Discovery 3 CD 400 Bluetooth streaming

[rangeyrover]

Hi All,
As I still have a CD 400 (poverty Spec) in the garage, I'm going to get bluetooth streaming working, to show how it can be done, with an el cheapo ebay bluetooth module.
I don't have a Discovery 3 anymore. Does anyone have a steering wheel or the RH side audio control buttons, as I think I can get them to work with the bluetooth module, just need a set to play with.
Thanks
RR

[loanrangie]

I dont have the audio buttons but have done the aux input mod and use a $3 BT adapter for streaming to my CD400.

[rangeyrover]

I dont have the audio buttons but have done the aux input mod and use a $3 BT adapter for streaming to my CD400.

I used to do the same thing, except with an expensive parrot system, 9100 which everyone complained about call quality with. What I'm trying to do this time is to get bluetooth streaming working using the audio buttons and one of these. Bonus points if I can get the calls working...https://i.ebayimg.com/images/g/0GoAAOSwlMRa2IO3/s-l1600.jpg

[Eric SDV6SE]

I dont have the audio buttons but have done the aux input mod and use a $3 BT adapter for streaming to my CD400.

I bought a$50 bluetooth unit (switchable from receiver to transmitter) from Jaycar electronics. Plugs into the aux input jack in the car. Phone picks this up and I can now stream music via bluetooth . Calls as well afaik.
If you are just after bluetooth phone calls, they also have these for about 25 bucks

[loanrangie]

Going to install an android head unit in the empty space where the satnav screen goes.

[Cambo_oldjaguar]

I've got a couple of steering wheel switch packs here, the ones without the phone buttons, if you want one, you can have one.

[loanrangie]

I've got a couple of steering wheel switch packs here, the ones without the phone buttons, if you want one, you can have one.The one's for the rh side for audio control ?

[rangeyrover]

I've got a couple of steering wheel switch packs here, the ones without the phone buttons, if you want one, you can have one.

That would be great! I don't need to keep them, just to read the resistance and voltage value when a button is pressed.
PM Sent. Thanks

[rangeyrover]

That would be great! I don't need to keep them, just to read the resistance and voltage value when a button is pressed.
PM Sent. Thanks

Well,
Thanks to Cambo@oldjaguar I now have a switch pack to mess about with. Thanks!
Watch this space for more news

[pastor098]

I dont have the audio buttons but have done the aux input mod and use a $3 BT adapter for streaming to my CD400.

Which BT adaptor did you go with mate? So many on the market, suffering from analysis paralysis [bighmmm]

[loanrangie]

Just this cheapy, I bought 4 in case they were rubbish but it works OK.https://uploads.tapatalk-cdn.com/20181119/b6a1deb232ee65a2576e0631ad085cef.jpg

[pastor098]

Just this cheapy, I bought 4 in case they were rubbish but it works OK.https://uploads.tapatalk-cdn.com/20181119/b6a1deb232ee65a2576e0631ad085cef.jpg

Ta mate!

[PeterOZ]

Can't even find those listed on jaycar website. Have to go to the one enar home tomorrow so will ask in store.

[loanrangie]

Can't even find those listed on jaycar website. Have to go to the one enar home tomorrow so will ask in store.

The pic above isn't from Jaycar or ebay, just a chinese site i found.
I should add that you need to have added an aux. input to the stereo if yours doesn't have one already.

[rangeyrover]

Across pins 2 & 3 in Ohms:

No Buttons pressed = 30.67KΩ
|<< = 2.052KΩ
>>|= 3.067KΩ
Vol+ = 4.606KΩ
Vol- = 336.7Ω
Mode = 1.318KΩ

[loanrangie]

Across pins 2 & 3 in Ohms:

No Buttons pressed = 30.67KΩ
|<< = 2.052KΩ
>>|= 3.067KΩ
Vol+ = 4.606KΩ
Vol- = 336.7Ω
Mode = 1.318KΩ

If you don't plan on fitting the switch panel i'll take it off your hands when you're done.

[PeterOZ]

https://www.aulro.com/afvb/images/misc/quote_icon.png Originally Posted by loanrangie https://www.aulro.com/afvb/images/buttons/viewpost-right.png (https://www.aulro.com/afvb/l319-discovery-3-and-4-a/266531-discovery-3-cd-400-bluetooth-streaming-post2857170.html#post2857170)
I dont have the audio buttons but have done the aux input mod and use a $3 BT adapter for streaming to my CD400.



I bought a$50 bluetooth unit (switchable from receiver to transmitter) from Jaycar electronics. Plugs into the aux input jack in the car. Phone picks this up and I can now stream music via bluetooth . Calls as well afaik.
If you are just after bluetooth phone calls, they also have these for about 25 bucks


meant the one Eric got from jaycar

[Eric SDV6SE]

meant the one Eric got from jaycar

I will try to post a photo of the unit I've got and get you a part number.

Cheers

Eric

[rangeyrover]

Hi All,
I've made some good progress with this.
The device accepts the steering wheel controls and changes tracks.
It works by the arduino reading the steering wheel controls then activating the next prev track switches & Play/Pause on the module.
I've also designed a pcb to make it a neater solution than my prototype.
So it's met my basic goals, this is V1 then.
https://i.ibb.co/30Sp9hS/941817badd8da51ddac16b428cd6c8c7.png (https://ibb.co/p34fBX4)
https://i.ibb.co/j8wDQT0/CD400-Bluetooth.png (https://ibb.co/HKPqbVw)
https://i.ibb.co/5YqsmrN/ff9d10be7eab98315657017cc61c8a10.png (https://ibb.co/6v6DzH3)

Also Kicad files:



148725
148725148725
New goals for V2:
Make it read the front buttons on the head uint.
Make the mic work
Use the mute function to make calls

[rangeyrover]

Hi All,I've made some good progress with this.The device accepts the steering wheel controls and changes tracks.It works by the arduino reading the steering wheel controls then activating the next prev track switches & Play/Pause on the module.I've also designed a pcb to make it a neater solution than my prototype.So it's met my basic goals, this is V1 then.https://i.ibb.co/30Sp9hS/941817badd8da51ddac16b428cd6c8c7.png (https://ibb.co/p34fBX4)https://i.ibb.co/j8wDQT0/CD400-Bluetooth.png (https://ibb.co/HKPqbVw)https://i.ibb.co/5YqsmrN/ff9d10be7eab98315657017cc61c8a10.png (https://ibb.co/6v6DzH3)Also Kicad files:New goals for V2:Make it read the front buttons on the head uint.Make the mic workUse the mute function to make calls

[loanrangie]

Hows the project going, still interested in the switch pack when you're done.

[rangeyrover]

If anyone wants to make this for their CD400 details are here.
GitHub - RangeyRover/Bluetooth-Streaming-Analogue-Controls: Bluetooth streaming module developed for a Land Rover CD400 for a Discovery 3. Will work with any Car Stereo with analogue steering controls (Resistive) where the ADC supply is not above 5V (https://github.com/RangeyRover/Bluetooth-Streaming-Analogue-Controls)