Serge NOEL
52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
# Receives and parses loconet messages from the SIGM20 signal logic board.
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#
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#
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import jmri
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import java
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# Set the intended LocoNet connection by its name.
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# It's usual "L".
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connectionName = "L"
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class SIGNM20receiver(jmri.jmrix.loconet.LocoNetListener):
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def message(self, msg):
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# check for a match in the first three bytes
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if ( msg.getElement(0) != 0xE4 ) : return
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if ( msg.getElement(1) != 0x09 ) : return
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if ( msg.getElement(2) != 0x05 ) : return
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# Extract the content
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a2 = msg.getElement(2)
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a3 = msg.getElement(3)
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a4 = msg.getElement(4)
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a5 = msg.getElement(5)
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a6 = msg.getElement(6)
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a7 = msg.getElement(7)
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a8 = msg.getElement(8)
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signalNumber = (a3 | (a2 << 7) ) + 1
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print ("accepted message with ", a3, a4, a5, a8, signalNumber)
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signalName = "IH"+str(signalNumber)
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print ("signal name ", signalName)
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signal = signals.getSignalHead(signalName)
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# if the signal hasn't been defined, return
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if (signal == None) : return
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print ("signal user name ", signal.getUserName())
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# set the appearance based on the speed in a6
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if a6 > 0x10 : signal.setAppearance(GREEN)
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else : signal.setAppearance(RED)
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print ("appearance now ", signal.getAppearance())
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# do something with that content
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# create the LocoNet listener
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lnListener = SIGNM20receiver()
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# install the LocoNet listener
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tc = jmri.jmrix.SystemConnectionMemoManager.getConnection(connectionName, jmri.jmrix.loconet.LocoNetSystemConnectionMemo).getLnTrafficController()
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tc.addLocoNetListener(0xFF, lnListener)
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