JPEG Camera SC03MPE User manual

SC03MPE:)0.3)Mega)Pixels)Serial)JPEG)Camera)User)Manual)
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Miniature 0.3 Mega Pixels Serial JPEG Camera with NTSC Video
SC03MPE User Manual, Rev. D
For latest user manual, please visit: www.jpegcamera.com
General Description
The SC03MPE module performs as a video camera or a JPEG compressed still camera and can be attached to
a wireless or PDA host. Users can send out a snapshot command from the host in order to capture a full
resolution single-frame still picture. The picture is then compressed by the JPEG engine and transferred to the
host.
Features
•Small in size, 20x28mm
•VGA resolution, down sample to QVGA (640 x 480)
•Low power consumption, 5V operation
•UART interface support up to 115200 bps (default 115200 bps)
•Built-in JPEG CODEC
•Built-in lens, optional
•User-friendly command
Pin Description
Pin
Description
GND
Power Ground
RXD
Data Receive (3.3V TTL)
Level)
TXD
Data Transmit (3.3V TTL)
Level)
VCC
Power 5V/3.3V DC
CVBS
Analog Video output (NSTC)

SC03MPE:)0.3)Mega)Pixels)Serial)JPEG)Camera)User)Manual)
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Command Summary
Command
Function
INITIAL
Configure interface speed , image size
GET PICTURE
Get image from the module
SNAPSHOT
Capture a still image
SET PACKAGE SIZE
Set the package size to transmit data from module to Host
RESET
Reset the whole system
DATA LENGTH
Provide the data length information
SYNC
Start a synchronization sequence
ACK
Indicate the communication success
NACK
Indicate the communication fail with error code
Electrical Specification
VDD = 3.3V+10%, TA = 0 to 25℃
Parameter
Min
TVp
Max
Unit
DC supply voltage
3.3
5.0
6.0
V
Operation Current
90
100
110
mA
High level input voltage (TTL)
2.0
3.3
V
Low level input voltage (TTL)
0
0.8
V
Operating temperature range
-20
20
85
℃
DSP and Lens Specification
Description
Parameter
DSP
VC0706
Image Sensor
OV7725
Imager Format
1/4"
F/#
2.8
Focal Length
4.3mm
Field of View Diagonal
(deg)
70 degree
Distortion
0.38%
Relative Illumination
>53%

SC03MPE:)0.3)Mega)Pixels)Serial)JPEG)Camera)User)Manual)
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Mechanical Specification (unit: mm)
Command Protocol (HEX format data)
1. RESET：56 00 26 00 RETURN：76 00 26 00
2. CAPTURE A IMAGE：56 00 36 01 00 RETURN：76 00 36 00 00
3. READ IMAGE DATA LENGTH：56 00 34 01 00
RETURN：76 00 34 00 04 00 00 XX YY
XX YY ------- image length，XX--- high byte，YY--- low byte
CAPTURE
（56 00 36 01 00 ）
RESET
（56 00 26 00 ）
ACK
（76 00 26 00 ）
ACK
（76 00 36 00 00 ）

SC03MPE:)0.3)Mega)Pixels)Serial)JPEG)Camera)User)Manual)
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4. READ IMAGE DATA：56 00 32 0C 00 0A 00 00 XX XX 00 00 YY YY 00 0A
RETURN：76 00 32 00 00 FF D8 。。。。。。 FF D9 76 00 32 00 00
00 00 XX XX
---- start address（the address must be times of 8，for example 00 00 ）
00 00 YY YY ----the length of image data（high byte，low byte）
Note: JPEG IMAGE DATA must be FF D8 in first，and FF D9 in end.
5. STOP CAPTURE：56 00 36 01 03 RETURN：76 00 36 00 00
6. SETTING IMAGE COMPRESSIBILITY：56 00 31 05 01 01 12 04 XX
RETURN：76 00 31 00 00
XX ----default value: 36 （range：00 ----FF）
7. SETTING IMAGE RESOLUTION：（default：640 * 480）
56 00 31 05 04 01 00 19 11 （320*240）RETURN：76 00 31 00 00
56 00 31 05 04 01 00 19 00 （640*480）
56 00 31 05 04 01 00 19 22 （160*120）
READ DATA
（56 00 32 0C 00 0D 00 00 XX XX 00 00 YY YY 00 0A）
READ DATA LENGTH
（56 00 34 01 00 ）
ACK
（76 00 34 00 04 00 00 XX YY ）
ACK
（76 00 32 00 00 FF D8 。。。。。。 FF D9 76 00 32 00 00 ）
ACK
（76 00 36 00 00）
STOP CAPTURE
（56 00 36 01 03）
ACK
（76 00 31 00 00）
SET COMPRESSIBILITY
（56 00 31 05 01 01 12 04 XX）
ACK
（76 00 31 00 00）
SET RESOLUTION
（56 00 31 05 04 01 00 19 XX）

SC03MPE:)0.3)Mega)Pixels)Serial)JPEG)Camera)User)Manual)
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8. BAND RATE：( default: 115200 bps )
XX YY BAND RATE
AE C8 9600
56 E4 19200
2A F2 38400
1C 4C 57600
0D A6 115200
9. Initial operation process
（1）power on
（2）delay 2.5s
（3）reset command
（4）set image resolution command
（5）set image compressibility command
10. Get an image operation process
（1）capture a image command
（2）read image data length command
（3）read image data command
（4）stop capture command
For questions regarding this user manual, please email to [email protected]
Or Call [phone]. Thank you.
SET BAND RATE
（56 00 31 06 04 02 00 08 XX YY）
ACK
（76 00 31 00）