Hi,
I'm trying to periodically send sensor data to the AWS server and followed the documentation here to connect and send data to the server. I use these configurations -
CONFIG_LTE_PSM_REQ_RPTAU="11000001" (320 hours)CONFIG_LTE_PSM_REQ_RAT="00000001" (2 seconds)CONFIG_MQTT_KEEPALIVE=1200 (20 min)I have programmed the device to send data (QOS 0), poll the socket for 2 seconds and then sleeps for a specified interval of time (sleep_time). I see that if I have the sleep time anywhere between 1 to 328 seconds, the device works without any problem. If I increase the sleep time to say 358 seconds, the first message is sent properly but the second message receives a Socket error: POLLHUP, Connection was closed by the AWS IoT broker message. I've played with the
CONFIG_MQTT_KEEPALIVE value but I cannot increase the data send interval above 328 seconds. Do you have any ideas how I could debug this? Thanks in advance!Nikil
