102 lines
2.7 KiB
Plaintext
102 lines
2.7 KiB
Plaintext
/*
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* Sample arduino sketch using contiki features.
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* We turn the LED off
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* We allow read the moisture sensor
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* Unfortunately sleeping for long times in loop() isn't currently
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* possible, something turns off the CPU (including PWM outputs) if a
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* Proto-Thread is taking too long. We need to find out how to sleep in
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* a Contiki-compatible way.
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* Note that for a normal arduino sketch you won't have to include any
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* of the contiki-specific files here, the sketch should just work.
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*/
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#include <Wire.h>
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#include "I2CSoilMoistureSensor.h"
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extern "C" {
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#include "arduino-process.h"
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#include "rest-engine.h"
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extern resource_t res_soiltemp,res_soilcap,res_soillight, res_battery;
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float soilcap;
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float soiltemp;
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float soillight;
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uint8_t soiladdr;
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uint8_t soilversion;
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char soilcap_s[8];
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char soiltemp_s[8];
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char soillight_s[8];
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I2CSoilMoistureSensor sensor;
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#define LED_PIN 4
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}
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void setup (void)
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{
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// switch off the led
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pinMode(LED_PIN, OUTPUT);
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digitalWrite(LED_PIN, HIGH);
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// Soil sensor
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Wire.begin();
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sensor.begin(); // reset sensor
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delay(1000); // give some time to boot up
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printf("I2C Soil Moisture Sensor Address: ");
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soiladdr = sensor.getAddress();
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printf("%X\n", soiladdr);
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printf("Sensor Firmware version: ");
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soilversion = sensor.getVersion();
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printf("%X\n", soilversion);
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sensor.startMeasureLight();
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// init coap resourcen
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rest_init_engine ();
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#pragma GCC diagnostic ignored "-Wwrite-strings"
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rest_activate_resource (&res_soiltemp, "s/temp");
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rest_activate_resource (&res_soilcap, "s/soil");
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rest_activate_resource (&res_soillight, "s/light");
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rest_activate_resource (&res_battery, "s/battery");
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#pragma GCC diagnostic pop
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}
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// at project-conf.h
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// LOOP_INTERVAL (1 * CLOCK_SECOND)
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#define MEASURE_INTERVALL 10
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void loop (void)
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{
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static int count=0;
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count ++;
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switch(count){
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case 1 :
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sensor.startMeasureLight();
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break;
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case 4 :
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if(!sensor.isBusy()){ // available since FW 2.3
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// measure the sensors
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soilcap = sensor.getCapacitance(); //read capacitance register
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soiltemp = sensor.getTemperature()/(float)10; //temperature register
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soillight = sensor.getLight(0); //request light measurement, read light register
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sensor.sleep(); // available since FW 2.3
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// convert to string
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dtostrf(soilcap , 0, 2, soilcap_s );
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dtostrf(soiltemp , 0, 2, soiltemp_s );
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dtostrf(soillight , 0, 2, soillight_s );
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// Debug Print
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printf("Temp: %s",soiltemp_s);
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printf("\t\tSoil: %s",soilcap_s);
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printf("\t\tLight: %s\n",soillight_s);
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}
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break;
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case (MEASURE_INTERVALL+1) :
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count = 0;
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break;
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}
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}
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