The default configuration in Anduril sets the ceiling to the highest regulated level, which on most models is level 125 of 150. This can be changed to whatever you want though, and regardless of the value it uses, true turbo is still available by doing a double click while the light is on.
I’ve heard a few people report that, but I’m not sure what exactly causes it. The only time I’ve seen the lowest level flicker was on the first FW3A prototype, and swapping out a 7135 chip fixed it. I haven’t seen any flickering on any of my Fireflies lights though.
Another way around it is to set the lowest level a bit higher. Using level 3/150 should work.
To configure the ramp to go from 3/150 to 150/150…
- Turn the light on.
- Click 4 times.
- Light blinks once, then stutters. Click 3 times during the stutter to set the floor to 3/150.
- Light stops, pauses, blinks twice, then stutters. Click 1 time to set the ceiling to 150/150.
Then just wait for it to fall out of ramp config mode.
The stepped ramp also has a third option, to set the number of steps.
It’s 150 levels, not 250. Same as Narsil. This number was chosen because Tom wanted the full ramp to take 2.5 seconds from one end to the other, and the light’s timer runs at 62 fps (0.016 ms per tick), so that works out to about 150 frames or 150 steps.
I’m still trying to find the reason why some units flicker on the lowest level and some don’t. It may be that one of the 7135 chips isn’t quite right, or maybe there’s some electrical noise somewhere causing interference, or maybe things were flashed with the wrong fuse values, or maybe there’s some sort of weird timing interaction between the PWM cycle and the ADC cycle, or … I don’t know. But I haven’t been able to make any of my Fireflies lights flicker like that, so I haven’t been able to test theories.
I have seen some odd behavior on the aux LED board though, during specific parts of the ramp. So I think there may be some sort of feedback going on which is weak enough that it only affects the most sensitive parts at only a few specific levels. But I don’t have an electrical scope to look at the behavior of that in detail.