thinkyhead

M123 - Fan Tachometers

control Report fan speeds from tachometers

Description

If your machine has fans with tachometers this command will report their current speed readings in RPM. Marlin can also auto-report the fan speeds at regular intervals, as set by M123 S.

Usage

M123

Examples

Report current fan speeds

M123

Report fan speeds every 5 seconds

M123 S5