Novastar H Series Api [ ORIGINAL ]

CMD: 0x21
Data: 0x00 (off) / 0x01 (on)
Blackout ON: AA AA AA 03 21 01 23 BB BB BB

If you have an 8K source driving multiple H9 units, you must crop the source. novastar h series api

Method: set:cropping


  "jsonrpc": "2.0",
  "method": "input/crop",
  "params": 
    "token": "session_token_abc123",
    "x": 1920,
    "y": 0,
    "width": 1920,
    "height": 1080
  ,
  "id": 6

The H Series web server accepts GET/POST requests. Useful for high-level control and status dashboards. CMD: 0x21 Data: 0x00 (off) / 0x01 (on)

Commands rejected:

Parameters not applying:

Firmware update failures:

SEND$ = "SIn 1\r\n";
TCP_CLIENT_SEND(ClientSocketID, SEND$);

CMD: 0x01
Request: AA AA AA 02 01 03 BB BB BB
Response: AA AA AA 02 81 83 BB BB BB (where 0x81 = command + 0x80) "jsonrpc": "2

The NovaStar H Series API offers reliable, low-latency control for LED video processors. The ASCII TCP protocol is best for real-time show control, while the HTTP API suits status monitoring. Integrators can confidently script input switching, preset recall, and layer management, enabling seamless inclusion into larger AV systems.