I’m finding that when using the UDP library, if I send messages continuously, say, once a second in the main loop, it sends them almost indefinitely (until the core restarts, flashes green, flashes cyan etc…). But if I instead attach the send function to a button press, and do it now, and in a minut…

No I mean the Print constructor I posted… I was thinking it sucks in something like “255.255.255.255” and assigns the 255’s to _address[0] - _address[4]; but it’s just printing out the IP address… derp.

The unsigned int was just a typo really when making the example app. My actual use case is a button press that triggers a udp packet send. If I didn't press the button for a few minutes, it wouldn't work. However if I had keep-alive style packets being sent every few seconds, then the button press w…

Also the inactivity timeout is set at 60 Seconds. This will result in the socket being closed. So set you time shy of the inactivity timeout. @Dave If it is not in there, we might want to add the the network timeout to the network object’s API The spark/master is defaulted to 60 sec, davids5/mas…

I would say the UDP object is going to need some more work. I am not familiar with the typical arduio use case for udp. So I do not know what behavior is expected by the arduio community. If you do, and describe it to me i can mod the UDP object to do what is expected. Just keep in mind that in m…

[image] david_s5: Also the inactivity timeout is set at 60 Seconds. This will result in the socket being closed. So set you time shy of the inactivity timeout. If set at 60 seconds, I receive one "tick" and no more. When set at 55 seconds, I receive two "tick" messages, then radio silence W…

check the call Set_NetApp_Timeout in spark_wan.cpp what is the value of aucInactivity? the other thing would be in loop() … udpClient.begin(SERVER_PORT); udpClient.beginPacket(serverAddress,SERVER_PORT); udpClient.write(“tick”); udpClient.endPacket(); lastMillis = millis(); digitalWrite(D2,…

[image] david_s5: check the call Set_NetApp_Timeout in spark_wan.cpp what is the value of aucInactivity? unsigned long aucInactivity = 60; [image] david_s5: udpClient.begin(SERVER_PORT); udpClient.beginPacket(serverAddress,SERVER_PORT); udpClient.write("tick"); udpC…

Thank you for highlighting the timeout issue - it has saved me hours of barking up the wrong tree. I have a Spark server that will eventually deliver data to a number of other machines which are running python UDP client software. As long as a request for service is made more often than every minut…

@phec would you mind editing your above post and doing this to your code, it will really help people see it and copy it :wink: [image]

Strange UDP bug

david_s5 February 5, 2014, 12:43am 21

That would be because the socket closed by the timeout…but do it to0 fast and you use up all 7 sockets… I would keep the stop… hmmm on the receive side…I will think about that one and get back to you.

UDP Receive Frequency Limit

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Strange UDP bug

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