All Questions

I am using a Raspberry Pi 3B+ with servomotor shields to control multiple servomotors at once with Python. I know that the travel angle of a servomotor is controlled using PWM. So there exists a ...

I have two simple scripts, one in Python, one in bash to turn on and off a LED. I don't know what I'm doing wrong but if a run the bash script nothing happen, while the Python script It works flawless....

I am testing my Raspberry Pi IO pin because I realize some of my IO pin is not functioning. So I wrote this python program to test all the IO pin import RPi.GPIO as GPIO import time GPIO.setmode(...

I never had a Pi before and want to get me a pi-hole for my network. Is it possible to run pi-hole on a pi and some other applications like: That one that emulates chromecast? MiracleCast? Something ...

I am looking for RP command to display the serial port properties, in windows this is done using mode command as per this link. https://stackoverflow.com/questions/20690073/serial-com-port-timeout-...

I have a ws2811 LED strip that I was powering using an arduino, but I want to do some more complicated things with it, and figured my old raspberry pi would be perfect. So I followed a tutorial online ...

I have a simple code for PIR sensor to detect a movement, which works as expected. Code: from gpiozero import MotionSensor import time pir = MotionSensor(4) while True: pir.wait_for_motion()...

Hello guys I am currently working on a project. and I would like to turn on a GPIO pin when my LED on the circuit below turns on. I'm lost to where I should tie my input GPIO pin. please help. Thanks!

Were you ever successful big-banging a second i2c bus on the RPi 3? I've seen different sites showing a 'dtoverlay', but it doesn't seem to work for me. I see a result of a "i2cdetect -y 3" but very ...

I have a Pi 3 running stretch which uses dhcpcd to configure its one network interface, eth0. But it also acts as the dhcp server for my LAN, courtesy of dnsmasq. The dhcpcd.conf file spells out ...

I am trying to run my raspberry pi by using putty but i keep getting network is unreachable. I have try run it on other device it was working well

I have issues creating a tool-chain for cross compiling Raspberry Pi 3 Qt applications through Ubuntu. I used directions from this guide, https://wiki.qt.io/Raspberry_Pi_Beginners_Guide, to help me ...

i have set up hostapd and dnsmasq and ran into some issues. at first the issue was that hostapd didn't recognized the driver. after i deleted that line it did start up. then dnsmasq told me that there ...

I am experiencing the following issue: I connect a USB webcam (Logitech Quickcam Pro 4000) to my Raspberry Pi 3 B+ and take a picture using fswebcam and looks good. Sometimes I take a second picture,...

I have similar issue as mentioned in below link Raspberry Pi 3 B - no ping from Windows Computer on LAN The pi model is 3B+ and have installed latest NOOBS from the below https://downloads....

I've been trying to setup my pi 3 B+ to be a VPN router, im using pureVPN as the service and have a combination of pureVPN's guidelines and the following two setup guides first the wireless access ...

I'm using a Raspberry Pi 3 Model B running Android Things hooked up to a projector with a built-in speaker. The app is designed to relay a text-to-speech announcement every few minutes, but it just ...

I tried following this tutorial to change mode of my Huwaei E3372 modem https://blog.unixweb.de/usb-stick-lte-telekom-magenta-eins-huawei-e398-modem-raspberry-pi/ System Raspberry 3B+ OS: Raspbian ...

I have 4 raspberry pis and one picamera. I wish to distribute my OpenCV task among the 4 pis. I haven't been able to find any good resources for how I could this efficiently anywhere. An approach I ...

I am getting a signal at 1 GPIO which i need to read at an interval of exactly 10^ (-6) seconds. I am using wiringpi.h in C and the issue is that digitalRead() also takes some time thus i am not able ...

I'm trying to send image(3MB) captured by one pi to another pi, external WIFI or setting up one pi as AP is not possible due to strict regulations, all I can use are the two wires. Currently I'm ...

I've tried to include as much information as possible, but if it isn't relevant I will remove it. I purchased a Raspberry Pi 4 months ago, and I've been using it to run some CRON jobs. I have a ...

I am running Raspbian 4.19.34 with HDMI monitor (FullHD). I bought 5" LCD which connects to Raspberry using GPIO pins (by rpi rgb lcd and vga board). I am trying to get it to work like 2 screens. ...

I am a beginner with electronics and RPi. I have a Brushed DC Motor that runs at a constant 13V and draws about 4-5 A while running and about 18-20 A at stall. It also has a single Hall effect sensor ...

Every time I install 2018-11-13-raspbian-stretch-full.img or 2018-11-13-raspbian-stretch-lite.img on my SD card and plug it in the Raspberry Pi 3 B+ device, they first time it runs fine but I am ...

