Rhydo SIM 900 SIM 900 -TTL UART Dokumentacja Pobierz pdf (Strona 172)

SIM900 AT Commands Set

SIM900_ATC_V1.01 172 23.06.2010

time

Execution

Command

AT+CIPSEND

response”> ”, then

type data for send,

tap CTRL+Z to

send, tap ESC to

cancel the

operation

Response

This Command is used to send changeable length data.

If single IP connection (+CIPMUX=0)

If connection is not established or disconnection:

+CME ERROR <err>

If sending successfully:

When +CIPQSEND=0

SEND OK

When +CIPQSEND=1

DATA ACCEPT:<length>

If sending fail:

SEND FAIL

Note

This Command can only be used in single IP connection mode

(+CIPMUX=0) and to send data on the TCP or UDP connection that has

been established already. Ctrl-Z is used as a termination symbol. ESC is

used to cancel sending data. There are at most <size> bytes that can be sent

at a time.

Write Command

1) If single IP

connection

(+CIPMUX=0)

AT+CIPSEND=<

length>

2) If multi IP

connection

(+CIPMUX=1)

AT+CIPSEND=<

n>[,<length>]

Response

This Command is used to send changeable length data

If single IP connection (+CIPMUX=0)

If connection is not established or disconnection:

+CME ERROR <err>

If sending successfully:

When +CIPQSEND=0

SEND OK

When +CIPQSEND=1

DATA ACCEPT:<length>

If sending fail:

SEND FAIL

If multi IP connection (+CIPMUX=1)

If connection is not established or disconnection:

+CME ERROR <err>

If sending successfully:

When +CIPQSEND=0

<n>,SEND OK

When +CIPQSEND=1

DATA ACCEPT:<n>,<length>

If sending fail:

<n>,SEND FAIL

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