M240 - Trigger Camera

extras Trigger a camera shutter PHOTO_GCODE

Trigger a camera shutter using a digital pin or by bumping a physical switch.

CHDK_PIN or PHOTOGRAPH_PIN is required prior to Marlin 2.0.0.

To use the CHDK_PIN or PHOTOGRAPH_PIN option with a digital camera see this article.

To use an endstop or contact switch as a shutter switch for your smartphone’s camera, see this video.

M240 [A<offset>] [B<offset>] [D<ms>] [F<feedrate>] [I<pos>] [J<pos>] [P<ms>] [R<length>] [S<feedrate>] [X<pos>] [Y<pos>] [Z<length>]

`[A<offset>]` PHOTO_POSITION	Offset to the X return position.
`[B<offset>]` PHOTO_POSITION	Offset to the Y return position.
`[D<ms>]` PHOTO_SWITCH_POSITION PHOTO_SWITCH_MS	Duration to hold down the shutter switch.
`[F<feedrate>]` PHOTO_POSITION	Feedrate for the main photo moves. If omitted, the homing feedrate will be used.
`[I<pos>]` PHOTO_SWITCH_POSITION	Shutter switch X position. If omitted, the photo move X position applies.
`[J<pos>]` PHOTO_SWITCH_POSITION	Shutter switch Y position. If omitted, the photo move Y position applies.
`[P<ms>]` PHOTO_SWITCH_POSITION PHOTO_SWITCH_MS	Delay after pressing the shutter switch.
`[R<length>]` PHOTO_POSITION	Retract/recover length.
`[S<feedrate>]` PHOTO_POSITION	Retract/recover feedrate.
`[X<pos>]` PHOTO_POSITION	Main photo move X position.
`[Y<pos>]` PHOTO_POSITION	Main photo move Y position.
`[Z<length>]` PHOTO_POSITION	Main photo move Z raise.