Evan Kale is back with another hack. This time, the YouTuber decided to convert a weed wacker-like toy into a metal detector with the help of an Arduino Uno. As Kale explains, the project is based on a Colpitts Oscillator, which combines an LC circuit with a transistor amplifier for feedback. The frequency of oscillation is somewhere in the […]
Gone are the days of fumbling with your keys! Adham Negm has come up with a way to open your door with a simple hand gesture while holding your smartphone. To accomplish this, Negm uses an Arduino Uno, a servo motor to move the bolt, and a 1Sheeld to interface with the smartphone. The 1Sheeld reads the device’s accelerometer data, and then activates the servo when it recognizes […]
YouTuber “Mom Will Be Proud” and his family have a cat. And like all pets, their feline friend requires fresh food every morning. But rather than disrupt your sleep or daily routine, why not build an automated feeder using some spare parts? This is exactly what the Maker did using an Arduino, a servo, a simple button, a power supply, and […]
Do you or your significant other have trouble sticking to a budget? Well, say goodbye to overspending with the iBag2: a high-tech wearable device that helps curb your impulse buys. The iBag2 is equipped with a Genuino Uno, a 10,000mAh power bank, and several other interesting components. There’s a timer connected to electromagnets that lock the bag according to your most vulnerable […]
Not only can asthma be difficult to diagnose, it can be fatal if left undetected. As a result, many kids are over-diagnosed with the disease, especially those under five, and over-treated with inhalers which leads to reduced growth and immunity. At just age nine, Arnav Sharma discovered that the best way to manage asthma is to prevent attacks by understanding their triggers and […]
Inspired by a project he found over on Instructables, Maker JoEtuuube has created an Arduino-based waveform generator using an 8-bit resistor ladder DAC that can precisely produce different common waveforms at frequencies between 1Hz and 20Khz in sine-wave, sawtooth, triangle and various ratios of square wave. It features a speaker and a small LCD display. A neat thing about the LCD is that it’s actually […]
Created by “modulogeek,” the Monomepi Step Sequencer is a step sequencer that uses a Monome as an input controller and a toy glockenspiel as the output instrument. The brain of the device is a Raspberry Pi 3, which runs a step sequencer program written in Python. Both the Monome interface and an Arduino Uno are connected to the Pi via […]
If you’ve been looking for a simple audio Arduino project, you may want to check out this VU meter from YouTuber RZtronix. The Maker built the device using an Uno along with some LEDs, a couple wires, a breadboard, a sound sensor, and a 5V power supply.
Have you ever wanted to have a light show that reacts to what you play through you’re favorite electric instrument? Georgia Tech grad student Wil Roberts has, and so he created a guitar-controlled LED display–an impressive project that combines both his Maker and musical chops. To accomplish this, Roberts used an Arduino Uno along with an Adafruit 16×32 RGB LED matrix […]
Although automated pet feeders seem to be a dime a dozen these days, Benjamin Millam’s project is on a whole ‘nother level. Last year, the Maker created a system that caters to the primal instincts of his indoor cat, Monkey, by training him to look for plastic balls hidden around the house and then drop them into the machine. Once the apparatus recognizes the RFID-tagged balls, food gets […]
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