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examples: Cleaned up C examples.

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This commit cleans up multiple items with the UPM C example source.

    * Switch from usleep and sleep to upm_delay* methods
    * Include a mraa_init and check return value prior to using sensor
    * All example mains now return
    * Added include for mraa.h and upm_utilites.h to all examples
    * Reformatted/removed tabs
    * Updated author line for the examples I wrote

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck 2016-09-19 15:45:22 -07:00
parent 2ccdc3e673
commit 324af8fc92
35 changed files with 775 additions and 482 deletions
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29
examples/c/a110x.c
View File

@ -7,17 +7,26 @@
#include <unistd.h>
#include "a110x.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
a110x_context dev = a110x_init(2);
bool abc = 0;
while(1){
if(a110x_magnet_detected(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
upm_delay(1);
printf("value retrieved: %d\n", abc);
}
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
a110x_context dev = a110x_init(2);
bool abc = 0;
while(1){
if(a110x_magnet_detected(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
upm_delay(1);
printf("value retrieved: %d\n", abc);
}
return 0;
}

58
examples/c/bh1750.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "bh1750.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,39 +39,45 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a BH1750 sensor on default I2C bus (0), using the
// default I2C address (0x23), and setting the mode to highest
// resolution, lowest power mode.
bh1750_context sensor = bh1750_init(BH1750_DEFAULT_I2C_BUS,
BH1750_DEFAULT_I2C_ADDR,
BH1750_OPMODE_H2_ONCE);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("bh1750_init() failed.\n");
return 1;
perror("Failed to initialize mraa\n");
return -1;
}
// Every second, sample the BH1750 and output the measured lux value
signal(SIGINT, sig_handler);
while (shouldRun)
//! [Interesting]
// Instantiate a BH1750 sensor on default I2C bus (0), using the
// default I2C address (0x23), and setting the mode to highest
// resolution, lowest power mode.
bh1750_context sensor = bh1750_init(BH1750_DEFAULT_I2C_BUS,
BH1750_DEFAULT_I2C_ADDR,
BH1750_OPMODE_H2_ONCE);
if (!sensor)
{
float lux;
bh1750_get_lux(sensor, &lux);
printf("Detected Light Level (lux): %f\n", lux);
sleep(1);
printf("bh1750_init() failed.\n");
return 1;
}
//! [Interesting]
// Every second, sample the BH1750 and output the measured lux value
printf("Exiting\n");
while (shouldRun)
{
float lux;
bh1750_close(sensor);
bh1750_get_lux(sensor, &lux);
printf("Detected Light Level (lux): %f\n", lux);
upm_delay(1);
}
return 0;
//! [Interesting]
printf("Exiting\n");
bh1750_close(sensor);
return 0;
}

29
examples/c/collision.c
View File

@ -7,16 +7,25 @@
#include <unistd.h>
#include "collision.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
collision_context dev = collision_init(2);
bool abc = 0;
while(1){
if(collision_is_colliding(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
upm_delay(1);
printf("value retrieved: %d\n", abc);
}
collision_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
collision_context dev = collision_init(2);
bool abc = 0;
while(1){
if(collision_is_colliding(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
upm_delay(1);
printf("value retrieved: %d\n", abc);
}
collision_close(dev);
}

62
examples/c/dfrec.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "dfrec.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,40 +39,46 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a DFRobot EC sensor on analog pin A0, with a ds18b20
// temperature sensor connected to UART 0, and a device index (for
// the ds1820b uart bus) of 0, and an analog reference voltage of
// 5.0.
dfrec_context sensor = dfrec_init(0, 0, 0, 5.0);
if (!sensor)
{
printf("dfrec_init() failed.\n");
return(1);
if (mraa_init() != MRAA_SUCCESS)
perror("Failed to initialize mraa\n");
return -1;
}
// Every 2 seconds, update and print values
while (shouldRun)
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a DFRobot EC sensor on analog pin A0, with a ds18b20
// temperature sensor connected to UART 0, and a device index (for
// the ds1820b uart bus) of 0, and an analog reference voltage of
// 5.0.
dfrec_context sensor = dfrec_init(0, 0, 0, 5.0);
if (!sensor)
{
dfrec_update(sensor);
printf("EC = %f ms/cm\n", dfrec_get_ec(sensor));
printf("Volts = %f, Temperature = %f C\n",
dfrec_get_volts(sensor), dfrec_get_temperature(sensor));
printf("\n");
sleep(2);
printf("dfrec_init() failed.\n");
return(1);
}
//! [Interesting]
// Every 2 seconds, update and print values
while (shouldRun)
{
dfrec_update(sensor);
printf("Exiting...\n");
printf("EC = %f ms/cm\n", dfrec_get_ec(sensor));
printf("Volts = %f, Temperature = %f C\n",
dfrec_get_volts(sensor), dfrec_get_temperature(sensor));
printf("\n");
dfrec_close(sensor);
upm_delay(2);
}
return 0;
//! [Interesting]
printf("Exiting...\n");
dfrec_close(sensor);
return 0;
}

