4-Channel 12V Relay with USB Programmable Computer Control

This is USB controlled relay Board with 4 channels. It's used the HID technology, so no need to install any driver in windows system and you can easy to use. We also provide an application and the C++ develop library that you can easy to integrate this module to your project.

This module can be used:

1. Home automation
2. Robotics Control
3. Control doors and windows via windows system
4. Controller power supply

Application:

1. Supply the application code
2. Supply C++ lib and dll for building your own project (include usb_relay_device.dll, usb_relay_device.lib, usb_relay_device.h)