Jump to content

Greetings from the Chicago area

Recommended Posts

Just saying "hi".


I've had my launchpad sitting in its box for too long and I hope to get some soft of project going over the winter. My current schemes involves making a variable power flash controller but time will tell whether I stay on that track.


My electronics background is not very extensive (guitar effects pedals, simple circuit troubleshooting, etc.) and my general microntroller experience is limited to basic Arduino sketches (though I have done a fair bit of C coding in my day so I'm not too worried on that front).


Thanks for having me,


Link to post
Share on other sites

The plan is to achieve variable power via the flash's "quench" pin in 'TTL' mode.


When the X (center) pin is grounded the flash fires and if/when the quench pin is grounded the flash stops firing. By sensing the triggering of the flash and the use of a variable delay to quench the flash you get variable output.


The plan is to use this in to allow finer grained adjustments (via a knob or +/- buttons) than are available in 'Manual' mode. Most flashes only do full stops (halving the power at each step), some only go down to 1/16 which is still kinda bright at close distances and others don't have manual control at all (these are "all or nothing").

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...