80
examples/c/dfrorp.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "dfrorp.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,50 +39,56 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a DFRobot ORP sensor on analog pin A0 with an analog
// reference voltage of 5.0.
dfrorp_context sensor = dfrorp_init(0, 5.0);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("dfrorp_init() failed.\n");
return(1);
perror("Failed to initialize mraa\n");
return -1;
}
// To calibrate:
//
// Disconnect the sensor probe (but leave the sensor interface board
// connected). Then run one of the examples while holding down the
// 'calibrate' button on the device. Read the ORP value reported
// (it should be fairly small).
//
// This value is what you should supply to
// dfrorp_set_orp_cal_offset(). Then reconnect the probe to the
// interface board and you should be ready to go.
//
// DO NOT press the calibrate button on the interface board while
// the probe is attached or you can permanently damage the probe.
dfrorp_set_calibration_offset(sensor, 0.97);
signal(SIGINT, sig_handler);
// Every second, update and print values
while (shouldRun)
//! [Interesting]
// Instantiate a DFRobot ORP sensor on analog pin A0 with an analog
// reference voltage of 5.0.
dfrorp_context sensor = dfrorp_init(0, 5.0);
if (!sensor)
{
dfrorp_update(sensor);
printf("ORP = %f mV\n", dfrorp_get_orp(sensor));
sleep(1);
printf("dfrorp_init() failed.\n");
return(1);
}
//! [Interesting]
// To calibrate:
//
// Disconnect the sensor probe (but leave the sensor interface board
// connected). Then run one of the examples while holding down the
// 'calibrate' button on the device. Read the ORP value reported
// (it should be fairly small).
//
// This value is what you should supply to
// dfrorp_set_orp_cal_offset(). Then reconnect the probe to the
// interface board and you should be ready to go.
//
// DO NOT press the calibrate button on the interface board while
// the probe is attached or you can permanently damage the probe.
dfrorp_set_calibration_offset(sensor, 0.97);
printf("Exiting...\n");
// Every second, update and print values
while (shouldRun)
{
dfrorp_update(sensor);
dfrorp_close(sensor);
printf("ORP = %f mV\n", dfrorp_get_orp(sensor));
return 0;
upm_delay(1);
}
//! [Interesting]
printf("Exiting...\n");
dfrorp_close(sensor);
return 0;
}

12
examples/c/dfrph.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "dfrph.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -61,7 +69,7 @@ int main()
printf("Detected volts: %0.03f\n", volts);
printf("pH value: %0.03f\n", pH);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

62
examples/c/ds18b20.c
View File

@ -27,6 +27,8 @@
#include <signal.h>
#include "ds18b20.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -38,44 +40,50 @@ void sig_handler(int signo)
int main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
printf("Initializing...\n");
// Instantiate an DS18B20 instance using the uart 0
ds18b20_context sensor = ds18b20_init(0);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("ds18b20_init() failed.\n");
return(1);
perror("Failed to initialize mraa\n");
return -1;
}
printf("Found %d device(s)\n\n", ds18b20_devices_found(sensor));
signal(SIGINT, sig_handler);
// update and print available values every second
while (shouldRun)
//! [Interesting]
printf("Initializing...\n");
// Instantiate an DS18B20 instance using the uart 0
ds18b20_context sensor = ds18b20_init(0);
if (!sensor)
{
// update our values for all sensors
ds18b20_update(sensor, -1);
printf("ds18b20_init() failed.\n");
return(1);
}
int i;
for (i=0; i<ds18b20_devices_found(sensor); i++)
printf("Found %d device(s)\n\n", ds18b20_devices_found(sensor));
// update and print available values every second
while (shouldRun)
{
// update our values for all sensors
ds18b20_update(sensor, -1);
int i;
for (i=0; i<ds18b20_devices_found(sensor); i++)
{
printf("Device %02d: Temperature: %f C\n",
i, ds18b20_get_temperature(sensor, i));
printf("Device %02d: Temperature: %f C\n",
i, ds18b20_get_temperature(sensor, i));
}
printf("\n");
printf("\n");
sleep(2);
upm_delay(2);
}
printf("Exiting...\n");
printf("Exiting...\n");
ds18b20_close(sensor);
//! [Interesting]
ds18b20_close(sensor);
//! [Interesting]
return 0;
return 0;
}

