curl --location --request GET 'https://open-cn.vnnox.com/v2/device-status-monitor/screen/monitor/' \
--header 'AppKey;' \
--header 'Nonce;' \
--header 'CurTime;' \
--header 'CheckSum;'
{
"displayDevice": "LED",
"brightness": 50,
"envBrightness": -1,
"height": 50,
"width": 100,
"sn": "2YHA12706N1A10049941"
}