EDA CM4MEDIA User manual

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
CM4MEDIA USER MANUAL
Shanghai EDA Technology Co.,Ltd
2023-07-11

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
Copyright Statement
ED-CM4MEDIA and its related intellectual property rights are owned by Shanghai EDA Technology Co.,
Ltd.
Shanghai EDA Technology Co., Ltd. owns the copyright of this document and reserves all rights. Without
the written permission of Shanghai EDA Technology Co., Ltd, no part of this document may be modified,
distributed or copied in any way or form.
Disclaimers
Shanghai EDA Technology Co., Ltd does not guarantee that the information in this manual is up to date,
correct, complete or of high quality. Shanghai EDA Technology Co., Ltd also does not guarantee the further
use of this information. If the material or non-material related losses are caused by using or not using the
information in this manual, or by using incorrect or incomplete information, as long as it is not proved that
it is the intention or negligence of Shanghai EDA Technology Co., Ltd, the liability claim for Shanghai EDA
Technology Co., Ltd can be exempted. Shanghai EDA Technology Co., Ltd expressly reserves the right to
modify or supplement the contents or part of this manual without special notice.

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
Contents
1Product Overview............................................................................................................................... 5
1.1 Target Application .................................................................................................................... 5
1.2 Specifications and Parameters ................................................................................................ 5
1.3 System Diagram ...................................................................................................................... 6
1.4 Functional Layout .................................................................................................................... 7
1.5 Packing List ............................................................................................................................. 8
1.6 Order Code.............................................................................................................................. 8
2Quick Start ......................................................................................................................................... 9
2.1 Equipment List......................................................................................................................... 9
2.2 Hardware Connection.............................................................................................................. 9
2.3 First Start............................................................................................................................... 10
2.3.1 Raspberry Pi OS (Desktop) ........................................................................................ 10
2.3.2 Raspberry Pi OS (Lite)................................................................................................ 13
3Wiring Guide .................................................................................................................................... 14
3.1 Panel I/O ............................................................................................................................... 14
3.1.1 micro-SD Card ............................................................................................................ 14
4Software Operation Guide................................................................................................................ 15
4.1 USB 2.0 & USB 3.0 ............................................................................................................... 15
4.1.1 Check USB Device Information .................................................................................. 15
4.1.2 USB Storage Device Mounting ................................................................................... 15
4.2 Ethernet Configuration........................................................................................................... 16
4.2.1 Gigabit Ethernet.......................................................................................................... 16
4.2.2 Using The Network Manager Tool To Configure.......................................................... 16
4.2.3 Configuration With dhcpcd Tool .................................................................................. 18
4.3 WiFi ....................................................................................................................................... 19
4.3.1 Enable WiFi ................................................................................................................ 19
4.3.2 External antenna/Internal PCB antenna ..................................................................... 20
4.3.3 AP and bridge mode ................................................................................................... 20
4.4 Bluetooth ............................................................................................................................... 20
4.4.1 Usage ......................................................................................................................... 20
4.4.2 Example...................................................................................................................... 21
4.5 RTC ....................................................................................................................................... 22
4.6 Multimedia Interface .............................................................................................................. 23
4.6.1 Microphone ................................................................................................................. 23
4.6.2 Camera ....................................................................................................................... 24
4.6.3 Check The Sound Card .............................................................................................. 24
4.6.4 Recording ................................................................................................................... 24
4.6.5 Playback ..................................................................................................................... 24
5Operating System Installation .......................................................................................................... 25
5.1 Image Download ................................................................................................................... 25
5.2 SSD Burning Image............................................................................................................... 25
5.2.1 Tool Download ............................................................................................................ 25

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
5.2.2 Burn ............................................................................................................................ 25
6FAQ .................................................................................................................................................. 26
6.1 Default Username and Password.......................................................................................... 26
7About us ........................................................................................................................................... 26
7.1 About EDATEC...................................................................................................................... 26
7.2 Contact us ............................................................................................................................. 26

