All Questions

0
votes
0answers
3 views

Possible to Power an IP camera from Pi

I have a raspberry pi 3 b+. I was thinking instead of using an USB camera or the camera module would it be possible to connect an IP camera? The raspberry pi will be powered by a battery and the pi ...
2
votes
3answers
613 views

Motor running slow using PWM

I'm new to PWM. This is my motor and controller. When I have the jumper in (ENA pins: I assume this gives the PWM pin the full 5V, as that is what the controller board runs on). My 6V 47 RPM motor ...
10
votes
3answers
18k views

How to mount Time Capsule from Raspberry Pi

There is a 2TB Time Capsule on my home network (IP 192.168.0.1). How can I mount the Time Capsule's disk from my Raspberry Pi, automatically after reboots?
0
votes
0answers
4 views

Pi stopped booting after one night

Last night I set up my Raspberry Pi Model 3B+ as a Samba Server with an External Hard drive. After connecting to it on one of my PCs, I went to sleep. I also had VNC Server set up on the Pi so I had ...
1
vote
1answer
203 views

How to use the LTC2365 ADC with the BCM2835 library?

When I used the library with MCP3008 ADC, this is the code that I used: #include <stdio.h> #include <time.h> #include <bcm2835.h> int main(int argc, char **argv) { float seconds; ...
0
votes
1answer
265 views

Properly installed Kivy on Pi3B won't exit or show mouse/cursor moves

I have set up kivy to where I can successfully launch the demos and even my own hello-world apps on a Raspberry Pi 3B. I have two problems that do not seem to have any good answers on the web at this ...
1
vote
2answers
101 views

Raspberry Pi SD in RAID1 with a USB-Stick

I am using my raspi for my smart home monitoring and I don't want any system crashes because the SD card fails. So is there a way to build a raid 1 with the SD card + an additional USB stick (or maybe ...
0
votes
2answers
198 views

Pigpio belt speed encoder

I'm trying to read pulses from an encoder to measure belt speed. My encoder is 500 ppr. I have approx 2400 pulses per meter and I need to measure speeds upto 450 meters per minute. Can anyone help ...
0
votes
2answers
22 views

Get different values from potentiometer even not touching

I have a potentiometer that is used to adjust volume level along with MCP3008 but even if I don't touch it, its values are going and coming as following. Press Ctrl-C to quit... Channel 0 minus 1: ...
0
votes
2answers
58 views

Writing to GPS HAT on Raspberry Pi Zero W Never Returns Anything

I have attached a GPS HAT to a Raspberry Pi Zero W running RASPBIAN STRETCH WITH DESKTOP. When I SSH in to run a simple Python script that writes to the HAT serial port, nothing happens and I am not ...
1
vote
1answer
4k views

Midori FullScreen mode on boot

I have setup my Raspberry Pi 3 with Midori, X11-Server, Unclutter and Matchbox. Created a small bash script that will run midori in full screen mode that is fairly like this one: #!/bin/sh ...
1
vote
1answer
216 views

How do I get Swift working on my Pi 3b

I am a longtime iOS OS X developer who's switched most of his work to Swift. Now that Swift is open source, it has been offered for non-Apple ARM devices like the Pi. Based on my reading, it looks ...
0
votes
1answer
21 views

Compatibility With GSM/GPRS A6

I'm working with an A06 V2 connected to a Pi zero. Using AT commands to send SMS functions correctly. I try to send MMS using CMMSXXXX commands There is problem. The first commande must by AT+...
0
votes
0answers
6 views

Original Raspberry Pi B, video playback choppy on Pi_Video_Looper software from Adafruit

Installed NOOBS on an 8GB SD card and installed Raspbian. Then, installed Adafruit's Pi Video Looper. Inserting a USB stick with a video, the 1280x720p video played back choppy, not fluid. I severely ...
0
votes
1answer
10 views

Help needed with GPIO and a remote controlled gate relay switch

I am very confused and hoping someone can point me in the right direction. What I would like to achieve is converting an external relay switch (from a normal everyday gate receiver) into a signal ...
0
votes
0answers
5 views

Keyboard layout Odoo PosBox

I'm using a Raspberry Pi 2 Model B Rev 1.1 with Raspbian GNU/Linux 9 (stretch). When I Try to change the keyboard layout in raspi-config I get following error: pi@raspberrypi:~ $ sudo raspi-config ...
0
votes
1answer
12 views

