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

    Well-Known Member

    Dec 2, 2013
    827
    101
    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 :(
     
Loading...