Matches the VCC, GND, and IN1-IN4 pinout of real hardware.
You do not need to manually add flyback diodes to protect against inductive voltage spikes during simulation.
To illustrate, consider a project from duino4projects. An ATmega328P-based Arduino controls four 12V relays via a ULN2003 driver IC using simple two-digit serial commands (e.g., "21" to turn Relay #2 ON). This demonstrates serial control, firmware, driver electronics, and simulation, covering everything from basic code to industry-standard workflows. 4 channel relay module library for proteus new
Proteus provides a vast library of electronic components that can be used to design and simulate electronic circuits. However, sometimes the component we want to use is not available in the library. In such cases, we need to create a new library or download one from a reliable source. In this article, we will provide a 4-channel relay module library for Proteus that you can use to simulate and design circuits.
Download and test the new Proteus 4-channel relay module library in your next microcontroller project; share feedback and real-world relay module models you’d like added (specific part numbers, footprints, or coil voltages). Matches the VCC, GND, and IN1-IN4 pinout of real hardware
The updated library file introduces features that closely mirror modern hardware variations: 1. Dual-Logic Configuration (High/Low Trigger)
Close Proteus and open it again to refresh the components list. Designing a Project with 4-Channel Relay in Proteus An ATmega328P-based Arduino controls four 12V relays via
Includes precise pin mapping for VCC, GND, and input pins (IN1 to IN4).
If the simulation does not work: