detect if temp sensor has just powered on and wait for first conversion
detect if temp sensor has just powered on and wait for first conversion

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