12
examples/c/emg.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "emg.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +81,7 @@ int main()
printf("Normalized output: %0.03f, raw emg sensor output: %0.03f v "
"adjusted output: %0.03f v\n", normalized, raw_volts, volts);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

12
examples/c/flex.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "flex.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +81,7 @@ int main()
printf("Normalized output: %0.03f, raw flex sensor output: %0.03f v "
"adjusted output: %0.03f v\n", normalized, raw_volts, volts);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

31
examples/c/gp2y0a.c
View File

@ -7,19 +7,28 @@
#include <unistd.h>
#include "gp2y0a.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
gp2y0a_context dev = gp2y0a_init(14, 5.0);
float val;
while(1){
if(gp2y0a_get_value(dev, 5.0, 20, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Moisture Value: %f\n", val);
upm_delay(1);
}
gp2y0a_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
gp2y0a_context dev = gp2y0a_init(14, 5.0);
float val;
while(1){
if(gp2y0a_get_value(dev, 5.0, 20, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Moisture Value: %f\n", val);
upm_delay(1);
}
gp2y0a_close(dev);
return 0;
}

31
examples/c/grovemoisture.c
View File

@ -7,19 +7,28 @@
#include <unistd.h>
#include "grovemoisture.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
grovemoisture_context dev = grovemoisture_init(14);
int val;
while(1){
if(grovemoisture_get_moisture(dev, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Moisture Value: %d\n", val);
upm_delay(1);
}
grovemoisture_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
grovemoisture_context dev = grovemoisture_init(14);
int val;
while(1){
if(grovemoisture_get_moisture(dev, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Moisture Value: %d\n", val);
upm_delay(1);
}
grovemoisture_close(dev);
return 0;
}

12
examples/c/gsr.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "gsr.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +81,7 @@ int main()
printf("Normalized output: %0.03f, raw gsr sensor output: %0.03f v "
"adjusted output: %0.03f v\n", normalized, raw_volts, volts);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

58
examples/c/hka5.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "hka5.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,42 +39,48 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a HKA5 sensor on uart 0. We don't use the set or
// reset pins, so we pass -1 for them.
hka5_context sensor = hka5_init(0, -1, -1);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("hka5_init() failed.\n");
return 1;
perror("Failed to initialize mraa\n");
return -1;
}
// update once every 2 seconds and output data
while (shouldRun)
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a HKA5 sensor on uart 0. We don't use the set or
// reset pins, so we pass -1 for them.
hka5_context sensor = hka5_init(0, -1, -1);
if (!sensor)
{
if (hka5_update(sensor) != UPM_SUCCESS)
printf("hka5_init() failed.\n");
return 1;
}
// update once every 2 seconds and output data
while (shouldRun)
{
if (hka5_update(sensor) != UPM_SUCCESS)
{
printf("hka5_update() failed, exiting.\n");
shouldRun = false;
printf("hka5_update() failed, exiting.\n");
shouldRun = false;
}
printf("PM 1 : %d ug/m3\n", hka5_get_pm1(sensor));
printf("PM 2.5: %d ug/m3\n", hka5_get_pm2_5(sensor));
printf("PM 10 : %d ug/m3\n", hka5_get_pm10(sensor));
printf("\n");
printf("PM 1 : %d ug/m3\n", hka5_get_pm1(sensor));
printf("PM 2.5: %d ug/m3\n", hka5_get_pm2_5(sensor));
printf("PM 10 : %d ug/m3\n", hka5_get_pm10(sensor));
printf("\n");
sleep(2);
upm_delay(2);
}
//! [Interesting]
//! [Interesting]
printf("Exiting\n");
printf("Exiting\n");
hka5_close(sensor);
hka5_close(sensor);
return 0;
return 0;
}

