OpenMV M4 카메라 -오픈 머신 비전 개발 플랫폼
(OpenMV M4 V2)
개요
- OpenMV M4 카메라는 머신 비전을 쉽게 구현할 수 있게 한 작고 저전력 마이크로컨트롤러 보드입니다.
- 이미지를 캡쳐할 수 있을 뿐아니라 얼굴을 검출하거나 컬러를 트래킹 등등의 태스크를 수행할 수 있습니다.
- 본 제품은 파이썬 스크립트를 이용하여 프로그래밍이 가능하여 복잡한 머신비전 알고리즘 출력을 쉽게 다루고, 좀더 하이레벨의 데이터 구조로 작업을 할 수 있게 합니다.
- 외부 이벤트를 이용하여 쉽게 사진을 찍거나 비디오를 찍을 수 있으며, IO 핀 제어를 위한 머신비전 알고리즘을 실행할 수 있습니다.
특징
- The STM32F427VG ARM Cortex M4 processor running at 180 MHz with 256KB of RAM and 1 MB 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 record video and easy pull machine vision assets off of the μSD card.
- A SPI bus that can run up to 45Mbs allowing you to easily stream image data off the system to either the LCD Shield, the WiFi Shield, or another microcontroller.
- An I2C Bus, CAN Bus, and an Asynchronous Serial Bus (TX/RX) 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 9 I/O pins on the board).
- And, an RGB LED and two high power 850nm IR LEDs.
-
Specifications
Processor ARM® 32-bit Cortex®-M4 CPU
w/ Single Precision FPU
180 MHz (225 DMIPS)
Core Mark Score: 608
(compare w/ Raspberry Pi Zero: 2060)RAM Layout 64KB .DATA/.BSS/Heap/Stack
192KB Frame Buffer/Stack
(256KB Total)Flash Layout 16KB Bootloader
48KB Embedded Flash Drive
960KB Firmware
(1MB Total)Supported Image Formats Grayscale
RGB565
JPEGMaximum Supported Resolutions Grayscale: 320x240 and under
RGB565: 320x240 and under
Grayscale JPEG: 320x240 and under
RGB565 JPEG: 320x240 and underLens 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 16g Length 45mm Width 36mm Height 30mm