Description
OV7725 0.3 Megapixel Camera RS232/RS485/TTL Serial JPEG Camera Module 15M Monitoring Distance Digital Camera Module
Product Description
1, Communication protocol format
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Host to camera
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Protocol flag 1Byte
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Serial number 1Byte
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Command word 1Byte
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Data length 1Byte
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Data 0~16Bytes
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0x56(V')
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Num
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cmd
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Len
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Data
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Example: 56 00 11 00 to get the version number
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Camera to host
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Protocol flag 1Byte
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Serial number 1Byte
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Command word 1Byte
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Status word 1Byte
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Data length 1Byte
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Data 0~16Bytes
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0x76(v')
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Num
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Omd
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stus
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Len
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Data
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Example: 76 00 00 0B 56 43 30 37 30 33 20 31 2E 30 30 (VC07031.00), Communication method: VC0706 HUART
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Communication method: VC0706 HUART
2. Get the version number Host send: 56 00 11 00 Camera response: 76 00 11 00 0B 56 43 30 37 30 33 20 31 2E 30 30 (VC07031.00) 3. Take pictures Photographing process: a. Stop the current frame refresh b. Length of marrying picture c. Get pictures d. Recovery frame update a. Stop the current frame refresh The host sends: 56 00 36 01 00 Camera back: 76 00 36 00 00 b. The length of the married picture, the picture length is 4Bytes The host sends: 56 00 34 01 00 Camera back: 76 00 34 00 04 XX XX XX XX c. Get pictures 0x56+serial number 1B+0×32+0x0C+0x00+operation mode+start address 4B+data length 4B+delay time Operation mode: 0X0A=UART, 0X0C=HUART The host sends: 56 00 32 0C 00 0C 00 00 00 00 XX XX XX XX 00 FF Camera back: First back: 76 00 32 00 00 Back again: image data After sending back: 76 00 32 00 00
Note: Delay time refers to the time interval between camera return command and data, the unit is 0.01mS d. Recovery frame update The host sends: 56 00 36 01 02 Camera back: 76 00 36 00 00 4. Set the picture size XX: =0×00 is VGA (640*480), =0×11 is QVGA (320*240), =0×22 is QQVGA (160*120) host sends: 56 00 31 05 01 01 12 04 XX Camera back: 76 00 31 00 00 5. Set the image compression rate XX is the compression ratio (0x00~0xff), the larger the XX, the higher the compression ratio The host sends: 56 00 54 01 XX Camera back: 76 00 54 00 00 6. Reset instruction The host sends: 56 00 26 00 Camera back: 76 00 26 00 00 7. Modify the serial port baud rate XX:=0x2AFA 38400bps,=0x1C4C 57600bps,=0×0DA6 115200bps The host sends: 56 00 24 03 01 XX XX Camera back: 76 00 24 00 00
Specification
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Size
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32*32MM or 38*38MM
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Working environment
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-40℃~80℃
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Image sensor type
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CMOS1/4 inch
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Image pixels
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0.3MP 0V7725
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Resolution
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160*120, 320*240, 640*480
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Output format
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JPEG
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Communication rate/baud rate
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2400~115200bps adjustable
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Working current
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less than 70mA
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Illuminance
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11ux
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White Balance
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Auto
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Exposure
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Auto
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Gain
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Auto
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Lens
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2.8/3.6mm
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Viewing angle
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90 degrees/120 degrees can be optional (default 90 degrees)
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Monitoring distance
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within 15 meters
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Night vision infrared fill light
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optional
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Communication method
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RS232/RS485/TTL optional
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Working voltage
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DC+5V 12V/9~36V optional (default 5V)
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Note
Please note the Working voltage view angle and communication method when you order it. Otherwise we default sent DC5V 90 degrees TTL port camera module.
Details Images