M5Camera
Description
M5Camera is a development board for image recognition. It features an ESP32(4M Flash + 520K RAM) chip and 2-Megapixel camera (OV2640).M5Camera offers plenty of storage, with an extra 4 Mbyte PSRAM. It also supports image transmission via Wi-Fi and debugging through USB Type-C port.
Features
- CP2104 USB-to-TTL converter
- ESP32-WROVER (PCB Antenna)
- WIFI image transmission
- OV2640 sensor
Include
- 1x M5Camera
- 4x LEGO block
- 1x Type-C USB(20cm)
Specifications
| Resources | Parameter |
|---|---|
| Flash | 4M |
| RAM | 4MB |
| Image Sensor | OV2640 |
| Maximum resolution | 2M pixel |
| Output format | YUV(422/420)/YCbCr422,RGB565/555,8-bit compressed data,8-/10-bit Raw RGB data |
| FOV | 65° |
| CCD Size | 1/4 inch |
| Net weight | 17g |
| Gross weight | 41g |
| Product Size | 40*48*11mm |
| Package Size | 75*45*30mm |
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 2MP, 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 seconds. not super fast.
EasyLoader
- After downloading the software, double-click to run the application, connect the M5 device to the computer through the data cable, select the port parameters, click "Burn" to start burning. (For M5StickC burning, please Set the baud rate to 750000 or 115200)
PinMap
Camera Interface PinMap
| *Interface* | *Camera Pin* | *M5Camera* |
|---|---|---|
| SCCB Clock | SIOC | IO23 |
| SCCB Data | SIOD | IO22 |
| System Clock | XCLK | IO27 |
| Vertical Sync | VSYNC | IO25 |
| Horizontal Reference | HREF | IO26 |
| Pixel Clock | PCLK | IO21 |
| Pixel Data Bit 0 | D2 | IO32 |
| Pixel Data Bit 1 | D3 | IO35 |
| Pixel Data Bit 2 | D4 | IO34 |
| Pixel Data Bit 3 | D5 | IO5 |
| Pixel Data Bit 4 | D6 | IO39 |
| Pixel Data Bit 5 | D7 | IO18 |
| Pixel Data Bit 6 | D8 | IO36 |
| Pixel Data Bit 7 | D9 | IO19 |
| Camera Reset | RESET | IO15 |
| Camera Power Down | PWDN | / |
| Power Supply 3.3V | 3V3 | 3V3 |
| Ground | GND | GND |
GROVE Interface
| *Grove* | *M5Camera* |
|---|---|
| SCL | IO13 |
| SDA | IO4 |
| 5V | 5V |
| GND | GND |
LED Interface
| LED | *M5Camera* |
|---|---|
| LED_Pin | IO14 |
The following tables are Reserved Chip Interfaces
BME280 Interface
I2C address 0x76.
| *BMP280* | *M5Camera* |
|---|---|
| SCL | IO23 |
| SDA | IO22 |
MPU6050 Interface
*I2C address 0x68.*
| *MPU6050* | *M5Camera* |
|---|---|
| SCL | IO23 |
| SDA | IO22 |
MIC(SPM1423) Interface
| *MIC(SPM1423)* | *M5Camera* |
|---|---|
| CLK | IO4 |
| DATA | IO2 |
NOTE:
- Camera Power Down pin does not need to be connected to ESP32 GPIO. Instead it may be pulled down to ground with 10 kOhm resistor.
View M5 camera series/product differences
Schematic
Power circuit
Chip peripheral circuit
USB to serial port part of the circuit
Related Link
Example
Firmware
Arduino
Code
** Serial communication-M5Core **（The serial communication routine is the communication between the camera and the M5Core.）
** MPU6050 **（Gyro Example after soldering MPU6050）
Source Code
Video
M5Camera Case - Image transmission between M5Camera and M5Core