camera module

Description

Only available with ESP32-cam board with OV2640 camera. Manages the camera settings and initialization, sends images to the server via socket.io.

Settings

No permanent settings, camera settings can be adjusted during operation.

Command Keys

key	type	range	description
getStatus	boolean	$-$	send current status if true
gray	boolean	--	convert image to RGB grayscale if true
brightness	integer	(-2, 2)	adjust brightness of the image
exposure	integer	(0, 1200)	set exposure to adjust image brightness manually
contrast	integer	(-2, 2)	adjust contrast
stream	boolean	$-$	continuously send images to server if true, stop sending if false
virtualPan	integer	$-$	increase virtual pan stage if > 0 and decrease if < 0
virtualTilt	integer	$-$	increase virtual tilt stage if > 0 and decrease if < 0
virtualZoom	integer	$-$	increase virtual zoom stage if > 0 and decrease if < 0
frame rate	float	(0, 30)	set the frame rate to the specified number of frames per second
frameSize	integer	(5, 13)	set the frame size to the specified value

details of the available options for the frame size -- note that 7 and 11 are not permitted and will throw an error

value	name	frame size
5	QVGA	320 x 140
6	CIF	400 x 296
8	VGA	640 x 480
9	SVGA	800 x 600
10	XGA	1024 x 768
12	SXGA	1280 x 1024
13	UXGA	1600 x 1200

Status

"controlId":"screen",
"status":
{
    "stream":true,
    "frameSize":10,
    "gray":false,
    "exposure":500,
    "contrast":0
}

Meaning of status fields identical to Command Keys, see there for description