Data analysis coming soon! My school is kind of strange. We don’t have a cafeteria, but we do have a four week course on “The Simpsons.” We don’t have a jungle-gym on the elementary playground, but we do have a half-buried firetruck. We don’t have a football team, but we do have a bee-keeping club. …
Relive the fun of early computer game music with an authentic 8-bit chiptune synthesizer, which you can control over MIDI from the comfort of any modern DAW software. This simple circuit uses an Arduino to drive an AY-3-8910 programmable sound generator chip (or one of its many clones) to recreate that 1980’s sound. Unlike the many designs …
In this tutorial, we are building an interesting application using Arduino and PIR Sensor. A Burglar Alarm – is basically an intruder alarm or an anti theft alarm. So this project is all about building an anti theft alarm or an intruder alarm using Arduino and PIR sensor. It is possible to enhance this project with many features …
I came pretty close to calling this one “Magnets, How do they work?” But I thought that might confuse more than it would amuse. All jokes aside, hall effect sensors are pretty cool, and also pretty simple to use, but there are a few types you may not know about and I figured it would be a …
A Strange Attraction. Various Hall Effect Sensors Using Arduino Read More »
This is a tutorial for using the 7-Key Slider/Wheel Breakout from Rachel’s Electronics. I’ll show you how to solder up the header pins for maximum usability. Rachel’s has the QT1106 datasheet on their site, and a great arduino library for this breakout. The kit from Rachel’s Electronics comes packed with cool stuff: QT1106 breakout with header pins Slider Module with header pins …
7-Key Slider/Wheel Tutorial with Synthesizer Using Arduino Read More »
Let’s say that you’re trying to drive a few Nixie clock tubes, or you want to make a strobe light. A variable high voltage DC power supply from 50-200+ volts may be required. Transformers are terrific, but difficult to find the right one and a pain to wind. Why not use a boost converter? They’re easy …
This LED DIMMER is an Arduino Uno based PWM (Pulse Width Modulation) circuit developed to get variable voltage over constant voltage. The method of PWM is explained below.Before we get start building a 1 Watt LED Dimmer circuit, first consider a simple circuit as shown in figure below. Now if the switch in the figure is closed continuously over a …
Noise pollution has really started to gain importance due to high population density. A normal human ear could hear sound levels from 0dB to 140dB in which sound levels from 120dB to 140dB are considered to be noise. Loudness or sound levels are commonly measured in decibel(dB), we have some instruments which could measure the sound …
Measure Sound/Noise Level in dB with Microphone and Arduino Read More »
Lets describe a clock… “Clock is a device that counts and shows time(relative)”!!! Guess I said it right so lets make a CLOCK with ALARM feature. NOTE: it will take 2-3 minutes in reading please read the whole project or else I will not be responsible for …
Digital Clock Using Microcontroller (AT89S52 Without RTC Circuit) Using Atmega Read More »
Tweet-a-watt – How to make a twittering power meter… This project documents my adventures in learning how to wire up my home for wireless power monitoring. I live in a rented apartment so I don’t have hacking-access to a meter or breaker panel. Since I’m still very interested in measuring my power usage on a …
Tweet-a-watt – How to make a twittering power meter… using arduino Read More »
