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@mikaelleven /spi_loopback.js
Created Dec 10, 2015

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NodeJS loopback example for troubleshooting SPI communication on Raspberry Pi GPIO
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spi_loopback.js
var rpio = require('rpio');
var rxBuffer = rpio.spiTransfer(new Buffer('HELLOSPI'), 8);
for (var i = 0; i <= 7; i++) {
process.stdout.write(String.fromCharCode(rxBuffer[i]) + (i == 7 ? '\n' : ' '));
};
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