Arduino - Temperature sensor to RGB LED

[Shadow5679]

Hey all,

I was just wondering if someone could help me to make an arduino circuit get the temperature from a sensor, and then change the colour of an RGB LED depending on the temperature.

Any help is appreciated!

 

[Severin]

You need to get the value from your temperature sensor, it can depend on the model (check the documentation) and output it to your led.

 

An RGB led have 4 pins, 1 for each color and a negative. Each color pin need to be connected to a digital or analog (I can remember) pin since you need to output a value from 0 to 255 (0 = not power, 255 = full power).

 

In the code you will need a loop that take the input from the digital or analog (I can remember) pin of the sensor and convert it to data you want. Depending on the color you want you will output different color based on the sensor value to each color pin. You will probably need a resistance on the negative pin of your led.