static rn2903_context _rn2903_preinit()
{
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
rn2903_context dev =
(rn2903_context)malloc(sizeof(struct _rn2903_context));
if (!dev)
return NULL;
// zero out context
memset((void *)dev, 0, sizeof(struct _rn2903_context));
// first response wait time
dev->cmd_resp_wait_ms = RN2903_DEFAULT_RESP_DELAY;
// optional second response wait time
dev->cmd_resp2_wait_ms = RN2903_DEFAULT_RESP2_DELAY;
// init stored baudrate to RN2903_DEFAULT_BAUDRATE
dev->baudrate = RN2903_DEFAULT_BAUDRATE;
// uncomment for "early" debugging
// dev->debug = true;
return dev;
}
mqx_context mqx_init(int16_t pin)
{
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
mqx_context dev = (mqx_context) malloc(sizeof(struct _mqx_context));
if (dev == NULL)
return NULL;
/* Init aio pin */
dev->aio = mraa_aio_init(pin);
if (dev->aio == NULL) {
free(dev);
return NULL;
}
/* Set the ADC ref, scale, and offset defaults */
dev->m_aRef = 5.0;
dev->m_scale = 1.0;
dev->m_offset = 0.0;
return dev;
}
void imuinit()
{
mraa_init();
i2c = mraa_i2c_init(1);
sendi2c( GYRO_I2C_ADDR, FIFO_CTRL_REG_G, 0 );
sendi2c( GYRO_I2C_ADDR, CTRL_REG1_G, 0x0F ); //Normal mode, enable all axes //0xFF ); //??unknown config??
sendi2c( GYRO_I2C_ADDR, CTRL_REG2_G, 0x00); // Normal mode, high cutoff frequency
sendi2c( GYRO_I2C_ADDR, CTRL_REG4_G, 0x10 ); // Set scale to 500 dps
sendi2c( GYRO_I2C_ADDR, CTRL_REG5_G, 0x00 ); // FIFO Disabled, HPF Disabled
sendi2c( XM_I2C_ADDR, FIFO_CTRL_REG, 0 );
sendi2c( XM_I2C_ADDR, CTRL_REG1_XM, 0xFF );
sendi2c( XM_I2C_ADDR, CTRL_REG2_XM, 0x00); //Set scale +/-2g
sendi2c( XM_I2C_ADDR, CTRL_REG4_XM, 0x30 );
sendi2c( XM_I2C_ADDR, CTRL_REG5_XM, 0x94);
sendi2c( XM_I2C_ADDR, CTRL_REG6_XM, 0x00);
sendi2c( XM_I2C_ADDR, CTRL_REG7_XM, 0x00);
/*
return;
while(1)
{
readGyro();
readAccel();
readMag();
printf("gx:%6.2f gy:%6.2f gz:%6.2f ax:%6.2f ay:%6.2f az:%6.2f mx:%6.2f my:%6.2f mz:%6.2f temp:%0.0f\n",gx,gy,gz,ax,ay,az,mx,my,mz,temp);
usleep(20000);
}
*/
}
led_context led_init(int pin){
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
led_context dev =
(led_context)malloc(sizeof(struct _led_context));
if (!dev)
return NULL;
dev->name = NULL;
dev->gpioled = NULL;
dev->led_pin = pin;
dev->gpio = mraa_gpio_init(dev->led_pin);
if (mraa_gpio_dir(dev->gpio, MRAA_GPIO_OUT) != MRAA_SUCCESS) {
printf("%s: Unable to set pin %d as output.\n", __FUNCTION__, pin);
free(dev);
return NULL;
}
return dev;
}
led_context led_init_str(const char* name){
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
led_context dev =
(led_context)malloc(sizeof(struct _led_context));
if (!dev)
return NULL;
dev->led_pin = -1;
dev->gpio = NULL;
dev->name = name;
dev->gpioled = mraa_led_init(name);
if (!dev->gpioled) {
printf("%s: Unable to initialize gpioled device (%s).\n", __FUNCTION__, dev->name);
free(dev);
return NULL;
}
dev->max_brightness = mraa_led_read_max_brightness(dev->gpioled);
return dev;
}
es9257_context es9257_init(int32_t pin, int32_t min_pulse_width,
int32_t max_pulse_width) {
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
es9257_context dev = (es9257_context) malloc(sizeof(struct _es9257_context));
if(dev == NULL){
printf("Unable to assign memory to the Servo motor structure");
return NULL;
}
dev->servo_pin = pin;
// second is the min pulse width
dev->min_pulse_width = min_pulse_width;
// third is the max pulse width
dev->max_pulse_width = max_pulse_width;
dev->pwm = mraa_pwm_init(dev->servo_pin);
if(dev->pwm == NULL){
printf("Unable to initialize the PWM pin");
}
es9257_set_angle(dev, 0);
return dev;
}
ppd42ns_context ppd42ns_init(int pin)
{
ppd42ns_context dev =
(ppd42ns_context)malloc(sizeof(struct _ppd42ns_context));
if (!dev)
return NULL;
dev->gpio = NULL;
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
ppd42ns_close(dev);
return NULL;
}
// MRAA contexts...
