{ "device" : { "name" : "MyPi", "type" : "ws281x", "leds" : 50, "colorOrder" : "grb", "gpio" : 18, "freq" : 800000, "dmanum" : 5 }, "grabber-framebuffer" : { "width" : 64, "height" : 64, "frequency_Hz" : 10.0, "priority" : 890 } }