Sim900A cipsend fail if used continuously

Discussion in 'Embedded Systems and Microcontrollers' started by aamirali, Sep 25, 2014.

  1. aamirali

    Thread Starter Member

    Feb 2, 2012
    I have configured sim900a module to send data over tcp/ip.

    First few time I am able to send data by AT+CIPSEND, then I get ''>" reply & enter the data & then 0x1A.
    After that I got "SEND OK" from module.

    But then after some continuous successes it fails. First it stop send "SEND ok" & then sometimes module don't send ">"

    1. Frequency of success & failure vary everytime.

    2. I call CIPSEND every 5 sec & send 10 bytes of data everytime.