13
examples/c/joystick12.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,9 @@
#include <signal.h>
#include "joystick12.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +40,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +82,7 @@ int main()
joystick12_get_value_y(sensor, &y);
printf("X: %5.02f Y: %5.02f\n", x, y);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

12
examples/c/ldt0028.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "ldt0028.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -82,7 +90,7 @@ int main()
"adjusted output: %0.03f v\n\n", normalized, raw_volts, volts);
}
usleep(50000);
upm_delay_ms(500);
}
//! [Interesting]

36
examples/c/led.c
View File

@ -7,18 +7,28 @@
#include <unistd.h>
#include "led.h"
void main(void)
#include "upm_utilities.h"
#include "mraa.h"
int main(void)
{
led_context dev = led_init(2);
while(1){
if(led_on(dev) != UPM_SUCCESS){
printf("problem turning the LED on\n");
}
upm_delay(1);
if(led_off(dev) != UPM_SUCCESS){
printf("problem turning the LED off\n");
}
upm_delay(1);
}
led_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
led_context dev = led_init(2);
while(1){
if(led_on(dev) != UPM_SUCCESS){
printf("problem turning the LED on\n");
}
upm_delay(1);
if(led_off(dev) != UPM_SUCCESS){
printf("problem turning the LED off\n");
}
upm_delay(1);
}
led_close(dev);
return 0;
}

12
examples/c/light.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "light.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +81,7 @@ int main()
printf("Normalized output: %0.03f, raw light sensor output: %0.03f v "
"light output: %0.03f lux\n", normalized, raw_volts, lux);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

31
examples/c/loudness.c
View File

@ -7,19 +7,28 @@
#include <unistd.h>
#include "loudness.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
loudness_context dev = loudness_init(14);
int val;
while(1){
if(loudness_get_value(dev, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Loudness Value: %d\n", val);
upm_delay(1);
}
loudness_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
loudness_context dev = loudness_init(14);
int val;
while(1){
if(loudness_get_value(dev, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Loudness Value: %d\n", val);
upm_delay(1);
}
loudness_close(dev);
return 0;
}

45
examples/c/m24lr64e.c
View File

@ -5,25 +5,34 @@
#include <unistd.h>
#include "m24lr64e.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
m24lr64e_context dev = m24lr64e_init(0, M24LR64E_USER_MODE);
int addr = M24LR64E_EEPROM_I2C_LENGTH-1;
printf("address being accessed: %d\n", addr);
uint8_t byte;
if(m24lr64e_read_byte(dev, addr, &byte) != UPM_SUCCESS)
printf("error while reading value\n");
printf("value read from the device: %d\n", byte);
byte = ~byte;
printf("byte to be written: %d\n", byte);
if(m24lr64e_write_byte(dev, addr, byte) != UPM_SUCCESS)
printf("error while writing byte to the device\n");
uint8_t var;
if(m24lr64e_read_byte(dev, addr, &var) != UPM_SUCCESS)
printf("error while reading value back\n");
printf("new value at %d: %d\n", addr, var);
m24lr64e_close(dev);
printf("all done!!\n");
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
m24lr64e_context dev = m24lr64e_init(0, M24LR64E_USER_MODE);
int addr = M24LR64E_EEPROM_I2C_LENGTH-1;
printf("address being accessed: %d\n", addr);
uint8_t byte;
if(m24lr64e_read_byte(dev, addr, &byte) != UPM_SUCCESS)
printf("error while reading value\n");
printf("value read from the device: %d\n", byte);
byte = ~byte;
printf("byte to be written: %d\n", byte);
if(m24lr64e_write_byte(dev, addr, byte) != UPM_SUCCESS)
printf("error while writing byte to the device\n");
uint8_t var;
if(m24lr64e_read_byte(dev, addr, &var) != UPM_SUCCESS)
printf("error while reading value back\n");
printf("new value at %d: %d\n", addr, var);
m24lr64e_close(dev);
printf("all done!!\n");
return 0;
}

