49 lines
1.4 KiB
Plaintext
49 lines
1.4 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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extern "C" {
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#include "rest-engine.h"
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extern volatile uint8_t mcusleepcycle; // default 16
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extern resource_t res_moisture, res_battery;
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uint8_t moisture_pin = A5;
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uint16_t moisture_voltage = 0;
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#define BUZZER_PIN 3 /* sig pin of the buzzer */
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#define LED_PIN 4 /* LED Pin */
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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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// setup Buzzer
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pinMode(BUZZER_PIN, OUTPUT);
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digitalWrite(BUZZER_PIN, LOW);
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// init coap resourcen
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rest_init_engine ();
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rest_activate_resource (&res_moisture, "s/moisture");
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rest_activate_resource (&res_battery, "s/battery");
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}
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void loop (void)
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{
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mcusleepcycle=0; // dont sleep
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moisture_voltage = analogRead(moisture_pin);
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if(moisture_voltage < 800){
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digitalWrite(BUZZER_PIN, LOW);
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}else{
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digitalWrite(BUZZER_PIN, HIGH);
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}
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mcusleepcycle=32; // sleep, wakeup every 32 cycles
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}
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