OpenMV Cam H7 Plus Genuine SingTown 5MP High Definition Image Processing Machine Learning Smart Camera Robotics OpenMV4 H7 Plus

The OpenMV Cam is a small, low power, microcontroller board which allows you to easily implement applications using machine vision in the real-world. You program the OpenMV Cam in high level Python scripts (courtesy of the MicroPython Operating System) instead of C/C++. This makes it easier to deal with the complex outputs of machine vision algorithms and working with high level data structures. But, you still have total control over your OpenMV Cam and its I/O pins in Python. You can easily trigger taking pictures and video on external events or execute machine vision algorithms to figure out how to control your I/O pins.

The OpenMV Cam features:

The STM32H743II ARM Cortex M7 processor running at 480 MHz with 32MBs SDRAM + 1MB of SRAM and 32 MB of external flash + 2 MB of internal flash. All I/O pins output 3.3V and are 5V tolerant. The processor has the following I/O interfaces:

A full speed USB (12Mbs) interface to your computer. Your OpenMV Cam will appear as a Virtual COM Port and a USB Flash Drive when plugged in.

A μSD Card socket capable of 100Mbs reads/writes which allows your OpenMV Cam to take pictures and easilypull machine vision assets off of the μSD card.

A SPI bus that can run up to 80Mbs allowing you to easily stream image data off the system to either the LCD Shield, the WiFi Shield, or another microcontroller.

An I2C Bus (up to 1Mb/s), CAN Bus (up to 1Mb/s), and an Asynchronous Serial Bus (TX/RX, up to 7.5Mb/s) for interfacing with other microcontrollers and sensors.

A 12-bit ADC and a 12-bit DAC.

Two I/O pins for servo control.

Interrupts and PWM on all I/O pins (there are 10 I/O pins on the board).

And, an RGB LED and two high power 850nm IR LEDs.

32 MB of external 32-bit SDRAM clocked at 100 MHz for 400 MB/s of bandwidth.

32 MB of external quadspi flash clocked at 100 MHz in 4-bit DDR mode for 100 MB/s of bandwidth (read speed).

A removable camera module system allowing the OpenMV Cam H7 to interface with different sensors:

The OpenMV Cam H7 Plus comes with a OV5640 image sensor is capable of taking 2592x1944 (5MP) images. Most simple algorithms will run between 25-50 FPS on QVGA (320x240) resolutions and below. Your image sensor comes with a 2.8mm lens on a standard M12 lens mount. If you want to use more specialized lenses with your image sensor you can easily buy and attach them yourself.

For professional machine vision applications you can buy our Global Shutter Camera Module.

For thermal machine vision applications you can buy our FLIR Lepton Adapter Module.

A LiPo battery connector compatible with 3.7V LiPo batteries commonly sold online for hobbyist robotic applications.

For more information about the OpenMV Cam please see our documentation.

Interface Library

The OpenMV Cam comes built-in with an RPC (Remote Python/Procedure Call) library which makes it easy to connect the OpenMV Cam to your computer, a SBC (single board computer) like the RaspberryPi or Beaglebone, or a microcontroller like the Arduino or ESP8266/32. The RPC Interface Library works over:

Async Serial (UART) - at up7.5 Mb/s.

I2C Bus - at up to1 Mb/s.

SPI Bus - at up to80 Mb/s.

CAN Bus - at up to1 Mb/s.

USB Virtual COM Port (VCP) - at up to12 Mb/s.

WiFi using theWiFi Shield- at up to12 Mb/s.

With the RPC Library you can easily get image processing results, stream RAW or JPG image data, or have the OpenMV Cam control another Microcontroller for lower-level hardware control like driving motors.

OpenMV provides the following libraries for interfacing your OpenMV Cam to other systems below:

Generic Python Interface Library for USB and WiFi Comms

Provides Python code for connecting your OpenMV Cam to a Windows, Mac, or Linux computer (or RaspberryPi/Beaglebone, etc.) with python programmatically over USB VCP or Ethernet/WiFi (i.e. with sockets).

Arduino Interface Library for I2C, SPI, CAN, and UART Comms

Applications

The OpenMV Cam can be used for the following things currently (more in the future):

TensorFlow Lite for Microcontrollers Support

TensorFlow Lite support lets you run custom image classification and segmentation models on board your OpenMV Cam. With TensorFlow Lite support you can easily classify complex regions of interest in view and control I/O pins based on what you see.See the TensorFlow module for more information.

The OpenMV Cam featuresEdge Impulse integration for easy training of TensorFlow Lite Models in the cloud. Using OpenMV IDE and Edge Impulse you can easily train a Model in15 minutes!Here's a video showing how it works.

Frame Differencing

You can use Frame Differencing on your OpenMV Cam to detect motion in a scene by looking at what's changed. Frame Differencing allows you to use your OpenMV Cam for security applications. Checkout the video of the feature here.

Color Tracking

You can use your OpenMV Cam to detect up to 16 colors at a time in an image (realistically you'd never want to find more than 4) and each color can have any number of distinct blobs. Your OpenMV Cam will then tell you the position, size, centroid, and orientation of each blob. Using color tracking your OpenMV Cam can be programmed to do things like tracking the sun, line following, target tracking, and much, much, more. Video demo here.

