These are four different types of Relays different in shapes, sizes, and pins configuration. Let’s start with the Electromechanical relays. You can make a good Relay control circuit only if you know about the basic working principle of the Relay. Anyway, we will cover both types of relays “Electromechanical and Solid-state”. You can make automation systems using Relays, you can make solar trackers, you can make Robots, and so on. I would appreciate your support in this way! What is a Relay?Ī relay is a switch (electro-mechanical or Solid State) used to control AC and DC loads or used as the input device for monitoring faults etc. I may make a commission if you buy the components through these links. Without any further delay, let’s get started!!!
Because after reading this article you will be able to design and make any type of relay control circuit. So, if you are into learning the real engineering things, then this article is for you. In the end I will share links to these different projects. The main purpose of this article is to help you learn the designing calculations, so that you can design and make your own relay modules and then use it with Arduino Boards, ESP32, ESP8266, you can use it in the remote relay switch, radio frequency controlled circuit, wireless relay, Bluetooth Relay, you can use it as the Ethernet relay, Nodemcu relay, low voltage relay, remote relay, PLC relay, temperature relay, phase control relay, lighting relay, engine control relay, smart relay, RF relay switch, and so on. Don’t worry we will also cover the readymade relay module, as this is the ultimate Relay Control article.
If you do so you will have no control over the designing, because that’s a readymade relay module.
If your Aim is only to control a Relay, then you can simply purchase a readymade relay module connect it with the Arduino, write one or two lines of code and that’s it. Relays are my favorite and I have been using different types of relays for years.