Variables

There are a smattering of variables that are setup as part of the boot process. They are described as follows:

Variable

Description

_VERSION

embLua Lua version.

_sW

Software build ID and date (same as output by boot log).

_fW

Firmware build ID and date (same as output by boot log).

_hW

Hardware DNA (same as output by boot log).

_cI

Current Core number and total Cores.

PWM_MAX

Maximum PWM duty cycle value (256).