Wrote a program, half an hour with mas machine send text messages to a specific number, and the cat has been polling messages are received text messages, but time is long after the at + CMGL directly reply ok, and no text messages,
Before the message cat pull heavy can good, can read before received all the messages, you must restart your computer now

How be to return a responsibility excuse me?

CodePudding user response:

Isn't it time interval too short

CodePudding user response:

reference 1st floor luxuewei5214 response:

time interval is too short

Polling frequently? About 10 minutes at a time

CodePudding user response:

Is found after a long time after the SMS cat normally on red led lamp, at + creg return stat for 2, there is no registration
Is is no problem,,
Power is again good,

CodePudding user response:

LZ are there materials to send and receive messages in English, if I may ask, to share,

CodePudding user response:

This may be the SMS cat itself,

CodePudding user response:

SMS cat will pick up the COM directly, or use USB conversion, if use USB conversion, the power energy saving effect,