Worklog Crankshaft Android Auto Unit

Discussion in 'Other' started by The Next Guy, Nov 4, 2019.

  1. The Next Guy Sun Dried Cases .

    Joined:
    Feb 28, 2017
    Messages:
    91
    Likes Received:
    131
    Location:
    Washington State
    Portables:
    Melted in the Sun
    I've been working on an Android Auto head unit. I'm using an RPi 3 to drive a 7" touchscreen over HDMI. Im by no means attempting to make this the smallest unit, just something functional. As if right now it works 100%. What I got for features:
    • Uses Crankshaft to connect to Android phone with maps.
    • Has 2 desperate 12V to 5V regs, one for screen, one for the pi.
    • I2S audio out. Chip supports 192Kbps audio.
    • Has a microphone crudely slapped in.
    • Has dedicated USB port for the phone.
    • 7" Touchscreen for interfacing.
    Here are some pictures of my horrid soldering job and it in operation:
    20191103_224458.jpg 20191103_224342.jpg
     
    cheese likes this.
  2. cheese the tallest memer in town Staff Member . . .

    Joined:
    Mar 2, 2016
    Messages:
    2,490
    Likes Received:
    2,214
    Location:
    Florida
    I've been looking into doing something similar but I'm gonna do all custom software so I can have more granular control. Have you tested it in car? That would be some neat pics
     
  3. The Next Guy Sun Dried Cases .

    Joined:
    Feb 28, 2017
    Messages:
    91
    Likes Received:
    131
    Location:
    Washington State
    Portables:
    Melted in the Sun
    Not gonna lie but the case is definitely janky. It's from a cheap 7 inch screen but the screen actually used in the project is not the same. It just so happened that the screen fit perfectly upside-down. Version 2 is gonna have a completely different case, probably 3D Printed entirely.

    It's probably also gonna have a combined cable with tentacles at the end for USB, Audio, and power.
    20191108_154847.jpg
    As a bonus, the output from the I2S amp is indistinguishable from my G8 Quad DAC and also much louder.
     

Share This Page

Loading...