25 lines
765 B
JavaScript
Executable File
25 lines
765 B
JavaScript
Executable File
#!/usr/bin/env node
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let util = require('./util');
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let LED_PWM_COMMAND_ID = 10;
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let [endpointIn, endpointOut] = util.getUsbEndpoints();
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let brightnessPercent = 0;
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setInterval(() => {
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brightnessPercent = brightnessPercent ? 0 : 100
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console.log('Sending ', brightnessPercent);
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endpointOut.transfer(new Buffer([LED_PWM_COMMAND_ID, brightnessPercent]), err => {
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if (err) {
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console.error("USB error: %s", err);
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process.exit(1);
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}
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endpointIn.transfer(64, (err2, receivedBuffer) => {
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if (err2) {
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console.error("USB error: %s", err2);
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process.exit(2);
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}
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console.log('Received', util.bufferToString(receivedBuffer));
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})
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});
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}, 500);
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