IR pulses Carrier Air Conditioner Use Nec protocol 32bit code Buttons -> Code Power button ON,HEAT MODE,TEMP 25,FAN AUTO CODE IS: B335A1BA Power button ON,COOL MODE,TEMP 25,FAN AUTO CODE IS: B335A163 Power button ON,DRY MODE,TEMP 25,FAN AUTO CODE IS: B335A1A7 Power button ON,AUTO MODE,TEMP 25,FAN AUTO CODE IS: B335A18E Power button OFF,HEAT MODE,TEMP 25,FAN AUTO CODE IS: B335D1BA Power button OFF,COOL MODE,TEMP 25,FAN AUTO CODE IS: B335D163 Power button OFF,DRY MODE,TEMP 25,FAN AUTO CODE IS: B335D1A7 Power button OFF,AUTO MODE,TEMP 25,FAN AUTO CODE IS: B335D18E Inside my sketch Blue_Remote_Control_V1_0.pde you must write inside irsend.sendNEC(0xB335A1BA,32);//SEND CARRIER POWER delay(100); For example.... if ( readString.indexOf("ACON")>0) { irsend.sendNEC(0xB335A1BA,32);//SEND CARRIER AC POWER ON,HEAT MODE,AUTO FAN,TEMP 25 delay(100); } Results from decoder...for extra functions... Temperature Up FAN III Received NEC: B335AC0A Received NEC: B335AC0A Received NEC: B335DC0A Received NEC: B335DC0A Received NEC: B335AC0A Received NEC: B335AC0A Received NEC: B335940A Received NEC: B335940A Received NEC: B335980A Received NEC: B335980A Received NEC: B335900A Received NEC: B335900A Received unknown code, saving as raw m8500 s4150 m600 s1500 m600 s450 m600 s1500 m600 s1500 m600 s350 m700 s350 m700 s1450 m650 s1450 m650 s300 m700 s450 m600 s1500 m600 s1500 m600 s350 m700 s1500 m600 s350 m700 s1500 m600 s1500 m600 s450 m600 s450 m600 s1500 m600 s450 m600 s450 m600 s350 m700 s400 m650 s400 m650 s450 m600 s450 m600 s400 m650 s1450 m600 s450 m600 s1500 m600 s450 m600 Received unknown code, saving as raw m8500 s4100 m650 s1450 m650 s350 m700 s1450 m650 s1450 m650 s300 m700 s350 m700 s1500 m600 s1500 m600 s350 m700 s450 m600 s1500 m600 s1500 m600 s450 m600 s1500 m600 s450 m600 s1500 m600 s1450 m650 s400 m650 s350 m700 s1450 m650 s400 m650 s400 m600 s450 m600 s450 m600 s450 m600 s350 m700 s450 m600 s450 m600 s1500 m600 s450 m600 s1500 m600 s450 m600 Received unknown code, saving as raw m8500 s4150 m600 s1500 m600 s450 m600 s1500 m600 s1500 m600 s350 m700 s450 m600 s1450 m650 s1450 m650 s400 m650 s400 m600 s1500 m600 s1500 m600 s500 m550 s1500 m600 s450 m600 s1500 m600 s1500 m600 s450 m600 s450 m600 s1500 m600 s450 m600 s450 m600 s450 m600 s450 m600 s450 m600 s450 m600 s400 m650 s400 m650 s1450 m650 s400 m600 s1500 m600 s500 m550 Received NEC: B335900A Received NEC: B335900A Received NEC: B335980A Received NEC: B335980A Received NEC: B335940A Received NEC: B335940A Received NEC: B3359C0A Received NEC: B3359C0A Received NEC: B335920A Received NEC: B335920A Received NEC: B3359A0A Received NEC: B3359A0A Received unknown code, saving as raw m8500 s4100 m600 s1500 m600 s500 m550 s1500 m600 s1500 m600 s350 m700 s450 m600 s1500 m600 s1500 m600 s450 m600 s450 m600 s1450 m650 s1450 m650 s400 m650 s1450 m650 s450 m600 s1450 m650 s1450 m600 s350 m700 s500 m550 s1500 m600 s350 m700 s1500 m600 s1500 m600 s450 m600 s450 m600 s450 m600 s450 m600 s450 m600 s1450 m650 s400 m650 s1450 m650 s400 m650 Received NEC: B3359E0A Received NEC: B3359E0A Received NEC: B335910A Received NEC: B335910A Received NEC: B335990A Received NEC: B335990A Received NEC: B335950A Received NEC: B335950A Received NEC: B3359D0A Received NEC: B3359D0A Received NEC: B335930A Received NEC: B335930A Received NEC: B3359B0A Received NEC: B3359B0A Received NEC: B335970A Received NEC: B335970A Received NEC: B3359F0A Received NEC: B3359F0A Temperature Down HEAT MODE FAN III Received NEC: B335970A Received NEC: B335970A Received NEC: B3359B0A Received NEC: B3359B0A Received NEC: B335930A Received NEC: B335930A Received NEC: B3359D0A Received NEC: B3359D0A Received NEC: B335950A Received NEC: B335950A Received NEC: B335990A Received NEC: B335990A Received NEC: B335910A Received NEC: B335910A Received NEC: B3359E0A Received NEC: B3359E0A Received NEC: B335960A Received NEC: B335960A Received NEC: B3359A0A Received NEC: