Raspberry Pi CM4-based industrial panel PC adds 4G LTE, RS232 and RS485, M.2 NVMe SSD

EDATEC ED-HMI2120-101C is a Raspberry Pi CM4-based industrial panel PC with a 10.1-inch capacitive touchscreen display with plenty of interfaces to cater to a wide range of use cases from robotics to energy management and industrial automation.

The panel PC builds upon the ED-HMI2020-101C introduced just a few months ago, but adds a range of features with dual Ethernet, RS485 and RS232 interfaces, and optional supports for an M.2 NVMe SSD and 4G LTE cellular connectivity. The device now supports an even wider DC input range from 9V to 36V and provides three 12V DC outputs to power external hardware such as an additional LCD.

ED-HMI2120-101C specifications (with highlights in bold and strikethrough showing the differences against the earlier ED-HMI2020-101C model):

• System-on-Module (SoM) – Raspberry Pi CM4
  • SoC – Broadcom BCM2711
    • CPU – Quad-core Cortex-A72 processor @ 1.5GHz
    • GPU – VideoCore VI conformant with OpenGL ES 3.1 & Vulkan 1.2
    • VPU
      • 4Kp60 H.265 video decoder
      • 1080p60 H.264 video decoder
      • 1080p30 H.264 video encoder
  • System Memory – 1GB, 2GB, 4GB, 8GB LPDDR4-3200 SDRAM
  • Storage – 8GB, 16GB, 32GB eMMC flash
  • Wireless – Optional WiFi 5 and Bluetooth 5.0 module
• Storage
  • MicroSD card slot
  • 4KB EEPROM
  • Optional M.2 NVMe 2030 or 2242 SSD via B-key socket
    
• Display
  • 10.1″ WSVGA TFT LCD display with 1280×800 resolution, 16.7M colors
  • Active Area – 135.36 mm(H) x 216.576 mm(V)
  • Backlight – LED
  • MTBF – > 30,000h
  • Pixel Pitch – 0.169 x 0.169mm
  • Luminance – 350cd/m^2
  • Contrast Ratio – 1000:1
  • Response Time – 30ms
  • Viewing Angle (H/V) – 80°/80°
  • 10-point capacitive touch screen with >=85% transmittance, I2C controller
  • Surface Hardness – 6H
• Video Output
  • HDMI 2.0 port up to 4Kp60
  • 40-pin FPC HDMI connector for “extended LCD” with support for USB/I2C touch screen and backlight adjustment.
• Camera – Built-in 8MP front-facing camera
• Audio
  • 4Ω/5W stereo speakers
  • 1x Audio In/Stereo out
  • 3.5mm audio jack with MIC IN and LNE OUT.
  • Note: When a headphone is connected, the audio output switches to the headphone, when no headphone is connected, the audio output switches to the speaker
• Networking
  • Gigabit Ethernet RJ45 port with optional PoE
  • 10/100M Ethernet RJ45 port
  • Optional WiFi and Bluetooth on SoM plus 1x SMA antenna connector
  • Optional 4G LTE module with SIM card and 1x SMA antenna connector
• USB
  • 2x USB 3.0 Type-A ports
  • 2x USB 2.0 Type-A ports
  • 5-pin USB 2.0 FPC connector
  • Micro USB 2.0 port to flash the eMMC flash
• Serial – 2x RS485, 2x RS232 via terminal blocks
• Expansion
  • 40-pin GPIO header for Raspberry Pi CM4 I/Os, compatible with expansion modules
• H/W Security – Unnamed hardware authentication chip
• Misc
  • Reset and Rpiboot (eMMC flash) buttons
  • Power LED (Red), status “ACT” LED (Green), 4G LTE LEDs for signal strength, user LED (green), COM1-COM4 LEDs
  • RTC + CR1220 battery installed during production
  • Buzzer
  • Watchdog timer
• Power Supply
  • 9V to 36V DC input via power barrel jack with over-current, over-voltage, reverse connection, and surge protection
  • 3x 2-pin 12V DC/1A outputs for “extended LCD”
  • Power consumption – Up to 25 Watts (the previous model is up to 20 Watts)
    
• Dimensions – 258 x 172 x 42 mm (not including the antenna)
• Weight – 1.2 kg (the previous model was 1.1 kg)
• Temperature Range – Operating: 0°C to 50°C; storage: -10°C to 60°C
• Humidity – 20% to 90% 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

As shown in the long specifications and block diagram above, the panel PC’s design is starting to get rather complex with so many features, but I’d assume EDATEC must have had requests from their customers to add the extra features within the panel PC.

Just like the previous model, the ED-HMI2120-101C industrial panel PC runs Raspberry Pi OS on the Raspberry Pi CM4 module with extra drivers for features that are not supported out of the box by the default OS. As noted in the previous article, the display does not have any ingress protection (IP) rating so it’s not suitable in environments where the front panel may be exposed to liquids as with some competing RPi CM4 panel PCs such as the ComfilePi CPi-C070WR4C or WIN Enterprises PL-50300 which are rated IP67.

EDATEC sells samples of the ED-HMI2120-101C on Aliexpress for $269 plus shipping although it’s unclear which exact configuration they are selling there…  More information may be found on the product page.

Jean-Luc Aufranc (CNXSoft)

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.

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