OK I think it works now, two things I've changed.
1/ In Python I set the sleep time to 1sec ( instead of 0.5sec ) right after the client.publish(topic,send_msg)
2/ In NR I set the Qos to 1 and Retain to True
OK I think it works now, two things I've changed.
1/ In Python I set the sleep time to 1sec ( instead of 0.5sec ) right after the client.publish(topic,send_msg)
2/ In NR I set the Qos to 1 and Retain to True