I'm sorry I can't answer either of the previous questions, but I'd like to ask a quick question about injecting power on a long LED run. At injection points, is a power AND gnd really necessary? Why wouldn't I be able to inject power / raise voltage with just the + wire, with gnd at the end of the strip? This is a run of 800, 12V WS2815 LEDs
@Daniel__Haber_twitter Just like for the positive wire there will be a voltage drop over the ground wire along the strip, so by only injecting positive voltage you would only improve on half the total voltage drop. The voltage drop over the negative wire would even increase if you inject positive voltage into the positive wire, because the current will increase.
Anyway, regarding:
- https://github.com/FastLED/FastLED/wiki/Interrupt-problems
Can I assume that once FastLED.Show() returns, I'm good to receive serial data?
Hi everyone. I've got four esp32s driving separate LED strips, laid out to look like one display (each strip runs up the corner of a wall and then along the ceilings). I'm using painlessMesh to network them, which also gives me a common clock. Common clock means I can sync a common timebase on all of the devices, so if I do
fadeToBlackBy(leds, NUM_LEDS, 20);
leds[scale16(beat16(10, gTimebase), NUM_LEDS - 1)] = CRGB::Blue;on each, I basically have pixel perfect synchronization on each strip
So, this works, but it's kinda awkward to pass
gTimebase all the way down to every beat function I depend on. I'm curious what people think of the idea of a FastLED.setTimebase(...); function for this use case. Global timebase would still be 0 by default, so no breaking changes, but would be great for a use case like this
Hi. Anyone know if support for ucs2904 is on the cards anytime soon? Thanks Tim
@backus I'm just trying to clearly understand how you would envision it working. It's an interesting idea and leads to the question of if it could be a library thing or something better left to rolling yourself. Consider opening a new issue (I know it's not an issue but rather an interesting functionality suggestion) on github with the info you've provided so far and an example/sudo example. Could also post the idea to FastLED reddit group to see what others might think/suggest.
Using fastled with teensy 4.0, mocing fron teensy lc. Wanted to know if it was compatible with it (i2c): I had no problem on Teensy lc, but with teensy 4.0, i2c gets plenty of transmission error when .show(). Any idea ? Regards
@philippe488 See if this helps. If not post your question on the Reddit FastLED group with details about your setup. https://www.reddit.com/r/FastLED/comments/d9z2os/teensy_40_and_fastled_along_with_ws2811_ws2812_ws/?utm_medium=android_app&utm_source=share
Im trying to figure out how to merge fastLED patters to mirror on multiple pins
Im a little lost :-)
and with neopixel too
I also have a kik room #fastled
@urkel27 Glad you got it. Feel free to come ask questions on the Reddit group too. http://fastled.io/r
I know one of my upcoming task is to learn state machines. I'm looking to create a BLE controlled Teensy 3.2 with a HM-10 using some of the open source patterns at https://www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/. The issue is have so far is that some of the patterns never end, so there is no way to "interrupt" them unless state machines are used, i.e. colored bouncing balls pattern. Once I have the Teensy and HM-10 working efficiently, that will be my next goal.
I also created a Facebook community "FastLED and Neopixel"
i think i fixed it. yes i did
:]
thanks for your help meowcatluke,. meowcatluke: you're welcome
using FastLED.setBrightness(CRGB(255,255,255)); and dims all the pixels of the led
changing these values does nothing to make them any brighter.
only if i comment out the line of code FastLED.setBrightness(CRGB(255,255,255)); do the LEDS go back to full brightness.
Anybody know if fastled supports the esp32 wrover-b modules out of the box? I've been having trouble getting a simple blink sketch to run. Same code runs flawlessly on an esp32 wroom module (the esp32 huzzah board from adafruit). Is the esp32 pin mapping based on a specific esp32 module? If so, should I start to think about porting?
@drewandre I have only used the HiLetgo ESP-WROOM-32 ESP-32S. Try asking on the FastLED Reddit group as many more will see your question and hopefully someone there can help. http://fastled.io/r