Quote Originally Posted by aratti View Post
Chakkarapani, you are not saying much about your hardware. I hope you have used a max3232 to connect the Fbus to the PC otherwise you have burned the Rx line. (Fbus is 3.3 Volts)

Alberto
Hi aratti , Can you please give me a schematic for connecting SIM300CZ (www.sim.com) and pic 16F877A. mainly the Tx Rx line