Topics created by Martijn Kooijman

@Eric-Barten I still get the extra messages delivered even after deleting all but one subscriptions. Any thoughts on how to tackle this? Could it have something to do with downlinks not arriving? for example how lomg should I wait after sending before receiving?

There is no option to query the status of a downlink message. Buffering of downlink messages may occur on different places in our solution it is hard to give an clear response to such a request due to the asynchronous nature of the protocols.

Note: after sending an uplink message we will try to downlink all buffered messages.

@Martijn-Kooijman I solved it by checking the return message after sending “AT+USOCR=17,7000”. Once it is contains “+USOCR: 0” in the returning string I know it is ok:
(it takes about 5 s after a reset)
added code:

String check_sara=cmd("AT+USOCR=17,7000"); while ((check_sara.indexOf("+USOCR: 0",1)<0)) { delay(500); check_sara=cmd("AT+USOCR=17,7000"); Serial.println(check_sara);//just for checking }