if ( !(dev->gpio = mraa_gpio_init(pin)) )
{
printf("%s: mraa_gpio_init() failed\n",
__FUNCTION__);
ppd42ns_close(dev);
return NULL;
}
mraa_gpio_dir(dev->gpio, MRAA_GPIO_IN);
return dev;
}
FskExport(FskErr) FskPinDigitalMRAA_fskLoad(FskLibrary library)
{
mraa_result_t result;
result = mraa_init();
if ((result == MRAA_SUCCESS) || (result == MRAA_ERROR_PLATFORM_ALREADY_INITIALISED))
return FskExtensionInstall(kFskExtensionPinDigital, &gMRAAPinDigital);
else
return kFskErrOperationFailed;
}
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a slide sensor on analog pin A0
slide_context sensor = slide_init(0);
if (!sensor)
{
printf("slide_init() failed.\n");
return -1;
}
// Set the aref, scale, and offset
slide_set_aref(sensor, 5.0);
slide_set_scale(sensor, 1.0);
slide_set_offset(sensor, -.1);
printf("aRef: %0.03f scale: %0.03f offset: %0.03f\n\n",
slide_get_aref(sensor),
slide_get_scale(sensor),
slide_get_offset(sensor));
// Every half a second, sample the sensor output
while (shouldRun)
{
float normalized = 0.0;
float raw_volts = 0.0;
float volts = 0.0;
slide_get_normalized(sensor, &normalized);
slide_get_raw_volts(sensor, &raw_volts);
slide_get_volts(sensor, &volts);
printf("Normalized output: %0.03f, raw slide sensor output: %0.03f v "
"adjusted output: %0.03f v\n", normalized, raw_volts, volts);
upm_delay_ms(500);
}
//! [Interesting]
printf("Exiting\n");
slide_close(sensor);
return 0;
}
void config(void) {
mraa_init(); // Inicia a biblioteca MRAA
ledPin = mraa_gpio_init(LED_PIN);
btnPin = mraa_gpio_init(BTN_PIN);
// Define que o terminal do LED é de saída
mraa_gpio_dir(ledPin, MRAA_GPIO_OUT);
// Ajusta o estado do LED para iniciar apagado
mraa_gpio_write(ledPin, 0);
}
// Initialization function
void init() {
// buzzer connected to A1 (aka digital out 15)
mraa_init();
buzzer = new mraa::Gpio(15);
buzzer->dir(mraa::DIR_OUT);
stop_alarm();
// moisture sensor on analog (A2)
moisture = new upm::GroveMoisture(2);
}
void startMRAA( void ) {
// printf( "\n I/O is enabled\n" );
mraa_init();
printf( " MRAA library Version: %s\n", mraa_get_version() );
mraa_platform_t platformType = mraa_get_platform_type();
printf( " Platform type: %d\n", platformType );
char *platformName = mraa_get_platform_name();
printf( " Platform name: %s\n", platformName );
}
int main()
{
uint8_t m[2];
m[0]=8;
m[1]=255;
mraa_init(); // can we put it in the beginning. Avoid repeating definition.
