Pi 3 B+, 7" official touch screen and a Sense Hat query

Question

New here, but wanted to ask about the above.
My Pi 3 B+ is connected to an official &" Touchscreen display, which uses a double adaptor to provide power to the Pi and scren. This work fine.

However, if I connect a Sense Hat to the Pi, the Pi doesn't boot fully. The Sense Hat does light up though, showing a rainbow of colours.
I am presuming this is a power issue.
Do I need to supply power to both the Pi and the screen separately?

I am asking before trying simply because it would mean a bit of a fiddle to provide power to both, although I could do it. I just don't want to break anything.

Any thoughts?

Regards  Phil C

tlfong01 · Answer

Question

Still seeing the lightning flash when running script on the SenseHat,
  ...

Answer

Me too.  The yellow lightning comes and goes.  My power supply is not
  that good.  I am thinking of using separate power supplies, one for
  Rpi, another for SenseHat.

Using breakout board and ribbon cable

Now I am using both breakout board and ribbon.  This way I can access the GPIO pins easily.  I am thinking of not connecting all GPIO pins the the Sense Hat.  I am going to use separate power supply for it.

Sense Hat Rewiring Notes

Now I am rewiring the Sense Hat for separate power supplies.

References

1. Mounting Rpi Sense Hat and Polulu/AdaFruit IMU on Rpi

Pi 3 B+, 7" official touch screen and a Sense Hat query

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