76
examples/c/mma7361.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "mma7361.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,49 +39,55 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a MMA7361 sensor on analog pins A0 (X), A1 (Y) A2
// (Z), selftest pin on D2, sleep pin on D3 nd an analog reference
// value of 5.0. The freefall pin and the range pin are unused
// (-1).
mma7361_context sensor = mma7361_init(0, 1, 2, 2, 3, -1, -1, 5.0);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("mma7361_init() failed.\n");
return(1);
perror("Failed to initialize mraa\n");
return -1;
}
// 1.5g (true = 6g)
mma7361_set_range(sensor, false);
signal(SIGINT, sig_handler);
// Every 10th of a second, update and print values
//! [Interesting]
while (shouldRun)
// Instantiate a MMA7361 sensor on analog pins A0 (X), A1 (Y) A2
// (Z), selftest pin on D2, sleep pin on D3 nd an analog reference
// value of 5.0. The freefall pin and the range pin are unused
// (-1).
mma7361_context sensor = mma7361_init(0, 1, 2, 2, 3, -1, -1, 5.0);
if (!sensor)
{
mma7361_update(sensor);
float x, y, z;
mma7361_get_acceleration(sensor, &x, &y, &z);
printf("Acceleration x = %f y = %f z = %f\n",
x, y, z);
mma7361_get_volts(sensor, &x, &y, &z);
printf("Volts x = %f y = %f z = %f\n\n",
x, y, z);
usleep(100000);
printf("mma7361_init() failed.\n");
return(1);
}
//! [Interesting]
// 1.5g (true = 6g)
mma7361_set_range(sensor, false);
printf("Exiting...\n");
// Every 10th of a second, update and print values
mma7361_close(sensor);
while (shouldRun)
{
mma7361_update(sensor);
return 0;
float x, y, z;
mma7361_get_acceleration(sensor, &x, &y, &z);
printf("Acceleration x = %f y = %f z = %f\n",
x, y, z);
mma7361_get_volts(sensor, &x, &y, &z);
printf("Volts x = %f y = %f z = %f\n\n",
x, y, z);
upm_delay_ms(500);
}
//! [Interesting]
printf("Exiting...\n");
mma7361_close(sensor);
return 0;
}

32
examples/c/moisture.c
View File

@ -7,19 +7,27 @@
#include <unistd.h>
#include "moisture.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
moisture_context dev = moisture_init(14);
int val;
while(1){
if(moisture_get_moisture(dev, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Moisture Value: %d\n", val);
upm_delay(1);
}
moisture_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
moisture_context dev = moisture_init(14);
int val;
while(1){
if(moisture_get_moisture(dev, &val) != UPM_SUCCESS){
printf("Failed to get any values from the sensor\n");
}
printf("Moisture Value: %d\n", val);
upm_delay(1);
}
moisture_close(dev);
return 0;
}

39
examples/c/mpr121.c
View File

@ -7,24 +7,33 @@
#include <unistd.h>
#include "mpr121.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
mpr121_context dev = mpr121_init(MPR121_I2C_BUS, MPR121_DEFAULT_I2C_ADDR);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
if(mpr121_config_an3944(dev) != UPM_SUCCESS){
printf("unable to configure device\n");
}
uint32_t states;
while(1){
if(mpr121_read_buttons(dev, &states, 0) != UPM_SUCCESS){
printf("Error while reading button values\n");
}
printf("retrieved button states: %d\n", states);
upm_delay(1);
}
mpr121_context dev = mpr121_init(MPR121_I2C_BUS, MPR121_DEFAULT_I2C_ADDR);
mpr121_close(dev);
printf("all done!!\n");
if(mpr121_config_an3944(dev) != UPM_SUCCESS){
printf("unable to configure device\n");
}
uint32_t states;
while(1){
if(mpr121_read_buttons(dev, &states, 0) != UPM_SUCCESS){
printf("Error while reading button values\n");
}
printf("retrieved button states: %d\n", states);
upm_delay(1);
}
return 0;
mpr121_close(dev);
printf("all done!!\n");
return 0;
}

34
examples/c/mq303a.c
View File

@ -7,20 +7,28 @@
#include <unistd.h>
#include "mq303a.h"
#include "upm_utilities.h"
#include "mraa.h"
int main() {
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
/* --------- MQ303A EXAMPLE -------- */
mq303a_context dev = mq303a_init(0, 15);
printf("init done for mq303a\n");
int value;
mq303a_heater_enable(dev, true);
upm_delay(12);
while(1){
mq303a_get_value(dev, &value);
printf("returned value: %d\n", value);
upm_delay(1);
}
return 0;
/* --------- MQ303A EXAMPLE -------- */
mq303a_context dev = mq303a_init(0, 15);
printf("init done for mq303a\n");
int value;
mq303a_heater_enable(dev, true);
upm_delay(12);
while(1){
mq303a_get_value(dev, &value);
printf("returned value: %d\n", value);
upm_delay(1);
}
return 0;
}

