hello all…
I am also trying to interface GSM modem(sim 900) along with micro controller using PC and LCD. I have followed the instructions provided in this website! The link to the that is given below:- http://www.engineersgarage.com/microcontroller/8051projects/interface-gsm-module-8051-microcontroller-circuit-code.
But the thig is when i execute it, there is no echoing from thePC when I type AT Commands in the hyper terminal, also my LCD is completely blank and does not show any message. I am using NXP micro controller (P 89V51RD2BN).
ANy help in this regard would be highly appreciated.
Thank you..