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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
Great! It's good that you spotted that!
I've actually had this with those panels before (albeit only 4 of them!) - when the LEDs are full intensity they draw a whole bunch of power.
You could actually run the panels off of 5v I believe (but check just in case!) which should reduce the stress on the 3.3v regulator.
I guess you spotted this as it seems this was your post previously, but for anyone else looking it should be possible to modify the code posted at http://forum.espruino.com/conversations/874/#15844271 to allow you to use a Graphics instance on these panels