I went through a tutorial on thepi.io. However, my AP isn't showing up or not working. I ran the: sudo hostapd /etc/hostapd/hostapd.conf then it came back as: failed to create interface ...

I have the GPS daemon running as user gpsd: /usr/sbin/gpsd -N /dev/ttyUSB0 /dev/ttyUSB0 I have gpxlogger running as root: gpxlogger -d -f /data/%Y%m%d-%H%M%S.gpx Initially, all what gpxlogger ...

I've managed to read UART input by SLRO and SLR commands from pgpiod, however, SLR returns UART bit-banged data in the following format: [number of read bytes] [bytes] http://abyz.me.uk/rpi/pigpio/...

So I am making a Mq135 sensor and the wiring can be found on: circuit.io/app?components=9443,200000,398790 It isn't shown but the AO is connected to channel0 via the breadboard the code is : #!/usr/...

For my ceramics oven I had 3 phase power installed. But power consumption according to the meter is way higher than the nominal 7KW the oven consumes. A friend told me that if the phase (or sinus) is ...

"How Do I configure a local caching DNS stub Resolver using "systemd-resolved"?" I've been using BIND to enhance performance by caching name queries on hosts. Since systemd-resolved is part of the ...

I am planning to make a microphone and speaker system to amplify my voice just like a normal microphone does. I have a sound sensor and a speaker... is there any Python code that I can use?

illegal instruction when importing opencv into python compiled opencv3 for python 3 by using these commands $ cd ~/opencv-3.3.0/ $ mkdir build $ cd build $ cmake -D CMAKE_BUILD_TYPE=RELEASE \ -D ...

I am attempting to turn on/off my display via a webcam motion detector. The module throws the commands vcgencmd display_power 0/1. this works fine except that once the monitor is off.....the pi ...

I'm using chromium browser in kiosk mode to display a web page (Raspberry Pi 3b). I'm using this for professional purpose, this means that once I sell it to customer, it is expected to work smoothly (...

What I've done to deal with the problem I reset the MSP430, clearing the hung state. I've slowed down the I2C clock's frequency, beefed up the Power Supply, changed pull-up resistors - no change. ...

When trying to run sudo apt-get update, I get three lines of output when all is said and done: Hit:1 http://archive.raspberrypi.org/debian stretch InRelease Hit:2 http://raspbian.raspberrypi.org/...

I recently installed PiVPN. Although it works, I have noticed that after about 20-30 seconds of 'screen off' time, the phone's connection will drop from wifi to 4G. This only happens when I am using ...

I am trying to turn on the network option in raspi-config, but when I do, I get this error: could not communicate with wpa_supplicant Then I hit enter to continue and I get this message There was ...

Is it possible to connect to the "Pi zero W" via usb-network, while wifi connection is already set up and working? My observation: 1.) initial Pi Zero W setup. Pi is attached to the notebook (OS: ...

I'm trying to deploy my flask web app using lighttpd. I created this hello.fcgi file #!/usr/bin/python from flup.server.fcgi import WSGIServer from hello import app if __name__ == '__main__': ...

I'm not a complete beginner, nor am I a total expert. Which Linux distro will go better than Ubuntu? I want one with which I can handle complex IoT easily and also browse the net and play games and ...

When I tried from firebase import firebase running in the Python 3 (IDLE) and Thonny Python IDE, it gives an error likes this at the first line: Traceback (most recent call last): File "/home/pi/...

OK I bought the Banggood P1F1 DAc v1.0 but can't figure out how to connect it. Any help would be appreciated.

I have a couple of old IPad 1s' that are sitting around collecting dust. I am considering replacing the internals with an sbcy like the rpi. Has anyone replaced an IPad 1 board with a sbc? ...

I'm trying to get 4 Wifi adapters running off the Pi (overkill I know), the adapter in question is the Alfa Network AWUS036NHA, the Pi runs smoothly and reads the adapters as I plug them in one by one ...

My objective is to program a print out a reading, but I want to delay the reprint so that its not spamming me with the reading constantly. try: cpuFile=open("/sys/class/thermal/thermal_zone0/temp","...

I used to overclock my Pi 3B+ on Raspbian by modifying the /boot/config.txt file, but how can I do this on Arch Linux ARM? I can run Arch Linux successfully.

I just flashed a MicroSD card with Ubuntu MATE. I booted up my Pi 3 Model B with it and the monitor is just showing a black screen. The monitor looks like it is connected to the Pi, because it is on ...

I have problem with my Raspberry Pi 3 b+. I think the SD card slot is broken. I don't have a monitor, so I am using VNC viewer to remote my Noobs. I installed Noobs on my SD card, but when I plug it ...