Frame Formats & Registers
Data frame format specification — simple format, JSON format, special character compatible format
Communication Protocol
The communication protocol is defined by built-in Lua scripts on the mainboard. Data is transferred to designated registers via serial/network interfaces, then processed by the script to drive canvas object changes.
Section Navigation
| Section | Description |
|---|---|
| Frame Formats & Registers | Simple format, JSON format, special character compatible format |
| Remote Commands | Print control, information query, template switching |
| Lua Scripts | Script purposes and use cases |
Basic Concepts
- Register: Data storage unit. Canvas objects (text/barcode etc.) can bind to registers; when data arrives, the object content updates accordingly.
- End Frame: All data ends with
\r\n, marking the end of one frame. - Script Enable: Before communication, the corresponding Lua script must be loaded and enabled on the mainboard.
Remote Commands
Remote command control — print control, information query, template switching, flash settings
Lua Scripts
Communication-related Lua script purposes and use cases