Arduino 4 Relay Shield

The Arduino 4 Relays Shield is a practical solution for controlling high-power loads, which cannot be controlled directly by the digital I/O pins of an Arduino due to their current and voltage limits. The shield is equipped with four relays, with each relay providing two changeover contacts (NO and NC). The contacts of each relay are connected in parallel to increase the current limit of each output. Four LEDs indicate the on/off status of each relay, providing a clear visual indication of their operation.

This shield is ideal for projects that require switching higher voltages and currents, such as controlling motors, lamps or other electrical devices. Its easy integration with Arduino boards allows it to be used in a wide range of applications, from home automation to industrial control systems.