The CM4Stack is an integrated micro host based on the

Raspberry Pi CM4 core board

, using the CM4104032 module with built-in WiFi, 4GB of memory, and 32GB eMMC. The host includes rich peripheral devices: a 2.0″ IPS-LCD screen with capacitive touch, a resolution of 320×240, 2 USB 3.2-A ports (pcie+ASM3042), a USB-C (2.0) interface that supports OTG and host power supply.

Also included is 1x HDMI interface, 1x Gigabit Ethernet interface (RJ45), 1x DC-JACK DC power input interface (12V@3A), 2x HY2.0-4-Pin expansion ports, which are I2C and UART interfaces respectively, built-in 2W speakers, equipped with AW88298 16-Bits I2S amplifier, 1x ATECC608B security encryption chip, 1 RTC chip BM8563, built-in active cooling fan and an aluminium alloy heat sink frame. This product supports DIN rail, wall hanging, and screw fixing methods in structure, and is suitable for industrial automation, smart homes, and IoT fields.

To learn more about the CM4Stack boot configuration, visit

CM4Stack Quick Guide

, or

https://docs.m5stack.com/en/quick_start/cm4stack

Features

High-performance embedded system: built-in multiple powerful chips and interfaces, equipped with a 2.0-inch LCD screen and touch function, capable of displaying high-quality videos and images.
Multiple interfaces and functions: including antenna interface, 2W speaker, HDMI interface, USB-C (2.0) interface, USB3.2 interface, Gigabit Ethernet interface (RJ45), I2C interface, serial port, and DC power input port, supporting various peripheral devices and data transmission methods.
Security performance: equipped with a security authentication chip AW32901ID-KEY (ATECC608B), capable of secure data transmission and storage.
Clock function: equipped with RTC chip BM8563, capable of clock function.
Heat dissipation design: equipped with a heat dissipation base and heat dissipation fan to ensure stable system operation for a long time.

Specifications

Resources	Parameters
CM4 Mainboard	CM4104032, processor: Broadcom BCM2711, quad-core Cortex-A72 64-bit SoC, clock speed 1.5 GHz, running memory (RAM): 4G, storage (eMMC): 32G
2.0″ LCD	Screen with touch function and ST7789V2 controller
Antenna Interface	Connector for an external antenna
Speaker	2W audio output with AW88298 driver
USB-C Port	USB 2.0 port with OTG function, powered by MP8759 and AW32901 controllers
I2C Interface	Integrated circuit interface for communication with other devices
Serial Port	Communication interface for transmitting and receiving serial data
DC Power Input	12V/3A DC power input connector
Gigabit Ethernet Port	RJ45 port for connecting to a gigabit Ethernet network
USB 3.2 Ports	Two USB 3.2 ports with ASM3042 controllers
Aluminum Heat Sink	DIN-rail mounted heat sink with a built-in cooling fan (ME1502)
Download Button	Button for entering download mode
HDMI Port	Connector for transmitting high-definition video and audio
RTC	Real-time clock module with BM8563
SY8003 and ME1502	Power management and control ICs
AW88298	Audio amplifier IC
MP8759 and AW32901	USB power delivery and type-C port control ICs
ID-KEY (ATECC608B)	Cryptographic authentication IC for secure communication
ASM3042	USB 3.2 host controller
BM8563	Real-time clock IC
WIFI	2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac
Product Size	59 x 46 x 44mm
Package Size	160mm x 107mm x 47mm
Product Weight	118.8g
Package Weight	353.4g