Oasis UMO19 MCU003 USB microscope
From Random Projects
The Oasis UMO19 MCU003 USB microscope is a cheap (ca. 50 Euros from various eBay vendors), portable, USB-based digital microscope. It can be focused on a 20x or 400x magnification. The device basically is a "webcam" when attached to USB and you can use it for live viewing of the magnified area, and also create screen captures (still photos), see below for a few sample images.
Note: See also my blogpost Using the Oasis UMO19 MCU003 400x USB microscope on Linux via luvcview for additional info.
Contents |
Specification
This is what the box says:
- Image sensor: 1.3 Megapixels (interpolated to 2M)
- Still capture resolution: 1600x1200, 1280x960, 800x600, 352x288, 320x240, 160x120
- Video capture resolution: 1600x1200, 1280x960, 800x600, 352x288, 320x240, 160x120
- Color: 24 bit RGB
- Flicker frequency: 50Hz / 60Hz
- Frame rate: max. 30 frames per second under 600 Lux brightness
- Magnification ratio: 20x to 400x
- Shutter speed: 1 sec. to 1/1000 sec.
- Video format: AVI
- Photo format: JPEG or BMP
- White balance: auto
- Exposure: auto
- Light source: 8 LEDs (switchable by software)
- PC interface: USB 2.0
- Power source: 5V DC from USB port
- OS: Windows 2000/XP/Vista, Mac OS X 10.5 or above
- OSD language: English, German, Spanish, Korean, French, Russian
- Bundled software: MicroCapture
- Size: 125mm (L) x 33mm (R)
Usage on Linux
The device works out of the box on Linux using the uvcvideo kernel module and any application that can work with UVC / V4L2 devices, e.g. luvcview, guvcview, cheese, or uvccapture.
$ lsusb Bus 001 Device 013: ID 0ac8:3610 Z-Star Microelectronics Corp.
$ luvcview luvcview 0.2.6 SDL information: Video driver: x11 A window manager is available Device information: Device path: /dev/video1 Stream settings: Frame format: YUYV (MJPG is not supported by device) Frame size: 640x480 Frame rate: 30 fps
$ guvcview
guvcview 1.3.1
video device: /dev/video0
/dev/video0 - device 1
Init. Vimicro USB2.0 UVC PC Camera (location: usb-0000:00:13.2-3)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 352, height = 288 }
[...]
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 2/15,
vid:0ac8
pid:3610
driver:uvcvideo
checking format: 1448695129
fps is set to 1/30
V4L2_CTRL_FLAG_NEXT_CTRL supported
fps is set to 1/30
[...]
$ cheese (works fine too)
$ uvccapture -v -m Using videodevice: /dev/video0 Saving images to: snap.jpg Image size: 320x240 Taking snapshot every 0 seconds Taking images using mmap Resetting camera settings ioctl querycontrol error 22 Camera brightness level is 0 Camera contrast level is 18 Camera saturation level is 8 ioctl querycontrol error 22 Camera gain level is -1 Saving image to: snap.jpg
Photos
Fabrics
Various pieces of clothes, jeans, curtains, carpets, jackets, etc.
400x
Curtain, 20x
Curtain, 400x
400x
400x
400x
400x
400x
400x
LEDs
LED 1, 20x
LED 1, 400x
LED 2, 20x
LED 2, 400x
LED 3, 400x
PCB
Pads, traces, silkscreen, 400x
Solder joint, 400x
Solder joint, 400x
Solder joint, 400x
Solderwick, 400x
A via, 400x
Another via, 400x
Pads, vias, 20x
Chips
LP62, 20x
Epcos, 20x
Epcos, 400x
LPC2103, 20x
MCP23008, 20x
Capacitor 1, 20x
Capacitor 1, 400x
Paper
Black/white printer, 400x
Color printer, 400x
Ballpen on paper, 400x
Screens, displays
TFT screen, 400x
TFT screen, 400x
Cell phone screen 1, 400x
Cell phone screeen 2, 400x
Laptop TFT, 400x
Alarm clock screen, 20x
Misc
400x
Details
lsusb
$ lsusb -vvv
Bus 001 Device 097: ID 0ac8:3610 Z-Star Microelectronics Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x0ac8 Z-Star Microelectronics Corp.
