Handheld Wireless LAN scanner

From Chaostreff Augsburg - Wiki

Contents 1 limitations of the AVRolus approach 2 idea for a new design 3 TODOs 4 questions

limitations of the AVRolus approach

• can only be used with 5V orinoco cards
• the orinoco card needs about 200mA at 5V = 1Watt -> will exhaust the battery quite fast
• no 802.11g/a support

idea for a new design

• compactflash wlan card?
• ARM7TDMI controller - available with internal flash, sram and USB device & SD/MMC controller
  • LPC2xxx from Phillips
    • available at Segor and CSD Electronics
    • costs about 15-20E
  • AT91... from Atmel
    • available at CSD Electronics
    • costs from 7 to 20E

TODOs

• user interface
  • I thought about adding bluetooth to the sniffer and using a cellphone java app to control the sniffer
• battery
  • Li-Ion
  • charger: MAX1811?
• power supply?
  • MAX1706
  • MAX710/711

questions

• is cardbus support possible?
  • a CPLD would have to do the DMA stuff
  • how many gates would be needed for this?
  • low-power CPLDs aren't that easy to get...