Need help building a device to manipulate low voltage

[Marky522]

Hello, I need some assistance building a device. I want to input a voltage below 5v, process it and manipulate it by a programmed amount. It won't be perfectly even so I can't do it by a set resistance, meaning the scaling will be different. Example: input 3.74v process it as 73 degrees, then reference the programmed scale for 73 degrees which would be 2.41v... I am mechanically and electrically inclined, have always been interested in building electronics cause I haven't ever donne it! Any input is appreciated!

Mark

 

[Fish4Fun]

Welcome to PF!

Sounds like what you are looking for is an ADC (Analog to Digital Converter). There are also IC's that take a temperature probe as an input and output the result using various protocols. You might also consider simply using a uController with a built-in ADC and simply connecting a temperature probe to it.

A bit more detail on your actual project//goal might help refine answers.

Fish