idProduct 0x3610
bcdDevice 1.00
iManufacturer 1 Vimicro Co.,ltd
iProduct 2 Vimicro USB2.0 UVC PC Camera
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 501
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 320mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 2 Vimicro USB2.0 UVC PC Camera
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 2 Vimicro USB2.0 UVC PC Camera
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 79
dwClockFrequency 30.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00040a0e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
Zoom (Absolute)
PanTilt (Absolute)
Privacy
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 2
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000547f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
White Balance Temperature
Power Line Frequency
White Balance Temperature, Auto
Digital Multiplier
iProcessing 0
bmVideoStandards 0x 9
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 2
iTerminal 0
VideoControl Interface Descriptor:
bLength 28
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {5dc717a9-1941-da11-ae0e-000d56ac7b4c}
bNumControl 9
bNrPins 1
baSourceID( 0) 1
bControlSize 3
bmControls( 0) 0xf9
bmControls( 1) 0x81
bmControls( 2) 0x80
iExtension 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x000a 1x 10 bytes
bInterval 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 263
bEndPointAddress 130
bmInfo 0
bTerminalLink 3
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 1
bControlSize 1
bmaControls( 0) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 5
guidFormat {59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 1 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 36864000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 3
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 12126720
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 3
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 9216000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 3
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 3041280
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 3
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 2304000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 3
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 5
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 352
wHeight( 1) 288
wWidth( 2) 320
wHeight( 2) 240
wWidth( 3) 176
wHeight( 3) 144
wWidth( 4) 160
wHeight( 4) 120
bNumCompressionPatterns 5
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 0 (Unspecified)
bTransferCharacteristics 0 (Unspecified)
bMatrixCoefficients 0 (Unspecified)
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b00 2x 768 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0c00 2x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1380 3x 896 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 7
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
luvcview info
$ luvcview -l luvcview 0.2.6 SDL information: Video driver: x11 A window manager is available Device information: Device path: /dev/video0 Stream settings: Frame format: YUYV (MJPG is not supported by device) Frame size: 640x480 Frame rate: 30 fps Available controls of device 'Camera 1' (Type 1=Integer 2=Boolean 3=Menu 4=Button) V4L2_CID_BASE (predefined controls): index:9963776 name:Brightness type:1 min:-16 max:16 step:1 def:0 now:0 index:9963777 name:Contrast type:1 min:1 max:32 step:1 def:18 now:18 index:9963778 name:Saturation type:1 min:0 max:30 step:1 def:8 now:8 index:9963779 name:Hue type:1 min:-45 max:45 step:1 def:0 now:0 index:9963788 name:White Balance Temperature, Auto type:2 min:0 max:1 step:1 def:1 now:1 index:9963792 name:Gamma type:1 min:100 max:190 step:10 def:150 now:142 index:9963800 name:Power Line Frequency type:3 min:0 max:2 step:1 def:1 now:1 Menu items: index:0 name:Disabled index:1 name:50 Hz index:2 name:60 Hz index:9963802 name:White Balance Temperature type:1 min:2800 max:8350 step:1 def:4650 now:4650 index:9963803 name:Sharpness type:1 min:0 max:15 step:1 def:3 now:3 V4L2_CID_PRIVATE_BASE (driver specific controls):
$ luvcview -L
luvcview 0.2.6
SDL information:
Video driver: x11
A window manager is available
Device information:
Device path: /dev/video0
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 2/15,
{ pixelformat = 'RGB3', description = 'RGB3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 2/15,
{ pixelformat = 'BGR3', description = 'BGR3' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 2/15,
{ pixelformat = 'YU12', description = 'YU12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 2/15,
{ pixelformat = 'YV12', description = 'YV12' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/15, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/15, 2/15,
