A 5-Way Relay Module Optocoupler Isolation is an electrically operated switch that can be turn on or off, letting the current go through or not, and can be control with low voltages, like the 5V provide by the Arduino pins. Controlling a relay module with the Arduino is as simple as controlling any other output as we’ll see later on.

Description

A relay is an electrically worked switch that can be turn on or off, allowing the current go through or not, and can be control with low voltages, like the 5V provide by the Arduino pins. Controlling a relay module with the Arduino is as simple as controlling any other output as we’ll see later on.

Features:

1. Supply voltage is 5V
2. IO port level: high-level 3.3V
3. Communication method: serial communication (TTL level), RS485 communication (MAX3485)

This control panel has already downloaded the default matching program from the workshop. Users only need to connect to the serial port (P6 port) of the relay board through the USB to TTL downloader to debug (download).

• By a single-chip controller, you can customize the control mode according to individual needs;
• With MAX485, can achieve ultra-long-distance communication control, multi-machine cascade communication, smart home is a good helper;
• Via optocoupler isolation and freewheeling diode to ensure the stability of the plate system;
• 5 relays work independently, and can  control by normally open and normally close ports;
• With 5V DC power supply, communication integrated interface, download the program to complete the update;
• With independent relay control port, do not need the single-chip control on the board, directly receive the external signal is the relay work

Package Includes:

• 1x  5-Way Relay Module Optocoupler Isolation With Single-Chip RS485 Communication UART Serial Port TTL Communication. 5-Way Relay Module Optocoupler Isolation With Single-Chip RS485 Communication UART Serial Port TTL Communication

An internal link is any link from one page on your website to another page on your website. Both your users and search engines use links to find content on your website. Your users use links to navigate through your site and to find the content they want to find. Search engines also use links to navigate your site. They won’t find a page if there are no links to it.

There are several types of internal links. In addition to links on your homepage, menu, post feed, etc, you can also add links within your content. We call those contextual links. Contextual links point your users to interesting and related content. Moreover, they allow search engines to find out what content on your site is related and to determine the value of that content. The more links an important page receives, the more important it will seem to search engines. Therefore, good internal links are crucial to your SEO.