Amplifying Arduino Imput

Hi how can i amplify a 0-0.7V signal to 5V? it seem to be a simple task

thank you in advance

-malthemail

malthemail:
Hi how can i amplify a 0-1V signal to 5V? it seem to be a simple task

thank you in advance

-malthemail

Explain why. We may have a better way. What type of signal?

Weedpharma

Some 1$ device like this: MCP6041 with single supply voltage.

And some easy reading Opamp wiki will be a great start.

Experiment with a simulator and click to change values and more: here

More OP Amp circuits in the simulator "Circuits" menu.

Or, leave the analog signal alone and switch to the optional 1.1V ADC reference.