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tests/driver_isl29125: initial import

dev/timer
Ludwig Ortmann 8 years ago
parent
commit
fb6c75f6d8
  1. 22
      tests/driver_isl29125/Makefile
  2. 12
      tests/driver_isl29125/README.md
  3. 86
      tests/driver_isl29125/main.c

22
tests/driver_isl29125/Makefile

@ -0,0 +1,22 @@
APPLICATION = driver_isl29125
include ../Makefile.tests_common
FEATURES_REQUIRED = periph_i2c
USEMODULE += isl29125
USEMODULE += vtimer
ifneq (,$(TEST_ISL29125_I2C))
CFLAGS += -DTEST_ISL29125_I2C=$(TEST_ISL29125_I2C)
else
# set random default
CFLAGS += -DTEST_ISL29125_I2C=I2C_0
endif
ifneq (,$(TEST_ISL29125_IRQ_PIN))
CFLAGS += -DTEST_ISL29125_IRQ_PIN=$(TEST_ISL29125_IRQ_PIN)
else
# set random default
CFLAGS += -DTEST_ISL29125_IRQ_PIN=GPIO_5
endif
include $(RIOTBASE)/Makefile.include

12
tests/driver_isl29125/README.md

@ -0,0 +1,12 @@
# About
This is a manual test application for the ISL29125 light sensor driver.
# Usage
This test application will initialize the list sensor with the following parameters:
- Mode: All modes are tested once, then RGB mode is used continuously
- Range: 16000 lux
- Resolution: 16 bit
After initialization, the sensor value is read every 250ms and printed to the stdout.
Expose the sensor to varying light sources to see changing readouts.

86
tests/driver_isl29125/main.c

@ -0,0 +1,86 @@
/*
* Copyright 2015 Ludwig Ortmann
*
* 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 ISL29125 RGB light sensor
*
* @author Ludwig Ortmann <ludwig.ortmann@fu-berlin.de>
*
* @}
*/
#ifndef TEST_ISL29125_I2C
#error "TEST_ISL29125_I2C not defined"
#endif
#ifndef TEST_ISL29125_IRQ_PIN
#error "ISL29125_IRQ_PIN not defined"
#endif
#include <stdio.h>
#include <string.h>
#include "vtimer.h"
#include "isl29125.h"
#define SLEEP (250 * 1000U)
int main(void)
{
isl29125_t dev;
isl29125_rgb_t data;
color_rgb_t data8bit;
memset(&data, 0x00, sizeof(data));
puts("ISL29125 light sensor test application\n");
printf("Initializing ISL29125 sensor at I2C_%i... ", TEST_ISL29125_I2C);
if (isl29125_init(&dev, TEST_ISL29125_I2C, TEST_ISL29125_IRQ_PIN,
ISL29125_MODE_RGB, ISL29125_RANGE_10K,
ISL29125_RESOLUTION_16) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
/* try out some modes */
static const isl29125_mode_t modes[] = {
ISL29125_MODE_DOWN, ISL29125_MODE_STANDBY, ISL29125_MODE_RGB,
ISL29125_MODE_R, ISL29125_MODE_G, ISL29125_MODE_B,
ISL29125_MODE_RG, ISL29125_MODE_GB};
static const char* mode_names[] = {
"ISL29125_MODE_DOWN", "ISL29125_MODE_STANDBY", "ISL29125_MODE_RGB",
"ISL29125_MODE_R", "ISL29125_MODE_G", "ISL29125_MODE_B",
"ISL29125_MODE_RG", "ISL29125_MODE_GB"};
for (int i = 0; i < sizeof(modes); i++) {
printf("Setting mode %s\n", mode_names[i]);
isl29125_set_mode(&dev, modes[i]);
vtimer_usleep(SLEEP);
isl29125_read_rgb_color(&dev, &data8bit);
printf("RGB value: (%3i / %3i / %3i) 8 bit\n",
data8bit.r, data8bit.g, data8bit.b);
}
puts("Resetting mode to RGB and reading continuously");
isl29125_set_mode(&dev, ISL29125_MODE_RGB);
vtimer_usleep(SLEEP);
while (1) {
isl29125_read_rgb_lux(&dev, &data);
printf("RGB value: (%5i / %5i / %5i) lux\n",
(int)data.red, (int)data.green, (int)data.blue);
vtimer_usleep(SLEEP);
}
return 0;
}
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