Week 10: Make-through

• Thonny is an IDE for Python which is pre-installed on raspberry pi

• if you are using windows you need to download and install it

First you need to connect camera to RPI board Using Flat Cable

then write your first code to run camera and capture frames and view it

Detection and Recogration in openCV can run using per Tranned files called Classifiers

Haar-cascade is the most common classifier for a simple processes like detect face,eye,License plate ,or human bodies

After downloading HAAR-CASCADE we select required classifier and apply it to our captured frame

in our case we use class to detect face and other one to detect eye

Trial #2 (Successful): Face Tracking

now we need to track face or eye or whatever we have detect and read it's (x,y) location and based on it's location we can change color and print this coordination

the eye detection box will colored green if it's on left side and red in right side

as i sitting in center of the screen I get one eye in green and another one in red

we have two servos connected to each other using pan tilit kit that allow servos to move up and down, left and right

now we connect servos VCC, GND to RPI and Signal pins to 11 and 13

Trial #1 (Successful): Face Tracking and servo move

now we update our code and import GPIO Library and PWm

the problem here is there's now built-in library to move servo like arduino we need to create our own code block to map (x) value to pwm for the first servo and (y) value to the second servo