Well, this is my first steps into led things. I have sooooooo many questions, well so many
I bought esp32 i install the newest version of wled indeed. I have a 5m of FCOB WS2811 IC RGB 720led/m. it light up i can change the effects, but i cant have a SOLID color and its always flashing. I cant select the color a want but all the color are activated. I have no idea of how manage that !
im on D2 pin on my ESP32. I have no freaking idea of what setting to put. note my esp32 are on 5v
If you look in the KB (Knowledge Base, a great source of WLED info) link provided you find a further reference: LED Levelshifters with a good explanation.
TLDR:
Addressable LEDs use a 5V data signal (regardless of their power supply - 24/12/5 Volts).
The ESP’s used by WLED all run at 3.3V (again regardless of their ability to use 5V or higher).
The levleshifter takes the 3.3V data signal and “shifts” it up to a 5V signal that can be used reliably by the LEDs.
I 2nd the vote for 74AHCTxxx devices - simple reliable and cheap.
The other potential issue to watch for is the need for a common ground between your LED power, ESP power and the LEDs.
the issues he got are related to the powerinjektion not present at the END and at more then 300LED present
he needs to get the Voltige and Ground also at least every 300leds
REAL leds → not as COB got 3leds per chip WS2811
SIR @MrLED Configer FOR TEST only 50LED CHECK the COLOR of the Strip Did you got the Right one if you check red in App
this may also get you in trouble with the DATA sending and your issues
I Personly discoverd if the Strip is within 1feet(30cm) to the Port no levelshifter needed
but recomended
Im a right saying it must go between my esp32 and the led strip ? hehehe
The most frustating thing whit this, there is no video i watched on youtube explaining this. guys your are amazing.
To answer one of you concerning my ground, they are all plus together, with a 3 slots wago, power supply + esp32 + LED strip.
By the way guys, is there a place in the KB where explain every setting in wled app ?
Finally i can’t understand something with COB strip. if i bought a 720led/m strip a 5m will be (720x5) right ? but when i go to led preference i have to put 100 to led lenght (i try a lot before knowing that)
Once again guys, i really appreciate your interaction
There are 720LED per m but they’re grouped together, from WLED’s point of view one cuttable segment is one LED.
Specs tell you e.g. 20 IC/m, total 100
The IC you picked (74AHCT14) will work fine for a levelshifter, however it doesn’t match any of the typical wiring diagrams/schematics in the KB as it’s a Hex Inverter IC.
If you need one, here is a wiring diagram that will work:
OK, the link you posted was for a 74AHCT14 IC, just the chip by itself.
You’ll need to solder that onto a small piece of perfboard so you can attach wires for +5V, ground, Input and Output.
Here’s the same wiring diagram, but in a different fashion that matches the actual chip you’ll get:
omg (after that, nothing can stop me) HAHAHA tell me i ordered a batch of 74AHCT125 i will receive them later this week. so i guess it wont be the same wiring right ?
