8-Channel 5V Relay Module for Arduino Raspberry Pi –

APPLICATION 1. Christmas Light Project   DESCRIPTION A Relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate the switch and provide electrical isolation between two circuits.   This 8 channel 5V relay has both optical and magnetic isolation,  providing a lot of protection to the inputs from electrical faults on the outputs. Works well with both 3.3V and 5V logic (Raspberry Pi, Arduino, Teensy..), requiring little current drive. Breadboard friendly, using Female/male Dupont makes it extremely convenient for prototyping. LED indicates its working status. Red refers to errors. 3 terminals per SPDT relay. All of these features make SainSmart relay a great component for automation projects.   DOCUMENT (Learn) 8+Relay+Module.rar Diagram: How to wire a Raspberry Pi to a Sainsmart 5V relay module Strongly recommended: SainSmart 8 channels WiFi remote control model.  It works with the 8 channel
Low level trigger 8-channel relay capable of controlling 10A 30V DC or 10A 250V AC signals. Can be used with Arduino microcontroller or Raspberry Pi. Commonly used for driving high voltage devices such as lights and fans with a low voltage connected to MCU.

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