B3359A0A Received NEC: B335920A Received NEC: B335920A Received NEC: B3359C0A Received NEC: B3359C0A Received NEC: B335940A Received NEC: B335940A Received NEC: B335980A Received NEC: B335980A Received NEC: B335900A Received NEC: B335900A TEMPERATURE UP FAN AUTO HEAT MODE Released Received NEC: B33598BA Received NEC: B33598BA Received NEC: B33594BA Received NEC: B33594BA Received NEC: B3359CBA Received NEC: B3359CBA Received NEC: B33592BA Received NEC: B33592BA Received NEC: B3359ABA Received NEC: B3359ABA Received NEC: B33596BA Received NEC: B33596BA Received NEC: B3359EBA Received NEC: B3359EBA Received NEC: B33591BA Received NEC: B33591BA Received unknown code, saving as raw m8500 s4100 m650 s1450 m650 s350 m700 s1450 m650 s1450 m600 s500 m550 s500 m550 s1500 m600 s1500 m600 s400 m650 s450 m600 s1450 m650 s1450 m650 s400 m650 s1450 m650 s450 m600 s1450 m650 s1450 m650 s450 m600 s450 m600 s1450 m650 s1450 m600 s450 m600 s450 m600 s1500 m600 s1500 m600 s450 m600 s1450 m650 s1450 m650 s1450 m650 s450 m600 s1450 m650 s450 m600 Received NEC: B33595BA Received NEC: B33595BA Received NEC: B3359DBA Received NEC: B3359DBA Received unknown code, saving as raw m8500 s4100 m650 s1450 m650 s450 m600 s1450 m650 s1450 m650 s350 m700 s450 m600 s1450 m600 s1500 m600 s500 m550 s450 m600 s1500 m600 s1450 m650 s450 m600 s1450 m650 s450 m600 s1450 m650 s1450 m650 s450 m600 s450 m600 s1450 m650 s450 m600 s450 m600 s1450 m600 s1500 m600 s1500 m600 s450 m600 s1500 m600 s1500 m600 s1450 m650 s450 m600 s1450 m650 s450 m600 Received NEC: B3359BBA Received NEC: B3359BBA Received NEC: B33597BA Received NEC: B33597BA Received NEC: B3359FBA Received NEC: B3359FBA Received NEC: B3359FBA Received NEC: B3359FBA TEMPERATURE DOWN HEAT MODE FAN AUTO Pressed, sending Sent raw Released Received NEC: B33597BA Received NEC: B33597BA Received NEC: B3359BBA Received NEC: B3359BBA Received NEC: B33593BA Received NEC: B33593BA Received unknown code, saving as raw m8500 s4150 m600 s1500 m600 s400 m650 s1450 m650 s1450 m650 s400 m650 s400 m650 s1450 m650 s1450 m600 s450 m600 s450 m600 s1500 m600 s1500 m600 s450 m600 s1500 m600 s450 m600 s1500 m600 s1500 m600 s450 m600 s350 m700 s1450 m650 s1450 m650 s1450 m650 s400 m650 s1450 m600 s1500 m600 s350 m700 s1500 m600 s1500 m600 s1500 m600 s450 m600 s1500 m600 s450 m600 Received NEC: B33595BA Received NEC: B33595BA Received NEC: B33599BA Received NEC: B33599BA Received NEC: B33591BA Received NEC: B33591BA Received NEC: B3359EBA Received NEC: B3359EBA Received NEC: B33596BA Received NEC: B33596BA Received NEC: B3359ABA Received NEC: B3359ABA Received NEC: B33592BA Received NEC: B33592BA Received NEC: B3359CBA Received NEC: B3359CBA Received NEC: B33594BA Received NEC: B33594BA Received NEC: B33598BA Received NEC: B33598BA Received NEC: B33590BA Received NEC: B33590BA Received NEC: B33590BA Received NEC: B33590BA Mode Fan Mode Cool Mode Dry Mode Auto Mode Heat Fan speed Flaps AUTO FAN HEAT , TEMP PULSES HEAT 17 ON/OFF A0 / D0 HEAT17 ON/OFF FAN I A07A / D07A HEAT17 ON/OFF FAN II A0FA / D0FA HEAT17 ON/OFF FAN III A00A / D00A HEAT 18 ON/OFF AUTO fAN A8 /D8 HEAT 19 ON/OFF A4 / D4 HEAT 20 ON/OFF ACBA / DCBA HEAT 21 ON/OFF A2BA/D2BA HEAT 22 ON/OFF AABA / DABA HEAT 23 ON/OFF A6BA / D6BA HEAT 24 ON/OFF AEBA/DEBA HEAT 25 ON/OFF A1BA / D1BA Heat 26 ON Received NEC: B335A9BA Heat 26 OFF Received NEC: B335D9BA Heat 27 ON A5BA Heat 27 OFF D5BA HEAT 28 ON/OFF ADBA / DDBA HEAT 29 ON/OFF A3BA / D3BA HEAT 30 ON/OFF ABBA / DBBA HEAT 31 ON/OFF A7BA / D7BA HEAT 32 ON/OFF AFBA / DFBA COOL MODE ON/OFF FAN AUTO COOL 20 ON/OFF FAN AUTO AC63 /DC63 COOL 22 ON / OFF FAN AUTO AA / DA COOL 25 ON/OFF FAN AUTO A163/D163 COOL 26 ON/OFF FAN AUTO A963/D963 COOL 28 ON/OFF FAN AUTO AD / DD COOL 30 ON/OFF FAN AUTO AB /DB DRY MODE FAN AUTO TEMP25 ON / OFF ON Received NEC: B335A1A7 Received NEC: B335A1A7 OFF Received NEC: B335D1A7 Received NEC: B335D1A7 AUTO MODE TEMP25 FAN AUTO A18E / D18E