1. phamtrieu.htk

    Thread Starter New Member

    Mar 1, 2017
    2
    0
    Hi all. I have 1 project use SIM800c to send and recieve SMS.
    I powed up SIM800c (using PWKEY pin).
    If i don't send "AT" command, then i call to sim800c, sometimes Sim800c do not send data via uart. but, if i send "AT" command then i call, Sim800c send data via uart.
    so i have a question: have i send "AT" command to initial Sim800c?
     
  2. Picbuster

    Active Member

    Dec 2, 2013
    811
    100
    Look at the at command set available from simcom
    Picbuster
     
  3. phamtrieu.htk

    Thread Starter New Member

    Mar 1, 2017
    2
    0
    Thanks. but i can not find any thing from simcom :(
     
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