buttons to the PI (USB?)

I havent found anything, but iam sure there is already info on the topic. So even just a link would be helpful for me. I want to build a Jukebox. So pretty simple. Around 30 Buttons, if Button is ...
0
votes
1answer
20 views

RPI 3 B+ configured as wireless extender (AP + client) troubleshooting

Im trying to configure my RPi 3 B+ as a wireless extender using the internal wifi chip aacting as the client and AP. Ive been following this guide as it seems most suitable for os/model/application ...
0
votes
1answer
48 views

Serial Communication from Raspbian using Python to Arduino

In Terminal its working but not working using python code. My Code: import serial from time import sleep ser = serial.Serial ("/dev/ttyS0") while True: received_data = ser.read() ...
1
vote
1answer
24 views

Bridge and Wifi Webserver on Raspberry Pi 3 B+ (Raspbian Stretch)

So I am trying to realize the following Setup with a Raspberry Pi 3 B+ (latest Stretch Lite): Modbus TCP/IP Device with a static IP Adress connected to the Raspi Pi via Ethernet. Raspberry Pi ...
0
votes
0answers
17 views

Simultaneous frame processing and Live stream video using PiCamera and RPi

I am building an application for Real-time Video analysis using Deep learning and so far am successfully able to, Capture set of frame [with PiCamera@4fps/ 10 Sec Video] using picamer....
0
votes
0answers
8 views

raspberry pi 3 with Kodi Leia installed

I have the above configuration and successful connected it with my linksys ea8100 wireless router. Unfortunately, my ea8100s failed me and I replaced it with linksys ea9500. However, my pi now does ...
0
votes
1answer
29 views

Raspian apt returns to prompt without doing anything - any ideas?

apt and the associated tools are not working using any of them: sudo apt, apt-get, apt-config, aptitude, ..., just returns me to the prompt. I checked /var/log/apt and nothing is getting written to ...
2
votes
1answer
28 views

SanDisk Ultra SD Card with Raspberry Pi 3+ Suddenly Stopped Working (and is Overheated!)

It has been about a week since I booted into my Raspberry Pi. This evening when I booted it, raspberrypi.local could not be detected on the network. However the card was burning burning hot I ...
5
votes
1answer
69 views

Execute script on boot (with boot folder)

I'd like to know, whether there is an option to execute a script on the first boot of Raspberry. There is a catch though. I'd like to be able to put the script in the boot folder. Since it is ...
1
vote
1answer
18 views

Shuffling Music with OMXplayer on Raspberry Pi

So here I have created a loop that lists off each file in a folder and plays it using this python code: global shuffleVar listOfFiles = os.listdir('/home/pi/mysounds/') ...
0
votes
1answer
19 views

Change value of global variable in a function with parameter [on hold]

I got a code from the internet for my project, and there is a function with parameter that i need to make change of global variable value X=1 #GLOBAL HERE @app.route('/',methods=['POST']) def index():...
1
vote
1answer
40 views

Risks of powering short LED strip directly from GPIO

I am trying to understand the simplest ways to power a short LED strip of 30 WS281x lights. Most of the instructions I’ve found mention using a separate power supply for the LED’s, but is it ...
-1
votes
1answer
39 views

Why don't my motors rotate?

I know I asked this question before, but this time I will give a more clearer description. I have been using the raspberry pi for approximately 6 months now. I am making a very simple robot car that ...
0
votes
1answer
21 views

Pi Zero onboard time lapse camera read only file system?

I'm trying to build an onboard time lapse camera for my motorbike using a Pi Zero and a Pi camera powered by a USB port of my 5V 2.1A charger socket which has a on/off switch. since I'd rather avoid ...
0
votes
0answers
21 views

Setting up an SSL certificate on a web-server hosted by a Raspberry Pi?

I'm developing a bat detector and I've set up the Raspberry Pi to operate its own Apache Web server on its own access point. The idea is that client devices can then connect to the access point to ...
3
votes
1answer
47 views

Multiplexing to 1000 devices, Raspberry Pi and Python

All, I'm working to develop a piece of hardware that allows me to control 1000 outputs (servos) from a single output pin. I'm using pigpio on a Raspberry Pi B3 with python. I'm also using an array ...
0
votes
0answers
18 views

How to install Visual Studio Code Editor on latest Raspbian Stretch 2018?

I have followed many guides that include these:- https://code.visualstudio.com/docs/setup/linux Yet, I am not successful. I follwed the installation guide for ubuntu, sice Ubuntu and Raspbian are ...
3
votes
1answer
32 views

i2c-bus electrically damaged due to wrong wiring

In a hurry I mistakenly connected the VCC of the Bmp280 to ground and the ground of the Bmp280 to 5V. Afterwards, I checked the i2c-bus with another sensor but i2cdetect -y 1 only reported --. Q How ...
-1
votes
0answers
12 views

how to connect raspberry pi to the cloud [on hold]

caca is very yuky and camera is not working for som reasons in different situation simulate this circuit – Schematic created using CircuitLab
0
votes
0answers
27 views

Installing dlib on raspberry pi3

I've been trying to install dlib on my raspberry pi 3 since past 2 days, but every time end up with a frozen screen. The pi is running on the latest raspbian and and everything seems like up-to-date, ...
0
votes
2answers
32 views

Turn on multiple output with single button

I'm working on project with single input multiple output logic. The project require two or more led controlled by single button (momentary). the steps are like these : 1. When the button pressed for ...
1
vote
0answers
32 views

Install Windows 10 IoT on 3B+?

I bought a 3B+ a few months back and have been experimenting with it with Raspbian, but I recently discovered it is possible to run Windows 10 IoT on it and since I am mainly a C# developer, I want ...
2
votes
0answers
33 views

Rpi Zero W - How to automatically accept bluetooth pairing and log mac and info request?

I am using Raspbian Stretch 9.4 on a Zero W. The goal is to deploy it headless for long periods of time where it will broadcast a specified bluetooth signal. When someone tries to connect to it, it ...
1
vote
1answer
15 views

Earliest place in boot for output to I2C LCD (not HDMI)

We're using an embedded Raspberry Pi that uses a (I2C) 4x20 LCD (character) instead of HDMI. Since the boot process can take some time I'd like to get something on the LCD as soon as possible to say ...
1
vote
0answers
31 views

changing raspbian smtp to send via Hotmail NOT gmail?

I feel uncomfortable sending out emails from my Pi via gmail but can't see how to change /etc/ssmtp/ssmtp.conf to use hotmail instead. Anyone done this please and if so could I see the /etc/ssmtp/...
0
votes
0answers
60 views

proxy is working locally,But not with remote host

I have install 3proxy in rapberrypi.Raspberrypi is connected with 4g dongle.My proxy is working fine in locally,but I can not connect it to remote host(Vps).It shows "Error: I could not see your ...
1
vote
1answer
21 views

Connect touch screen 3.5" LCD and MCP3008 at the same time

Reposting this question asked by someone else a few years ago because it was unanswered and I am facing the same problem. I want to use a touchscreen LCD (3.5" TFT) and a MPC3008 ADC at the same time ...

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