MCP3008 and Raspberry Pi Zero

Can I use MCP3008 to input analog signals to Raspberry Pi Zero? If not, Which is the cheapest version of Raspberry Pi?
0
votes
0answers
7 views

Unable to detect pi cam

I have a RPi 2 B for which I recently got a PiCam. I connected it to my Pi and when I powered the Pi a red LED on the cam came on. I tried enabling the camera module in sudo raspi-config , it even ...
5
votes
1answer
271 views

Kernel/Firmware as Debian package

It says on the official site that "the kernel and firmware are installed as a Debian package, and so will also get updates when using [apt-get upgrade]" I run apt-get update / apt-get dist-upgrade ...
2
votes
1answer
202 views

How can I get Belkin N600 DB adapter to work on Raspberry Pi?

It shows up in lsusb but it doesn't light up or work? Are there any drivers I can download? I have tried some solutions but this doesn't work or any other variants of it: sudo apt-get install ...
0
votes
0answers
10 views

5v pin usage for 433mz transmitter receiver

I've bought a 433mhz transmitter receiver and I made a check on model SODIAL(R) 015274A2 the strange is in two links we have 2 differente specs, one says: https://www.amazon.com/SODIAL-433Mhz-...
0
votes
0answers
6 views

No IP after ifup

I have a problem with the roaming option of wpa_supplicant on the raspberry pi. I tried to configure roaming and it works, but far from good. Most of the time the pi just dont connect to another ...
0
votes
0answers
8 views

raspberrypi-bootloader error during apt-get upgrade after restore form backup, how to fix?

I recently restored a pi 3 from a backup. Before the incident that required the restore I had it booting from a USB SSD hard drive. To restore the operating system I simply copied the root directory ...
0
votes
1answer
206 views

Can't get past rainbow screen with Kali install process

I am new (to all of this, Pis, Linux, etc). This is my first real attempt at working directly with hardware as well. I needed a new project so I got a Canakit started set which came with a Raspi 3B+,...
0
votes
1answer
42 views

Connecting Raspberry Pi 3 with Huawei Surfstick 372

I tried to connect my Raspberry Pi with the Huawei Surfstick. All the tutorials i watched so far didn't helped me. If i plug in the Surfstick the raspberry shows that it is associated with it and has ...
0
votes
1answer
17 views

Why is my RTC DS3231 but seems DS1307?

I bought a RTC DS3231 because of the accuraty of time (2ppm, I was searching an accurate RTC). When I received it, I checked that in the encapsulating it is as well marked like DS3231. But, after ...
3
votes
1answer
244 views

Creating a new user and starting a graphical session causes black desktop

I am using a Raspberry Pi 2 Model B running the latest version of Raspbian Wheezy (Raspbian Wheezy 2015-05-05). I created a new user separate from the default user "pi" and I am unable to create the ...
-1
votes
2answers
18 views

How can i Get 5 Volt output with GPIO

I am using Raspberry Pi 3 B+ and I want to run a 5 volt DC motor with RPi.GPIO, I have written a code: import RPi.GPIO as GPIO from pip._vendor.distlib.compat import raw_input u = raw_input('how ...
0
votes
1answer
10 views

Power Raspberry Pi using GPIO Pins and a 10A supply with 7805

I am currently working on a project where i have micro-controller,stepper drivers etc all powered through a single 12v 10a power supply. I was planning to use the same supply to power the raspberry pi ...
0
votes
0answers
10 views

No response of rasperry while using selenium with python - code works fine on other device

i wrote a python code using selenium to interact with a headless browser. Now I'm trying to transfer the program to my raspberry so I don't have to keep my Laptop online all the time. I altered the ...
1
vote
1answer
1k views

Raspberry pi 3 b+ and 7" touchscreen over poe

I have an issue, i want to power my pi and 7" touchscreen over poe but the raspberry pi poe hat supplies only 2.5 amp. 7" touchscreen requires 2.5 amp and rpi 3 b+ also requires 2.5 amp so i am in ...
1
vote
5answers
409 views

Wifi cuts out after a few hours, have to restart Pi

I intend to keep an SSH and a Minecraft server up 24/7 (with the exception of the monthly server update). My only problem is, the wifi just stops working after a few hours so I'll have to manually ...
1
vote
1answer
316 views

How can I use the Raspberry Pi to connect a wired ethernet device to a wireless network

I have a device I would like to connect to a wireless network but it does not have a wireless adapter. The device does not have a console or monitor output so I can not log into the device. I need ...
1
vote
1answer
203 views

Using an Xbee on raspberry pi 3 model b

I'm a complete newbie to using Raspberry Pi (pi 3 model b). I want to build a smart CO and smoke alarm from scratch, I know what sensors I want to use ( Mq 2 for smoke and mq-7 for CO), however I want ...
0
votes
1answer
20 views

What problems can occur when unplugging a (sync'd) USB drive?

