General Newbie question here.

General Newbie question here. Got everything working great and Jason Coons code is awesome, but now time for engineering advice.

Doing a direct wire to 450 LED’s (yes that part works), but clearly this should not be the correct way as I have no relays, resistors, or anything else.

Currently just a 300w 6v 60a, a 6v 3v step down, a ESP-12E NodeMcu Dev, and WS2812Bs.

What else, if anything should I inappropriate into this?

Thanks! Everything will likely work fine, until it doesn’t. :slight_smile: The power supply voltage or data wire resistance could change, etc.

I would start with Adafruit’s best practices (data wire resistor, large capacitor between 5v and GND): https://learn.adafruit.com/adafruit-neopixel-uberguide/best-practices

Then I would consider adding a 3.3v to 5v level shifter (SN74HCT125N or SN74HCT245N) on the data line.

Ahhhh… Okay. So has anyone made a PCB stencil board to include the 74HCT125N, AMS1117-3.3 DC Voltage Regulator Step, etc? I was thinking of making one but if someone already has.

No voltage regulator, but I make these: https://www.tindie.com/products/jasoncoon/wemos-d1-mini-esp8266-led-and-level-shifter-shield/

@Jason_Coon Awesome! I have to start ordering from you! Now, I have to get a 3D printer…

It doesn’t hurt to add the odd fuse, to be honest I don’t normally bother, but it’s a good idea

@Jeremy_Spencer Sorry for my engineering newbie question, but what is an odd fuse?

Sorry, just an inline fuse, poor choice of words. They’re readily available for cars…

@Jeremy_Spencer OHHH… I was like searching the web thinking what the hell is a odd fuse. lol