[2.10.10] Super Quick, Auto-Restarting AP

An access point that restarts once a day, 
* Happy Laptops
* No more interrupting people as much. 

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Simple Layout of Project

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Basic System Functional Flowchart

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College students are cheap, and when it works, they share. We share internet with the folks downstairs, its cheap, and we all benefit. The quirk is the wifi AP, its theirs and its rather lame.

Their Access Point routinely dies after a few days. 5 users is sometimes too much for it. To reset it we either stop by and ask them to reset it (which is bothersome for them as well as us) or literally flick a breaker off, wait 10 seconds, and turn it back on. Everyone has it happen once in a while, power cycle it and its back up and happy. 2-3x a week is just silly.

Both of these methods are *LAME* so i and came up with this monstrosity. It took all of 2.5 hours, while helping some intro to engineering design students with their line following bots for a class.
Hurray for multitasking.

(*img from wikimedia)

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1x ddwrt router
Purchased from the local recycling center for $25

Atmega 48 mcu & programmer
AVR ISP MK2 programmer + ghetto ide cable

Mosfet, led's, misc caps

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wrt54G AP (with ddwrt installed), and breadboard sitting atop.

(just checking physical device sizes)

Breadboard layout:
Atmega 48 microcontroller
5 green led's (binary clock), and 1 for seconds

(extra wires are for progammer)

Super intensely simple 'light pipes', made out of the casing from ethernet cable.

2nd picture, the 'pipes' are cut to size, hot glue used to fill light pipes as an optical medium
Double Check that DDWRT still works
Hey, it still works! (connected via ethernet)
Making it look less like a bomb, add a spray-painted metal plate for the binary clock,

Afix to case.

Add weather strips to hide uneven metal... Sure, that looks nothing like a doomsday machine

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Final Product:

attempting to make it look less intimidating proved to be moot. Whatever, it works. No one is ever using the net at 8am during the restart.


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Video of it operating at high speed to demo that it works

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i know there's a watchdog feature in DDWRT. No it doesnt work as well as physically just restarting it.
 Ive been playing with these thing for years.

is interrupting an AP routinley ok for the AP? probably not, however it was ~15 bucks from a local recycling center

I should make a python script to check uptimes and do a countdown or something...

Created by:
Dane Kouttron

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Rensselaer Polytechnic Institute 
Electrical & Electrical Power