Flame MKII.
Added 2020-08-21 02:35:13 +0000 UTCI've replaced the pure random data flowing up the LEDs with a controlled alternation between bright and dim with minimum number of steps adjustable and a random element then added.
I've also added a "drama" variable to vary the difference between the sprites and the core of the flame. You can set it as a percentage value of intensity of the sprites, so that 5% would be very subtle and 90% would be a very bright sprite on a dim flame.
Subtlety is good. In fact I may just revert back to the sprite based on pure random data at a low level like 25%.
Now I just have to decide how convincing a slight height undulation would be, and whether the sprites should stop at the upper height or flow past it. I think a dim sprite flowing off the top of the flame should look OK.
Comments
My first flame effect on Arduino looked more like a light bulb burning out. Now I think it would be cool to have a regular light bulb that simulates a blow out then comes back on a couple seconds later. It would be just long enough to shake a fist at at it and tell it to go back on.
Jim
2020-08-21 23:35:12 +0000 UTCHere I am with my three LED 'pyramid mood' light and being happy with a PIC12F1572 doing a somewhat nicer sequence than the original unmarked 8-pin IC. And now your video makes me want to lay hands on one of these flame lights. Great video, great stuff!
Hagen
2020-08-21 22:23:20 +0000 UTCI think it may look better if there was a bias towards the lower LEDs, so the top one was lit less often.
Adam Pepper
2020-08-21 15:26:20 +0000 UTCA reasonably cheap noise generator that has been used for many years to generate flames is Perlin noise. Such as https://www.openprocessing.org/sketch/112601/#
Kim & Nix
2020-08-21 12:20:43 +0000 UTCWhewh! You keep coming up with more enhancements! Makes me speculate how long 'till it tidys the house and does the shopping.
2020-08-21 12:04:18 +0000 UTCnot the same :( but I ordered this to look at -> https://www.amazon.co.uk/gp/product/B07YWLWT8L?ref=em_1p_1_ti&ref_=pe_19532881_500166641
2020-08-21 09:03:29 +0000 UTCThis one looks more organic, maybe just a touch slower, or variations on the speed? I dont know programming so I know not what I ask.
Michael Thompson
2020-08-21 07:34:46 +0000 UTCThe other day I stripped down an optic fibre xmas tree with the synchronous motor and the printed spinning disk that gave the flashing display and colours, make me laugh how complicated the electronics would be to do the same thing. Nice programming Clive. I wounder if it would be better having more of the LEDs concentrated near the top to emulate a flame in a lamp. When I was in Louisbourg Nova Scotia the fort lamps they had used large seashells that had been scraped thin as the glass.
John Harrison
2020-08-21 07:13:00 +0000 UTCRobert Around that time, for fun I added an inverter to the screen output on my ZX81 it was not very good driving an old CRT screen white with black writing.
John Harrison
2020-08-21 07:03:54 +0000 UTCAny chance you could post the algorithm? Maybe as pseudo code?
Jeremy Impson
2020-08-21 05:53:28 +0000 UTC
