M5Core GRAY¶

Description¶

M5Core GRAY is a development kit based on ESP32 chip composed of a gray M5Core and a Bottom Base board. You can even program The M5Core GRAY through Blockly, Arduino or MicroPython.

The M5Core GRAY equips ESP32 with everything necessary to program. It also features a MEMS Chip(MPU9250), and a TFT LCD, so you can create a 3D remote gesture controller, a simple "Leap Motion" via M5Core GRAY in a day in stead of couple weeks and so on.

This is a Bottom board on the back of M5Core. It's designed for expanding gpio on M-Bus besides I2S Pins(GPIO0, GPIO12, GPIO13, GPIO15, GPIO34)for DIY. Each gpio on M-Bus is expanded as pin and port for convenience and flexibility.

Feature¶

Programming Support: UIFlow, MicroPython and Arduino
TF Card Support(Up to 16GB)

PinMap¶

MainBoard Pinmap¶

LCD & TF Card

LCD Pixel：320x240 Maximum storage of TF Card: 16GB

ESP32 Chip	GPIO23	GPIO19	GPIO18	GPIO14	GPIO27	GPIO33	GPIO32	GPIO4
ILI9341(LCD Driver)	/	MISO	CLK	CS	DC	RST	BL
TF Card	MOSI	MISO	CLK					CS

Button & Speaker

ESP32 Chip	GPIO39	GPIO38	GPIO37	GPIO25
Button	BUTTON A	BUTTON B	BUTTON C
Speaker				Speaker Pin

GROVE A & IP5306

Power Management IC (IP5306) is a custom I2C version, and the IIC address of IP5306 is 0x75. Click here for view register manual.

ESP32 Chip	GPIO22	GPIO21	5V	GND
GROVE A	SCL	SDA	5V	GND
IP5306	SCL	SDA	5V	GND

9-axis IMU sensor(MPU9250)

I2C Address: 0x68

ESP32 Chip	GPIO22	GPIO21	5V	GND
MPU9250	SCL	SDA	5V	GND

M5GO Base Pinmap¶

GROVE B

ESP32 Chip	GPIO36	GPIO26	5V	GND
GROVE B	GPIO36	GPIO26	5V	GND

GROVE C

ESP32 Chip	GPIO16	GPIO17	5V	GND
GROVE C	RXD	TXD	5V	GND

LED Bar & MicroPhone

ESP32 Chip	GPIO15	GPIO34
LED Bar	SIG Pin
MicroPhone		MIC Pin

PARAMETER¶

M5Core Source	Parameter
ESP32	240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
Flash	16MB (old model: 4MB)
Input	5V @ 500mA
Interface	TypeC x 1, GROVE(I2C+I/0+UART) x 1
LCD	2 inch, 320x240 Colorful TFT LCD, ILI9342
Speaker	1W-0928
Microphone	MEMS Analog BSE3729 Microphone
LED	SK6812 3535 RGB LED x 10
MEMS	MPU9250
Battery	550mAh @ 3.7V, inside vb
Op.Temp.	32°F to 104°F ( 0°C to 40°C )
Size	54 x 54 x 12.5 mm
C.A.S.E	Plastic ( PC )
Weight	120g with bottom, 100g only core

NOTE:

We have several kinds of Cores, the following figures show the main differece with them.

If you want to view the detailed defference with them, please click here.
If you want to download the detailed defference with them, please click here.