Ideas

Arduino Controlled Physics Lab Fan Cart

Arduino-Controlled Physics Lab Fan-Cart

A “fan cart” is a roughly constant-force device used in introductory physics labs. It consists of a fan (usually a model airplane propeller on a brushed DC motor) mounted on top of a low-friction cart. Students use it to pretend they’re learning something about force, acceleration, energy, etc. If you’ve ever taken an introductory physics

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Arduino datalogging accelerometer with µ SD storage

Arduino datalogging accelerometer with µ-SD storage

Thanks to Will Greiman’s Fat16 library for the Arduino, I finally got a useful version of this datalogger working! Here’s the schematic: And here’s the code. The code is highly configurable: it can save raw A/D values or converted values, it allows software-defined gain, it can collect for a set time or until user input,

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Arduino testing Sharp IR

Arduino – Using a Sharp IR Sensor for Distance Calculation

Well, looks like my sonar sensor (SRF05) is a just a tad inaccurate for precise measurement as I found from my radar screen I made (Arduino Radar Sscreen). So I’ve got hold of a Sharp GP2Y0A02 series infrared distance sensor. It’ll detect and measure anything within a 20-150cm range and it does this by triangulation

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