Timeline for To control the crossfade between 2 identical PWM LED dimmer modules, can a single dual gang potentiometer replace the 2 separate rotary controls?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 7, 2022 at 19:38 | vote | accept | shigginpit | ||
| Dec 7, 2022 at 19:30 | comment | added | shigginpit | Waiting to purchase them until I have a better handle on this, Jasen, so no pics. Could you elaborate a bit? my goal is to use one knob to shift between the 2 with the middle (preferably) being both are off; however, I'm settling for a blend of the lights in the middle (might be a cool effect) and I'll switch it off at the source. With that in mind, what would be the reason to invert the second? unless you're implying, I should wire them both to the same single gang pot & send the inverse value to one side and regular to the other? but in my mind, my proposed method sounds easier, doesn't it? | |
| Dec 7, 2022 at 19:25 | answer | added | Jasen Слава Україні | timeline score: 0 | |
| Dec 7, 2022 at 19:22 | comment | added | Jasen Слава Україні | video of internals here: youtube.com/watch?v=JGSzoa18_gY it uses a 555 to make a sawtooth and then (half) an lm358 to make PWM from that. | |
| Dec 7, 2022 at 19:06 | comment | added | Jasen Слава Україні | personally I'd be looking to modify the second dimmer to operate as the inverse of the first, can you add pictures of the inside of these devices? | |
| Dec 7, 2022 at 17:57 | history | asked | shigginpit | CC BY-SA 4.0 |