pt 2 - diy Android Auto on Raspberry pi headunit, inc. hifi audio and backup Camera

Start with video #1 if you haven't seen it yet -
100% DIY Android Auto HU - replacing ...


Phew.  Finally close to finishing this project off.  In this video I start off by showing the final product just to show off everything my new diy head unit can do.  Then, I get into the details, starting off with the parts (again), the wiring schematics, then how I actually put it all together

** Full Parts List **
Official Pi 7" touchscreen ($70) -
https://amzn.to/2VEcNKG

Raspberry Pi B+ ($39) Make sure to also get a micrsd card to install the crankshaft OS if you don't have one already-
https://amzn.to/2C2q0Uq

10Amp 12V to 5V Power supply ($15) -
https://amzn.to/2VJ7sBB

Long USB Cable to run from Pi to your phone (This is the one I used... just make sure the one you use is high quality DONT CHEAP OUT ON THIS)($10) -
https://amzn.to/2LPSIfG

USB sound card (use this option if you have a standard amplifier with low level RCA Inputs) ($8) -
https://amzn.to/2LTZalQ

Stereo lapel mic (MAKE SURE ITS STEREO, MONO WONT WORK) ($15) -
https://amzn.to/2Az8irJ

If you want to use digital output (like I am), you'll need the hifi digi+.  ($35) -
https://amzn.to/2RzbdKG

If you use the hifi digi+ (which will offer the highest SQ), then you must use a usb mic instead of a stereo input mic.  You won't need the USB sound card anymore.  Here's a quality and reasonably USB mic that is proven to work combine it w/ a USB extension cable to get additional length out of it ($16) -
https://amzn.to/2R7DlVX

To control volume, you need a line level attenuator.  Here's a cheap one that i've used on other projects and I know works well ($9) -
https://amzn.to/2VzIiFN

To make phone calls, you need an external bt adapter.  Even though the pi has bt built in, it does not support hands-free profile (HFP), so you cannot use it to make phone calls.  Here's the one I am successfully using for both streaming music (A2DP) and phone calls (HFP) -
https://amzn.to/2C0Ml4S

12V relay board ($10) -
https://amzn.to/2Rv6ee6

GPIO breakout board ($21) -
https://amzn.to/2Rwdy9n

Backup Camera ($23) -
https://amzn.to/2LW6RZ6

Camera extension module (to run HDMI to rear of car - be sure to use a high quality 25ft HDMI cable - don't cheap out!) -
https://amzn.to/2Rxjij4

Anything else let me know!

• #people_blogs
• #raspberry_pi
• #android_auto
• #head_unit