OpenMV Cam H7 – A Machine Vision Camera (Discontinued)

Note: OpenMV Cam H7 – A Machine Vision Camera is discontinued now, we recommend OpenMV Cam RT1060 Camera for Machine Vision as a suitable replacement.

The OpenMV Cam H7 comes with a MT9M114 image sensor is capable of taking 640x480 8-bit Grayscale images or 640x480 8-bit BAYER images at 40 FPS when the resolution is above 320x240 and 80 FPS when it is below. Most simple algorithms will run between 40-80 FPS on QVGA (320x240) resolutions and below. Your image sensor comes with a 2.1mm 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.

The STM32H743VI ARM Cortex M7 processor running at 480 MHz with 1MB SRAM and 2MB of 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 easily pull 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.

Three I/O pins for servo control.

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

An RGB LED and two high power 850nm IR LEDs.

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

Frame Differencing

Color Tracking

Marker Tracking

Face Detection

Eye Tracking

Optical Flow

QR Code Detection/Decoding

Data Matrix Detection/Decoding

Linear Barcode Decoding

AprilTag Tracking

Line Detection

Circle Detection

Rectangle Detection

Template Matching

Image Capture

Video Recording

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
	512KB Frame Buffer/Stack
	256KB DMA Buffers
Flash Layout	128KB Bootloader
	128KB Embedded Flash Drive
	1792KB Firmware
	(2MB Total)
Supported Image Formats	Grayscale
	RGB565
	JPEG (and BAYER)
Maximum Supported Resolutions	Grayscale: 640x480 and under
	RGB565: 320x240 and under
	Grayscale JPEG: 640x480 and under
	RGB565 JPEG: 640x480 and under
Lens Info	Focal Length: 2.1mm
	Aperture: F2.0
	Format: 1/6"
	HFOV = 60.7°, VFOV = 47.5°
	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	19g
Length	45mm
Width	36mm
Height	30mm

Quick reference for the openmvcam

OpenMV Cam Schematic

Unofficial 3D CAD Model

OpenMV Cam H7 x1

Pin Header x2