mraa_i2c_context pwm12;
pwm12 = mraa_i2c_init(2);
mraa_i2c_address(pwm12,12);
while(1)
mraa_i2c_write(pwm12,m,2);
return 0;
}
void GPIO_Init(void)
{
mraa_init();
//J18-2 --> GPIO-165
SCS = mraa_gpio_init(15);
printf("Ports initialized\n");
mraa_gpio_mode(SCS, MRAA_GPIO_PULLUP);
printf("Ports modes set\n");
mraa_gpio_dir(SCS, MRAA_GPIO_OUT);
printf("Port directions set\n");
}
// Initialization function
void init() {
mraa_init();
// temperature sensor connected to A1 (analog in)
temps = new mraa::Aio(1);
// buzzer connected to A2 (aka digital out 16)
buzzer = new mraa::Gpio(16);
buzzer->dir(mraa::DIR_OUT);
stopAlarm();
// flame sensor on A3
flame = new mraa::Aio(3);
}
int main()
{
printf("Arbotox Commander XBee Test!\n");
// Install signal handler to allow us to do some cleanup...
struct sigaction sigIntHandler;
sigIntHandler.sa_handler = SignalHandler;
sigemptyset(&sigIntHandler.sa_mask);
sigIntHandler.sa_flags = 0;
sigaction(SIGINT, &sigIntHandler, NULL);
mraa_uart_context uart;
mraa_init();
uart = mraa_uart_init(0);
if (uart == NULL) {
printf("MRAA UART failed to setup\n");
}
// Lets try to open the XBee device...
command.begin(szDevice, B38400);
printf("After Begin!\n");
// loop simply echo what we receive from xbee to terminal
// Now lets try to get data from the commander.
while (fRunning)
{
if (command.ReadMsgs())
{
// We have data. see if anything has changed before
if ((command.rightV != rightV) || (command.rightH != rightH) ||
(command.leftV != leftV) || (command.leftH != leftH) ||
(command.buttons != buttons) || (command.ext != ext))
{
// Something changed so print it out
rightV = command.rightV;
rightH = command.rightH;
leftV = command.leftV;
leftH = command.leftH;
buttons = command.buttons;
ext = command.ext;
printf("%x %x - %d %d %d %d\n", buttons, ext, rightV, rightH, leftV, leftH);
}
}
usleep(100);
}
return 0;
}
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
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)
{
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)
{
int i;
for (i=0; i<rv; i++)
printf("%c", buffer[i]);
}
}
}
//! [Interesting]
printf("Exiting\n");
nmea_gps_close(sensor);
return 0;
}
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
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)
{
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]);
}
}
if (shouldRun)
printf("Timed out\n");
//! [Interesting]
printf("Exiting\n");
nmea_gps_close(sensor);
return 0;
}
// uart init
ecezo_context ecezo_uart_init(unsigned int uart, unsigned int baudrate)
{
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
ecezo_context dev =
(ecezo_context)malloc(sizeof(struct _ecezo_context));
if (!dev)
return NULL;
// zero out context
memset((void *)dev, 0, sizeof(struct _ecezo_context));
// initialize the MRAA contexts
// uart, default should be 8N1
if (!(dev->uart = mraa_uart_init(uart)))
{
printf("%s: mraa_uart_init() failed.\n", __FUNCTION__);
ecezo_close(dev);
return NULL;
}
if (mraa_uart_set_baudrate(dev->uart, baudrate))
{
printf("%s: mraa_uart_set_baudrate() failed.\n", __FUNCTION__);
ecezo_close(dev);
return NULL;
}
mraa_uart_set_flowcontrol(dev->uart, false, false);
if (generic_init(dev))
{
printf("%s: generic_init() failed.\n", __FUNCTION__);
ecezo_close(dev);
return NULL;
}
return dev;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////// Modem related functions //////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int init_modem(){
mraa_init();
if( (uart = mraa_uart_init(0)) == NULL ){
writeToFile(src, "error INITIATING UART\n");
exit(UART_ERROR);
}
/*set uart boud rate [bps]*/
if ( mraa_uart_set_baudrate(uart, UART_BOUD_RATE)!=MRAA_SUCCESS) {
writeToFile(src, "error seting baudrate\n");
