I’m running a flask server on my Raspberry Pi just a simple one to test the POST or GET request but Postman “Could not send request”. But when I try to access the link via the browser, it displays the request. I’m accessing Raspberry Pi via SSH and using VNC Viewer.) I’m confused…
Tag: raspberry-pi3
unable to set line to input
I am trying to read humidity and temperature values from the AM2301(DHT21). for that I am using the adafruit_dht library which is written for DHT11 & DHT22. because I can’t find any adafruit library for AM2301 so I use this. when I first run the code using some gpio say D17. it works fine and gives …
Trying to Count Faces Using OpenCV, Haar Cascades and Raspberry PI
So I have a project for a trail camera to count people entering the trail by detecting their faces. There isn’t any power available so I am stuck using a Raspberry Pi 3 B+ for power reasons. I am currently using opencv and Haar cascades to detect faces. My problem is two-fold. The first one is that my c…
how to update python in raspberry pi
I need python newest version in raspberry pi. I tried apt install python3 3.8 apt install python3 but this didnot work. And I also needed to update my raspberry pi python IDLE Answer First update the Raspbian. Then install the prerequisites that will make any further installation of Python and/or packages muc…
ImportError: libcblas.so.3: cannot open shared object file: No such file or directory
I am trying to run an Arducam MT9J001 camera on a raspberry pi 3b+. I am getting the following error when I try to run the program, “ImportError: libcblas.so3: cannot open shared object file: No such file or directory.” I have the computer vision software downloaded onto the raspberry pi, though i…
Attribute Error : none type object has no attribute ‘ shape ‘
I keep encountering an attribute error trying to read some frames from a piCamera on a raspberry pi Here is the error: Answer It seems that frame was returned as None in this line as if you camera couldn’t read an image: Then, when resizing a None object, the program blows up as we described in the erro…