Bitcraze Forums

Hello!

After reading this blog, I wanted to use WS2812B as LED with Crazyfliebolt.
I currently don't have the breakout deck like above article, so I directly tried to get VCC, GND and LED signal pins like attached.
However I noticed that we cannot get 5V from the pin of crazyflie Bolt (only 4.5~4.8V).

My questions are:
1. Do we need the breakout board for using external LEDs?
2. If we purchase the breakout board, wiring approach following will work property?

Regards,

The VCOM on the Bolt is powered using a step-down DC-DC converter set at ~4.9V. The output power from this is maximum 500mA and the system consumes ~100mA so at maximum 400mA left over for the WS2812B. Since it is a step-down it can only convert voltage down so at least 2 LiPo cells are needed for 5V output. In the picture you only have 1 cell but I think the WS2812B works with lower voltage as well so might still work, maybe with a bit uneven brightness though.

You do not need the breakout board. You should connect it to VCOM though and not VCC which is 3V and only 100mA max.

Thank you.

I connected it to VCOM and it lit up.
It's bright enough