DashPi

A full vehicle dashboard application framework for the Raspberry Pi.

Requirements

Hardware

• Raspberry Pi 3 [$35]
• HifiBerry DAC+ RCA [$35]
• MicroSD Card - Class 10 At least 32GB recommended [$15]
• Mini-Box DCDC-USB Power Supply [$55]
• Mini-Box DCDC-USB Enclosure [optional - $4]
• Audio Amplifier with RCA Input - recommend Lanzar Mini MAX 1600W Amplifier [~$200]
• Amplifier cable kit - recommend BOSS Audio KIT10 [$18]
• RCA Ground-loop Isolator [$5 - $7]
• At least 2x 0.1mm pitch header pins

Software

• Raspbian Jessie with no GUI

See the docs folder for further information on system setup.

Installation

Power Supply Configuration

To configure the DCDC-USB power supply for automotive PC applications you will need to set the following jumpers:

• CONFIG jumpers
  • 0 OFF
  • 1 OFF
  • 2 ON
  • 3 OFF
  • 4 OFF
  • 5 ON
  • 6 OFF
  • 7 ON

This will configure the power supply for Automotive mode, 5V output, and a 5 second shutdown signal delay with a 60 second shutdown wait time. For more information on jumper configuration, see the manual.

If, instead, you want to use a 12V-to-5V micro USB adapter, like I did, omit the jumper in position 5. This will set the power supply for 12V output.

Basic Steps (OS-independent)

• Remove factory stereo head unit
• Install amplifier within cable-reach of Raspberry Pi
  • Connect wiring harness to factory speaker outputs
  • Connect constant power input to battery
  • Connect ground to nearby metal chassis mounting point
  • Connect turn-on wire to ignition signal from old head unit
• Solder header pins onto, at least, pins 13 and 14 of the HifiBerry DAC+
  • Warning: According to HifiBerry, this will void your warranty
• Put together Raspberry Pi, Raspberry Pi Touch Monitor, and HifiBerry DAC+
• Install DCDC-USB power supply
  • Connect constant power input to red input wire
  • Connect ground to black input wire
  • Connect ignition signal to white input wire
  • Connect black output wire to micro-USB cable negative
  • Connect yellow output wire to micro-USB cable positive
  • Connect two-pin remote power switch connector to pins 13 and 14 (BCM 27 and GND)
    • Most shutdown scripts use pins 5 and 6 (BCM 3 and GND) but these are used for configuration of the Hi-Fi Berry DAC+

Basic Steps - Raspbian Jessie

• Install stock Raspbian Jessie on RPi
• Update everything (apt-get, rpi-update)
• Install newer version of PulseAudio to fix drop-out bug (at least v6.0)
• Configure for use as Bluetooth A2DP sink with Super-Simple-Raspberry-Pi-Audio-Receiver-Install
• To install the shutdown script, run install_scripts/install_shutdown_listener.sh
• Install sfml-pi
• Build and install Dash Pi
  • cd dash_pi
  • mkdir build && cd build
  • cmake ..
  • make
• Configure RPi to launch Dash Pi on boot

Basic Steps - Raspbian Stretch

• Install stock Raspbian Stretch on RPi
• Update everything (apt-get, rpi-update)
• Install prereqs with install_scripts/install_prereqs.sh
• To install the shutdown script, run install_scripts/install_shutdown_listener.sh
• To set up bluetooth streaming, run install_scripts/install_bluetooth_raspbian_stretch.sh
• Reboot
• Build and install Dash Pi
  • cd dash_pi
  • mkdir build && cd build
  • cmake ..
  • make
• Configure RPi to launch Dash Pi on boot

Usage

TODO

License

See the LICENSE file for various licenses for code from the following projects which were re-used in whole or part for this project:

• BluePlayer [https://github.com/Douglas6/blueplayer] - Bluetooth A2DP and AVRCP Functions
• POTSBLIZ [https://github.com/long-exposure/potsbliz-src] - Bluetooth HFP Functions
• PyOBEX [https://bitbucket.org/dboddie/pyobex] - Bluetooth PBAP Functions

The primary project is licensed under the GNU GPLv3.

Acknowledgements

Most icons created by Alex Auda Samora from Noun Project. Used under Creative Commons.