The system monitors pH, TDS, temperature, humidity and water level. It also includes an air pump for oxygenating the plant roots and a PID controlled peristaltic pump for automatic pH adjustment (which pumps a pH reduction solution). The Arduino Nano reads the sensor data and controls the air pump and the peristaltic pump, while the…
Upgrade Your Headphones by Making it Wireless In today’s video I want to show you how to make wireless headphones from wired ones! You need only 4 cheap components: $2 bluetooth stereo module, $2.5 battery, $0.5 charger port and $0.2 switch! All modifications will cost you less than $5 ! More info
Mix minus is an audio production technique that lets you get all of your audio signals where they need to go while avoiding problems such as feedback, interference, etc. It can come in handy if you’re on a video call, a livestream or other similar technical situations. There’s a million different ways to do…
Innovation remains the absolute protagonist. The mission is promoting progress through the sharing of ideas by creating a virtuous ecosystem between makers, companies, institutions, schools, universities and research centres. Over 300 stands with ideas, prototypes and innovative projects are ready to be unveiled, and dozens of live conferences have already been set up. The many…
It will be possible to access the platform during the days of the event with a simple registration (all useful information will be available on the portal https://makerfairerome.eu/it/). To improve the visitor’s experience, you just have to profile yourself by expressing preferences on the themes and activities that you expect to find during the event….
A transistor is defined as a semiconductor device that’s fundamentally built with three terminals for amplifying or switching electronic signals and electrical power purposes. Commonly classified into Bipolar Junction Transistors (BJT), and Field Effect Transistors (FET), these devices allow for the existence of radios, computers, calculators, etc. that you use today. Well, with modern-day…
Introduction The imminent large-scale rollout of 5G technology imposes new and tough challenges for designers of PCB, network equipment and electronic devices in general. 5G will not only represent an increase in data rates, but it will be a real revolution, with latency times reduced up to 1ms and the use of millimeter waves (mmWave)…
I wanted to do timelapse video of some plants growing in a pot on my window sill so I wrote Windows 10 IoT Core Universal Windows Platform (UWP) background task to capture images and store them to the local file system of a Raspberry Pi or DragonBoard 410C devices. The first version was pretty rough so for the next one I moved all the…
Given the attack we are subjected to due to CoronaVirus (Covid-19), we have decided to sterilize whatever enters in the house, fruit, newspapers, books, etc, using ultra violet UV-C rays. Caution: UV-C rays are dangerous for skin and eyes so, close everything in a container that you will put on top of the things to be sterilized. One of the side effects of…
ReSpeaker Messenger: Sending and receiving Slack and Telegram messages using ReSpeaker Voice Interaction Board My previous project using ReSpeaker was a Home Automation project to control different lights using your voice. This projects is about sending messages to Slack or Telegram using voice input and read out the message from the messenger. User can…
Resin 3D printers are finally cheap enough that peons like us can finally buy them without skipping too many meals, and what means we’re starting to see more and more of them in the hands of hackers. But to get good results you’ll also want a machine to cure the prints with UV light;…
If you don’t have a ready source of high voltage, here’s an easy way to build one from the aptly-named [HVZapp]. The parts list is pretty simple to acquire, except for the transformer. For that, [HVZapp] raided a broken arc lighter. It took us a minute to realize that the MOSFETs are in parallel. The hand-drawn…
Open-Electronics.org is the brainchild of a world leader in hobby electronics Futura Group srl. Open-Electronics.org is devoted to support development, hacking and playing with electronics: we share exciting open projects and create amazing products!
Open-Electronics.org is not just a container of ideas: it is also a web site lead by a team of engineers and geeks who will take part in the discussions and give support.
Our mission is to become a reference Open Source hacking site with ideas and feedback aimed to enrich the community.
