reinstate display buffer on Spark (untested)
reinstate display buffer on Spark (untested)

BrewPi/firmware,BrewPi/firmware,BrewPi/firmware,glibersat/firmware,BrewPi/firmware,BrewPi/firmware,BrewPi/firmware,glibersat/firmware,etk29321/firmware,glibersat/firmware,etk29321/firmware,glibersat/firmware,BrewPi/firmware,etk29321/firmware,glibersat/firmware,etk29321/firmware,glibersat/firmware,etk29321/firmware,glibersat/firmware,etk29321/firmware,BrewPi/firmware