[ { "uart_name": "com1", "dev_node": "/dev/ttyS4" },
{ "uart_name":
"com2", "dev_node": "/dev/ttyS5" } ], "led": [ {
"led_name":
"user1", "dev_
node": "/sys/class/leds/user1" }, { "led_name":
"user2", "dev_node": "/sys/class/leds/user2" },
{ "led_name":
"user3", "dev_node": "/sys/class/leds/user3" },
{ "led_name":
"user4", "dev_node": "/sys/class/leds/user4" },
{ "led_name":