On 11/02/17 06:16, Alastair D'Silva wrote: > By the way, if you do an onewire LED driver, the feature I adore most is >> synchronous control over a whole bus. So multiple LED units can be pre- >> programmed to dim in a controlled fashion starting at a single point in > time. >> You had to implement a new command similar to "Convert T" to achieve this. >> That would break any existing driver but is extremly simple to implement > in >> your own driver (and the simultanenous code, of course). > That sounds like a great idea, thanks. > > These are the commands I have implemented currently: > ALL_OFF (sets all the channels on the device off, maybe a > candidate > for a simultaneous command?) > COUNT_CHANNELS returns the number of available channels to the master > SET_CHANNEL fades a channel to a specified RGBW value over a > specified time > GET_CHANNEL gets the current RGBW value of a channel, and the > fade time remaining > > It should be relatively straightforward to add a COMMIT command which only > starts fading the requested channels once received. > I've done some (not yet published) work on MoaT (another custom slave) to add some LED PWM'ing capabilities. It have been on pause lately though, but the prototype is lying on my desk and have been fading a LED strip up and down for a few months now.
Anyway, my prototype has support for the following settings/modes: * Direct PWM duty cycle control (for setting a static value) * "Breath" / ramp / flash mode: Fades back and forth between two min/max values, with adjustable step size (how much to inc/dec the PWM output), step duration (how long to wait between each inc/dec), and hold duration (how long to wait at min/max). With zero step duration it's just flashing between min/max. * Repeat mode: same as above but just repeats the specified number of times. Useful for i.e "flash 10 times then stay off" (or on, configurable). This gives quite a few parameters to control for each channel though, could perhaps be simplified or improved.. I had the same idea about a "master" control, can probably be very useful indeed! Well, just wanted to throw it out there.. Perhaps it can inspire some good ideas, and perhaps that can inspire me to get back on working with it :) /Johan ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
