labelwriter / core/src / build550LabelIndex
Function: build550LabelIndex()
build550LabelIndex(
index):Uint8Array
ESC n <index> — Set Label Index. 2-byte u16, little-endian.
The 550 status frame echoes the label index back in a u16 field (status bytes 5-6), and minlux/dymon's Wireshark capture of the DYMO software shows a 2-byte field on the wire. An earlier revision emitted a u32 here — two bytes too wide — which left two stray 0x00 bytes in the job stream ahead of ESC D and can desync the firmware's command parser.
Parameters
index
number
Returns
Uint8Array