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