thank you for reply Rob.

i think i want use bluetooth. because must send data. but i cant find bluetooth module with at command. if use bluetooth module with at command that not to difficult to comunication with PIC.

have some one find bluetooth module with at command and cheap price.

i want control 20 light and range 20 meter.. i can on and off the light using wireless and check the light already on or off.

Rob if u thing using ir more easy can u help me..