Skip to content

Instantly share code, notes, and snippets.

@mikaelleven

mikaelleven/spi_loopback.js

Created December 10, 2015 20:14
Show Gist options
  • Save mikaelleven/75b0deb1ac0be4c8a3f8 to your computer and use it in GitHub Desktop.
Save mikaelleven/75b0deb1ac0be4c8a3f8 to your computer and use it in GitHub Desktop.
Download ZIP
NodeJS loopback example for troubleshooting SPI communication on Raspberry Pi GPIO
Raw
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' : ' '));
};
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment