The Bowmar Builders are an FLL team associated with Bowmar Elementary School. The purpose of this blog is to help other students interested in robotics to learn from what we have learned. As an FLL Robotics team we use the Lego EV3 robotics system and the Mindstorms graphical programming language.

Thursday, September 21, 2017

Sensor Tips

By Adan and Mateo Byrd

Push
Push sensors are used to tell if you are touching something. Uses: line up against a wall, see if you have gone far enough, stop from hitting a wall or object. Find distances (run until you push it, look at revolutions.) Use to start the program for competition. When pushing something with an attachment, use on the end to see if you actually pushed the thing.

Light
Follow lines. Stop at colors. Detect attachment (with built in color blocks) and start programs.

Distance
Determine how far away you are from an object.  Be careful with blocking the sensor with attachments. Not good less than a couple of inches. Use with math block to determine distance to travel.

Gyro
Precise turning. Needs to be between wheels. Best when turning center point is at the gyro (I.e. Pivot turn.) Susceptible to grounding problems (constantly counting turns) when powering on robot (just unplug and plug back in)

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