Frequency Counter using Arduino

Almost every electronic hobbyist must have faced a scenario where he or she must measure the frequency of signal generated by a clock or a counter or a timer.  We can use oscilloscope to do the job, but not all of us can afford an oscilloscope. We can buy equipment for measuring the frequency but all these devices are costly and are not for everyone. With that in mind we are going to design a simple yet eff ...

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Quizmo

This project is related to developing a handy gadget to help kids practice basic arithmetic operations. I decided to make it as my kids were very lazy to look into the books and come back very soon saying that they have done it (specially multiplication tables). This gadget randomly asks different questions and evaluate kids performance. For this you need a 4x3 keypad to interact with the gadget and an LCD ...

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Arduino Project # 1 – Make an Ultrasonic Distance Calculator

Arduino Project – The distance calculator I have been playing with Arduino (micro-controller) for about 2 years now and I am becoming more and more passionate about circuits. For those who are not aware of Arduino, check out my article “Arduino – A Guide for Beginners“. Recently, I was testing some new components that I ordered, which included an ultrasonic sensor and an LCD. I found an article online that ...

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Make an Ultrasonic Distance Calculator

Arduino Project – The distance calculator I have been playing with Arduino (micro-controller) for about 2 years now and I am becoming more and more passionate about circuits. For those who are not aware of Arduino, check out my article “Arduino – A Guide for Beginners“. Recently, I was testing some new components that I ordered, which included an ultrasonic sensor and an LCD. I found an article online that ...

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LED Calculator with Rotary Quadrature Encoder for Target System Voltage Selection using Arduino

I’m still working on the LED calculator (original idea and most recent work) — I’ve finally got ’round to adding a rotary encoder to set the target system voltage. Now you can turn the potentiometer to set the LED brightness, turn the rotary encoder to set what voltage will be used in the ultimate LED circuit, and read the LED voltage, current, and current-limiting resistor values off the screen. I also fou ...

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Geiger Counter with Touch Interface!

There are quite a few geiger counter instructables. The difference with this one is that I wanted to give it a modern interface, similar to smart phone touch screens, that anyone would feel comfortable using. The reason for this is that I want to use it as an educational tool to teach kids (and interested adults!) about radiation and how it is a natural part of the environment. Check out the video to see wh ...

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Webster: A Geometric Pattern Weaving Machine

We are three students from California College of the Arts in San Francisco in the Architecture program.  This studio is called Creative Architecture Machines and is taught by Jason Johnson and Michael Shiloh.  Webster is a geometric pattern weaving machine that takes inspiration from Islamic tiling, geodesic dome construction, weaving machines, and conventional 3D printers.  This 3-axis robot was an explora ...

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Arduino-based event counter

I teach Modern Physics here at CSUC, and we occasionally use isotopes with half-lives of a year or less (such as Zinc-65 and Cadmium-109) for energy-calibration sources for a gamma-spectroscopy lab. I thought it might be fun to try measuring the activity of one of these sources over time and thus get a looooong-scale half-life data-set for students to play around with. Or maybe watch background nuclear coun ...

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How To Interface a CDV 700 Geiger Counter to a PC Using an Arduino Video instrucitons

How To Interface a CDV 700 Geiger Counter to a PC Using an Arduino (Part 1) The second part of our video series of our project to interface to a CDV-700 radiation meter using an Arduino Uno! How To Interface a CDV 700 Geiger Counter to a PC Using an Arduino (Part 2) Code: A video on our project to interface to a CDV-700 radiation meter using an Arduino Uno! Here is the code mentioned in the video: int count ...

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Second degree equation solver with Arduino

This instuctable is about making sort of a calculator that enables the user by using an analog 12-digit keyboard and 4 buttons to input the a,b,c variables into a equation and get the solution for it if there is any.(well if u don't know what an second grade equation is probably u haven't been in high school, even though you can follow this post to learn about microcontrollers.) It can be a great electronic ...

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Star Jar Geiger counter triggered LED decoration using Arduino

This instructable builds on top of the Geiger counter triggered LED decorations I made last year. This version powers the Geiger counter from the Arduino (itself now powered from a mains adaptor, so I no longer need to keep feeding them batteries) and the LEDs now fade in and out for a more gentle effect. What you'll need: A Geiger counter with pulse output (I'm using the Gieger counter from MightyOhm) A fe ...

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Physical Computing with Arduino

Digital pins 1-7 are generally used as input pins and Digital pins 8-13 are used as output pins. Digital pins 9-11 can be used as analog output pins. That is, they can send they can send signal of variable voltage. 5/15/2012 Getting started with Arduino. I have skimmed through the "Getting Started with Arduino" and did the two main projects. The first project was about testing basic components/sensors (ligh ...

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