ALTERNATE | Electronics › Electronics › Use of HT12D and HT12E › ALTERNATE May 5, 2015 at 8:57 am #12862 m venugopalParticipant Yes absolutely HT12E and 12D are for RF but by simple changes at transmitter we may use for IR also. In order to use a IR LED you need to change the encoder to the HT12A series, On the decoder side keep to use the HT12D.
