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input dev - temp
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Input Devices
======================

This week I will use analog sensors to measure things like temperature and light using a Peizo vibration sensor and a phototransistor.

For reference, I used the Arduino love-o-meter project as it used the temperature sensor.
I started by collecting all the components.

![Gathering components](./images/input/shopping.jpeg)

I used this schematic to connect everything.
![Sketch](./images/input/schematic.jpeg)

The circuit setup was fairly easy. This is how it looks.
![setup](./images/input/setup.jpeg)

At first all lights were continuously on. I checked the serial monitor and saw that the temperature was around 26 degrees without touching. So I adjusted the baseline temperature to 25 in the sketch. After some trial and error, I adjusted the sketch so that on touching it lightly for about 5 seconds, the second led lit up and on holding it tight for some seconds the third led lit up. The serial monitor indicated temperature range from 26-32 degrees.
So an increment of 2-4-6 degrees worked out perfectly.

![serial](./images/input/serial.jpeg)

This is it in action.
![in action](./images/input/hot.gif)

####Code
![Sketch](./images/input/3leds.zip)

####Tutorials
[Arduino Project 3](https://create.arduino.cc/projecthub/godboi123/love-o-meter-bda552)