Relay

A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof.

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UltraSonic Liquid Level Controller

“A Simple ultrasonic liquid level controller based on STM32 microcontroller Introduction As you probably know, Iran has dry weather, and there is a lack of water in my country. Sometimes, especially in the summer, it can be seen that the …

UV-C Sterilizer

“During this pandemic, it has become extremely important to make sure that we take all the necessary steps to keep this coronavirus away from us. Since the vaccines are still under development, the only way to stop the virus is …

Gest-R: A Multi-Purpose No Touch Switch

“Gest-R is state of the art gesture switch made to elegantly replace normal electrical switches. Introduction We often come across situations where we have to switch on and off devices in a public space, like fan in an office or …

Store Your Headphones in Style

“I really love my different headphones. However, when you have just two ears like me you will likely only use one pair of them at most at a time. Therefore I want to show you in this instructable how you …

There oughta be an irrigation system

“As you will see, just a simple system that turns the water on or off was not sufficient. I will show you all aspects of this Arduino based system in this article and provide the source code. The difference to …

COVID-Free Contactless Cordless Bell Using

“Year 2020, has taught us many new things. Our lifestyle has changed and we have adopted to many new and safe ways of livelihood. From social distancing to working from home, our main aim these days is to stay safe …

Smart Flower Pot

“A smart watering system that automatically waters a plant. Story For this project, we had to include a set of components we had needed to include: The BME280, Seeed Grove Dust sensor, Seeed Grove air quality v1.3 sensor, Capactive …

UV disinfection robot

“Ultraviolet disinfection remote controlled robot with automatic human detection and collision avoidance. In this amid pandemic the disinfection is very essential to prevent spreading viruses. It affected every walks of our life directly or indirectly. The disinfection is very difficult …

Automated Garden System Built on Raspberry Pi for Outdoors or Indoors - MudPi

“Do you like gardening but can’t find the time to maintain it? Perhaps you have some houseplants that are looking a little thirsty or looking for a way to automate your hydroponics? In this project we will solve those …

Clap-on Switch

“A relative asked me one time if i could create a switch that reacts to clapping your hands. So i’ve orderd some stuff to create a project and decided to make a instructable so everyone could have a awesome …