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Aquarium controller with LCD i2c 16x2, servo motor for food feeder, 2 temperature sensors (DS18B20) and 4 relays. Web interface using bootstrap.

Pin used on ESP8266:

• LCD(SDA) - GPIO4
• LCD(SCL) - GPIO5
• Relay1(LED Lights) - GPIO13
• Relay2(Air pump) - GPIO12
• Relay3(Heater) - GPIO14
• Relay4(Empty) -
• DS18B20 - GPIO0 (Aquarium and room temperature)
• Servo(Feeder) - GPIO15
• 3 Buttons - A0 (START, FOOD ON/OFF, LCD Back Light)

Default times:

• First LED on;
• After 5 min feeding on;
• After 15 min Air pump on;
• After 60 min Air pump off;
• After 30 min LED off; Total cycle time is 1h 45 min.

Delay time between runs is 5 min, during delay time if presing START button cycle is not run on.

Used libraries:

• LCD screen - https://github.com/lucasmaziero/LiquidCrystal_I2C