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MissileLauncher.h
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<h1>RaspberryPi Zero W with BCM2835</h1>
<figure>
<img src='node_rpio.png'>
<figcaption>Ring oscillator with node-rpio.</figcaption>
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<p>This ring oscillator uses the <a href='https://github.com/jperkin/node-rpio'>node rpio</a> from Jonathan Perkin. The code is available <a href='ring.js'>here</a>, or visible below.</p>
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<code>
var rpio = require('rpio');
rpio.open(3, rpio.OUTPUT);
rpio.open(5, rpio.INPUT);
while(1){rpio.write(3, 1-rpio.read(5) ); }
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