Mechanical Hit Counter

Mechanical Hit Counter

Mechanical Hit Counter 2

Here’s a cool ethernet-enabled mechanical hit counter. It seems kind of over-powered using a relay but this can be a great source of information for similar applications.

So, when you ping salem, you’re actually hitting my firewall, which redirects ICMP type 8 (Echo Request) so the board, whose internal address is BX decodes the ping request and asserts a TTL output high for 50ms. This turns on the transistor, which fires the relay, which cycles the power, which increments the counter. Then, the webcam takes a picture of it every 5 seconds and stores the image in the www directory. Voila!

via digg

2 Responses to Mechanical Hit Counter

  1. girrrrrrr2 says:

    what happenes if you get past… the max of the counter…

  2. Izl says:

    i think we should just stick with digital counters, though that is a brilliant idea

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