Arduino project to control the climate a cellar (e.g. in the loundry room)
##Required arduino libraries
-
[https://github.com/adafruit/Adafruit-RGB-LCD-Shield-Library]
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[https://github.com/adafruit/DHT-sensor-library]
##Required Hardware:
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Arduino Uno R3 (Atmega328)
[https://www.adafruit.com/product/50 ] -
LCD Shield Kit w/ 16x2 Character Display (I2C)
[https://www.adafruit.com/products/772] -
2 x DHT22 temperature-humidity sensor
[https://www.adafruit.com/products/385] -
Fan e.g. like Papst 4412F/2 GLL
[https://www.brack.ch/papst-gehaeuseluefter-4412f2-17333] -
Any 12V 2A powersupply
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Some resistors to connect all the sensors/fans to the arduino.
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A relais or a some FETs to switch on/off the FAN
##Precondition for the building (cellar) itself
- A hole in the building hull that allows fresh air to be ventilated in by the fan
- a second hole in the building hull that allows the humid air to go out
##Connections
- DHT22 (inside) signal on digital pin 2 (INPUT)
- DHT22 (outside) signal on digital pin 4 (INPUT)
- FAN rmp with 10k pullup on digital pin 3 (INPUT)
- FAN on/off on digital pin 8 (OUTPUT)
- Vin measurement with voltage divider (20k / 50k) on analog pin A0 (INPUT)