π β search "HT12E HT12D Proteus Library" or π GitHub user eagleanurag β has a working simulation example.
The Ht12e is an encoder IC that converts parallel data into serial data, while the Ht12d is a decoder IC that converts serial data back into parallel data. These ICs are designed to work together seamlessly, making them a popular choice for wireless communication systems. Ht12e And Ht12d Proteus Library File Download