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
1 Product Overview
ED-CM4MEDIA is a multimedia computer based on Raspberry Pi Compute Module 4 (CM4 for short). It
makes full use of CM4' s structural flexibility to solve the heat dissipation problem of CPU, wireless module
and PMU, improves the reliability of wireless communication through external WIFI/BT antenna, adds
WM8960 chip, supports dual speaker playback, has microphone, 3.5mm headphone jack and is equipped
with SONY IMX219 eight-megapixel sensor to meet the daily photo requirements.
1.1 Target Application
Multimedia entertainment
AI development
Intelligent instrument
Panoramic display
Intelligent life
1.2 Specifications and Parameters
Function
Parameters
CPU BCM2711 4 core, ARM Cortex-A72(ARM v8), 1.5GHz, 64bit CPU
Memory 1GB / 2GB / 4GB / 8GB option
eMMC flash 8GB / 16GB / 32GB option
SD card 8GB / 16GB / 32GB option
SSD 128GB / 256GB option
Ethernet 1x Gigabit Ethernet
WiFi / Bluetooth 2.4G / 5.8G Dual band WiFi, bluetooth5.0
HDMI 1x standard HDMI
Micro-HDMI 1x Micro-HDMI
USB Host 2x USB 3.0 Type A, 1x USB 2.0
Mini PCIe 1-lane PCIe 2.0, Highest support 5Gbps（default use SSD）
Real time clock 1x RTC
Speaker 2x Speaker
Microphone 1x Microphone
LED indicator Blue LED as power indicator and status indicator.
Power input 5V@3A
Dimensions 100(length) x 100(wide) x 19(high) mm
Case CNC cutting aluminum alloy shell

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
Function Parameters
Antenna accessory
Support optional WiFi/BT external antenna, which has passed wireless
authentication together with Raspberry Pi CM4, and optional 4G external
antenna.
Working
environment temperature Run at full speed at 0 ~ 60 ℃ambient temperature.
Operation system compatible with official Raspberry Pi OS, provides BSP software support
package, and supports online installation and update of APT.
1.3 System Diagram

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
1.4 Functional Layout
Item
Function Description
Item
Function Description
A1 Standard 3.5mm headphone jack A2 RJ45 Gigabit network port
A3 USB 3.0 A4 USB 2.0
A5
Micro-SD card slot
A6
Micro-HDMI port
A7
Standard HDMI port
A8
Type-C power port
A9
CM4 slot
A10
Power button

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
Item Function Description Item Function Description
B1 Onboard microphone B2 5W speaker
B3 5W speaker B4 CR1220 button cell, powered for RTC.
B5 Mini PCIe B6 Micro SIM card slot
1.5 Packing List
1x CM4 Media
1x WIFI/BT antenna
[option] 1x 4G antenna
1.6 Order Code

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
2 Quick Start
This chapter introduces the startup of CM4 Media and some startup settings.
2.1 Equipment List
- 1x CM4 Media
- 1x WIFI/BT antenna
- 1x mouse
- 1x keyboard
- 1x HDMI display
- 1x HDMI connect cable
- 1x Network cable
- 1x 5V@3A Type-C power supply
2.2 Hardware Connection
1. Install the antenna to the antenna connector at the top of the equipment.
2. Insert the network cable, keyboard and mouse.
3. Plug in HDMI and connect the other end to the monitor.
4. Power on the monitor
5. Plug in the power cord, press the power switch button, and the system will start.
6. The power switch LED lights up, which means that the power supply is normal.

User Manual of CM4 Media
EDA Technology Co.,LTD– Electronics Development Accelerator
7. Wait for the Raspberry logo to appear in the upper left corner of the screen.
8. After the system is started, enter Desktop. If prompted to log in, please enter the user name: pi and
the default password: raspberry.
2.3 First Start
CM4 Media plugs into the power cord and presses the power switch, and the system will start up.
2.3.1 Raspberry Pi OS (Desktop)
After the Desktop version of the system is started, directly enter the desktop.
If you use the official system image, and the image is not configured before burning, the Welcome to
Raspberry Pi application will pop up and guide you to complete the initialization setting when you start it
for the first time.