eZ Navi Delete Project

radensb

New PWA and current firmware are working (for the most part). I have a few bugs to work out with the timing and proper interpretation of the Mode form the CAN bus. Also, I have more work to do on the Bluetooth interface. There are things that need to be done on the app side as well that are being examined to complete that feature.

*please ignore all the blue test/debug wires headders...


Illumination in action:


Operation in action: (I dont have my debug screen available, but the changes in airflow can be heard)

Jetset

radensb, I love what you're doing. Fantastic work.
I'm wondering though, can the 3 Dials M67 4 & 5 connect directly to M72 6 & 8?
Or are they talking different languages?

radensb

Different languages and physical layers.

Pins 4 and 5 on the M67 are a completely different voltage signal and protocol than M72 pins 6 and 8. The dial module with M67 uses a RX and TX style of communication with a voltage reference lifted from ground (for noise immunity I imagine). This communication is directly with the AC Amp in base model cars.

The Navi stock controls on M72 operate on a secondary CAN bus (AV-Comm) with the Navi controls and touch screen interface. The Navi head unit has a CAN Bus hub that links the AV-Comm CAN bus with the main ECU CAN bus which is what the Navi based AC Amp (white box under head unit) is connected too. One set of CAN messages live on the AV-Comm CAN bus where certain ones that contain information about the state of the AC controls are translated into messages on the main ECU CAN Bus. This was needed to get the information about the AC system to the head unit so that it could be displayed for the user on the screen.

Jetset

Would it be possible to turn off the open driver's door beep under ACC mode with this project?
My previous 350Z had a spade lug in the steering column that you could pull to break the circuit. That was simple, CANBUS is a bit different.

radensb

I know exactly what you mean... as someone who has spent hours sitting in the car testing this and other projects, I can confirm it is awful. I have never looked into how the signal propagates in the system. It may not be CAN related. The problem is that if it is, there is some device pushing CAN messages that define the state of the chime (on or off). If my device also tries to send that same message and it is different that the other device in the car sending that message, the receiving device will get confused and may throw a code. Think of it like this, two people talking to a third person in a room telling them if he should ask a girl out. One is saying "YES" over and over while the other one is saying "NO" over and over. What's the guy to do!?

radensb

For those interested...

Below is the first spin of the updated version using the more powerful ARM based microcontroller. Sorry, I dont have 3D models of all the parts ... Time to order another kit of parts!

bigaudiofanat

Turn car to full on position. Shut door. Lock and unlock with key fob. Open door no beeps.

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radensb

Board fab and parts kit ordered. Should have first assemblies in a few weeks.
I have spent some more time with the code and focused on Bluetooth related items. The new version assembly should allow me to test the full intended functionality of this design. The app interface is also making progress, so I am told. Really looking forward to testing that out!


Excellent! 1000x thank you