Find diagrams and code at https://www.elithecomputerguy.com/2019/06/temperature-led-alert-and-fan-activation-with-arduino/

This project determines the temperature using an Analog Temperature Sensor and then turns on LED warning lights, and exhaust fans.

Functional Parts in the Project:

Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3
L298N Motor Module – https://amzn.to/2Xa9uiR
200mm 12v Fan – https://amzn.to/2X40nQt
Analog Temperature Sensor – https://amzn.to/2Rkkl3k
220 Ohm Resistors – https://amzn.to/2RiiMD9
Breadboard Kit – https://amzn.to/2Xih5ei
LED Kit – https://amzn.to/2Rjhs2N
560 Piece Jumper Wire Kit – https://amzn.to/2MsCLjL

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