Hi, I am writing a program that should display an image file that had been taken earlier using PiCam and raspistill command. The image is stored in /home/pi and the file name is face.jpg. I want it to show up for a few seconds so user can view the image without clicking anything. The image viewer sh...

I am using L298n (the red one with 8 input pins) to control a 4tronix robot. I managed to get the thing moving forward by Scratch and both motors turn. However when I tried to get to go the other way, one side of the motor does not turn and the other side of motor can turn to opposite direction as e...