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CM4 Sensing

CM4 Sensing

Classic Industrial Computer with a variety of sensor interfaces, dedicated to environmental monitoring and data acquisition.

Key Featured
  • Broadcom BCM2711, quad core ARM Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
  • Up to 8GB LPDDR4 RAM and 32GB eMMC storage
  • Support Micro SD card storage expansion
  • 1 x Gigabit Ethernet, 1 x HDMI, 2 x USB 2.0
  • 1 x RS232, 4 x RS485, 1 x CAN
  • 2.4GHz and 5GHz dual-band Wi-Fi, Bluetooth and 4G LTE
  • Wide voltage power input range of DC 8V~28V, built-in RTC and Buzzer
  • Metal case, compatible with DIN-rail installation
  • The product verified with CE, FCC, RoHS, ICES certification

CM4 Sensing is an industrial computer tailored for IoT and data acquisition applications, harnessing the power of the Raspberry Pi Compute Module 4.

This compact system is designed to address thermal challenges often faced by the CPU, wireless module, and PMU, by incorporating structural flexibility and external antennas that enhance wireless communication reliability.

Offering a range of RAM options from 1GB to 8GB and eMMC storage capacities of 8GB, 16GB, or 32GB, the CM4 Sensing is adaptable to various application demands.

For applications requiring substantial data storage, the system supports the use of eMMC for operating system and application data, while a microSD card can be utilized for larger user data storage, providing both capacity and cost-effectiveness.

CM4 Sensing is equipped with a 4G/LTE module, four channels of RS485, one channel each of RS232 and CAN, and a Gigabit Ethernet port.

It also features an alarm buzzer, a battery-powered real-time clock, and supports dual-band WiFi and Bluetooth.

The DSI interface is compatible with the Raspberry Pi's official 7" touch display, and the system can power the display through a 5V/1.5A output.

Additionally, the standard HDMI interface is capable of delivering 4K HD video output.

Two channels of USB 2.0 and one Micro USB 2.0 interface are provided, with the Micro USB port dedicated to updating the system image.

The CM4 Sensing supports a wide range of power inputs from 8V to 28V DC, ensuring flexibility in power source selection.

Its dimensions are slightly larger than the Raspberry Pi 4 Model B, with a heat sink that ensures excellent cooling performance for the CPU, wireless module, and PMU, allowing the system to operate reliably even in high-temperature environments.

CM4 Sensing has been tested to operate reliably in ambient temperatures ranging from -25 to 60°C.

It offers convenient installation options with four M2.5 screw holes on its bottom case, supporting both DIN rail and wall mounting.

The device is certified with CE/FCC, ensuring compliance with international safety and emissions standards.

CM4 Sensing comes pre-installed with 32-bit Raspberry Pi OS with Desktop and is compatible with both 32-bit and 64-bit versions, supporting Lite and Desktop setups. It also allows for online installation and upgrades using the APT tool.

The device's metal case, equipped with a side aluminum alloy heat sink and antenna holes, provides additional protection and ensures reliable operation in diverse industrial settings.

Explore in-depth reviews and coverage of CM4 Sensing by leading international media outlets! Click the links to learn more:

