Multi-Robot Sending a Message

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Project Description

This multi-robot project demonstrates how to send a message from one NXT robot to another. The A NXT robot will send a message to the B NXT robot, then the B robot will display that message to its LCD screen.


Hardware and Software Required

  • ROBOTC for Mindstorms 3.0 or later (ROBOTC.net)
  • NXT Microcontroller Kit (LEGO Education) – 2
  • NXTBee Adapter (Dexter Industries) – 2


Teacher Notes

The concepts outlined in this lesson are geared towards an intermediate user of ROBOTC and C Programming languages. Topics covered include:

  • Transmitting and Receiving Data from an RS-485 Device (NXTBee)
  • Using the NXT LCD screen
  • Using External Libraries
  • Students should be comfortable with all material covered in the Teaching ROBOTC for MINDSTORMS curriculum before jumping into any Multi-Robot communication lessons.

Lesson

  • Setup
    • An NXTBee radio should be connected to sensor port 4 of each robot. The radios on each robot should be paired so that there is communication.