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“This tool signals optically and acoustically in several stages when the minimum safety distance is undershot. The problem One of the most effective ways to prevent the spread of COVID-19 and other viral and cold diseases is to keep …
“DUAL USB HOST/HUB OUTPUT WITH CONSTANT CURRENT LIMIT/PROTECTIONRajkumar Sharma 122 Views moderate Tested This project has 2 outputs that enable us to power up 2 USB devices simultaneously from an input supply of 12-30V DC. The idea of …
“My first dub siren build was a little over complicated. Although it worked well, you needed 3 x 9V batteries to power it which was overkill and I had to build the main circuit on a prototype board. The first …
“This is a simplest EM field detector you can find on the internet. I designed it myself and it’s explained how it works in the next step. Basically what you will need, are two transistors some resistors, antenna for …
“A simple and easy to Car Robot controlled via Gamepad using web socket technology. This project is about Wi-Fi controlled car, called Car Robot, which uses a gamepad displayed on a web browser of a mobile phone as a controller …
“For this project, explore Raspberry Pi port expansions using Java, serial, and Arduino. As members of the maker community, we are always looking for creative ways to use hardware and software. This time, Patrick Lima and I decided we wanted …
“The FreeDeck aims to be a Free/OpenSource replacement for Elgatos Streamdeck and similar. It works by creating a config file with the FreeDeck Configurator, loading it onto an SDCard and inserting it into the FreeDeck. You don’t need …
“The other day I started thinking about our chest freezer and all of the hundreds of dollars worth of food that we have in there. What if it fails and goes unnoticed for a while? The freezer is getting older …
“I’ll be showing you how to make a personal mini desk fan out of an old computer. A bonus is that it even fits in your pocket. This is a very simple project, so not much experience or expertise …
“Fetching or posting data to the internet is one of the core tasks of an IoT device. Doing so over HTTP is implemented quite well in the default ESP8266 Arduino libraries, but for HTTPS requests things are more difficult. In …