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Question Mekede /Navifly 7862 CAN code.

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Daro101

New member
Aug 2, 2021
2
1
Hi.
Can any of you add modified CAN codes to the 7862 radio? I have a Peugeot 308 SW car. Unfortunately, it is not on the car list. I am currently using the setting for the Peugeot 408. But not all functions are working. The steering wheel rotation codes that are used for the moving guide lines for the rear view camera are missing.
 

burjtech

Member
Apr 7, 2017
23
2
depends who is the manufacturer of the decoder, however try XP, or OD or check all, Android Settings > Car settings > Factory settings (password: 126) > Canbus tab > Select the manufacturer of your canbus decoder and the car model, or select the closest match if you cannot find exact model, e.g. volvo xc90 not on list but xc60 available. I hope it make sense.
 

COASTER19

Member
Aug 27, 2019
15
4
I'm working on an open source CAN bus box for these sort of situations. The idea is that it fits exactly into the connector for the existing standard CAN bus boxes all these units use (so it will work for PX5/PX6/intel/UIS7862 etc). I've had a similar problem with my Audi A3, where the button functions are incorrect and unchangeable. My car also has an OLED display on the gauge cluster which doesn't show anything useful without the stock head unit (my primary motivation for this project). I'll make a more detailed post about it here once it's working smoothly in my car. For now I'm still working out a few hardware and software kinks, especially since I also need it to control my external DAC and gauge display.

To configure it for your car you will need to know the CAN bus communication rate, as well as the packet ID and bits changed for the following functions:
  • ACC on
  • Park
  • Reverse
  • Headlight/interior illumination brightness
Optional:
  • Steering wheel buttons (if you want SWC)
  • Dashboard display (if you have one - mine operates as 1 line 20 characters in my preferred configuration)
  • Interesting parameters to monitor (fuel consumption, temperature, instantaneous speed, etc)
I'd also suggest being familiar with modifying Arduino code to change the packet values as I won't modify it for anything other than my Audi A3 8P. The way this data is coded can vary quite a lot car to car - for example in mine the brightness is coded as an integer from 0-100. You'll also need a way to solder the parts.

JLCPCB is insanely cheap for ordering boards if you're a new customer, and the rest of the components cost ~$30. I may build and sell some of my extra boards if there's interest, but I won't be providing any software besides for my Audi A3 8P. I'll update within the month, as I don't anticipate needing to change anything this point besides software, but only have 1 day a week to dedicate time to this project so progress has been slow.
 

dacian72

Member
Jan 26, 2018
5
0
Salut.
Poate cineva dintre voi adăuga coduri CAN modificate la radio 7862? Am o mașină Peugeot 308 SW. Din păcate, nu este pe lista de mașini. În prezent folosesc setarea pentru Peugeot 408. Dar nu toate funcțiile funcționează. Codurile de rotație ale volanului utilizate pentru liniile de ghidare mobile ale camerei de vizualizare din spate lipsesc.
Hi try these:

8888

6789

7890

3368

3369

1617

1618

1688

and the list can continue to check on these and let you know if it was helpful



Salut incearcale pe astea:
8888
6789
7890
3368
3369
1617
1618
1688
si lista poate continua verificale pe astea si anuntama daca ti fost de ajutor
 
Last edited by a moderator:

marchnz

Senior Member
Nov 26, 2012
3,859
768
wombleton
I'm working on an open source CAN bus box for these sort of situations. The idea is that it fits exactly into the connector for the existing standard CAN bus boxes all these units use (so it will work for PX5/PX6/intel/UIS7862 etc). I've had a similar problem with my Audi A3, where the button functions are incorrect and unchangeable. My car also has an OLED display on the gauge cluster which doesn't show anything useful without the stock head unit (my primary motivation for this project). I'll make a more detailed post about it here once it's working smoothly in my car. For now I'm still working out a few hardware and software kinks, especially since I also need it to control my external DAC and gauge display.

