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170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
39 lines
908 B
JavaScript
39 lines
908 B
JavaScript
#!/usr/bin/env node
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/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* SPDX-License-Identifier: MIT
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*/
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"use strict";
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const mraa = require('mraa'); //require mraa
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let i2cDevice = new mraa.I2c(0);
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i2cDevice.address(0x77);
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// initialise device
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if (i2cDevice.readReg(0xd0) != 0x55) {
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console.log("error");
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}
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// we want to read temperature so write 0x2e into control reg
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i2cDevice.writeReg(0xf4, 0x2e);
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// read a 16bit reg, obviously it's uncalibrated so mostly a useless value :)
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console.log(i2cDevice.readWordReg(0xf6));
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// and we can do the same thing with the read()/write() calls if we wished
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// thought I'd really not recommend it!
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let buf = new Buffer(2);
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buf[0] = 0xf4;
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buf[1] = 0x2e;
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console.log(buf.toString('hex'));
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i2cDevice.write(buf);
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i2cDevice.writeByte(0xf6);
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let result = i2cDevice.read(2);
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console.log(result.toString('hex'));
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