I’m designing some cove lighting for a living room using a Raspberry PI and two addressable LED strips (WS2812B, 300 LEDs each).
I’ve got the lights and a prototype breadboard already set up, so I know the circuit works. What I want from this post is a sanity check on the circuit itself as well as any advice in making a better PCB. This is also my first time trying to make a Pi Hat.
With this project, I am trying to create a shield/hat in order to declutter as much as possible. I want to power both the LEDs and the Pi using a barrel jack so that I can avoid using the USB power cable.
My components are as follows. Apologies for the wonky links, I am still limited to 2 total links:
- 1x Quad Level Shifter
- project specs part #OP482
- I intend to use an ADA1787 instead
- 2x 3-pin screw terminals
- project specs part #CTB0158-3
- I intend to use this part instead:
- 1x 5.5mm x 2.1mm DC power jack
- I am hoping that this part will be acceptable:
- 1x 40-pin Raspberry Pi Header
- I am hoping that this part will work - I will need access to the GPIO pins for future switches:
I have a 5V/15A power supply that I am intending to use. I’m a little concerned about the possibility of frying the Pi with this much current (I think the hold current is 2.6A), but I don’t know how much a fuse would help me.
Thank you for the help!
rpi_ws2812_shield.fzz (34.1 KB)