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add Buzzer

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This commit is contained in:
Harald Pichler 2015-02-05 13:44:05 +01:00
parent 98be2c25ea
commit c30493e535
1 changed files with 11 additions and 3 deletions
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14
examples/osd/arduino-wateralert/sketch.pde
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@ -16,8 +16,8 @@ extern "C" {
extern resource_t res_moisture, res_battery;
uint8_t moisture_pin = A5;
uint16_t moisture_voltage = 0;
#define LED_PIN 4
#define BUZZER_PIN 3 /* sig pin of the buzzer */
#define LED_PIN 4 /* LED Pin */
}
void setup (void)
@ -25,6 +25,9 @@ void setup (void)
// switch off the led
pinMode(LED_PIN, OUTPUT);
digitalWrite(LED_PIN, HIGH);
// setup Buzzer
pinMode(BUZZER_PIN, OUTPUT);
digitalWrite(BUZZER_PIN, HIGH);
// init coap resourcen
rest_init_engine ();
rest_activate_resource (&res_moisture, "s/moisture");
@ -33,5 +36,10 @@ void setup (void)
void loop (void)
{
moisture_voltage = analogRead(moisture_pin);
if(moisture_voltage < 800){
digitalWrite(BUZZER_PIN, LOW);
}else{
digitalWrite(BUZZER_PIN, HIGH);
}
}