To configure it for your car you will need to know the CAN bus communication rate, as well as the packet ID and bits changed for the following functions:
  • ACC on
  • Park
  • Reverse
  • Headlight/interior illumination brightness
Optional:
  • Steering wheel buttons (if you want SWC)
  • Dashboard display (if you have one - mine operates as 1 line 20 characters in my preferred configuration)
  • Interesting parameters to monitor (fuel consumption, temperature, instantaneous speed, etc)
I'd also suggest being familiar with modifying Arduino code to change the packet values as I won't modify it for anything other than my Audi A3 8P. The way this data is coded can vary quite a lot car to car - for example in mine the brightness is coded as an integer from 0-100. You'll also need a way to solder the parts.

JLCPCB is insanely cheap for ordering boards if you're a new customer, and the rest of the components cost ~$30. I may build and sell some of my extra boards if there's interest, but I won't be providing any software besides for my Audi A3 8P. I'll update within the month, as I don't anticipate needing to change anything this point besides software, but only have 1 day a week to dedicate time to this project so progress has been slow.
Hi @COASTER19 .

Thanks for posting about this, always good to hear about real development work.

I for one would be very interested to read more about your project, would you consider posting more information.

Also, there is another thread discussing similar work you may not be aware of, so have posted here.

 

amin111111111

Member
Oct 14, 2010
7
0
hi all, i am new here and thinking to buy navifly HU
I have one question, dose the unit support climate control for AC? can I control my AC from unit?
The other question, can i add 360 cameras system?

Thansk
 

COASTER19

Member
Aug 27, 2019
15
4
hi all, i am new here and thinking to buy navifly HU
I have one question, dose the unit support climate control for AC? can I control my AC from unit?
The other question, can i add 360 cameras system?

Thansk
It depends on whether your car exposes CAN-bus to the head unit and whether the provided CAN-bus box supports it. Generally, the answer is no unless specifically mentioned in the listing text. Navifly support doesn't speak good English, so I wouldn't expect a correct answer from them.


@marchnz I posted an early demo of the project on Youtube and have attached the latest schematic to this post.

I'll start a thread in a few more weeks once I get the optical audio working, but the current board layout probably needs another revision before then. I had to use a rotary tool to cut part of the board so the connector could physically fit. CANBOX looks interesting, but also works very differently from what I'm doing. I'll look into it more once I have a fully functional stereo again, as I'm definitely interested in trying to get some of those functions running.
 

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marchnz

Senior Member
Nov 26, 2012
3,859
768
wombleton
It depends on whether your car exposes CAN-bus to the head unit and whether the provided CAN-bus box supports it. Generally, the answer is no unless specifically mentioned in the listing text. Navifly support doesn't speak good English, so I wouldn't expect a correct answer from them.


@marchnz I posted an early demo of the project on Youtube and have attached the latest schematic to this post.

I'll start a thread in a few more weeks once I get the optical audio working, but the current board layout probably needs another revision before then. I had to use a rotary tool to cut part of the board so the connector could physically fit. CANBOX looks interesting, but also works very differently from what I'm doing. I'll look into it more once I have a fully functional stereo again, as I'm definitely interested in trying to get some of those functions running.

Fantasic work, really like the approach to steering wheel keys.

What is selected for CANBus type on the unit to enable the split between analog steering wheel, Illumination, ACC and vehicle specific CANBus signaling say from car doors, AC etc?

I am very interested in making one and having a go at modifying the software for Toyota specific vehicles, if you're comfortable with releasing and commenting the source? Understand if you're not though :)

Great video. Thanks again for contributing to real development. Your work deserves its own thread!
 

COASTER19

Member
Aug 27, 2019
15
4
Illumination, ACC state, Park state, and Reverse are just +12v signals onto wires. Normally, everything else happens over the serial communication, but in my case I use KEY1/KEY2 with selectable resistors for SWC.

Vehicle specific stuff such as reverse radar sensors, climate control, and door status would require reverse engineering the head unit's 2 wire serial protocol. Luckily it does appear at first glance that the protocol is the primary focus of the CANBOX project.

