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b608232cb9
Multiple changes related to building the vdiv c source w/c example.
* Renamed GroveVdiv to vdiv (all cases) throughout source, examples,
directory names, and documentation.
* Added C source.
* Tested C sensor code on edison
* Updated CMakeLists.txt for examples-c to build from
<sensorname>-c. This was a small change to get c examples to build
for sensors in which the C++ does NOT wrap the C.
* Added C example for vdiv.
Signed-off-by: Noel Eck <noel.eck@intel.com>
75 lines
2.0 KiB
C
75 lines
2.0 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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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <unistd.h>
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#include <signal.h>
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#include "vdiv.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 sensor on analog pin A0
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vdiv_context sensor = vdiv_init(0, 5);
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if (!sensor)
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{
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printf("vdiv_init() failed.\n");
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return(1);
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}
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// Every half a second, sample the sensor output
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while (shouldRun)
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{
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float raw_volts = 0.0, computed_volts = 0.0;
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vdiv_get_raw_volts(sensor, &raw_volts);
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vdiv_get_computed_volts(sensor, &computed_volts);
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printf("Divide SW: %d ADC voltage: %0.03f Sensor voltage: %0.03f\n",
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vdiv_get_divsw(sensor), raw_volts, computed_volts);
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usleep(500000);
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}
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//! [Interesting]
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printf("Exiting\n");
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vdiv_close(sensor);
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return 0;
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}
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