Intertec Data Systems ITV-GECWV407M User Manual

© 2013 Intertec Components GmbH, Erdinger Str. 45, 85356 Freising. www.intertec.org

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V. 1.2, 22.04.2013, RB

ITV-GECWV407M User Manual

CMOS TYPE CAMERA

 Application

The ITV-GECWV407M JPEG compression module performs as a video camera or a JPEG
compressed still camera and can be fixed into all kinds of system. For example: remote
monitoring, vehicle monitoring, visible the doorbell, camera phones, digital image records,
industry control, access control, etc. 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.

 Feature

1. Small size: 28mm x 20mm (L x W).

2. 0.3M CMOS ensor, VGA resolution, down sample to QVGA.

3. Video-out: VGA & 60fps, optional.

4. Low power consumption, 3.3V operation.

5. UART interface support up to 115.2Kbps.

6. Built-in JPEG CODE.

7. Built-in lens, optional.

 Outline

5.15

© 2013 Intertec Components GmbH, Erdinger Str. 45, 85356 Freising. www.intertec.org

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 Block Diagram

 Board Layout

 Pin Function

*The default socket is 4 pins, we will not assemble the fifth pin (Video out) unless user specify.

1.Lens Structure

© 2013 Intertec Components GmbH, Erdinger Str. 45, 85356 Freising. www.intertec.org

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 Specification

Item

Specification

Remark

Pixel Size

PAL:628 x 582 / NTSC:510 x 492

NTSC default

Image Sensor

1/5”

CMOS sensor OV7740

Baud Rate

9.6Kbps~115.2Kbps

115.2Kbps default

Output

TTL

Video Output

VGA & 60fps

1V

p-p

Operating Voltage

3.3V±10%

Working Current

110 mA

Lens

Construction: 4P+IR filter

Effective Focal Length:3.27mm

F#:2.5

FOV:58°

Distortion <1.0%

Relative illumination: 60% Ø3.44

Operating Temp.

-20°C～+60°C

© 2013 Intertec Components GmbH, Erdinger Str. 45, 85356 Freising. www.intertec.org

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User Manual

1. Serial Interface

1.1 Baud Rate

The ITV-GECWV407M supports total 5 types of baud rate: 9,600bps, 19,200bps,
38,400bps, 57,600bps and 115,200bps. Default baud rate is 115,200bps. In other words,
host needs to use 115200bps at the first connection with ITV-GECWV407M. After the first
connection, host can change the baud rate to other supported values.

1.2 Single Byte Timing Diagram

A single byte RS-232 transmission consists of one start bit, 8-bit contents and one stop bit.
A start bit is always 0, while a stop bit is always 1. LSB is sent out first and is right after the
start bit.

Figure 5 RS232 communications – single byte timing diagram

1.3 Command Timing Diagram

A single command consists of 4 or more (depends on data length’s value) continuous
single byte RS-232 transmissions. The following is an example of GET VERSION (56h,
00h, 11h, 00h) command.

© 2013 Intertec Components GmbH, Erdinger Str. 45, 85356 Freising. www.intertec.org

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Figure 6 GET VERSION command timing diagram

1.4 Command summary

Command

Functions

GET VERSION

Get Firmware version information

SYSTEM RESET

System reset

FBUF CTRL

Control frame buffer

GET FBUF LEN

Get image lengths in frame buffer

READ FBUF

Read frame buffer

SET BAUDRATE

Set serial baud rate

SET SAMPLESIZE

Set image size(VGA/QVGA)

SET COMPRESSRATIO

Set image compressed rate

COM REPLY

Host will get reply command from JC409M-W01

Table 1 command summary

1.5 Command format

Protocol sign(1byte) + Serial No.(1byte) + Command(1byte) + Data length(1byte) +
Control data(nbytes)

Protocol sign: This one byte field indicates the transmitting mode of the command.

Protocol sign

value

definitions

Sending command

56h

The command is sent from the host to ITV-GECWV407M

Replying command

76h

Command is received from ITV-GECWV407M to the host