Searching for the HT12E (Encoder) HT12D (Decoder) library in Proteus can be tricky since they are not always included in the default installation. Download Links for HT12E & HT12D Proteus Library
Use these, match the 8-bit address, and your simulation will work flawlessly. If you still face issues, consider using the Virtual Terminal to monitor the DOUT pin of HT12E—you should see a burst of serial data when a button is pressed. No data? Check your TE pin connection. Ht12e And Ht12d Proteus Library File Download
Direct Library Downloads: Verified library packages are available on platforms like The Engineering Projects or through community-shared resources on Google Drive. Searching for the HT12E (Encoder) HT12D (Decoder) library
After downloading the ZIP, you should see three files: No data
Note: The "ProgramData" folder is usually hidden by Windows. Make sure to enable "Show hidden files" in your file explorer. Paste the Extracted Files Copy both the .LIB and .IDX files that you extracted. Paste them directly into the Proteus LIBRARY folder. Restart Proteus If you have Proteus open, close and reopen it.
Proteus 8: C:\Program Data\Labcenter Electronics\Proteus 8 Professional\LIBRARY (Note: ProgramData is a hidden folder).
Copy Files: Copy the extracted HT12E/HT12D .LIB and .IDX files into this directory.