Autonomous vehicles

Event loops

Often, where the computer is reacting live to changes in an environment, we use an event loop to organise our code. In these cases, there is some inital setup, and then we have a sequence of things we need to do, which we will repeat over and over for ever.

In Python, a loop forever is a while True: loop. Most of you would have seen them at work in your Microbit folio last year.

Here is a simple example for our robot:

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# Setup
robot.setup(DRIVE_BASE, TOUCH)

# Event loop
while True:
    if robot.read(TOUCH):
        robot.drive(100, 0)
    else:
        robot.stop()