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Learn Robotics Programming
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In this section, we will combine the visual processing seen previously with the PID control loops and camera streaming seen in Chapter 13, Robot Vision – Using a Pi Camera and OpenCV. Please start from the code in that chapter.
The files you will need are as follows:
pid_controller.py
robot.py
servos.py
camera_stream.py
image_app_core.py
leds_led_shim.py
encoder_counter.py
We will use the same template for displaying this, but we are going to add a quick and cheeky way of rendering the diff
graphs in OpenCV onto our output frame. Matplotlib would be too slow for this.
Before we build a new behavior, creating a data flow diagram will help us get a picture of what happens to the data after we've processed it.
The system will look familiar, as it is very similar to those we made in Chapter 13, Robot Vision – Using a Pi...