Plans for Raspberry Pi In Car Project

Hardware Used

Project Box
Raspberry Pi (v3)
PMB Power Board http://rcbeacon.com/blog/?page_id=3946
WIFI usb module (Not needed with Pi3)
1.2AH SLA Battery

Hardware Additional Planned

Camera: Pi Camera, Pi Camera HDMI Extender boards, HDMI Cable
GPS: GPS USB Module (puck)
Engine Logging: ODBII Bluetooth adaptor, Bluetooth adapter

Direct USB: USB Memory Stick
Direct USB: USB Hub
USB HUB: Keyboard (then numeric keyboard... or maybe bluetooth?)
USB HUB: Wifi Dongle (Not needed with Pi3)
USB HUB: GPS Device
USB HUB: Bluetooth Dongle (Not needed with Pi3)
USB HUB: Mobuis Dashcam
USB HUB: USB Hard Drive?
Pi Cam
NFC Shield

Menu Feedback and Selection

Karl's BASH menuing
https://github.com/KarlMW/bash-ivr

Raspberry Pi GPIO general info and scripts

GPIO Info http://raspberry.io/projects/view/reading-and-writing-from-gpio-ports-from-python/
File System GPIO activation https://sites.google.com/site/semilleroadt/raspberry-pi-tutorials/gpio
WiringPi c Lib http://wiringpi.com/
GPIO info from raspberry pi org https://www.raspberrypi.org/documentation/usage/gpio/
GPIO Benchmarks http://codeandlife.com/2012/07/03/benchmarking-raspberry-pi-gpio-speed/

i/o for this project

Using this reference https://www.raspberrypi.org/documentation/usage/gpio-plus-and-raspi2/README.md

GPIO Port 4 for HOLD (setting as 1 sets GPIO 4 to 3.2v)

sudo su echo 4 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio4/direction echo 1 > /sys/class/gpio/gpio4/value

Audio Output

HF: Sound output of some sort to a small speaker (I2S?), also 3.5mm audio to car audio input. Hardware switch to turn small speaker off (for music play etc)