--- 4 Channel Relay Module Library For Proteus Repack Now

: Isolate sensitive microcontroller pins from high-voltage spikes.

Open Proteus, click on the (Pick Device) button, and search for the following keywords: ARDUINO UNO (Requires Arduino Proteus library) 4 CHANNEL RELAY (Your newly installed library component) VSOURCE or ALTERNATOR (To represent 220V AC mains power) LAMP (To represent the loads/appliances) LOGICSTATE (Optional, for manual testing inputs) 2. Circuit Wiring Diagram Control Side (Low Voltage) --- 4 Channel Relay Module Library For Proteus

Alternative: Build a sub-circuit.

Optocouplers protect microcontrollers from dangerous voltage spikes. click on the (Pick Device) button

A typical 4 Channel Relay Module consists of: --- 4 Channel Relay Module Library For Proteus

: Most modules activate when the input signal (IN1-IN4) is set to Status Indicators