12
examples/c/mqx.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "mqx.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +81,7 @@ int main()
printf("Normalized output: %0.03f, raw mqx sensor output: %0.03f v "
"adjusted output: %0.03f v\n", normalized, raw_volts, volts);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

58
examples/c/nmea_gps.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "nmea_gps.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -39,42 +41,48 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a NMEA_GPS sensor on uart 0 at 9600 baud with enable
// pin on D3. If you do not need an enable pin, you can specify -1.
nmea_gps_context sensor = nmea_gps_init(0, 9600, 3);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("nmea_gps_init() failed.\n");
return 1;
perror("Failed to initialize mraa\n");
return -1;
}
char buffer[bufferLength];
int rv = 0;
signal(SIGINT, sig_handler);
// loop, dumping NMEA data out as fast as it comes in
while (shouldRun && nmea_gps_data_available(sensor, 5000))
//! [Interesting]
// Instantiate a NMEA_GPS sensor on uart 0 at 9600 baud with enable
// pin on D3. If you do not need an enable pin, you can specify -1.
nmea_gps_context sensor = nmea_gps_init(0, 9600, 3);
if (!sensor)
{
if ((rv = nmea_gps_read(sensor, buffer, bufferLength)) >= 0)
printf("nmea_gps_init() failed.\n");
return 1;
}
char buffer[bufferLength];
int rv = 0;
// loop, dumping NMEA data out as fast as it comes in
while (shouldRun && nmea_gps_data_available(sensor, 5000))
{
if ((rv = nmea_gps_read(sensor, buffer, bufferLength)) >= 0)
{
int i;
for (i=0; i<rv; i++)
printf("%c", buffer[i]);
int i;
for (i=0; i<rv; i++)
printf("%c", buffer[i]);
}
}
if (shouldRun)
printf("Timed out\n");
if (shouldRun)
printf("Timed out\n");
//! [Interesting]
//! [Interesting]
printf("Exiting\n");
printf("Exiting\n");
nmea_gps_close(sensor);
nmea_gps_close(sensor);
return 0;
return 0;
}

64
examples/c/nmea_gps_i2c.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "nmea_gps.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -33,50 +35,56 @@ const size_t bufferLength = 128;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
if (signo == SIGINT)
shouldRun = false;
}
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a NMEA_GPS UBLOX based i2c sensor on i2c bus 0 at
// address 0x42
nmea_gps_context sensor = nmea_gps_init_ublox_i2c(0, 0x42);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("nmea_gps_init_ublox_i2c() failed.\n");
return 1;
perror("Failed to initialize mraa\n");
return -1;
}
char buffer[bufferLength];
int rv = 0;
signal(SIGINT, sig_handler);
// loop, dumping NMEA data out as fast as it comes in
while (shouldRun)
//! [Interesting]
// Instantiate a NMEA_GPS UBLOX based i2c sensor on i2c bus 0 at
// address 0x42
nmea_gps_context sensor = nmea_gps_init_ublox_i2c(0, 0x42);
if (!sensor)
{
if (!nmea_gps_data_available(sensor, 0))
usleep(100);
else
printf("nmea_gps_init_ublox_i2c() failed.\n");
return 1;
}
char buffer[bufferLength];
int rv = 0;
// loop, dumping NMEA data out as fast as it comes in
while (shouldRun)
{
if (!nmea_gps_data_available(sensor, 0))
upm_delay_ms(500);
else
{
if ((rv = nmea_gps_read(sensor, buffer, bufferLength)) >= 0)
if ((rv = nmea_gps_read(sensor, buffer, bufferLength)) >= 0)
{
int i;
for (i=0; i<rv; i++)
printf("%c", buffer[i]);
int i;
for (i=0; i<rv; i++)
printf("%c", buffer[i]);
}
}
}
//! [Interesting]
//! [Interesting]
printf("Exiting\n");
printf("Exiting\n");
nmea_gps_close(sensor);
nmea_gps_close(sensor);
return 0;
return 0;
}

12
examples/c/o2.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "o2.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -62,7 +70,7 @@ int main()
printf("O2 raw volts: %0.03f v, o2: %0.03f %%\n",
raw_volts, o2_percent);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

