I am using raspberry pi for my application which collects some sensor data and pushes to the cloud. This involves Qt as front end where in which I need to display current boot loader, kernel version along with application version number and other details inside device information page. I badly need ...
I just want to know the version of boot loader & kernel version being used in this image. To get the kernel version, after booting can be obtained in the following way: pi@raspberrypi: $ uname -a Linux raspberrypi 4.4.11-v7+ #888 SMP Mon May 23 20:10:33 BST 2016 armv7l GNU/Linu I can see that kernel...
Hi, I am using jessie image and my os-release reads as below pi@raspberrypi:~ $ cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)" NAME="Raspbian GNU/Linux" VERSION_ID="8" VERSION="8 (jessie)" ID=raspbian ID_LIKE=debian HOME_URL="http://www.raspbian.org/" SUPPORT_URL="http://www.raspbia...
Guys, I have tried to compile qt 5.8 by following instructions from http://www.tal.org/building_qt_5_for_raspberrypi_jessie . Still the issue is the same. I am really stuck at this particular touch issue. I know there are experienced people around who can guide me to get out of this issue. Please he...
I have cross compiled qt for Raspberry Pi by following instructions from https://wiki.qt.io/RaspberryPi2EGLFS Only thing I have changed instead of using git clone git://code.qt.io/qt/qtbase.git -b 5.6 I have used git clone git://code.qt.io/qt/qtbase.git -b 5.7 because my Qt Quick2 needs Qt5.7 or hig...
I have an update... As already informed, I am using hdmi mode and added the settings mentioned in my previous mode. Now I am using raspi2fb to mirror the hdmi display to lcd. Now I can see the hdmi display on my LCD absolutely fine and touch is also working properly. But when I run my qml applicatio...
My touch is rotated exactly 90 degrees. I have tried to use lcd_rotate=1., but it did n't worked. Please let me know how can I get the touch back to 90 degress
I got my issue resolved partially. I need to use LCD-hdmi mode and add the following into /boot/config.txt hdmi_force_hotplug=1 hdmi_cvt=480 320 60 hdmi_group=2 hdmi_mode=87 dtoverlay=waveshare35a This made to show my qt app full screen with out any icons visible in background. But now touch does n'...
Hi, I am using raspberry pi 3 with waveshare 3.5 LCD. I have to run my qml app (Qt Quick2) on touch screen. I can run my qml on hdmi with no issues. I have used the LCD-show drivers from http://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A) and was able to switch from hdmi to LCD. Touch and everything e...
Hi, I am using raspberry pi 3 with waveshare 3.5 LCD. I have to run my qml app (Qt Quick2) on touch screen. I can run my qml on hdmi with no issues. I have used the LCD-show drivers from http://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A) and was able to switch from hdmi to LCD. Touch and everything e...
But I read in some documents where with the similar setup I can capture the transmittance image. Here is the link to one of the document which has similar setup
I have raspberry Pi connected with NoIR camera v2.1 at one end of the box. At the other end, I kept 940 nm IR led (1 W) and connected to a 5 V (from GPIO pins of raspberry pi model b) supply with 400 Ohm resistor in between to limit the current to the light source. My intention is to keep a fruit in...
I am using NoIR camera v2.1 and a IR Led Light source with 940 nm (1W). In the dark when camera is pointed to light source, I can see the whitish/purple glow. When visible light is illuminated, I can capture that one also. I would like to know if there is any particular mode in which the camera can ...
Hi, I have installed webserver on raspberry pi by following instructions from https://www.raspberrypi.org/documentation/remote-access/web-server/apache.md Now I have clients (linux/windows based) which need to discover the server. Server running on Pi needs to broadcast a message and a client connec...