i need help. i have run the below code sucessfully in proteus ….but stuck in my matrix circuit ….can any1 give any details why the msg is not transmitting . can any1 give simple msg sending code or edit the below code.
// Program to interface GSM Module with 8051 microcontroller (AT89C51) using PC and LCD #include<reg51.h> #define port P2 #define dataport P0 // Data port for LCD sbit rs = port^5; sbit rw = port^6; sbit en = port^7; //sbit pi= port^3; int count=0,i,j=0,k=0; //unsigned char check,str_cz[2]={0x1A,’