I could use a little guidance on how to wire up a 5m 12v neopixel WS2811 strip. I plan to drive the LED strip with either a feather M4 or the Metro express M0 board. I have a stockpile of TIP120 transistors and a 6A 12v power supply. This newbie just needs a little help with connecting all these.
Thanks in advance.
driving a 5 m 12v neopixel strip
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- dastels
- Posts: 15656
- Joined: Tue Oct 20, 2015 3:22 pm
Re: driving a 5 m 12v neopixel strip
12v NeoPixels? Care to post the link to those?
Dave
Dave
- jpspoonhower
- Posts: 13
- Joined: Sat Mar 30, 2019 11:34 am
Re: driving a 5 m 12v neopixel strip
Addressable WS2811 Flex Silicone LED Neon Light DC12V Strip Light Waterproof Soft Belt Name Board Building Home DIY Rope Lamp
https://www.aliexpress.com/item/4000017 ... 4c4dbGvmS1
https://www.aliexpress.com/item/4000017 ... 4c4dbGvmS1
- adafruit_support_bill
- Posts: 88089
- Joined: Sat Feb 07, 2009 10:11 am
Re: driving a 5 m 12v neopixel strip
We don't have any experience with those. It looks like you will need a 12V/6A power supply. And probably a level shifter to shift the 3.3v signals from the M4 up to 5v for the strip.
https://www.adafruit.com/product/4537
You'll need to ask your supplier for clear documentation on the pinout for the strip. Looks like maybe red for power and white for ground? But it is best to make sure since it would be an expensive mistake to reverse the polarity.
https://www.adafruit.com/product/4537
You'll need to ask your supplier for clear documentation on the pinout for the strip. Looks like maybe red for power and white for ground? But it is best to make sure since it would be an expensive mistake to reverse the polarity.
- jpspoonhower
- Posts: 13
- Joined: Sat Mar 30, 2019 11:34 am
Re: driving a 5 m 12v neopixel strip
You all can ignore my original post. I decided to just have 2 separate power supplies. I seems to me to be easiest
- adafruit_support_bill
- Posts: 88089
- Joined: Sat Feb 07, 2009 10:11 am
Re: driving a 5 m 12v neopixel strip
Be sure to connect the grounds of the two supplies together, since the ground will serve as your voltage reference for the control signals.
Please be positive and constructive with your questions and comments.