Calculator Projects

DinoCalc Version 1.0

DinoCalc Version 1.0

(Arduino Pro Mini Protoboard Version) Latest Release:  http://code.google.com/p/dinocalc/ Development:      https://github.com/WeaselJones/DinoCalc This is a calculator without a LCD that tells you if your math answer is right or wrong, without giving you the answer.  This instructable will show you how to make this simple math checking calculator using “off-the-shelf” items. [UPDATE:  A TUTORIAL SHOWING HOW TO

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Pinewood Derby Car Scale With Center of Gravity CG Calculation

Pinewood Derby Car Scale With Center-of-Gravity (CG) Calculation

A key factor when building a pinewood derby car is its weight. The Boy Scouts of America and other organizations specify a weight of no more than 5 ounces. To improve performance many builders will add as much weight (mass) as possible up to that maximum allowable weight limit. What is often overlooked is the

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Plan the hardware

Multiplexing 7 Segment displays with Arduino and Shift Registers

In this instructable, I will be teaching the basics of multiplexing 7 segment displays using an Arduino and a couple of shift registers. This project is well suited for displaying numerical information or if you want to control a bunch of LEDs. For beginners, like me, I had no clue on how to tackle this project.

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Scintillino

Scintillino – an Arduino-based quick&dirty scintillation counter

Have you ever wondered about the radiation levels around you? Well today you can build your very own detector that measures ionizing radiation and displays data in real-time on an LCD (and also your computer if you want). The visual design, as seen below, is perhaps a tad short of a Red Dot Award, but

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Timing Belt Calculator

Arduino Timing Belt Calculator (console)

This command-line Python script is a utility to help calculate parameters for timing belt drive systems. A more general discussion of designing with timing belts can be found on the Timing Belt Guide pages. Installation Requirements The code requires a working installation of Python 3 with scipy. For suggestions on setting up your system please see Python 3 Installation.

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