If there's a way to select an app to open over that serial connection it would be really convenient, but I don't think that's an option discovered yet. It would allow the mode carousel to be controlled entirely from the microcontroller which would be great. I loved how HAL9k's ROM on my PX6 allowed me to customize this, but my PX6 ran incredibly slow for some reason (20+ seconds to open maps). The 7862 is far nicer hardware despite the unpolished software, so the preferable option to me. Optical audio output is also great compared to the noise in both the PX6 and 7862 amps.
 
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    I'm working on an open source CAN bus box for these sort of situations. The idea is that it fits exactly into the connector for the existing standard CAN bus boxes all these units use (so it will work for PX5/PX6/intel/UIS7862 etc). I've had a similar problem with my Audi A3, where the button functions are incorrect and unchangeable. My car also has an OLED display on the gauge cluster which doesn't show anything useful without the stock head unit (my primary motivation for this project). I'll make a more detailed post about it here once it's working smoothly in my car. For now I'm still working out a few hardware and software kinks, especially since I also need it to control my external DAC and gauge display.

    To configure it for your car you will need to know the CAN bus communication rate, as well as the packet ID and bits changed for the following functions:
    • ACC on
    • Park
    • Reverse
    • Headlight/interior illumination brightness
    Optional:
    • Steering wheel buttons (if you want SWC)
    • Dashboard display (if you have one - mine operates as 1 line 20 characters in my preferred configuration)
    • Interesting parameters to monitor (fuel consumption, temperature, instantaneous speed, etc)
    I'd also suggest being familiar with modifying Arduino code to change the packet values as I won't modify it for anything other than my Audi A3 8P. The way this data is coded can vary quite a lot car to car - for example in mine the brightness is coded as an integer from 0-100. You'll also need a way to solder the parts.

    JLCPCB is insanely cheap for ordering boards if you're a new customer, and the rest of the components cost ~$30. I may build and sell some of my extra boards if there's interest, but I won't be providing any software besides for my Audi A3 8P. I'll update within the month, as I don't anticipate needing to change anything this point besides software, but only have 1 day a week to dedicate time to this project so progress has been slow.
    1
    hi all, i am new here and thinking to buy navifly HU
    I have one question, dose the unit support climate control for AC? can I control my AC from unit?
    The other question, can i add 360 cameras system?

    Thansk
    It depends on whether your car exposes CAN-bus to the head unit and whether the provided CAN-bus box supports it. Generally, the answer is no unless specifically mentioned in the listing text. Navifly support doesn't speak good English, so I wouldn't expect a correct answer from them.


    @marchnz I posted an early demo of the project on Youtube and have attached the latest schematic to this post.

    I'll start a thread in a few more weeks once I get the optical audio working, but the current board layout probably needs another revision before then. I had to use a rotary tool to cut part of the board so the connector could physically fit. CANBOX looks interesting, but also works very differently from what I'm doing. I'll look into it more once I have a fully functional stereo again, as I'm definitely interested in trying to get some of those functions running.
    1
    Illumination, ACC state, Park state, and Reverse are just +12v signals onto wires. Normally, everything else happens over the serial communication, but in my case I use KEY1/KEY2 with selectable resistors for SWC.

    Vehicle specific stuff such as reverse radar sensors, climate control, and door status would require reverse engineering the head unit's 2 wire serial protocol. Luckily it does appear at first glance that the protocol is the primary focus of the CANBOX project.

    If there's a way to select an app to open over that serial connection it would be really convenient, but I don't think that's an option discovered yet. It would allow the mode carousel to be controlled entirely from the microcontroller which would be great. I loved how HAL9k's ROM on my PX6 allowed me to customize this, but my PX6 ran incredibly slow for some reason (20+ seconds to open maps). The 7862 is far nicer hardware despite the unpolished software, so the preferable option to me. Optical audio output is also great compared to the noise in both the PX6 and 7862 amps.