I have been trying to send multiple MQTT messages over the ExpressLink SARA-R5, but it appears to be limited to one AT+SEND call per 10 seconds. Is there a way to increase the frequency of message transmission?
Maybe - poke through Amazon’s documentation here https://docs.aws.amazon.com/iot/latest/ … ocols.html
https://docs.aws.amazon.com/iot/latest/ … /mqtt.html
https://docs.aws.amazon.com/iot-express … max-values
(I’m not finding much about the max rates, but it does seem somewhat configurable…)
If you determine that you can’t increase it, one idea might be to get multiple devices each with their own connection
I did some more testing. It also appears to be dependent on the processor board too. RP2040 with MicroPython is roughly 10 sec before receiving OK response and ability to process anyone AT command, the ESP32 with Arduino IDE starts at 5 sec but then gets to 60, which might be a coding issue at that point, because that is my response timeout limit.