On-line shopping has changed the way goods are acquired. For most packages it is not necessary to be around for the dropoff. But… for the important stuff it is. Those packages always seem to show up right when you are in the backyard for mere seconds causing that frustrating “Personal Signature Required for Delivery” note on the…
Having many 18650 battery cells to charge, I bought a few dirt cheap TP4056 modules (0.22 EUR per piece) and discovered that they are “not designed for” reversed polarity cells. In other words, reversed battery = instant magic smoke. As I know for sure I will insert more batteries in the wrong orientation again sooner or later, I…
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…
It happened to everyone, you buy an avocado, it’s not ripe yet. A few days pass by, and by the time it’s ripe you have forgotten about it… and in a few days, it may go bad! lucky for you we designed and built AvoRipe, a device that checks your avocado twice a day, or…
Stopwatches are very useful in several applications and made by yourself using an Arduino, it is really more interesting! This project is really simple, easy to be assembled using few components and has an excellent accuracy and responsiveness including the following features: The stopwatch shows the time in minutes, seconds and tenth of seconds. The…
It was a dream then a challenge, then it became a reality. The motivation was to teach to the young generations in preparatory, secondry and technical secondry schools in my country Egypt how to manufacture a walking Robot from simple and low-cost materials. Actually، I proposed this work to you because your opinions, comments…
Do you ever suddenly get the chills, so you check the temperature inside your room to make sure you’re not paranoid but then realize you don’t have any way to check? Or when the weather station’s predictions just seem too good to be true, so you double check the forecast for the nearest major…
We wanted a display in our makerspace that could be updated as visitors interacted with the space. This project serves as a template for future IoT device to communicate with the display via MQTT. We have many games in our space and would like to integrate high score achievements with the display. Also, we…
I built a small midi decoder based on Arduino UNO, to signal when the stops was turned on and off in the GrandOrgue (or Hauptwerk) software. Arduino reacts to incoming messages from MidiON and MidiOFF on any channel, lighting or extinguishing LED connected to pins 2 to 13 and A0 to A5. To simplify…
This project is an Arduino-based alarm to monitor if the computer is working. In case the computer freezes, it will emit a warning sound signal. The project is composed from two parts: a program which runs on the computer, and an Arduino connected in an USB port. The computer programs sends a predefined character…
The art of firebending as seen in Avatar: The Last Airbender and The Legend of Korra is a melding of Asian martial arts and pyrokinesis. So how can we control fire with fancy fight moves in real life? With Arduinos, of course! The flamethrower part of this project is composed of a butane fuel…
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