Embedded Files
Mar 2024
GOAL: remotely navigate a course by controlling a Create 3 robot via Airtable
SKILLS: ROS2, python programming (classes and methods), using Airtable
By hooking a Raspberry Pi up to a Create3 Robot, we essentially have a Roomba that can be operate with ros2 topics and actions.
Video
Video
Robot Operation Code
Robot Operation Code
Final p5ros.py code.pdfHTML page Code
HTML page Code
Final update.html code.pdfOperation Code Summary
Operation Code Summary
We created a class called RobotController with several methods:
__init__(self)
constructor: __init__(self)
fetch_commands_from_airtable(self)
getting data from Airtable:
execute_command(self, command, value, status)
uses collected info from Airtable to set the correct command to the correct speed
timer_callback(self)
main operation
calls fetch_commands_from_airtable
calls execute_command
In main, the code initializes an instance of RobotController and "spins" the class in a while loop to continuously update from the Airtable data.
HTML Page
HTML Page
The buttons change the On/Off cells in the Airtable table to turn on and off the commands.
the user can click the buttons on the screen, or use the keyboard
up arrow: forward
down arrow: backward
left arrow: rotate counter-clockwise
right arrow: rotate clockwise
s: stop
Things to adjust in the future:
find a way to lessen the lag
embedded livestream in the HMTL page so don't need to do split-screen zoom
mount the camera better/less camera shake
Page updated
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