45
examples/c/servo.c
View File

@ -7,29 +7,38 @@
#include <unistd.h>
#include "es08a.c"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
es08a_context dev = es08a_init(3, ES08A_MIN_PULSE_WIDTH, ES08A_MAX_PULSE_WIDTH);
if(dev == NULL){
printf("unable to initialize the servo context\n");
}
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
if(es08a_set_angle(dev, 90) != UPM_SUCCESS){
printf("unable to set angle to 90 degrees\n");
}
upm_delay(1);
es08a_context dev = es08a_init(3, ES08A_MIN_PULSE_WIDTH, ES08A_MAX_PULSE_WIDTH);
if(dev == NULL){
printf("unable to initialize the servo context\n");
}
if(es08a_set_angle(dev, 180) != UPM_SUCCESS){
printf("unable to set angle to 180 degrees\n");
}
upm_delay(1);
if(es08a_set_angle(dev, 90) != UPM_SUCCESS){
printf("unable to set angle to 90 degrees\n");
}
upm_delay(1);
if(es08a_set_angle(dev, 90) != UPM_SUCCESS){
printf("unable to set angle to 90 degrees\n");
}
upm_delay(1);
if(es08a_set_angle(dev, 180) != UPM_SUCCESS){
printf("unable to set angle to 180 degrees\n");
}
upm_delay(1);
es08a_halt(dev);
if(es08a_set_angle(dev, 90) != UPM_SUCCESS){
printf("unable to set angle to 90 degrees\n");
}
upm_delay(1);
return 0;
es08a_halt(dev);
return 0;
}

60
examples/c/sht1x.c
View File

@ -26,52 +26,60 @@
#include <signal.h>
#include "sht1x.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
if (signo == SIGINT)
shouldRun = false;
}
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a SHT1X sensor using D2 as the clock, and D3 as the
// data pin.
sht1x_context sensor = sht1x_init(2, 3);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("sht1x_init() failed.\n");
return 1;
perror("Failed to initialize mraa\n");
return -1;
}
// Every 2 seconds, update and print values
while (shouldRun)
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a SHT1X sensor using D2 as the clock, and D3 as the
// data pin.
sht1x_context sensor = sht1x_init(2, 3);
if (!sensor)
{
if (sht1x_update(sensor))
printf("sht1x_init() failed.\n");
return 1;
}
// Every 2 seconds, update and print values
while (shouldRun)
{
if (sht1x_update(sensor))
{
printf("sht1x_update() failed, exiting.\n");
break;
printf("sht1x_update() failed, exiting.\n");
break;
}
printf("Temperature: %f C\n", sht1x_get_temperature(sensor));
printf("Humidity: %f RH\n", sht1x_get_humidity(sensor));
printf("\n");
printf("Temperature: %f C\n", sht1x_get_temperature(sensor));
printf("Humidity: %f RH\n", sht1x_get_humidity(sensor));
printf("\n");
sleep(2);
upm_delay(2);
}
//! [Interesting]
//! [Interesting]
printf("Exiting\n");
printf("Exiting\n");
sht1x_close(sensor);
sht1x_close(sensor);
return 0;
return 0;
}

12
examples/c/slide.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "slide.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -73,7 +81,7 @@ int main()
printf("Normalized output: %0.03f, raw slide sensor output: %0.03f v "
"adjusted output: %0.03f v\n", normalized, raw_volts, volts);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]

23
examples/c/tsl2561.c
View File

@ -7,14 +7,23 @@
#include <unistd.h>
#include "tsl2561.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
tsl2561_context dev = tsl2561_init(0, TSL2561_Address, GAIN_0X, INTEGRATION_TIME1_101MS);
float abc = 0;
if(tsl2561_get_lux(dev, &abc) != UPM_SUCCESS){
printf("ERROR !! ERROR !! ERROR!!");
}
printf("value retrieved: %f\n", abc);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
tsl2561_context dev = tsl2561_init(0, TSL2561_Address, GAIN_0X, INTEGRATION_TIME1_101MS);
float abc = 0;
if(tsl2561_get_lux(dev, &abc) != UPM_SUCCESS){
printf("ERROR !! ERROR !! ERROR!!");
}
printf("value retrieved: %f\n", abc);
return 0;
}

