osd-contiki/examples/osd/arduino-bh1750/sketch.pde

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/*
* Sample arduino sketch using contiki features.
* We turn the LED off
* We allow read the moisture sensor
* Unfortunately sleeping for long times in loop() isn't currently
* possible, something turns off the CPU (including PWM outputs) if a
* Proto-Thread is taking too long. We need to find out how to sleep in
* a Contiki-compatible way.
* Note that for a normal arduino sketch you won't have to include any
* of the contiki-specific files here, the sketch should just work.
*/
#include <Wire.h>
#include "BH1750FVI.h"
extern "C" {
#include "arduino-process.h"
#include "rest-engine.h"
BH1750FVI lightMeter;
extern resource_t res_bh1750, res_battery;
uint16_t lux;
#define LED_PIN 4
}
void setup (void)
{
// switch off the led
pinMode(LED_PIN, OUTPUT);
digitalWrite(LED_PIN, HIGH);
// BH1750 sensor
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Wire.begin();
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lightMeter.begin();
// init coap resourcen
rest_init_engine ();
rest_activate_resource (&res_bh1750, "s/lux");
rest_activate_resource (&res_battery, "s/battery");
}
// at project-conf.h
// LOOP_INTERVAL (10 * CLOCK_SECOND)
void loop (void)
{
mcu_sleep_off();
lux = lightMeter.getLightLevel();
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printf("Lux: %d\n",lux);
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mcu_sleep_on();
}