Difference between revisions of "Paul's Passcode Contest Entry"

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{{Infobox Project
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|ProjectTitle=Paul's Passcode Contest Entr
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|ProjectStatus=Inactive
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|StartDate=9/01/2009
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|EndDate=9/29/2009
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}}
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= Overview =
 
= Overview =
== TODO List ==
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=== Summary ===
* Find some better PNP transistors that I can either attach a heatsink too, or have a better current rating than my current ones.
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This is my entry into the Passcode contest, I am mostly doing this for fun and I doubt it will have any practical application in the end.  Essentially I am creating a kind of digital combination lock with a VFD display.  Part of the display is going to revolve around a 3v analog meter.  It essentially moves a needle up and down (or depending on how it is oriented, left and right) as the voltage varies from 0 to 3v.  By wiring up a potentiometer to an analog input on my arduino and to the 3v meter, I can have a knob that moves the needle over a row of numbers and then when the user pushes a button I can record the number associated with the value of the potentiometer.
* Print out a new background for the analog 3v meter.
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 +
That is the first half of the lock, which is really simple and straightforward.  To make it a little more complex and give it a bit of something to show off (and truthfully to play with my VFD) I am going to see if I can work out a way that when you select a number with the Potentiometer / button / 3v meter setup, it will display the numbers you have selected, separated by periods.
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So an example operation:
 +
# Turn potentiometer to 1
 +
# Press the "Select" button
 +
# The number 1 appears on the VFD followed by a period.
 +
# Press the clear button, the number 1 goes away.
 +
# Turn the potentiometer to 13 & select
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# The number 13 appears on the VFD followed by a period.
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# Turn to 21 & select
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# VFD displays: 13.21
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# go to 4 and... VFD: 13.21.4
 +
 
 +
Maybe at some point I could incorpate other features into the lock to make it more of a game, but for now this is my current plan.
 +
 
 +
=== Project Manager ===
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[[User:Paul|Paul]]
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=== Contributors ===
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* [[User:Traylerphi|TP]] - Helped with how to use transistors
 +
* [[User:Craig|Craig]] - Assisted by being someone to bounce ideas off of.
 +
 
 +
= Project Status =
 +
A quick summary of the project's current status. The widget has been programmed and the case is being painted. Etc.
 +
 
 
== Parts involved with this entry ==
 
== Parts involved with this entry ==
 
* [[Arduino]] w/ Protoshield
 
* [[Arduino]] w/ Protoshield
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* [[Wikipedia:Potentiometer|Potentiometer]]
 
* [[Wikipedia:Potentiometer|Potentiometer]]
 
* [[Wikipedia:Push_button|Push Button]]
 
* [[Wikipedia:Push_button|Push Button]]
 +
 +
== TODO List ==
 +
* Find some better PNP transistors that I can either attach a heatsink too, or have a better current rating than my current ones.
 +
* Print out a new background for the analog 3v meter.
 +
 +
= Project Updates =
 +
 +
== None Yet ==
 +
 +
= Links =
  
 
[[Category:Passcode Challenge]]
 
[[Category:Passcode Challenge]]
[[Category:ActiveProject]]
 

Latest revision as of 15:57, 12 November 2009


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Hive13 Project
Paul's Passcode Contest Entr
Status: Inactive
Start Date: 9/01/2009
End Date: 9/29/2009


Overview

Summary

This is my entry into the Passcode contest, I am mostly doing this for fun and I doubt it will have any practical application in the end. Essentially I am creating a kind of digital combination lock with a VFD display. Part of the display is going to revolve around a 3v analog meter. It essentially moves a needle up and down (or depending on how it is oriented, left and right) as the voltage varies from 0 to 3v. By wiring up a potentiometer to an analog input on my arduino and to the 3v meter, I can have a knob that moves the needle over a row of numbers and then when the user pushes a button I can record the number associated with the value of the potentiometer.

That is the first half of the lock, which is really simple and straightforward. To make it a little more complex and give it a bit of something to show off (and truthfully to play with my VFD) I am going to see if I can work out a way that when you select a number with the Potentiometer / button / 3v meter setup, it will display the numbers you have selected, separated by periods.

So an example operation:

  1. Turn potentiometer to 1
  2. Press the "Select" button
  3. The number 1 appears on the VFD followed by a period.
  4. Press the clear button, the number 1 goes away.
  5. Turn the potentiometer to 13 & select
  6. The number 13 appears on the VFD followed by a period.
  7. Turn to 21 & select
  8. VFD displays: 13.21
  9. go to 4 and... VFD: 13.21.4

Maybe at some point I could incorpate other features into the lock to make it more of a game, but for now this is my current plan.

Project Manager

Paul

Contributors

  • TP - Helped with how to use transistors
  • Craig - Assisted by being someone to bounce ideas off of.

Project Status

A quick summary of the project's current status. The widget has been programmed and the case is being painted. Etc.

Parts involved with this entry

  • Arduino w/ Protoshield
  • Itron FG95H1 VFD
    • I need at least 7x PNP transisters that can withstand 12v current coming from an ATX power supply. I picked up some cheap radioshack ones, one burnt out and another burnt my finger... I think I need something I can attach a heat sink too.
  • Analog 3v Meter
  • Potentiometer
  • Push Button

TODO List

  • Find some better PNP transistors that I can either attach a heatsink too, or have a better current rating than my current ones.
  • Print out a new background for the analog 3v meter.

Project Updates

None Yet

Links