I'm working on a driver board for a NeoPixel strip with 240 leds, that can be controlled with the Bluefruit LE Connect App.
Here is the BOM:
- 5V 10A switching power supply: https://www.adafruit.com/product/658
Adafruit Feather nRF52 Bluefruit LE: https://www.adafruit.com/product/3406
74AHCT125 Level Shifter: https://www.adafruit.com/product/1787
Adafruit NeoPixel Digital RGB LED Strip - Black 60 LED - BLACK (4m): https://www.adafruit.com/product/1461?length=4
470Ω Resitor
1000μF electrolytic capacitor
1N4001 Diode: https://www.adafruit.com/product/755
1. Does this circuit makes sense, especially the part that powers the Feather?
2. Is the diode overkill? I read somewhere to add it, but it did not explain why.
3. Can I still use the USB plug? (I guess not)
Any help is welcome.
J