--- 4 Channel Relay Module Library For Proteus -

He dragged the component onto the schematic. The difference was immediate. What used to take forty wires now took twelve. He wired the inputs to PORTB of his PIC microcontroller, connected the VCC to 5V, and grounded the GND. He connected four LEDs to the NO (Normally Open) terminals of the relays.

Copy both the .LIB and .IDX files into the LIBRARY folder. --- 4 Channel Relay Module Library For Proteus

If you open Proteus 8 or Proteus 9 and search for "RELAY", you will find generic parts like RELAY or RLY-SPST . While these work for a single relay, they are problematic for a 4-channel module simulation: He dragged the component onto the schematic