Good Morning/Afternoon/Evening
I am trying to connect my Raspberry Pi Pico to a Realtime Database on Firebase. I'm using a Wave Pico-ESP8266 module to connect to wifi and micropython. I also have the ufirebase.py module that uses the usocket module, however I can't seem to get the module. I've tried downloading it from the package manager, the plug-ins manager, I've check the micropython forums, I've tried to find the modules files to manually install the package to the pico but no luck thusfar.
Does anyone know where I can find the usocket or am I missing something.
Kind Regards
in the uf2 file usocket is preinstalled so you probably have an older version of this file download a newest version using this link
or this link (the second link has step by step how to download uf2 file)
Related
I recently use the pre-built OpenCV 3.1.0 on Windows which was downloaded from here. Actually, I followed the official installation.
The thing is that I find that the VideoCapture module of pre-built OpenCV processes video very slowly. It seems that it has no support of ffmpeg. And I find the official note:
To use the OpenCV library you have two options: Installation by Using the Pre-built Libraries or Installation by Making Your Own Libraries from the Source Files . While the first one is easier to complete, it only works if you are coding with the latest Microsoft Visual Studio IDE and doesn't take advantage of the most advanced technologies we integrate into our library.
It makes me curious about what is the actual build configuration of pre-built OpenCV 3.1.0 (or other versions) on Windows. No supports of TBB, IPP, Eigen, CUDA, etc...? I didn't find any clue on the internet. Anyone knows?
I'm trying to build OpenCV 3.1.0 on a stand alone computer (there is no internet access).
I have an Intel composer 2015 installed, which include IPP v8.
During CMake build configuration, I get the following message:
Cmake error at 3rdparty/downloader.cmake.73
for file: [..... /ippicv_windows_20151201.zip]
expected hash [...] actual hash [...]
I figure out that I need to manually download ippicv_windows_20151201.zip and place it in the sources sub - folder.
Do you know where I can download it from?
I can exclude the build flag: "WITH_IPP" , In that case, I'd not build with IPP at all, which is something I don't want.
I'd rather like to build OpenCV with my pre-installed IPP (Intel Composer), not the downloaded free version from OpenCV, Do you know how I can do that ?
BWT, What is the difference between build WITH_IPP and WITH_IPP_A flags ?
P.S. I posted the same question on OpenCV forum
If the downloader.cmake is not finding the hash perhaps is not available yet or there is some error when reaching the URL (downloading protocol maybe?). Download the previous version from here, it'll do the work. Just need to place it in the correct folder. I'm using OpenCV 3.1.0 with the 20141027 with no problem at all.
In case you have an Intel composer which includes IPP library.
Go to your Opencv CMake --> Add entry (right side) --> Insert variable as a path:
IPP_ROOT
Set with the library location
Thus, would compile Opencv with IPP library from the Intel Composer
IPP_A comes for asynchronous IPP which is currently experimental
How to install OpenCv on raspberry-pi (OpenWRT)? and what is the best programming language to use on the Linux running on the Rpi?
Someone already tried to add this package to OpenWrt. You could try to update the patch.
I've also found this tutorial.
If you don't necessarily need OpenWrt, you could use Buildroot. This distro provides OpenCV already and Python integration patches were already posted to its mailing list.
Need to install non-PNP kernel device driver under Windows 7. Old reliable INSTDRV.EXE fails on StartService, claiming "2 -- system cannot find the file specified" although fully qualified path to driver SYS file is absolutely positively accurate. I realize Device Manager has an "install legacy driver" Action menu item, but that requires identifying a specific device, which I don't have. Why doesn't INSTDRV.EXE work under Windows 7? How can I install a non-PNP kernel device driver under Windows 7? Thanks.
As far as I know, on modern Windows you have to write .inf file. Read this short MSDN article.
There is a tool in WDK that helps installing drivers. Just copy it to your driver's folder and run it.
Update:
After submitting this answer I've found another way of installing non-pnp drivers. There is another tool, DevCon. It can be found among other WDK tools (Windows Kits\10\Tools\x64). Just copy DevCon.exe to your driver's folder and execute like this:
devcon.exe install pcscgate.inf Root\pcscgate
Root\pcscgate - device identifier that matches the one in [Model] section of .inf file (yes, you still need that file). DevCon creates an empty device node with this identifier and then installs driver.
I had a similar problem just now, finally solved it by setting Linker/Input/Ignore All Default Libraries to Yes (/NODEFAULTLIB).
sir,
I have tried my level best to install open cv library 2.2.0 version.but it has'nt suceeded
it shows that errors in linking the library hughigh,
whether we wanted to insatll the ipp library prior to install the opencv?
please help me ?..............
I can only recommend the install advice on the OpenCV page. If you are using a unix download the source of the library you want to install and then use cmake to install the library. That usually works fine for me.
Try installing the 1.1 version of OpenCV.
The 2.x version is brand new and as of Nov 1 2009 you will have difficulty finding documentation for that. The 1.1 version of OpenCV, on the other hand, is very well documented and you should have no trouble finding online tutorials for your platform that walk you through the installation process step-by-step.
As an aside: "IPP" refers to Intel's Performance Primitives. In the 1.1 version these are entirely optional. OpenCV does not require them. If you have the Performance Primitives installed, however, your OpenCV code may run faster. (For me it cut down my image processing time by a factor of five.) Once you get everything up and running you can purchase the IPP library from intel here: http://software.intel.com/en-us/intel-ipp/