Arduino OBDII Bluetooth Car Engine RPM Shift Light

Arduino OBDII Bluetooth Car Engine RPM Shift Light
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It 's about an Arduino project connected to an ELM-327 OBDII Bluetooth through a HC-05 bluetooth module.
The HC-05 is connected to Arduino with serial UART, and is configured (with AT commands) as Master to connect to ELM-327 OBDII Bluetooth which is the slave.
As soon as connection established begins the initialitation (with AT commands) of ELM-327.
After that we can read Engine RPM from car's ECU.
Next just display the RPM to 7-segment LEDS.
Shift Lights going ON at the RPM that we configure pressing the button at desired Engine RPM, value is stored to EEPROM.

Please feel free to comment or contact me.
Kostas

[Newtonn]

Hi there! Thank you very much for this project! I’ve got mine working, but the date I receive from the ELM327 it’s not always correct, that make the display not been very accurate. Did you have issues like that?

[Karimds]

hi, thank you for the video, is it possible that you have approached cruise control project using the same tools? i'm working on one and facing some problems, will be nice to see someone do it in a good way

[e-abeleldoabraham]

Is this project be used for bikes also

[ulisesdiaz]

To read the speed, what part of the code should I change and what is the speed command?

[slota]

Hey, nice job.
Could you tell me what model of Arduino component I should buy to assemble this?

[ankhtoo]

Hello Konstantinos Kokoras
I try to do same thing, but I can not make connexion with OBDII module with the HC-05, do you have an example a code? The link you have in top of the page doesn't work?
Regards!

[melvyniandrag]

Thank for the follow! Love your vids man, going to try to do these projects soon with my car.

[luisvazquez]

Tengo problemas con mi comunicación del bluetooth al obd2, conecta pero no genera inf

[andreamene]

Hi, thanks for your video!
I have a question: Can I use HC06 instead HC05?
Thanks

[nicoladidonato]

What are the components used?
where is a connection scheme?

[yatitomar]

We are thinking of implementing this in our project, can you please share the circuit diagram pic of this? It would be really helpful.

[luiscarlos]

I have the same bluetooth but in the code you mention the Reset and PIO11 pins. Where are those pins? Thanks

[Dreamcatcherapps]

can you please share how you are communicating from arduino to OBD for data exchange

[luiscarlos]

I have the same OBD and it constantly disconnects from the bluetooth when I use an app to get data. Did it happen to you?

[e-abeleldoabraham]

And can you please share the connection diagram also

[watashiwaauto]

Hello. can timer1 work on this? or only timer.h ?

[EgoitzRodriguez]

Might put the source code of timer.h

Thanks