UnitV-OV7740

SKU:U078-C

Description

UnitV-OV7740 is a powerful AI vision processing camera unit equipped with the Kendryte K210 chip, integrating a dual-core 64-bit RISC-V CPU and an advanced neural network processor edge computing system-on-chip.

This camera is compact and easy to embed into various devices, offering excellent machine vision processing capabilities. It supports multiple image recognition functions, such as real-time acquisition of the size, coordinates, and type of detected targets, and can perform convolutional neural network calculations even in low-power states, providing users with a zero-threshold machine vision embedded solution.

In terms of the development environment, it supports MicroPython, making the program code more concise during project development. The OV7740 image sensor it carries makes it an ideal choice for machine vision projects.

From a hardware configuration perspective, the device features two programmable buttons, a front-facing RGB LED indicator for status display, and a bottom-mounted HY2.0 x 4P interface and a TYPE-C interface for easy connection to the main control device. Additionally, it supports TF card expansion for memory, facilitating the use of relevant materials and model files.

Features

• Dual-core 64-bit RISC-V RV64IMAFDC (RV64GC) CPU / 400Mhz (Normal)
• Double-precision FPU
• 8MiB 64-bit on-chip SRAM
• Neural Network Processor (KPU) / 0.8Tops
• Programmable I/O Array (FPIOA)
• AES, SHA256 Accelerator
• Direct Memory Access Controller (DMAC)
• Supports MicroPython
• Firmware encryption support
• Onboard hardware resources:
  • Flash: 16M
  • Camera: OV7740
  • Buttons: 2
  • Status LED: WS2812 LED
  • Expansion card interface: TF card/Micro SD
  • Interface: HY2.0/compatible GROVE

Includes

• 1 x UnitV-OV7740
• 1 x HY2.0-4P Grove cable (20cm)
• 1 x USB Type-C cable (1m)

Applications

• Object detection/classification
• Real-time acquisition of target size and coordinates
• Real-time acquisition of detected target types
• Shape recognition
• Video recording

Specifications

Learn

KENDRYTE K210

Kendryte K210 is a system-on-chip (SoC) with integrated machine vision capabilities. Using TSMC's ultra-low-power 28nm advanced process, it features a dual-core 64-bit processor with excellent power efficiency, stability, and reliability. This solution aims for zero-threshold development, enabling rapid deployment into user products, empowering AI applications.

• Equipped with machine vision capabilities
• Better low-power vision processing speed and accuracy
• Features a convolutional neural network hardware accelerator KPU for high-performance convolutional neural network operations
• TSMC 28nm advanced process, temperature range -40°C to 125°C, stable and reliable
• Supports firmware encryption, difficult to crack using ordinary methods
• Unique programmable IO array, making product design more flexible
• Low voltage, lower power consumption compared to systems with similar processing capabilities
• 3.3V/1.8V dual voltage support, no need for level conversion, saving costs

This product features a dual-core 64-bit high-performance low-power CPU based on RISC-V ISA, with the following characteristics:

• Core count: Dual-core processor
• Processor width: 64-bit CPU 400MHz
• Nominal frequency: 400MHz
• Instruction set extension: IMAFDC
• Floating-point processing unit (FPU): Double precision
• Platform interrupt management: PLIC
• Local interrupt management: CLINT
• Instruction cache: 32KiB x 2
• Data cache: 32KiB x 2
• On-chip SRAM: 8MiB

OV7740

• Supported output formats: RAW RGB and YUV
• Supported image sizes: VGA, QVGA, CIF, or smaller sizes
• Supports sunspot elimination
• Supports internal and external frame synchronization
• Standard SCCB serial interface
• Digital video port (DVP) parallel output interface
• Embedded one-time programmable (OTP) memory
• On-chip phase-locked loop (PLL)
• Embedded 1.5 V regulator for the core
• Array size: 656 x 488
• Power supply: - Core: 1.5VDC ±5% - Analog: 3.3V ±5% - I/O: 1.7~3.47V
• Temperature range: - Operating: -30°C to 70°C - Stable image: 0°C to 50°C
• Output formats: - 8/10-bit raw RGB data - 8-bit YUV
• Lens size: 1/5"
• Input clock frequency: 6~27 MHz
• Sensitivity: 6800 mV / (Lux-sec)
• Maximum exposure interval: 502 x tROW
• Pixel size: 4.2μm × 4.2μm
• Image area: 2755.2μm × 2049.6μm

SD Card Test

Unit V currently cannot recognize all types of MicroSD cards. We have tested some common MicroSD cards, and the results are as follows.

PinMap

UnitV-OV7740

Model Size

Datasheets

• K210 Datasheet
• OV7740 Datasheet

Quick Start

Choose the development platform you want to use and check the corresponding tutorial & quick start guide.

• UnitV-OV7740 V-Function Guide
• UnitV-OV7740 V-Training Guide
• UnitV-OV7740 Maixpy Guide

UiFlow1

• UnitV-OV7740 UiFlow1 Docs

UiFlow2

• Coming soon...

USB Driver

Other

• UnitV-OV7740 with RoverC Track Ball Example

Video