PSRAM Camera Module (OV2640)

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Description

M5CameraX is a development board for image recognition. It features an ESP32(4M Flash + 520K RAM) chip and 2-Megapixel carmera(OV2640).M5Camera offers plenty of storage, with an extra 4 Mbyte PSRAM. It also supports image transmission via Wi-Fi and debuging through USB Type-C port.

The hardware comes preloaded software, programmed by ESP-IDF. It is an application to run Wi-Fi camera. The output image is size 600*800, since it’s 2-Maga camera, you sure can optimize the software to output the maximum size of photos.

what this software can do?

  • Power the board via USB type-C or GROVE
  • Use your phone to Wi-Fi scan an AP name start with ‘m5stack-‘ and click to connect this AP.
  • Open up web browser on your phone and visit 192.168.4.1
  • Then here comes the picture. Video is about 5-6 frames per senconds. not super fast.

The hardware also comes with some reserved weld pad, just in case you want put these chips back on board.

  • 9-axis gyroscope (MPU6050)
  • pressure sensor (BME280)
  • Analog MIC (SPQ2410)
  • Lipo Battery power pins

Please notice: There are 2 types of M5Camera

  • Model A & Model B
  • They have different circuits, can be identified by backside sticker
  • Model A is halt production. The new coming M5Camera is just Model B
  • In Model A circult design MPU6050 and camera sensor have I2C conflict, which means you can’t use both at the same time.
  • Model B have better performance on image quality and processing speed.

Product Features

  • ESP32 specifications
    • Dual-core Tensilica LX6 microprocessor
    • Up to 240MHz clock frequency
    • 4MB PSRAM
    • 4MB Flash memory
    • Integrated 802.11 BGN WiFi transceiver
    • Integrated dual-mode Bluetooth (classic and BLE)
    • Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)
  • CP2104 USB-to-TTL converter
  • ESP32-WROVER (PCB Antenna)
  • OV2640 sensor
    • Output Formats(8-bit):
      • YUV(422/420)/YCbCr422
      • RGB565/555
      • 8-bit compressed data
      • 8-/10-bit Raw RGB data
    • Maximum Image Transfer Rate according to specific format
      • UXGA/SXGA: 15fps
      • SVGA: 30fps
      • CIF: 60fps
    • Scan Mode: Progressive
  • Camera specifications
    • CCD size : 1/4 inch
    • Field of View : 65 degree
    • Maxmium Pixel: 2M
  • Sensor best resolution: 1600 * 1200
  • Dimension: 40 × 49 × 13mm

Include

  • 1x M5CameraX
  • 1x Wall-1515
  • 1x Type-C USB Cable
Documents
Learn

Schematic

Power circuit

Chip peripheral circuit

USB to serial port part of the circuit

 

 

More information

PinMap

There are two versions of M5Camera Unit: A Model and B Model.

Camera Interface PinMap

Interface Camera Pin M5Camera(A model) M5Camera(B model)
SCCB Clock SIOC IO23 IO23
SCCB Data SIOD IO25 IO22
System Clock XCLK IO27 IO27
Vertical Sync VSYNC IO22 IO25
Horizontal Reference HREF IO26 IO26
Pixel Clock PCLK IO21 IO21
Pixel Data Bit 0 D2 IO32 IO32
Pixel Data Bit 1 D3 IO35 IO35
Pixel Data Bit 2 D4 IO34 IO34
Pixel Data Bit 3 D5 IO5 IO5
Pixel Data Bit 4 D6 IO39 IO39
Pixel Data Bit 5 D7 IO18 IO18
Pixel Data Bit 6 D8 IO36 IO36
Pixel Data Bit 7 D9 IO19 IO19
Camera Reset RESET IO15 IO15
Camera Power Down PWDN see Note 1 see Note 1
Power Supply 3.3V 3V3 3V3 3V3
Ground GND GND GND

GROVE Interface

Grove M5Camera(A model) M5Camera(B model)
SCL IO13 IO13
SDA IO12 IO4
5V 5V 5V
GND GND GND

LED Interface

LED M5Camera(A model) M5Camera(B model)
LED_Pin IO14 IO14

The following tables are Reserved Chip Interfaces

BME280 Interface

It's IIC address is 0x76.

BME280 M5Camera(A model) M5Camera(B model)
SCL IO23 IO23
SDA IO22 IO22

MPU6050 Interface

It's IIC address is 0x68.

MPU6050 M5Camera(A model) M5Camera(B model)
SCL IO23 IO23
SDA IO22 IO22

MIC(SPM1423) Interface

MIC(SPM1423) M5Camera(A model) M5Camera(B model)
SCL IO2 IO2
SDA IO4 IO4

NOTE:

  1. We have several patterns of camera board, the following figures shows the main difference

    view click here.

    download click here.

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