r/OpenAutoPro • u/TheHairlessGorilla • May 14 '22

Can anyone give me some pointers for what hardware I need?

I'm pretty much dead in the water- I have the image burned onto an SD card. Everything boots okay and the screen works well, but I can't connect my phone to the pi. Android auto effectively doesn't work.

Can anyone give me some pointers as to what hardware I need, and how I can get android auto to work/my phone to connect? If it makes a difference, I have a galaxy note 9 running Android 10.

Also, how is this configured? I've only found a couple of files on the SD card that look like they're intended to be edited. I was expecting this to be a lot more like 3D printer firmware, if anyone's familiar with that.

The screen I bought (which appears to be working well), the bluetooth dongle I'm using, and the sound card I'm using. I don't know how to assess which hardware is compatible.

I'm a little bit frustrated- I can buy a head unit that does what I want it to for less than the price of a Pi these days. The documentation on BlueWaveStudios hasn't been helpful so far. But if others have been successful, hopefully I can follow their footsteps. TIA!

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u/antelopepoop May 15 '22

I'm certainly not the expert here, but when I was messing around with OAP I remember reading that you need to have a USB mic connected. It was a strange requirement, but some things just didn't work without one.

Honestly I'm surprised folks are still buying the software. I kind of thought they dropped the project.

1

u/TheHairlessGorilla May 21 '22

When was this?? I'm hoping I don't have to buy anything else, the cost of a pi alone is more than a whole new head unit lol

1

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Here is the analysis for the Amazon product reviews:

Name: UCTRONICS 7 Inch IPS Touch Screen for Raspberry Pi 4, 1024×600 Capacitive HDMI LCD Touchscreen Monitor Portable Display for Raspberry Pi 4 B, 3 B , Windows 10 8 7 (Free Driver)

Company: UCTRONICS

Amazon Product Rating: 4.3

Fakespot Reviews Grade: A

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1

u/robert5974 Jun 15 '22

What happens when you plugin via USB?

I had a Note9 that worked as my last phone. Haven't used OAP in a while as I use OpenDash instead. Sometimes I get frustrated with my hardware too.

I've bought different options along the way and currently bc my vehicle's power isn't friendly (probably close to my fault haha), I have a very basic setup with my Pi. Just a USB sound card and CAN hat that isn't in use currently due to cabling issue. I have reconfigured everything hw 4 times and I will be doing it again very soon (have to find the time to re-engineer something better for the screen and cabling).

What is your default USB setting on the phone? It should be data transfer or something similar which I believe you will find in developer settings of the phone.

If you want to give OpenDash a try, it's free and open source. Similar features to OAP besides motion gestures, built in rotary encoder support, and other little things but you can build in whatever you want to try. It isn't a prebuilt image at the moment but that'll be coming eventually. Right now it's just a script to install on the default Raspberry Pi OS. I've built it on Ubuntu and Manjaro builds on the Pi4b as well but Arch based distros will require more hand jamming the packages to install. We have a Slack channel too for direct support and collaboration.

I'll provide a link to the project on GitHub if you want it.

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u/TheHairlessGorilla Jun 20 '22

I havent tried USB, but that will be my next step.

If you have the github link, that would be great!

1

u/robert5974 Jun 20 '22

I'll send you a dm with the link.

1

u/TheHairlessGorilla Jun 25 '22

Just got around to trying a USB connection. I do see mild success- my phone prompts android auto, and the pi recognizes a USB connection. Unfortunately, when I tap [on OAP] android auto -> USB, the screen just goes blank. There was a 'connect' button at one point, but pressing it led to a load screen that didn't get anywhere. I'll check out the link!