Libelium Cat-M, Сетевое руководство

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v7.0
Software
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If no timeout input is specified, the receive function is a non-blocking function which answers if data has
been received.
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If the timeout is inserted as new input, the function will block until a new packet is received or time is up
in the case no packet is received. This timeout must be specified in milliseconds units.
Possible error codes for this function:
1: if no answer from module
2: if SSL socket disconnected
3: if error code from module
4: if no response from module
5: if error parsing length of received data
6: if error getting received data
7: if error waiting module confirmation
The
closeSocketSSL()
function allows the user to close a secure socket. The function needs an input parameter
for the socket identifier.
Example for SSL socket:
www.libelium.com/development/waspmote/examples/nb_iot-15-ssl-sockets