Chicken Coop Lighting System

Ah, the interior lights… thanks for clarifying.

Hmmm… my first thought (if you’ve done/pinned everything I have is that your relay may be normally closed instead of open) If so, try switching the digitalWrite (relayInteriorLight, LOW); to HIGH and vice versa… see if that works. If not, let me know exactly what you’re doing to test. i.e., it’s difficult to test this function, in that the light should only goe on when the light levels read > 4 & < 120 and close when the bottom door switch is closed. Keep me posted. =) Cheers! Here's an article on NO/NC: http://hydrosystemsco.com/wp-content/uploads/2014/06/triton-relays-normally-open-vs-normally-closed.pdf For those reading that want to see what Mark is asking: // turn on interior lights at dusk and turn off after door shuts void doCoopInteriorLightDusk() { if ((unsigned long)(millis() - lastTwilightTime) > TwilightDelay) { // delay 5 mins

lastTwilightTime = millis();

doReadPhotoCell();
bottomSwitchPinVal = digitalRead(bottomSwitchPin);
if (bottomSwitchPinVal == 1) { // if bottom reed switch circuit is open (door is open)
if (photocellReading >= 4) { // if it’s twilight
if (photocellReading <= 120) { digitalWrite (relayInteriorLight, LOW); // turn on interior light relay if (SerialDisplay) { Serial.println(” Interior Light: On”); } } } } else if (bottomSwitchPinVal == 0) { // if bottom reed switch circuit is closed (door is closed) digitalWrite (relayInteriorLight, HIGH); // turn on interior light relay if (SerialDisplay) { Serial.println(” Interior Light: Off”); } } } }