OV5640 FPC Camera Module¶

The OV5640 FPC Camera Module is a compact 5MP rolling-shutter colour sensor with autofocus. It mounts to OpenMV Cam base boards through the board-to-board connector for low-profile builds.

For full datasheet, photos, and ordering see the OV5640 product page.

Note

Not supported on the OpenMV N6 at this time.

Highlights¶

5MP (2592x1944) rolling-shutter sensor
Autofocus, F2.0 aperture, variable focal length

Usage¶

Stream QVGA (320x240) RGB565 video — the OV5640 works as a regular camera module for any image-processing pipeline:

import csi
import time

csi0 = csi.CSI()
csi0.reset()
csi0.pixformat(csi.RGB565)
csi0.framesize(csi.QVGA)
clock = time.clock()

while True:
    clock.tick()
    img = csi0.snapshot()
    print(clock.fps())

The OV5640 also has an on-board JPEG compressor — set the pixformat to csi.JPEG and the sensor delivers compressed frames straight to the OpenMV Cam over the camera bus, so the host stays free for processing rather than encoding. Control the compression quality (0-100) with csi.CSI.quality — higher numbers preserve more detail at the cost of larger frames.

Capture JPEG frames at 1280x720 (HD):

import csi
import time

csi0 = csi.CSI()
csi0.reset()
csi0.pixformat(csi.JPEG)
csi0.framesize(csi.HD)
csi0.quality(90)
clock = time.clock()

while True:
    clock.tick()
    img = csi0.snapshot()
    print(clock.fps())

Capture JPEG frames at 1920x1080 (FHD):

import csi
import time

csi0 = csi.CSI()
csi0.reset()
csi0.pixformat(csi.JPEG)
csi0.framesize(csi.FHD)
csi0.quality(90)
clock = time.clock()

while True:
    clock.tick()
    img = csi0.snapshot()
    print(clock.fps())

Capture JPEG frames at full 5MP — 2592x1944 (WQXGA2):

import csi
import time

csi0 = csi.CSI()
csi0.reset()
csi0.pixformat(csi.JPEG)
csi0.framesize(csi.WQXGA2)
csi0.quality(90)
clock = time.clock()

while True:
    clock.tick()
    img = csi0.snapshot()
    print(clock.fps())

The OV5640 has a voice-coil-actuator autofocus lens. Trigger a single autofocus pass via csi.CSI.ioctl with csi.IOCTL_TRIGGER_AUTO_FOCUS — the sensor sweeps the focus motor once and locks on whatever’s in front of it:

csi0.ioctl(csi.IOCTL_TRIGGER_AUTO_FOCUS)

Re-issue the ioctl any time the scene changes — the autofocus is one-shot, not continuous.