XO Peripherals: Difference between revisions

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** LCD controller
** LCD controller
==The 25 dollar USB measuring unit and sensors==
==The 25 dollar USB measuring unit and sensors==
see: [[User:ZdenekBroz/devices Technical specification]]
see: [[User:ZdenekBroz/devices|Technical specification]]

==The 50 cent AM radio receiver==
==The 50 cent AM radio receiver==
* MK848
* MK848

Revision as of 20:11, 14 October 2007

Peripherals Overview:

The 10 cent O'Scope Adaptor

see: Oscilloscope adaptor

The 25 dollar BioSign/TeleHealth

see: TeleHealth Module

The 100 dollar Projector

  • Mary Lou may already have a design for this --DyD
  • Ultrabright LEDs
  • High resolution, high colour LCD
  • Diverging Lens?
  • USB to LCD processing ICs
    • USB micro controller
    • USB to digital graphics converter
    • LCD controller

The 25 dollar USB measuring unit and sensors

see: Technical specification

The 50 cent AM radio receiver

  • MK848
  • Analog processing for control of tuning cap
  • Tuning cap
  • Ferrite
  • Coil
  • USB powered

The 1 dollar AM radio transmitter

  • Crystal or Ceramic Resonator
  • audio transformer for modulation
  • USB powered

How to do it

  • Via an AVR micro controller with USB, ADC, and/or DAC
    • avr-gcc, avr-libc and avrice
  • Via the 5v@500ma offered per USB port, with a total of 1A
    • Soft limit via power rail; it is not necessary to follow proper USB 2.0 protocol and/or complete a USB handshake
  • Via the mono mic-in/stereo audio out, see Audio hardware
  • Via the unused channels on the AD188 chip
  • Via the Measure / Oscilloscope Activity

Other Pages