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64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2016 Intel Corporation.
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*
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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <unistd.h>
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#include <signal.h>
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#include "bh1750.h"
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#include "upm_utilities.h"
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bool shouldRun = true;
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void sig_handler(int signo)
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{
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if (signo == SIGINT)
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shouldRun = false;
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}
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int main()
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate a BH1750 sensor on default I2C bus (0), using the
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// default I2C address (0x23), and setting the mode to highest
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// resolution, lowest power mode.
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bh1750_context sensor = bh1750_init(BH1750_DEFAULT_I2C_BUS,
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BH1750_DEFAULT_I2C_ADDR,
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BH1750_OPMODE_H2_ONCE);
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if (!sensor)
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{
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printf("bh1750_init() failed.\n");
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return 1;
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}
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// Every second, sample the BH1750 and output the measured lux value
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while (shouldRun)
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{
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float lux;
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bh1750_get_lux(sensor, &lux);
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printf("Detected Light Level (lux): %f\n", lux);
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upm_delay(1);
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}
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//! [Interesting]
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printf("Exiting\n");
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bh1750_close(sensor);
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return 0;
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}
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