Raspberry PI interface and GPIO ports

all this not sorted yet

GPIO and other ports: http://elinux.org/RPi_Low-level_peripherals

Raspberry/Arduino via I2C or serial link

Homemade PoE? check IEEE 802.3af. blue and brown/blue+white (unused) and brown+white (overvolting)

bcm2835.h: special and useful library http://www.airspayce.com/mikem/bcm2835/

Python and GPIO (source but fails to work), and pointers for Archlinux here

Pseudo digital-to-analog conversion via a dump RC (& python timings): http://www.raspberrypi-spy.co.uk/2012/08/reading-analogue-sensors-with-one-gpio-pin/#more-520

On-board hardware userful watchdog: http://blog.ricardoarturocabral.com/2013/01/auto-reboot-hung-raspberry-pi-using-on.html

Power

Add a capacitor to avoid brownouts (temporary voltage drop down that make the RPi reboot when hotpluggin USB devices).

Power the Raspi directly while keeping the polyfuse safety:

Screens

electronics/raspi/interfacing.txt · Last modified: 2013/11/13 16:00 by jim
 
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