CNX SOFTWARE

LinuxGizmos

HS CODE

HS CODECOO
8471504090CN


Industrial Computer Feature Selection Guide


Function
Classification
IPC2000IPC2100IPC2200IPC2400IPC2500IPC2600IPC3020IPC3100IPC3630CM4 SENCM4 INDCM4 NanoCM4 MEDCM4 IO
CPUCM4CM4CM4CM4CM4CM4Pi 5CM5CM5CM4CM4CM4CM4CM4
RAM1/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR42/4/8/16GB LPDDR4X2/4/8GB LPDDR4X2/4/8/16GB LPDDR4X1/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR41/2/4/8GB LPDDR4
Storage8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC-16/32/64GB eMMC16/32/64GB eMMC8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC8/16/32GB eMMC
Micro SD Card
-SSDSSD-SSDSSDSSDSSDSSDSSD-SSDSSDSSD
Wireless2.4GHz & 5GHz dual-band WiFi
Bluetooth 5.0 / Bluetooth Low Energy (BLE)
-4G4G-5G4G-4G4G4G4G-4G4G
Interface1GigE x 11GigE x 11GigE x 31GigE x 11GigE x 31GigE x 11GigE x 11GigE x 11GigE x 11GigE x 11GigE x 11GigE x 11GigE x 11GigE x 1
-100Mbit x 1---100Mbit x 1-100Mbit x 1100Mbit x 1-100Mbit x 1---
USB 2.0 x 1USB 2.0 x 2USB 2.0 x 2USB 2.0 x 1USB 2.0 x 2USB 2.0 x 2USB 2.0 x 2USB 2.0 x 2USB 2.0 x 2USB 2.0 x 2USB 2.0 x 2USB 2.0 x 1USB 2.0 x 1USB 2.0 x 2
USB 3.0 x 2-USB 3.0 x 1USB 3.0 x 2--USB 3.0 x 2----USB 3.0 x 2USB 3.0 x 2USB 3.0 x 3
-RS232 ≤ x 2-RS232 ≤ x 3-RS232 ≤ x 2RS232 x 1RS232 ≤ x 2RS232 ≤ x 2RS232 x 1RS232 x 1---
-RS485 ≤ x 4-RS485 ≤ x 4-RS485 ≤ x 4RS485 x 1RS485 ≤ x 4RS485 ≤ x 4RS485 x 4RS485 x 2---
HDMI x 1HDMI x 1HDMI x 1HDMI x 1HDMI x 1CAN ≤ x 2--CAN ≤ x 2CAN x 1----
DSI/CSIDSI/CSIDSI/CSIDSI/CSI-HDMI x 1HDMI x 2HDMI x 1HDMI x 1HDMI x 2HDMI x 2HDMI x 2HDMI x 2HDMI x 2
-----DSI/CSIDSI/CSIDSI/CSIDSI/CSIDSI/CSIDSI/CSIDSI/CSI-DSI/CSI
-----DI/DO ≤ x 8--DI/DO ≤ x 8-DI/DO---
----------ADC---
otherRTC, CR1220RTC, CR1220RTC, CR1220RTC, CR1220RTC, CR1220RTC, CR1220RTC, CR1220RTC, CR1220 RTC, CR1220RTC, CR1220 RTC, CR1220RTC, CR1220RTC, CR1220RTC, CR1220
-Watchdog
Timer
Watchdog
Timer
-Watchdog
Timer
Watchdog
Timer
-Watchdog
Timer
Watchdog
Timer
Watchdog
Timer
Watchdog
Timer
Watchdog
Timer
Watchdog
Timer
Watchdog
Timer
------------High Quality
Stereo CODEC
-
Operating-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃-25℃~60℃0°C~ 60°C0°C~ 60°C
MechanicaFanless Design-
MountingDIN & WallDIN & WallDIN & WallDIN & WallDesktopDIN & WallDesktopDIN & WallDIN & WallDesktopDesktopDesktopDIN & WallDIN & Wall
Power Input
(DC)
9V~28V9V~36V9V~36V9V~28V9V~36V9V~36V5V9V~36V9V~36V9V~28V9V~36V7V~18V5V12V


System Diagram
cm4sen1
Specification
System
CPUBroadcom BCM2711, quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
VPUH.265 (HEVC), up to 4Kp60 decode
H.264, up to 1080p60 decode, 1080p30 encode
GPUOpenGL ES 3.1 & Vulkan 1.0
MemoryOptions for 1GB, 2GB, 4GB, 8GB LPDDR4-3200 SDRAM
StorageOptions for 8GB, 16GB, 32GB eMMC storage
Micro SD card (user storage expansion)
Software
Operating System Raspberry Pi OS (Desktop) 32-bit
Raspberry Pi OS (Lite) 32-bit
Raspberry Pi OS (Desktop) 64-bit
Raspberry Pi OS (Lite) 64-bit
Front I/O
Power1 x DC IN, DC Jack connector, supporting 8V~28V input.
RS2321 x RS232 port, 3-Pin 2.5mm pitch phoenix terminals, the signal is defined as GND/TX/RX.
CAN1 x CAN port, 3-Pin 2.5mm pitch phoenix terminals, the signal is defined as GND/CL/CH.
RS4854 x RS485 ports, 12-Pin 2.5mm pitch phoenix terminals, the single signal is defined as GND/A/B.
Rear I/O
SD Card Slot1 x Micro SD card slot, using to install Micro SD card for storing user data.
SIM Card Slot1 x Nano SIM card slot, using to install Nano SIM card for getting 4G signal.
HDMI1 x HDMI port, Type-A connector. It is compatible with HDMI 2.0 standard and supports 4K 60Hz.
USB 2.02 x USB 2.0 ports, Type-A connector, supporting up to 480Mbps transmission rate.
1000M Ethernet1 x adaptive 10/100/1000M ethernet port, RJ45 connector. It can be used to access the network
Side I/O
Antenna2 x SMA ports (optional), using to connect 4G antenna and Wi-Fi/BT antenna.
Buttons and Indicators
Power1 x red power indicator, which is used to check the status of device power-on and power-off.
Status1 x green system indicator, which is used to check the working status of device.
Internal I/O
Micro USB1 x Micro USB port, supporting to flash to eMMC for the system.
5V 1A1 x DC OUT, 2-Pin 1.0mm pitch connector, support 5V 1A output. These pins are defined as GND/5V.
HDMI1x FPC HDMI, 40-Pin 0.5mm pitch FPC connector, which can be reserved to connect extended LCD, supports USB/I2C touch screen and backlight adjustment.
DSI1 x FPC DSI, 30-Pin 0.5mm pitch FPC connector, which can be reserved to connect extended LCD, supports USB/I2C touch screen and backlight adjustment.
Expansion Functions
RTCRTC with CR1220 battery backup, which can ensure that the system clock is not affected by device power-off.
Note: A CR1220 battery is provided by default in China.
BuzzerA tip or an abnormity can be configurated according to actual application, which realizes the alarm function.
Electrical Characteristics
Input Voltage8V ~ 28V DC
Power Consumption18W (Max)
Mechanical Characteristics
Dimensions102mm x 73mm x 35.2mm (WxDxH, DIN-rail bracket and antenna are not included.)
Weight500g
InstallationDIN-rail installation
Wireless
Wi-Fi/Bluetooth
(optional)
2.4GHz & 5GHz dual-band Wi-Fi and Bluetooth with antenna.
  • 2.4GHz Wi-Fi: Compatible with IEEE 802.11 b/g/n
  • 5GHz Wi-Fi: Compatible with IEEE 802.11 a/n/ac
  • The Bluetooth supports 2402MHz ~ 2480MHz frequency
4G (optional)

