- Wed Nov 10, 2021 1:14 pm
#92802
I have just gotten started using ESP8266, using the ESP-01 module with a PIC24 micro as the host.
I have successfully made a trivial HTTP server that responds with "Hello", so that much is working fine.
But I would like to get multicast UDP messages since my application has 8 nodes that must be coordinated and synchronized, hopefully by a controller sending a single UDP message that all receive.
Here is the sequence of commands that I have tried (after successfully connecting to access point). The indented line is the response from ESP.
AT+CIPMUX=0
AT+CIPMODE?
AT+CIPMODE=1
AT+CIPSTART="UDP","239.1.1.1",1900
I am getting the expected responses.
Now I expect to get +IDD messages. I enter a loop and I receive nothing.
What am I doing wrong?
Bob
I have successfully made a trivial HTTP server that responds with "Hello", so that much is working fine.
But I would like to get multicast UDP messages since my application has 8 nodes that must be coordinated and synchronized, hopefully by a controller sending a single UDP message that all receive.
Here is the sequence of commands that I have tried (after successfully connecting to access point). The indented line is the response from ESP.
AT+CIPMUX=0
AT+CIPMODE?
AT+CIPMODE=1
AT+CIPSTART="UDP","239.1.1.1",1900
I am getting the expected responses.
Now I expect to get +IDD messages. I enter a loop and I receive nothing.
What am I doing wrong?
Bob
