Tabletop Treasure

In this challenge we had to build a robot that was able to find a yellow square that was somewhere on a table with out falling off the table. We built our robot with two colour sensors to make it so even at a sharp angle the robot would sense the edge before it fell off.

Psuedocode:

Loop

Move forward

Color sensor - sense change of color = black

If color change is true - backup and turn around

Loop - end after infinity

Loop

Move forward

Color sensor - sense change of color = yellow

If color change true - Stop Cheer and stop program

Loop - end after infinity

Loop

Ultrasonic sensor sense x centimeters

If something sensed x centimeters in front increase speed to 100 and move forward

Wait 0.5 seconds before checking again

Loop - end after infinity

This is what our code actually looks like

This challenge was actually a lot of fun because we, as a class, got to sort of put our robots against each other so we were allowed to put offensive parts on the robot. Our robot had these spear like attachments on the front and when it sensed a robot close to it it would dash at it and get it out of the way all while searching for the yellow square. When it went over the yellow square it would stop and celebrate. Here is a video.

It was actually a pretty easy challenge to complete because we had already done a challenge that was very similar. We didn't run into any problems during this challenge.