I am doing a project on Controling and Monitoring System using GSM Modem. Can I use Keil and 8051 to do make such a system?
"you need enter the phine number and messamge you want to send and than press ctrl ^z"
And you need to form all that into the appropriate AT Command - as described in the links already given.
"putchar (26); or putchar (0x26);"
They can't both be correct, can they?! Either the hex is right and the decimal is wrong, or vice-versa
It is left as an exercise for the student to look it up in an ASCII chart and determine which is the correct code...