Latest Version 0.8a - 2nd Dec 2007
I've just uploaded a simple, proof of concept logic simulator
(Latest version linked to here - http://scratch.mit.edu/projects/SimpleScratch/61841 )
I intend using it to teach Year 6 pupils the basics of logic gates and then moving up to wiring a full-adder before they get into the QCA Control and Monitoring Unit!
(I'm having a go at teaching them binary this week first so I've got another week to get this project up and running properly!)
Any comments/suggestions/ideas would be welcome.
My thoughts are to make the blocks, grid snappable.
Maybe introduce more complex units such as flip-flops and adders???
Maybe a pulse train generator???
Needs to be downloaded to move the blocks around
Last edited by SimpleScratch (2007-12-02 17:09:44)
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If you are teaching binary, they might find my binary counter amusing:
http://scratch.mit.edu/projects/kevin_karplus/2162
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V 0.4a available (see 1st post or latest post for latest version)
New features
- The units snap to a grid.
- Includes AND,OR,NOT,XOR and NAND gates
- Clicking on gate changes its physical input lead configuration to avoid having to make up lots of connector types
- Feedback connectors supplied for flip-flop type circuits
- Heartbeat system used to show whether circuit is in a running state - if no Heartbeat flashing slowly then user needs to click on Green flag again.
- Size of units can be reduced by changing size variable in stage script if you want to get more units onto the stage
Please report any bugs/ideas here.
regards
Simon
Last edited by SimpleScratch (2007-11-19 14:50:50)
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V0.5 available (Latest version available via 1st post)
Changelog
Bug fix
- NAND gate worked like AND gate :-( - OK Now :-)
New Feature
- NAND gate has 3 input wiring states so it can also work as a NOT gate - just click on it 3 times to see what I mean.
regards
Simon
Last edited by SimpleScratch (2007-11-19 14:52:01)
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V0.8 available here - http://scratch.mit.edu/projects/SimpleScratch/56969
New Features
- Gate appearance changed
- Connector type added to allow for 1/2 adder type configurations
- LED added (Clickable to change to a double LED for 1/2 adder type configurations)
- Push On/ Push Off switch added (Click on black button to push switch on.off - click on blue or red supplies to change button from Push off type to Push On)
- Slider introduced to change size of items.
regards
Simon
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V0.8a available
http://scratch.mit.edu/projects/SimpleScratch/61841
Only change is that its been compiled in Scratch 1.2 and you can now move the gates and other items around online as well using a new feature of Scratch 1.2 :-)
regards
Simon
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