48 lines
958 B
Text
48 lines
958 B
Text
// part of the groworld HPI prototype
|
|
|
|
#include <stdio.h>
|
|
|
|
#define lightpin 1 // light sensor on analog pin 1
|
|
#define humidpin 0 // humidity sensor on analog pin 0
|
|
#define power 8 // power for sensors
|
|
|
|
unsigned long then = 0; // timer which will run for < 50 days
|
|
unsigned long interval = 1; // interval between reads in seconds
|
|
|
|
void setup()
|
|
{
|
|
pinMode(power, OUTPUT);
|
|
pinMode(humidpin, INPUT);
|
|
pinMode(lightpin, INPUT);
|
|
|
|
Serial.begin(9600);
|
|
}
|
|
|
|
int lightlevel ()
|
|
{
|
|
int light = 0;
|
|
light = (analogRead(lightpin));
|
|
return light;
|
|
}
|
|
|
|
int moisturelevel ()
|
|
{
|
|
int moist = 0;
|
|
digitalWrite(power, HIGH);
|
|
moist = (analogRead(humidpin));
|
|
digitalWrite(power, LOW);
|
|
return moist;
|
|
}
|
|
|
|
char display[64];
|
|
|
|
void loop()
|
|
{
|
|
if (millis() - then > interval*1000) {
|
|
then = millis();
|
|
sprintf(display, "%u,%u,%u\n", (unsigned int)then, lightlevel(), moisturelevel());
|
|
Serial.print(display);
|
|
}
|
|
}
|
|
|
|
|