I want to know if there are any specific technical reasons for not just unplugging a USB drive that is still mounted, provided: 1) All open files on the stick have been written to and closed 2) The ...
1
vote
2answers
219 views

How to run a LED sequence while button is pressed?

I have a function PlaySequence() which plays a sequence of 'LED on' and 'LED off'. There are two LEDs and the times when each LED must be on or off are defined. The function may look like this, but ...
1
vote
2answers
220 views

RTC drifts when rebooting

I'm working on a project where an RTC (DS3231) is needed since the RPi will not have continuous access to the internet. I've been able to set the clock on time and keep it but I've observed that a ...
1
vote
2answers
75 views

How to make ups hat run safe shutdown on raspberry when disconnected from the power source

It can be long discussion, because there is no single solution around this, so, to cut the story short, I will tell where I stuck on my way. It is AndroidAuto (media centre in car on raspi) project I'...
0
votes
1answer
250 views

My mono service crashed - how do I figure out what happened?

I wrote a .net 4.0 mono service called snserver.exe and am hosting it on a Raspberry Pi via mono-service. In order to run it, I execute the following line: mono-service -l:/var/supernovaServer/...
0
votes
1answer
247 views

Raspberry Pi Matchbox virtual keyboard missing colon

The Matchbox virtual keyboard is missing the colon character. Is there a solution to add this character?
0
votes
1answer
283 views

Controlling High voltage devices with Raspberry Pi

Can I control high voltage (here 5V) to power a led lamp and a fan(both operating at 5v) from Raspberry Pi GPIO only using a transistor . Or should I isolate both the circuits using a relay or octo-...
0
votes
0answers
20 views

Raspberry pi 2 wont boot without touchscreen

I know, this sounds like similar responses. I have tried editing config.txt however it appears that some code in it is still running after i boot with the raspberry pi with a touch screen. I did also ...
0
votes
1answer
218 views

Blurry and washed out composite video

I'm trying to get my Raspberry Pi B+ to output to composite video. At first it wasn't working at all, but after scouring Google I got it to output. However, the composite video is blurry and washed ...
0
votes
1answer
209 views

Segmentation fault error while installing opencv on raspberry pi 3. Any reason for that?

Hi everyone I hope someone could help solve this issue,I'm trying to install openCV 3.3.0 with python 3.5 on the raspberry pi 3 for the second time ( first time I got no module named cv2 ) but this ...
0
votes
1answer
19 views

Verify WiFi Settings Will Work via Command Line

I'm remoting into a RPi Zero W using SSH. The RPi is connected to the internet via Ethernet cable. I want to set-up the WiFi at the current remote location and check that it will work when the ...
1
vote
1answer
1k views

raspberry pi as access point with captive portal

I recently got a raspberry pi. I have it set up as an access point in a standalone network (not connected to the internet). I can also serve a static website on this network. Ive been trying to set up ...
1
vote
1answer
299 views

RPi threading too slow

So I have rpi wheeled robot, with wheel encoders and I want to always keep the track of the encoders and to be able to access the value when ever I need it. Basically, I created a thread, which ...
-1
votes
0answers
25 views

Power management in Windows IOT

Because my project is in the field and not in a lab, power consumption is a significant issue. According to specification an idle Raspberry Pi 3B+ bare board has a current draw of 330mA. Long term ...
6
votes
4answers
8k views

How can I cut power coming out of the Pi's USB ports?

I have a simple device connected to the Raspberry Pi, a small USB fan. The problem is that the fan does not have a on/off switch so I must unplug the fan every time I want it to stop. My question is: ...
0
votes
1answer
35 views

Cannot resolve local hostname of my Raspberry Pi

Currently I am using a pi 3 model B+ as a mopidy server. I set this up at home and I was able to access the pi with the hostname from a browser (e.g. going to http://hostname.local/ in a browser). I ...

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