1)The time between preview (640*480) ,capture image full resolution 4056(H) x 3040(V) and back to preview is about 2.5 seconds. It is normal?
2)Is it possible to set camera to work monochrome?
I use this camera with an Raspberry Pi 4B
Bellow you will find the info need it:
gabi@raspberrypi:~ $ uname -a
Linux raspberrypi 5.15.84-v7l+ #1613 SMP Thu Jan 5 12:01:26 GMT 2023 armv7l GNU/Linux
gabi@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME=“Raspbian GNU/Linux 11 (bullseye)”
NAME=“Raspbian GNU/Linux”
VERSION_ID=“11”
VERSION=“11 (bullseye)”
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
gabi@raspberrypi:~ $ cat /ptoc/meminfo
cat: /ptoc/meminfo: No such file or directory
gabi@raspberrypi:~ $ cat /proc/meminfo
MemTotal: 3931052 kB
MemFree: 2131452 kB
MemAvailable: 3452616 kB
Buffers: 72268 kB
Cached: 1301084 kB
SwapCached: 0 kB
Active: 334716 kB
Inactive: 1153196 kB
Active(anon): 1640 kB
Inactive(anon): 178072 kB
Active(file): 333076 kB
Inactive(file): 975124 kB
Unevictable: 56876 kB
Mlocked: 7264 kB
HighTotal: 3264512 kB
HighFree: 1772128 kB
LowTotal: 666540 kB
LowFree: 359324 kB
SwapTotal: 2097148 kB
SwapFree: 2097148 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 171476 kB
Mapped: 163276 kB
Shmem: 62732 kB
KReclaimable: 173284 kB
Slab: 196004 kB
SReclaimable: 173284 kB
SUnreclaim: 22720 kB
KernelStack: 2144 kB
PageTables: 5644 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 4062672 kB
Committed_AS: 1348400 kB
VmallocTotal: 245760 kB
VmallocUsed: 6696 kB
VmallocChunk: 0 kB
Percpu: 448 kB
CmaTotal: 327680 kB
CmaFree: 304656 kB
gabi@raspberrypi:~ $ cat /boot/config
cat: /boot/config: No such file or directory
gabi@raspberrypi:~ $ cat /boot/config.txt
For more options and information see
Raspberry Pi Documentation - Configuration
Some settings may impact device functionality. See link above for details
uncomment if you get no picture on HDMI for a default “safe” mode
#hdmi_safe=1
uncomment the following to adjust overscan. Use positive numbers if console
goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
uncomment to force a console size. By default it will be display’s size minus
overscan.
#framebuffer_width=1280
#framebuffer_height=720
uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
uncomment to force a HDMI mode rather than DVI. This can make audio work in
DMT (computer monitor) modes
#hdmi_drive=2
uncomment to increase signal to HDMI, if you have interference, blanking, or
no display
#config_hdmi_boost=4
uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2c_arm_baudrate=100000
#dtparam=i2s=on
dtparam=spi=on
Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
Additional overlays and parameters are documented /boot/overlays/README
Enable audio (loads snd_bcm2835)
dtparam=audio=on
Automatically load overlays for detected cameras
camera_auto_detect=1
Automatically load overlays for detected DSI displays
display_auto_detect=1
Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2
Disable compensation for displays with overscan
disable_overscan=1
[cm4]
Enable host mode on the 2711 built-in XHCI USB controller.
This line should be removed if the legacy DWC2 controller is required
(e.g. for USB device mode) or if USB support is not required.
otg_mode=1
[all]
[pi4]
Run as fast as firmware / board allows
arm_boost=1
dtoverlay=i2c-gpio,bus=3
[all]
enable_uart=1
gabi@raspberrypi:~ $