MT9T112 – 3.1 MP Camera Module w/ Stock Lens:
The MT9T112 – 3.1 MP Camera Module w/ Stock Lens (B0005) features the MT9T112 color sensor from Micron/Aptiva. The sensor (an updated version of the MT9T111) has a 1/4.0″ optical format, which combined with the pixel size of 1.75 µm x 1.75 µm, provides the 3.1 MP (2048 x 1536) QXGA image. This is a rolling shutter sensor, which captures an entire column (or row) simultaneously, and compiles the image by scanning across (or down).
This adapter board does not offer a standard (M12 or CS) lens mount, but uses the “stock lens” attached to the sensor. However, additional camera modules with similar sensors are available from ArduCAM. For example, see OV3640 – 3.0 MP Camera Module for a similar module with a bundled M12 LS-27227 lens option (as well as M12 and CS mounts only, and any compatible lens sold separately).
The key benefit of the standard lens mounts available with this module is the simplicity in swapping the lens – fisheye, wide-angle, telephoto, zoom, IR or NoIR filter – all of which are available here – click on the Camera Lenses product category for the complete selection of ArduCAM lenses. Be sure to note the compatible lens mount height (7 mm, 10 mm, etc.) for each lens selected. Each lens purchased separately comes with an appropriate height lens mount (plastic for M12, metal for CS). Click on the Camera Lens Mounts product category for information about lens mounts, including compatibility with the various lenses.
In the Arduino world, a “shield” is a piggy-back circuit board that provides additional functionality to the development board. In this context, a camera shield provides the required interface from the camera module to your computer. You may choose to create your own custom-built hardware interface via the 20-pin 0.1″ pitch connector. Or, you may purchase one of the available ArduCAM camera shields.
Open-source software and binaries are provided on the ArduCAM GitHub site (see link below) for these shields.
- Sensor: MT9T112 color (Micron/Aptina)
- Full Resolution: 3.1 MP (2048 H x 1536 V)
- Optical Format: 1/4.0″
- Sensor Size: 3.62 mm x 2.73 mm
- Pixel Size: 1.75 µm x 1.75 µm
- Max Frame Rate: 15 fps at full resolution; 30 fps in preview mode
- Connectors: 20-pin 2.54 mm (0.1″) header
- Mount Pitch: N/A
- Board Size: ~30 mm x ~30 mm
Table 1 – 20-pin header interface
|Pin No.||PIN NAME||TYPE||DESCRIPTION|
|1||VCC||Power||3.3 v Power Supply|
|3||SCL||Input||Two-Wire Serial Interface Clock|
|4||SDA||Input/Output||Two-Wire Serial Interface Data I/O|
|5||VSYNC||Input||Active High: Frame Valid; indicates active frame|
|6||HSYNC||Input||Active High: Line/Data Valid; indicates active pixels|
|7||PCLK||Input||Pixel Clock output from sensor|
|8||XCLK||Output||Master Clock into sensor|
|9||DOUT7||Input||Pixel Data Output 7|
|10||DOUT6||Input||Pixel Data Output 6|
|11||DOUT5||Input||Pixel Data Output 5|
|12||DOUT4||Input||Pixel Data Output 4|
|13||DOUT3||Input||Pixel Data Output 3|
|14||DOUT2||Input||Pixel Data Output 2|
|15||DOUT1||Input||Pixel Data Output 1|
|16||DOUT0||Input||Pixel Data Output 0 (LSB)|
- MT9T112 – 3.1 MP Camera Module w/ Stock Lens (qty 1)
- The lens and/or sensor have an IR-cut filter, so this module is not suitable for IR photography.