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Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
book

Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

by Steven Lawrence Fernandes, Tim Cox
April 2018
Beginner content levelBeginner
552 pages
13h 58m
English
Packt Publishing
Content preview from Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

Driving the robot using the compass

Now, all that remains for us to do is use the compass bearing to steer our robot to the desired angle.

Create the following compassDrive.py script:

#!/usr/bin/env python3 #compassDrive.py import XLoBorg3 as XLoBorg import rover_drive as drive import time MARGIN=10 #turn until within 10degs LEFT="l"; RIGHT="r"; DONE="#" def calDir(target, current, margin=MARGIN): target=target%360 current=current%360 delta=(target-current)%360 print("Target=%f Current=%f Delta=%f"%(target,current,delta)) if delta <= margin: CMD=DONE else: if delta>180: CMD=LEFT else: CMD=RIGHT return CMD def main(): myCompass=XLoBorg.compass() myBot=drive.motor() while(True): print("Enter target angle:") ANGLE=input() try: angleTarget=float(ANGLE) ...
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Publisher Resources

ISBN: 9781788629874Supplemental Content