4 Channel Relay Module Library For Proteus — ---

The 4-channel relay module library for Proteus allows you to simulate high-voltage switching circuits before physical prototyping. While Proteus includes basic relays by default, specialized libraries from platforms like Electronics Tree

Example Test Circuit:

Isolation:

Many modules feature optical isolation to protect the microcontroller from back EMF. --- 4 Channel Relay Module Library For Proteus

  • Expose all functional pins: IN1–IN4 (control inputs), VCC (logic), JD-VCC or VCC_RELAY (relay coil supply), GND, and for each channel the contacts: NO (Normally Open), NC (Normally Closed), and COM (Common).
  • Include optional pins for indicator LEDs (usually internal, not required externally) only if the simulation will model LED behavior.
  • Clearly annotate active polarity (e.g., “INx — active LOW”).

// Turn off the motor relayTurnOff(RELAY_PIN, CHANNEL_1); The 4-channel relay module library for Proteus allows

5. Troubleshooting Common Issues

  1. Microcontroller: Arduino UNO (from Proteus library).
  2. 4 Channel Relay Module: Your new component.
  3. Loads: Four LAMP models (from SIMULATOR PRIMITIVES).
  4. AC Source: ALTERNATOR set to 220V, 50Hz.

GitHub hosts several open-source Proteus libraries. Expose all functional pins: IN1–IN4 (control inputs), VCC

Wiring: