Optical isolation (optoelectronics) to protect the microcontroller from voltage surges.
在Proteus中运行仿真后，打开串口终端窗口，发送“00”关断第一路继电器，发送“11”开启第二路继电器。可以观察到对应的LED指示灯亮起或熄灭，继电器触点状态随之变化。这套方案适用于家居自动化、工业继电器控制面板、电器开关控制、IOT网关扩展及实验室自动化等多种应用场景。
Place the module onto your schematic alongside an Arduino Uno or your microcontroller of choice. Connect the terminals according to this standard layout: 4 channel relay module library for proteus new
If your simulation fails to execute correctly, check for these common configuration errors:
The latest libraries available (often updated for Proteus 8.0, 8.10, and newer) offer several improvements: How to Download and Install the New Library
Visual status lights displaying which specific channel is currently active. How to Download and Install the New Library
A connecting an Arduino to a 4-channel relay. The C code to control the relays. How to simulated AC loads in Proteus. 4 channel relay module library for proteus new
While Proteus contains individual components like standalone relays, transistors, and diodes, using them to build a 4-channel module from scratch is tedious. A dedicated library provides several advantages:
Once you have either wired the 4 relays or imported the module, here is a simple Arduino sketch to test the simulation.