exit(UART_ERROR);
}
if ( mraa_uart_set_mode(uart, 8,MRAA_UART_PARITY_NONE , 1)!=MRAA_SUCCESS) {
writeToFile(src, "error seting mode\n");
}
mraa_uart_set_flowcontrol(uart, 0, 0);
writeToFile(src, "init modem\n");
}
mraa_boolean_t
mraa_pin_mode_test(int pin, mraa_pinmodes_t mode)
{
if (plat == NULL) {
mraa_init();
if (plat == NULL)
return 0;
}
if (pin > plat->phy_pin_count || pin < 0)
return 0;
switch(mode) {
case MRAA_PIN_VALID:
if (plat->pins[pin].capabilites.valid == 1)
return 1;
break;
case MRAA_PIN_GPIO:
if (plat->pins[pin].capabilites.gpio ==1)
return 1;
break;
case MRAA_PIN_PWM:
if (plat->pins[pin].capabilites.pwm ==1)
return 1;
break;
case MRAA_PIN_FAST_GPIO:
if (plat->pins[pin].capabilites.fast_gpio ==1)
return 1;
break;
case MRAA_PIN_SPI:
if (plat->pins[pin].capabilites.spi ==1)
return 1;
break;
case MRAA_PIN_I2C:
if (plat->pins[pin].capabilites.i2c ==1)
return 1;
break;
case MRAA_PIN_AIO:
if (pin < plat->aio_count)
pin = pin + plat->gpio_count;
if (plat->pins[pin].capabilites.aio ==1)
return 1;
break;
default: break;
}
return 0;
}
int
main(int argc, char **argv)
{
mraa_init();
float direction = 0;
int16_t x = 0, y = 0, z = 0;
char rx_tx_buf[MAX_BUFFER_LENGTH];
//! [Interesting]
mraa_i2c_context i2c;
i2c = mraa_i2c_init(0);
mraa_i2c_address(i2c, HMC5883L_I2C_ADDR);
rx_tx_buf[0] = HMC5883L_CONF_REG_B;
rx_tx_buf[1] = GA_1_3_REG;
mraa_i2c_write(i2c, rx_tx_buf, 2);
//! [Interesting]
mraa_i2c_address(i2c, HMC5883L_I2C_ADDR);
rx_tx_buf[0] = HMC5883L_MODE_REG;
rx_tx_buf[1] = HMC5883L_CONT_MODE;
mraa_i2c_write(i2c, rx_tx_buf, 2);
for(;;) {
mraa_i2c_address(i2c, HMC5883L_I2C_ADDR);
mraa_i2c_write_byte(i2c, HMC5883L_DATA_REG);
mraa_i2c_address(i2c, HMC5883L_I2C_ADDR);
mraa_i2c_read(i2c, rx_tx_buf, DATA_REG_SIZE);
x = (rx_tx_buf[HMC5883L_X_MSB_REG] << 8 ) | rx_tx_buf[HMC5883L_X_LSB_REG] ;
z = (rx_tx_buf[HMC5883L_Z_MSB_REG] << 8 ) | rx_tx_buf[HMC5883L_Z_LSB_REG] ;
y = (rx_tx_buf[HMC5883L_Y_MSB_REG] << 8 ) | rx_tx_buf[HMC5883L_Y_LSB_REG] ;
//scale and calculate direction
direction = atan2(y * SCALE_0_92_MG, x * SCALE_0_92_MG);
//check if the signs are reversed
if (direction < 0)
direction += 2 * M_PI;
printf("Compass scaled data x : %f, y : %f, z : %f\n", x * SCALE_0_92_MG, y * SCALE_0_92_MG, z * SCALE_0_92_MG) ;
printf("Heading : %f\n", direction * 180/M_PI) ;
}
}
void main(void)
{
mraa_init();
struct nano_timer timer;
void *timer_data[1];
nano_timer_init(&timer, timer_data);
mvs0608_context dev = mvs0608_init(2);
bool abc = 0;
while(1){
if(mvs0608_is_colliding(dev, &abc) != UPM_SUCCESS){
printf("an error has occured\n");
}
nano_timer_start(&timer, SLEEPTICKS);
nano_timer_test(&timer, TICKS_UNLIMITED);
printf("value retrieved: %d\n", abc);
}
mvs0608_close(dev);
}
// i2c ublox init
ecezo_context ecezo_i2c_init(unsigned int bus, uint8_t addr)
{
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
ecezo_context dev =
(ecezo_context)malloc(sizeof(struct _ecezo_context));
if (!dev)
return NULL;
// zero out context
memset((void *)dev, 0, sizeof(struct _ecezo_context));
// initialize the MRAA contexts
if (!(dev->i2c = mraa_i2c_init(bus)))
{
printf("%s: mraa_i2c_init() failed.\n", __FUNCTION__);
ecezo_close(dev);
return NULL;
}
if (mraa_i2c_address(dev->i2c, addr))
{
printf("%s: mraa_i2c_address() failed.\n", __FUNCTION__);
ecezo_close(dev);
return NULL;
}
if (generic_init(dev))
{
printf("%s: generic_init() failed.\n", __FUNCTION__);
ecezo_close(dev);
return NULL;
}
return dev;
}
int main()
{
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
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)
{
printf("urm37_init() failed.\n");
return(1);
}
// Every half a second, sample the URM37 and output the measured
// distance in cm.