29
examples/c/ttp223.c
View File

@ -7,17 +7,26 @@
#include <unistd.h>
#include "ttp223.h"
#include "upm_utilities.h"
#include "mraa.h"
int main()
{
ttp223_context dev = ttp223_init(2);
bool abc = 0;
while(1){
if(ttp223_is_pressed(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
upm_delay(1);
printf("value retrieved: %d\n", abc);
}
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
return 0;
ttp223_context dev = ttp223_init(2);
bool abc = 0;
while(1){
if(ttp223_is_pressed(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
upm_delay(1);
printf("value retrieved: %d\n", abc);
}
return 0;
}

58
examples/c/urm37-uart.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "urm37.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,39 +39,45 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a URM37 sensor on UART 0, with the reset pin on D2
urm37_context sensor = urm37_init(0, 2, 0, 0, 0, false);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("urm37_init() failed.\n");
return(1);
perror("Failed to initialize mraa\n");
return -1;
}
// Every half a second, sample the URM37 and output the measured
// distance in cm.
signal(SIGINT, sig_handler);
while (shouldRun)
//! [Interesting]
// Instantiate a URM37 sensor on UART 0, with the reset pin on D2
urm37_context sensor = urm37_init(0, 2, 0, 0, 0, false);
if (!sensor)
{
float distance, temperature;
urm37_get_distance(sensor, &distance, 0);
printf("Detected distance (cm): %f\n", distance);
urm37_get_temperature(sensor, &temperature);
printf("Temperature (C): %f\n\n", temperature);
usleep(500000);
printf("urm37_init() failed.\n");
return(1);
}
//! [Interesting]
// Every half a second, sample the URM37 and output the measured
// distance in cm.
printf("Exiting\n");
while (shouldRun)
{
float distance, temperature;
urm37_close(sensor);
urm37_get_distance(sensor, &distance, 0);
printf("Detected distance (cm): %f\n", distance);
return 0;
urm37_get_temperature(sensor, &temperature);
printf("Temperature (C): %f\n\n", temperature);
upm_delay_ms(500);
}
//! [Interesting]
printf("Exiting\n");
urm37_close(sensor);
return 0;
}

54
examples/c/urm37.c
View File

@ -26,6 +26,8 @@
#include <signal.h>
#include "urm37.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,37 +39,43 @@ void sig_handler(int signo)
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a URM37 sensor on analog pin A0, reset pin on D2,
// trigger pin on D3 with an analog reference voltage of 5.0
urm37_context sensor = urm37_init(0, 2, 3, 5.0, 0, true);
if (!sensor)
if (mraa_init() != MRAA_SUCCESS)
{
printf("urm37_init() failed.\n");
return(1);
perror("Failed to initialize mraa\n");
return -1;
}
// Every half a second, sample the URM37 and output the measured
// distance in cm.
signal(SIGINT, sig_handler);
while (shouldRun)
//! [Interesting]
// Instantiate a URM37 sensor on analog pin A0, reset pin on D2,
// trigger pin on D3 with an analog reference voltage of 5.0
urm37_context sensor = urm37_init(0, 2, 3, 5.0, 0, true);
if (!sensor)
{
float distance;
urm37_get_distance(sensor, &distance, 0);
printf("Detected distance (cm): %f\n", distance);
usleep(500000);
printf("urm37_init() failed.\n");
return(1);
}
//! [Interesting]
// Every half a second, sample the URM37 and output the measured
// distance in cm.
printf("Exiting\n");
while (shouldRun)
{
float distance;
urm37_close(sensor);
urm37_get_distance(sensor, &distance, 0);
printf("Detected distance (cm): %f\n", distance);
upm_delay_ms(500);
}
return 0;
//! [Interesting]
printf("Exiting\n");
urm37_close(sensor);
return 0;
}

12
examples/c/vdiv.c
View File

@ -1,5 +1,5 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Author: Noel Eck <noel.eck@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@ -26,6 +26,8 @@
#include <signal.h>
#include "vdiv.h"
#include "upm_utilities.h"
#include "mraa.h"
bool shouldRun = true;
@ -37,6 +39,12 @@ void sig_handler(int signo)
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
@ -61,7 +69,7 @@ int main()
printf("Divide SW: %d ADC voltage: %0.03f Sensor voltage: %0.03f\n",
vdiv_get_divsw(sensor), raw_volts, computed_volts);
usleep(500000);
upm_delay_ms(500);
}
//! [Interesting]