Mail Messages
At Davis Creek Elementary 5th Grade
April 26, 2004
 
The class has made many merry go rounds.
The plan is to work them into a systems engineering project
where multiple RCX communicate with each other to have the entire amusement park work.
This group has modified their project to have a turnstile for the entrance to the park.
 
We programmed in Investigator to be able to see what sensor reading we get from the light sensor.
Actually Investigator is nice because we will be able to keep all our programs together in one place.

Turnstile waits for someone to walk through.
The light sensor reading goes above 45.
This RCX sends out mail message 1.

Car waits for mail message 1 then moves to the merry go round.
The car sends out mail message 2 for the RCX on the merry go round.

The third RCX waits for mail message 2 then makes the merry go round move.
Then it sends out mail message 3.
The car is waiting for mail message 3; then it moves on.


The new student got to see programs run at SENSORSCITY.


LEGO Links of Linda Hamilton hamilton@marshall.edu
5 students
then the whole class of 23 students.