Voltage Output for use with Megasquirt

[Paulo]

Hi,

I´m already successfully running the Lamdashield 2 with a display in my car. Now I need a 0-5V Signal from the shield to connect to my Megasquirt (KDFI) ECU. In an older topic I´ve read that you can get the signal from A0, is that still the case?
Also I have to calibrate the controller in the Software (TunerStudio). Can you please tell me the AFR value for two points of Voltage, for Example 1V and 4V? Is the sensor linear?

Thank you very much in advance!

Paul

[Christian_Bylund]

Hello Paulo,

You will find all you need in this post.

Good luck!

[Paulo]

Hi Christian,

thanks for your reply. I implemented the lines from your previous post to your GUI code from Github and wired up a resistor (470R) and a capacitor (220uF) to pin 3 according to your sketch. But i still don`t get a good signal. Unfortunately to measure the output, I only have a standard multi-meter available. It sometimes shows 0,2V for a split of a second, then 0V from there on.
Do you have an idea what I am doing wrong?

Your help is very appreciated, thank you!

Paul