Test

--our output target
mon = peripheral.wrap("top")

--our update function
function update()
  local tab = sensor.call("right", "getTargetDetails", "-2,0,-1")
  return tab.Stored
end

--our graph declaration.  We use nil as the gradientTable parameter, so it will use the default red-green gradient.
graphInstance = graph.new(mon, update, "EU Storage", nil, 0, 600000)

while true do
  --update the graph
  graphInstance:draw()
  sleep(0.5)
end