I want to design a plug in device that can be put in line to an engine ECU.
I would like to sense the voltage from the O2 sensors then modify the voltage to my specification then pass this back out to the ECU to do with what it needs to.
How would be the best write some code that creates a device the measures voltage then output an adjusted voltage?
Fritzables
Adjusting Voltage Output (O2 Sensor)?
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- Posts: 61
- Joined: 07 Jun 2008 13:20
- Location: Brisbane AUSTRALIA
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- Posts: 61
- Joined: 07 Jun 2008 13:20
- Location: Brisbane AUSTRALIA
I forgot to say that if you want to use the A/D converter you will need to have direct access to the sensor, in order to read it's voltage. You can also use the on board diagnostic to read anything you want from any sensor of the ECU. You will have to serial communicate with an ELM323 chip (this one "knows" the OBD protocol, and it will give you what you need.
The way you want to go is your choice
The way you want to go is your choice