# Adafruit RGB Matrix HAT to P10-s4-3535 panels

**URL:** https://forum.core-electronics.com.au/t/adafruit-rgb-matrix-hat-to-p10-s4-3535-panels/6922
**Category:** Support
**Created:** [4 December 2019 01:37 UTC](https://forum.core-electronics.com.au/t/adafruit-rgb-matrix-hat-to-p10-s4-3535-panels/6922 "2019-12-04T01:37:16Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![Zonared](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/zonared/32/3066_2.png) [@Zonared](https://forum.core-electronics.com.au/u/Zonared)
#### Post date: [5 December 2019 02:18 UTC](https://forum.core-electronics.com.au/t/adafruit-rgb-matrix-hat-to-p10-s4-3535-panels/6922/3 "2019-12-05T02:18:54Z")

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Hi Robin57159, thanks for your reply.

The power supply that is supplying the led matrix is a 4.5volt 40amp switchmode PSU:

 ![led_psu](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/c/c883a89a2ed31153e3a5cfd7f814c719c300027a.png)

This power supply connects directly to each panel using the three white plugs via the red&black cables. This was the supply that came with the three panels, along with its HD-D15 driver board, which works [but i don’t like it :)]

The raspberry Pi is being powered from a 5v 3amp USB power supply.

The Adafruit hat was running from a 5v 1amp supply via the DC input socket on-board (note: i dont know if this supply has to be the same as led matrix supply or not, i didnt try that but I can)

Just to be clear, the pi doesnt reboot or brownout. it sporadically pops up with a dialog box asking me if i would like to logout, which is weird. I can click cancel and return to my command terminal, but from that point forward commands i type dont make any changes to the led matrix.

Thanks again.

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