Issue with owncloud and apache
I installed apache and No-IP DUC on my Raspberry Pi. Then, I could reach my simple html web page over the internet or on local network(using static IP of raspberry PI). Then I installed owncloud and...
View Articlesoftware for stepper controller via USB
I am trying to design a machine with 10 stepper motors and a few sensors and a keyboard. I do not have enough GPIO on my Raspberry Pi 2B. Thus I plan to buy two of these:...
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Atlas PH Sensor Query Failed
Hi I have bought Atlas PH Probe and followed the instructions to use the EZO PH circuit in i2c. The board lights up in blue color. When i use i2cdetect -y 1 i am getting default port 63 in the...
View ArticleCan "normal" app change resolution/refresh on the fly
I want to write a Pi app to test the ability of American HDTVs to display 720p50, 1080i50, 1080p50, and other assorted modes, like the 59.94 & 60fps variants of 720p60 and 1080p60 via HDMI. Few/no...
View ArticleHow to send and receive data between RPi and PIC33E microcontroller via USB?.
This is my first project with PIC33E, and both the devices will be connected by USB only. Rpi will have a User Interface (written in Python) and which will enable the user to send and receive data....
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Pi3 Interface to IR Sensor stays High
I am new to RPi and trying to trigger a camera with a motion detector. The motion detector reads High (1) all the time, so pictures are taken continuously. I had the IR detector working with an LED...
View ArticleKernel modules and Pi board versions
I have a Raspbian image (4.9.59-v7) into which I am loading a kernel module that I have built myself since it is not in the default image (for an ICS43432 MEMS I2S microphone). I have this working...
View ArticleSending data to and from raspberry pi 3 wirelessly using wifi / sim network data
I'm looking for advice regarding sending and receiving data between raspberri pi 3 and other devices assuming everything has internet connection. The data I'm looking to send doesn't have to be bigger...
View ArticleSetting up a Raspberry Pi as an access point - the easy way
I know how to do it the classic way as described for example by the official documentation at Setting up a Raspberry Pi as an access point in a standalone network (NAT). But that needs many different...
View Articleapt-get update Crashes
I have just successfully done sudo apt-get update sudo apt-get dist-upgrade Success meaning they finished and no errors which stopped the process - I did get a warning about something to do with...
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whistle sound when recording with USB sound card [alsamixer]
I'm working on a project in which I need to record voice using a Raspberry Pi. I'm using alsamixer and arecord, the problem is that when I'm recording it starts playing a weird...
View ArticlePerformance of Raspberry Pi 4 in luks?
I found previous version was quite slow (3MB/s), but this newer Pi has more power. What speeds can I expect with external hdd and standard installation of luks (I believe aes 256, xts, plain 64)?
View ArticleHow to enable 802.1X security for Ethernet on Raspbian 10?
On a different host running Ubuntu 18.04 I'm using the Network Manager GUI to configure the 802.1X Security for my Ethernet interface (eth0), leading to /etc/NetworkManager/system-connections having...
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DHT11 Temprature sensor makes raspberry pi go crazy!
I am trying to use the DHT11 sensor temprature and humidity sensor with my Raspberry Pi 4B. When I connect the sensor with my Raspberry Pi and turn it on, the red LED on it starts blinking and it...
View Articlenew 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...
View ArticleEthernet connection not detected if cable reattached
Let's say my rPi is functioning properly and has a working Ethernet connection; it has a local IP and I can connect to it. I disconnect the rPi's Ethernet cable because I need it for another device...
View ArticleWrite to spi EEPROM in Raspberry Pi 4
The Pi4 has 512Kb of EEPROM which hold the bootloader. Does anyone know if it is possible to write to spi memory to be used in programs in the user space without corrupting the bootloader? Is there...
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802.3af POE splitter not working wth pi4
For the past few years, I've used a pi1 with an 802.3af POE splitter. The splitter outputs an RJ45 ethernet plug, and micro USB with 5VDC @2.4A. The splitters RJ45 plug only has 2 pair (4 conductors)...
View ArticleWhy am I getting 'camera component couldn't be enabled' with raspistill?
I am getting those errors when I try to take a picture with raspistill. Until now, it took pictures anyways. $ raspistill -o test.jpg mmal: mmal_vc_component_enable: failed to enable component: ENOSPC...
View ArticleForwarding owncloud from PI to router
Aim: Have an owncloud on a raspberry, available from public network e.g. from the IP of my router rather than from the IP of my Raspberry. Background info root@DietPi:~# uname -a Linux DietPi...
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