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7400 competition entry: Mathemagic – Mind Reader

Posted on Friday, October 26th, 2012 in 7400 contest, contest by DP

Mathemagic, mind reader or a decoder, you decide. This open 7400 competition entry bases it’s magical properties in a mathematical game of coding and decoding numbers in binary sequences.

The concept behind this is a BCD to 7-Segment decoder(IC7447). The unit and tens place of the number are in BCD. For example let’s consider the number 24

Number 2 4 – This in BCD would be 0010 0100. Thus this number would be found in sheet3 and sheet6. When you press these corresponding switches, the number would come up in the 7-segment display.

Build something that uses or abuses a logic chip and get amazing boards, tools, and other swag. The Open 7400 Logic Competition promotes awareness of the basic building blocks of modern circuits. Devious geeks ignited the computer revolution with discrete logic computers, what can you do? Details and entry form here.

Via the contact form.

This entry was posted on Friday, October 26th, 2012 at 9:00 pm and is filed under 7400 contest, contest. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “7400 competition entry: Mathemagic – Mind Reader”

  1. gsmith says:

    I’ve decided. Don’t give me any of this logic sciencey mumbo-jumbo! It is a mind reader.

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