PSRAM Camera Module (OV2640)

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

• Datasheet - ESP32 - OV2640

Learn

• Face recognition

• Serial communication-M5CameraX

• Serial communication-M5Core（The serial communication routine is the communication between the camera and the M5Core.）

• QRcode

• MPU6050（Gyro Example after soldering MPU6050）

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

InterfaceCamera PinM5Camera(A model)M5Camera(B model)SCCB ClockSIOCIO23IO23SCCB DataSIODIO25IO22System ClockXCLKIO27IO27Vertical SyncVSYNCIO22IO25Horizontal ReferenceHREFIO26IO26Pixel ClockPCLKIO21IO21Pixel Data Bit 0D2IO32IO32Pixel Data Bit 1D3IO35IO35Pixel Data Bit 2D4IO34IO34Pixel Data Bit 3D5IO5IO5Pixel Data Bit 4D6IO39IO39Pixel Data Bit 5D7IO18IO18Pixel Data Bit 6D8IO36IO36Pixel Data Bit 7D9IO19IO19Camera ResetRESETIO15IO15Camera Power DownPWDNsee Note 1see Note 1Power Supply 3.3V3V33V33V3GroundGNDGNDGND

GROVE Interface

GroveM5Camera(A model)M5Camera(B model)SCLIO13IO13SDAIO12IO45V5V5VGNDGNDGND

LED Interface

LEDM5Camera(A model)M5Camera(B model)LED_PinIO14IO14

The following tables are Reserved Chip Interfaces

BME280 Interface

It's IIC address is 0x76.

BME280M5Camera(A model)M5Camera(B model)SCLIO23IO23SDAIO22IO22

MPU6050 Interface

It's IIC address is 0x68.

MPU6050M5Camera(A model)M5Camera(B model)SCLIO23IO23SDAIO22IO22

MIC(SPM1423) Interface

MIC(SPM1423)M5Camera(A model)M5Camera(B model)SCLIO2IO2SDAIO4IO4

NOTE:

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

   view click here.

   download click here.