IR pulses Sony TV Sony protocol 12bit code Buttons -> Code Power button ON/OFF A90 same code for on and off. Inside my sketch Blue_Remote_Control_V1_0.pde you must write inside for (int i = 0; i < 3; i++) { irsend.sendSony(0xA90, 12); // Sony TV power code delay(100); } For example if ( readString.indexOf("TVON")>0) { for (int i = 0; i < 3; i++) { irsend.sendSony(0xa90, 12); // Sony TV power code delay(100); } } Channel Up 90 Channel Down 890 Volume Up 490 Volume Down C90 Mute 290 AV channels (HDMI,SCART) Menu Exit