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Topic3
Train signal challenge
December 17, 2018
4:36 pm
Archer
New Member
Members
Forum Posts: 1
Member Since:
December 17, 2018
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Hi everyone,

We are trying to complete the train signal challenge whereby one Edison detects a train, and another controls a boom gate. We are having difficulty getting the boom gate Edison to receive the signal and raise the boom gate.  The signaling program appears to be working. We’ve installed a beep so that we know when the signal is sent and received. This is our boom gate program, would love some troubleshooting advice please. 

https://www.edscratchapp.com?share=V0eexK0a

December 18, 2018
11:07 am
Ben
Admin
Forum Posts: 177
Member Since:
August 24, 2015
sp_UserOfflineSmall Offline

Hi Archer,

I have had a little look at your program and I believe the issue is inside the forever loop. You have a 'wait until IR message detected' at the start and the end of the program. I believe that it may be fixed if you remove the one at the end. Because once at the end of the loop you will wait for an IR message then it will start the loop again and instantly look for another IR message before doing anything.

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