while (shouldRun)
{
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);
upm_delay_ms(500);
}
//! [Interesting]
printf("Exiting\n");
urm37_close(sensor);
return 0;
}
void GPIO_Init(void)
{
mraa_init();
//J18-2 --> GPIO-165
SCS = mraa_gpio_init(15);
//printf("Ports initialized\n");
mraa_gpio_use_mmaped(SCS, 1);
mraa_gpio_mode(SCS, MRAA_GPIO_PULLUP);
//printf("Ports modes set\n");
mraa_gpio_dir(SCS, MRAA_GPIO_OUT);
//printf("Port directions set\n");
VDD = mraa_gpio_init(31); // GP44
mraa_gpio_mode(VDD, MRAA_GPIO_PULLUP);
mraa_gpio_dir(VDD, MRAA_GPIO_OUT);
}
static speaker_context _common_init()
{
// make sure MRAA is initialized
int mraa_rv;
if ((mraa_rv = mraa_init()) != MRAA_SUCCESS)
{
printf("%s: mraa_init() failed (%d).\n", __FUNCTION__, mraa_rv);
return NULL;
}
speaker_context dev =
(speaker_context)malloc(sizeof(struct _speaker_context));
if (!dev)
return NULL;
// zero out context
memset((void *)dev, 0, sizeof(struct _speaker_context));
return dev;
}
int main(int argc, char *argv[])
{
mraa_init();
fprintf(stdout, "Hello mraa.\nVersion: %s\n", mraa_get_version());
// LED
out = mraa_gpio_init(20);
if(out == NULL){
printf("Error: init out.\r\n");
return 1;
}
mraa_gpio_dir(out, MRAA_GPIO_OUT);
// Switch
mraa_gpio_context in = mraa_gpio_init(14);
if(in == NULL){
printf("Error: init in.\r\n");
return 1;
}
mraa_gpio_dir(in, MRAA_GPIO_IN);
mraa_gpio_mode(in, MRAA_GPIO_PULLUP);
// 割込関数の登録
mraa_gpio_isr(in, MRAA_GPIO_EDGE_BOTH, interrupt_in, (void *)in);
while(1) {}
mraa_gpio_isr_exit(in);
mraa_gpio_close(in);
mraa_gpio_close(out);
mraa_deinit();
return 0;
}
int main(int ac, char **av)
{
int iopin;
mraa_result_t result;
mraa_gpio_context gpio;
int value;
mraa_init();
if (ac != 3) {
fprintf(stderr, "Usage: %s pin_number\n" \
"\nExample: %s 7 -> Read pin 7\n"
, av[0], av[0]);
return -1;
}
iopin = atoi(av[1]);
/* Initialisation of pin */
gpio = mraa_gpio_init(iopin);
if (gpio == NULL) {
fprintf(stderr, "[-] Initialisation of pin %d failed. Is this pin exist on your platform?\n", iopin);
return -1;
}
/* Set GPIO direction */
result = mraa_gpio_dir(gpio, MRAA_GPIO_IN);
if (result != MRAA_SUCCESS) {
mraa_result_print(result);
return -1;
}
value = mraa_gpio_read(gpio);
if (result != MRAA_SUCCESS)
mraa_result_print(result);
printf("%d", value);
return 0;
}
int main() {
float Rsensor; //Resistance of sensor in K
// Setup()
mraa_init();
mraa_aio_context sensor = mraa_aio_init(analog_Pin_0);
uint16_t adc_value = 0;
float adc_value_float = 0.0;
for (;;) {
adc_value = mraa_aio_read(sensor);
adc_value_float = mraa_aio_read_float(sensor);
Rsensor=(float)(1023-adc_value)*10/adc_value;
fprintf(stdout, "ADC A0 read %X - %d\n", adc_value, adc_value);
fprintf(stdout, "ADC A0 read float - %.5f\n", adc_value_float);
printf("Cant Luz: %.5f\n", Rsensor);
usleep(10000);
}
mraa_aio_close(sensor);
return MRAA_SUCCESS;
}