4 Channel Relay Module Library For Proteus New Site

C:\Program Files (x86)\Labcenter Electronics\Proteus 8 Professional\LIBRARY .

To simulate switching behavior:

Check the library variant. If you are using ACTIVE_HIGH but sending a LOW signal, the relay will never turn on. Change your digitalWrite() to HIGH to activate, or switch to the ACTIVE_LOW part. 4 channel relay module library for proteus new