[david51]

Originally Posted by AlbertoSONIC

Nope, you have to completely tear down the key and solder wires on the actual key's board. The battery has to be connected to the project's board. The arduino will take care of powering the key's board using the battery. (using a relay to connect it)

OK, thanks
it is necessary as even that there have contact of the battery as indicated in the photo?

[AlbertoSONIC]

Originally Posted by david51

OK, thanks
it is necessary as even that there have contact of the battery as indicated in the photo?

Nope, you don't have to connect those things, as they'll touch together when you rebuild the key.

[david51]

Originally Posted by AlbertoSONIC

Nope, you don't have to connect those things, as they'll touch together when you rebuild the key.

ok thank you very much alberto for your help

[david51]

Hello,
Is it normal that the relays heat up a lot?
when i plug my plug into my box my bmw demare directly is this normal?
the relay indicator lights always remain on even with the ignition off?

[AlbertoSONIC]

Originally Posted by david51

Hello,
Is it normal that the relays heat up a lot?
when i plug my plug into my box my bmw demare directly is this normal?

I don't remember the relays heating up a lot..

What do you mean with the second question?

[david51]

Originally Posted by AlbertoSONIC

I don't remember the relays heating up a lot..

What do you mean with the second question?

I'm talking about the socket that feeds my box
the relay indicator lights always remain on even with the ignition off?

[BeamerAR15]

Have you checked after 10 min. , when the car goes to sleep ?

[AlbertoSONIC]

Originally Posted by david51

I'm talking about the socket that feeds my box
the relay indicator lights always remain on even with the ignition off?

No that's not supposed to happen. All relay lights should light up only when the relay gets closed. What happens if you run the start sequence? Do they stay on or some light turns off?

[david51]

Originally Posted by BeamerAR15

Have you checked after 10 min. , when the car goes to sleep ?

Yes
after 10 min it remains on and the speedometer also remains on

[david51]

Originally Posted by AlbertoSONIC

No that's not supposed to happen. All relay lights should light up only when the relay gets closed. What happens if you run the start sequence? Do they stay on or some light turns off?

the boot sequence does not work

[AlbertoSONIC]

Originally Posted by david51

the boot sequence does not work

Ok so all relays are receiving 5v, which is wrong. Is the wiring correct? If you look at the schematic, you can see that pin 1-6 of the relay board are directly connected to D2-D7 pins on the arduino. Is that the same in your wiring?

[david51]

Originally Posted by AlbertoSONIC

Ok so all relays are receiving 5v, which is wrong. Is the wiring correct? If you look at the schematic, you can see that pin 1-6 of the relay board are directly connected to D2-D7 pins on the arduino. Is that the same in your wiring?

yes I did the same

[david51]

the only difference with your connection
is that I took the power and the mass on the odometer.
and the k-can2 on the idrive wheel

[AlbertoSONIC]

Originally Posted by david51

the only difference with your connection
is that I took the power and the mass on the odometer.
and the k-can2 on the idrive wheel

Just to make sure, have you programmed the arduino with latest code?

[david51]

Originally Posted by AlbertoSONIC

Just to make sure, have you programmed the arduino with latest code?

Can I do it remotely with ultraviewer?
I may have done the manipulation badly since I'm a novice with arduiro

[david51]

I always have the relays which remain on which heats the power supply and the relays.
is this due to an HS relay problem?
is the power supply supplying the relays and the nano card at the same time?
here are my connections

[AlbertoSONIC]

Originally Posted by david51

I always have the relays which remain on which heats the power supply and the relays.
is this due to an HS relay problem?
is the power supply supplying the relays and the nano card at the same time?
here are my connections

Is the power supply set to output 5V?

[david51]

Originally Posted by AlbertoSONIC

Is the power supply set to output 5V?

good news the relays are no longer lit
on the other hand output of the power supply I only have 3.38V

it is not possible to adjust the voltage? or must I buy another model ?

[AlbertoSONIC]

Originally Posted by david51

good news the relays are no longer lit
on the other hand output of the power supply I only have 3.38V

it is not possible to adjust the voltage? or must I buy another model ?

The power supply has a gold screw on a blue component on it. If you turn that screw, you can change the output.

DISCONNECT EVERYTHING FROM THE POWER SUPPLY WHEN YOU ADJUST IT!!!

You risk to set the output too high and fry some components! (like the arduino)

Remove it from the rest, set it to 5v and reconnect everything

[david51]

Originally Posted by AlbertoSONIC

The power supply has a gold screw on a blue component on it. If you turn that screw, you can change the output.

DISCONNECT EVERYTHING FROM THE POWER SUPPLY WHEN YOU ADJUST IT!!!

You risk to set the output too high and fry some components! (like the arduino)

Remove it from the rest, set it to 5v and reconnect everything

Thank you alberto
I tested the power board alone and the output is 5V as soon as I connect it to the relays and the arduino nano board the output goes down to 3.38V.
is this normal?

[david51]

I received my new power supply which is set to 5V at the output but unfortunately it still does not work

[AlbertoSONIC]

Originally Posted by david51

I received my new power supply which is set to 5V at the output but unfortunately it still does not work

Does the same thing happen when connected to the car 12V?