9 replies to this topic

[Omar (OZ)]

I hope you guys find this useful, I think it should help some of you that are doing POV projects. Wikipedia schematic: http://en.wikipedia....rlieplexing.png My Fritzing schematic is attached below. In the video I use this code in the program class. My Video: Video which I learned this from (obviously not mine): EDIT: Updated code! It has new methods to make new patterns! Thanks

Attached Files

•  NetduinoCharlieplexingLayout.png   17.99KB   82 downloads
•  CharlieplexLEDs.zip   146.26KB   61 downloads

[Chris Walker]

Omar, Thanks for posting this. I have only seen Charlieplexing with .NET MF once before. Nice! As for a new type of port, have you looked at TristatePort? Chris

[Eric Burdo]

TristatePort?

I've never seen that... I'll have to look into it.

[Omar (OZ)]

As for a new type of port, have you looked at TristatePort?

Chris

Wow I had no clue that class was there! To set a tristate port as input (like having an InputPort) do I do "port.Active = false"?
I have to update this code now.

[Chris Walker]

Wow I had no clue that class was there! To set a tristate port as input (like having an InputPort) do I do "port.Active = false"?

Precisely.

Chris

[Omar (OZ)]

Precisely.

Chris

Will .Write(false/true) override the .Active = false? or should I first write .Active = true;?

EDIT; I got it now. this is really cool, I think its more efficient now.

[Chris Walker]

Will .Write(false/true) override the .Active = false? or should I first write .Active = true;?

With TristatePorts, you should write ".Active = true;" to switch from input to output.

Chris

[Omar (OZ)]

With TristatePorts, you should write ".Active = true;" to switch from input to output.

Chris

Thanks for the help, I updated the code and now it works way faster! Now all the LEDs can be on at the same time with no visible flicker.

[Chris Walker]

Thanks for the help, I updated the code and now it works way faster! Now all the LEDs can be on at the same time with no visible flicker.

Nice!

[Michel Trahan]

Now I understand why the tristate ports exist in the first place Thanks ! If I understand correctly your code, you are missing the ability to turn on with no time limit, and one to turn off later on, which would be needed for the digital clock or do you turn on a pattern for 1 second at a time (if you wanted one with seconds) ? Meaning, you code is blocking no ? you have to wait for it to be done to move to another one. Say turn on a pattern, do something and when done turn to another pattern. Just a thought