Marker Tracking

You can use your OpenMV Cam to detect groups of colors instead of independent colors. This allows you to create color makers (2 or more color tags) which can be put on objects allowing your OpenMV Cam to understand what the tagged objects are. Video demo here.

Face Detection

You can detect Faces with your OpenMV Cam (or any generic object). Your OpenMV Cam can process Haar Cascades to do generic object detection and comes with a built-in Frontal Face Cascade and Eye Haar Cascade to detect faces and eyes.Video demo here.

Eye Tracking

You can use Eye Tracking with your OpenMV Cam to detect someone's gaze. You can then, for example, use that to control a robot. Eye Tracking detects where the pupil is looking versus detecting if there's an eye in the image.

Person Detection

You can detect if there's a person in the field of view using our built-in person detector TensorFlow Lite model. Video demo here.

Optical Flow

You can use Optical Flow to detect translation of what your OpenMV Cam is looking at. For example, you can use Optical Flow on a quad-copter to determine how stable it is in the air. See the video of the feature here.

QR Code Detection/Decoding

You can use the OpenMV Cam to read QR Codes in it's field of view. With QR Code Detection/Decoding you can make smart robots which can read labels in the environment. You can see our video on this feature here.

Data Matrix Detection/Decoding

The OpenMV Cam H7 Plus can also detect and decode data matrix 2D barcodes too. You can see our video on this feature here.

Linear Barcode Decoding

The OpenMV Cam H7 Plus can also decode 1D linear bar codes. In particular, it can decode EAN2, EAN5, EAN8, UPCE, ISBN10, UPCA, EAN13, ISBN13, I25, DATABAR, DARABAR_EXP, CODABAR, CODE39, CODE93, and CODE128 barcodes. You can see our video on this feature here.

AprilTag Tracking

Even better than QR Codes above, the OpenMV Cam H7 Plus can also track AprilTags. AprilTags are rotation, scale, shear, and lighting invariant state-of-the-art fidicual markers. We have a video on this feature here.

Line Detection

Infinite line detection can be done speedily on your OpenMV Cam at near max FPS. And, you can also find non-infinite length line segments too. You can see our video of this feature here. Additionally, we support running linear regressions on the image for use in line following applications like this DIY Robocar.

Circle Detection

You can use the OpenMV Cam H7 Plus to easily detect circles in the image. See for yourself in this video.

Rectangle Detection

The OpenMV Cam H7 Plus can also detect rectangles using our AprilTag library's quad detector code. Checkout the video here.

Template Matching

You can use template matching with your OpenMV Cam to detect when a translated pre-saved image is in view. For example, template matching can be used to find fiducials on a PCB or read known digits on a display.

Image Capture

You can use the OpenMV Cam to capture Grayscale/RGB565 BMP/JPG/PPM/PGM images. You directly control how images are captured in your Python script. Best of all, you can preform machine vision functions and/or draw on frames before saving them.

Video Recording

You can use the OpenMV Cam to record up to Grayscale/RGB565 MJPEG video or GIF images (or RAW video). You directly control how each frame of video is recorded in your Python script and have total control on how video recording starts and finishes. And, like capturing images, you can preform machine vision functions and/or draw on video frames before saving them.

Finally, all the above features can be mixed and matched in your own custom application along with I/O pin control to talk to the real world.

Pinout

Dimensions

Specifications

Processor

ARM® 32-bit Cortex®-M7 CPU

w/ Double Precision FPU

480 MHz (1027 DMIPS)

Core Mark Score: 2400

(compare w/ Raspberry Pi 2: 2340)

RAM

Layout

64KB Stack

256KB .DATA/.BSS/Heap

32MB Frame Buffer/Stack

512KB SDRAM Cache

256KB DMA Buffers

Flash

Layout

128KB Bootloader

16MB Embedded Flash Drive

1792KB Firmware

Supported

Image

Formats

Grayscale

RGB565

JPEG (and BAYER/YUV422)

Maximum Supported Resolutions

Grayscale: 2952x1944 (5MP) and under

RGB565: 2952x1944 (5MP) and under

Grayscale JPEG: 2952x1944 (5MP) and under

RGB565 JPEG: 2952x1944 (5MP) and under

Lens Info

Focal Length: 2.8mm

Aperture: F2.0

Format: 1/3"

HFOV = 70.8°, VFOV = 55.6°

Mount: M12*0.5

IR Cut Filter: 650nm (removable)

Electrical

Info

All pins are 5V tolerant with 3.3V output. All pins can sink or source up to 25mA. P6 is not 5V tolerant in ADC or DAC mode. Up to 120mA may be sinked or sourced in total between all pins. VIN may be between 3.6V and 5V. Do not draw more than 250mA from your OpenMV Cam's 3.3V rail.

Weight

17g

Length

45mm

Width

36mm

Height

29mm

Power Consumption

Idle - No μSD Card

140mA @ 3.3V

Idle - μSD Card

140mA @ 3.3V

Active - No μSD Card

230mA @ 3.3V

Active - μSD Card

240mA @ 3.3V

Temperature Range

Storage

-40°C to 125°C

Operating

-20°C to 70°C

Shipping Information

Country of Origin

China

HS Code

854290