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tests: added test app for the bh1750fvi driver

pr/gpio
Hauke Petersen 7 years ago
parent
commit
49dd104fd6
  1. 7
      tests/driver_bh1750/Makefile
  2. 15
      tests/driver_bh1750/README.md
  3. 47
      tests/driver_bh1750/main.c

7
tests/driver_bh1750/Makefile

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APPLICATION = driver_pir
include ../Makefile.tests_common
USEMODULE += xtimer
USEMODULE += bh1750fvi
include $(RIOTBASE)/Makefile.include

15
tests/driver_bh1750/README.md

@ -0,0 +1,15 @@
# About
This test application is created for testing/demonstrating the BH1750FVI driver.
It uses the default device parameters as specified in
`drivers/bh1750fvi/include/bh1750fvi_params.h`. To override these setting, you
can simply do this by defining these parameters as compiler flags while uilding,
e.g.:
```
$ CFLAGS="-DBH1750FVI_PARAM_I2C=I2C_DEV(1)"" make all
```
# Usage
Simply flash this example to your board and it will read the sensor value 5
times per second and print the sampled value to STDIO. You can verify the values
by simply covering the sensor or holding it in front of a bright light and see
the change in the sensor readings accordingly.

47
tests/driver_bh1750/main.c

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/*
* Copyright (C) 2016 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Test application for the BH1750FVI ambient light sensor driver
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
#include "xtimer.h"
#include "bh1750fvi.h"
#include "bh1750fvi_params.h"
#define RATE (200 * MS_IN_USEC) /* 200ms */
int main(void)
{
bh1750fvi_t dev;
uint32_t last = xtimer_now();
puts("BH1750FVI ambient light sensor test\n");
/* initialize the device */
bh1750fvi_init(&dev, (bh1750fvi_params_t *)(&bh1750fvi_params));
/* periodically sample the sensor */
while(1) {
uint16_t val = bh1750fvi_sample(&dev);
printf("value: %5i lux\n", (int)val);
xtimer_usleep_until(&last, RATE);
}
return 0;
}
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