Connect with various 4G LTE modules through the Mini PCIe interface, with antenna.

  • EC20-CE Module (China/India)
    • LTE FDD: B1/B3
    • LTE TDD: B38/B39/B40/B41
    • TDSCDMA: B34/B39
    • WCDMA: B1
    • CDMA 1x/EVDO: BC0
    • GSM: 900/1800MH
  • EC25-AFX Module (North America)
    • LTE-FDD:B2/B4/B5/B12/B13/B14/B66/B71
    • LTE-TDD
    • WCDMA: B2/B4/B5
    • GSM/EDGE
  • EC25-AUX Module (Latin America/Australia/New Zealand)
    • LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B28
    • LTE-TDD: B40
    • WCDMA: B1/B2/B4/B5/B8
    • GSM/EDGE: B2/B3/B5/B8
  • EC25-EUX Module (Europe/Middle East/Africa/Thailand)
    • LTE-FDD: B1/B3/B7/B8/B20/B28A
    • LTE-TDD: B38/B40/B41
    • WCDMA: B1/B8
    • GSM/EDGE: B3/B8
Environmental & Regulatory
Operating Temperature-25°C ~ 60°C
Storage Temperature-25°C ~ 60°C
Ambient humidity5% ~ 95% (non-condensing)
Certifications
  • FCC
    • FCC 47 CFR Part 15 Subpart B
  • CE
    • EN IEC 62368-1/EN IEC 62311/EN IEC 61000-3-2/EN IEC 61000-3-3
    • EN 55032/EN 55035
    • EN 301 489-1/EN 301 489-3/EN 301 489-17/EN 301 489-52
    • EN 301 328/EN 301 440/EN 301 511/EN 301 908-1/EN 301 908-2
Mechanicals

Unit: mm

cm4sen2
Ordering Code
cm4sen3
Docs
Type Title Publish Time
Datasheet ED-CM4SEN Datasheet 2024-04-10
Manual ED-CM4SEN User Manual 2024-04-10
OS ED-CM4SEN Installing OS 2024-04-10
Product Change Note CM4 Sensing PCN-en 2024-04-10
Software Optimization for CAN bus abnormality-en 2024-04-10
Errata Update 4G Module Firmware 2024-04-10
CE Certification CM4 Sensing CE Certification 2024-04-10
CE Report CM4 Sensing CE Report 2024-04-10
RoHS Certification CM4 Sensing RoHS Certification 2024-04-10
RoHS Report CM4 Sensing RoHS Report 2024-04-10
FCC Certification CM4 Sensing FCC Certification 2024-04-10
FCC Report CM4 Sensing FCC Report 2024-04-10
ICES Certification CM4 Sensing ICES Certification 2024-04-10
ICES Report CM4 Sensing ICES Report 2024-04-10
EU Declaration CM4 Sensing EU Declaration 2024-04-10
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EDATEC

Started in 2017, EDATEC has been certified as one of the global design partners of Raspberry Pi since 2018, providing Raspberry Pi based industrial computers design and manufacturing services for global customers.

  • Building 29, No. 1661, Jialuo Road, Jiading District, Shanghai.
  • CN: +86-18217351262 (Iris Zhou)
    US: +1 859-653-0800 (Randall Restle)
  • support@edatec.cn
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