EDATEC CM4 Sensing industrial computer offers CAN bus, RS485, and RS232 interfaces

EDATEC CM4 Sensing is a compact industrial computer based on the Raspberry Pi Compute Module 4 (CM4) with multiple RS485, RS232, and CAN bus interfaces, an HDMI port, two USB ports, Gigabit Ethernet, and optional WiFi, Bluetooth, and/or 4G LTE connectivity.

The industrial mini PC can operate in the -25 to 70°C temperature range, supports 8 to 28V DC wide voltage input, includes an RTC, and the single board computer also features a MIPI DSI interface to connect the official Raspberry Pi 7-inch display as well as an FPC interface with HDMI and USB touch.

 

Edatec CM4 Sensing industrial computer

EDATEC CM4 Sensing specifications:

  • SoM – Raspberry Pi CM4 module with Broadcom BCM2711 quad-core Cortex-A72 SoC, 1GB to 8GB LPDDR4 RAM, and up to 32GB eMMC flash
  • Storage – MicroSD card socket for data storage. It can work with the eMMC flash on the CM4 module
  • Display I/F
    • 1x HDMI 2.0 Type-A port up to 4Kp60;
    • 1x FPC HDMI touch display interface
    • 1x FPC MIPI DSI touch display interface
  • Networking
    • Gigabit Ethernet RJ45 port
    • Optional dual-band 802.11 b/g/n/ac WiFi 5 and Bluetooth 5.0 BLE module (on CM4) with external WiFi antenna
    • Optional 4G/ LTE with optional GPS support with NanoSIM card slot and external 4G antenna
  • USB – 2x USB 2.0 Type-A ports, internal micro USB port for eMMC flashing
  • Serial
    • 4x RS485 interfaces via 3-pin terminal block
    • 1x RS232 interface via 3-pin terminal block
    • 1x CAN bus via 3-pin terminal block
  • Expansion Interface – Mini PCIe socket with 1-lane PCIe and USB 2.0 for 4G module
  • Misc
    • RTC with CR1220 backup battery
    • Buzzer
    • LEDs – Power (red), status (green), and 4G network (blue)
  • Power Supply
    • 8 to 28V DC input via DC jack or optional 2-pin terminal block
    • 5V/1A DC power output via internal 2-pin WTB connector that can power the official Raspberry Pi 7-inch touch display if needed
  • Temperature Range – -25 to 70°C (Note: full speed in the -25 ~ 60°C range)
  • Dimensions – 103 x 73 x 32 mm

Edatec CM4 Sensing industial board 4G LTE RS485

Industrial SBC Raspberry Pi CM4

The company offers wall and DIN rail mounting options for the industrial computer. The EDATEC CM4 Sensing system ships with Raspberry Pi OS Desktop 32-bit running from the eMMC flash in the Raspberry Pi CM4 module, but it is compatible with all 32-bit and 64-bit Raspberry Pi OS versions, including the Lite image, as well as openEuler OS developed in China.

The Raspberry Pi image includes a BSP for the microSD card, RTC, RS232, RS485, CAN, DSI, and other specific hardware functions. You’ll find it together with other resources on a fairly detailed documentation website. The BSP can also be installed manually on the stock Raspberry Pi OS image with the following commands:


Raspberry Pi CM4 serial ports RS232 RS485 CAN Bus

Several variants of the EDATEC CM4 Sensing industrial computer are available due to the many options, and you’ll find some of them on Aliexpress for $116.80 to $213. With SKU names like ED-CM4SEN10-1108-C and ED-CM4SEN10-1832-4C, it may be difficult to understand what you get exactly, but the naming convention can be understood with the little illustration below.

ED CM4SEN nomenclature

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