Content for Relay

Cheap All Sky camera project with Raspberry Pi

“All Sky meteorite camera build under 150$. My friend Jani made a program to capture night sky events with cheap Raspberry Pi hardware. Now the program is out of beta and new version supports all Raspberry Pi versions and camera …

Upcycling Dishwasher

“I used an Arduino Nano to fix my dishwasher. Story I had that all-high-voltage oldie dishwasher that stopped working. Its program switch has burned and I could not find the replacement part. But it is a quite good challenge for …

DIY Arduino based Bobbin Winding Machine

“Hello makers in this post about DIY automatic Arduino based bobbin winding machine. Bobbins are the small metal spools used in sewing machine, bobbins are filled with thread to stich cloths. This bobbins are frequently getting empty and you need …

DIY RFID DOOR LOCK System

“How To Make Arduino Based Rfid Door Lock The arduino based RFID door lock system is secure and responsive as compared to other systems. With the use of arduino, it becomes much easy to design. Program a code and upload …

Smart gardening without coding - all free and open source

“All open source, no coding, remote accessible DIY automated smart irrigation. Not this time! I’ve been growing some tomatoes, chili peppers and other vegetables on my balcony for a couple of years now and while in general I did …

Solar Scare Mosquito 2.0

“An open-source IoT platform to monitor and prevent epidemics such as Malaria, Dengue and the Zika Virus. This solar-powered device eliminates mosquito larvae in stagnant water bodies such as water tanks, swamps and micro-dams. The system allows mosquitoes to lay …

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 …