How do I come to terms with LANC?

One wire dual direction LAN.  Takes 4 identical commands for the rec. to see it as a valid command.

 

Pulled up to 5V~.
Pulled down =Mark
LANC_REMOTE

This drawing is from

http://controlyourcamera.blogspot.com/2011/02/arduino-powered-lanc-remote.html

Use arduino to drive, Plain English:
http://controlyourcamera.blogspot.com/2011/02/arduino-controlled-video-recording-over.html

 

 

Example code:

 

tons of detail:
http://www.boehmel.de/lanc.htm

Vixia HFS200

2.5m

from http://controlyourcamera.blogspot.com/2011/02/arduino-controlled-video-recording-over.html

Nop = 0x0000,
RecordStart = 0x3318,
RecordStop = 0x198C,
IrisIncrement = 0x5528, // Used for IDLE state
IrisDecrement = 0x5328, // Used for IDLE state
IrisRecIncrement = 0x2A94, // Used for RECORD state
IrisRecDecrement = 0x2994, // Used for RECORD state
IrisAutoAdjust = 0xAF28,
FocusShuttleFar = 0xE028, // Used for IDLE state (value mask 0x0F00: 1 3 5 7 9 B D F)
FocusShuttleNear = 0xF028, // Used for IDLE state (value mask 0x0F00: 1 3 5 7 9 B D F)
FocusShuttleRecFar = 0x7094, // Used for RECORD state (value mask 0x0700: 0 1 2 3 4 5 6 7)
FocusShuttleRecNear = 0x7894, // Used for RECORD state (value mask 0x0700: 0 1 2 3 4 5 6 7)
FocusFar = 0x4528, // Used for IDLE state
FocusNear = 0x4728, // Used for IDLE state
FocusRecFar = 0x2394, // Used for RECORD state
FocusRecNear = 0x2294, // Used for RECORD state

these are the few we want to try

 

AF Iris auto
77 White balance reset (not if white balance is selected via menu)
55 Iris more open

55
Iris more open
53 Exposure auto/man. toggle (models of the early 90’s)
Iris more close
49 White balance toggle (only cameras until approx. 1996)

lanc on a small canon 220 camera uses a 2/32 submini plug RS 274-0298

 

CANON HFS200 Manual

Canon vixia Hookup VIDEO

 

 

 

 

The command for opening the IRIS is:
Byte 0 – 0010 1000
Byte 1 – 55 (expressed in hexa)