Industrial Linux SBC

hexBLUE - fully equipped, energy-efficient SBC for industrial applications

hexBLUE combines the STM32MP13 application processor with an ESP32-C6 including a RISC-V real-time core. The board delivers OE/Yocto-based Linux computing, secure real-time capability, and state-of-the-art wireless connectivity in a compact footprint - optimized for long-lived industrial products from hexDEV GmbH.

STM32MP13 + ESP32-C6RISC-V real time and LinuxWi-Fi 6 · Thread · Matter-readySecure boot + OP-TEE
  • STM32MP13 + Yocto Linux REE: Rich execution environment for demanding edge software, prebuilt with Tempo2Market builds.
  • ESP32-C6 RISC-V core: Real-time control, Wi-Fi 6, BLE 5.4, Thread, and Matter-ready wireless modules.
  • Fieldbus and multimedia: CAN/LIN, RS-485, USB, Ethernet with PoE option, audio, display, and camera integration.
hexBLUE board on a white background

hexBLUE board

Secure boot chain meets OE/Yocto Linux REE

hexBLUE boots through a hardware-anchored secure boot chain, loads OP-TEE as the trusted execution environment, and combines it with an OE/Yocto-based Linux REE. The result is a layered stack for edge devices that protects applications while still providing an agile development environment.

Trusted execution and wireless connectivity

OP-TEE encapsulates key material, certificates, and PKI operations. In parallel, Wi-Fi 6, BLE 5.4, Thread, and Matter-ready wireless modules run alongside CAN, LIN, and RS-485 fieldbus interfaces.

Tempo2Market integration

OE/Yocto builds from Tempo2Market provide reproducible releases, CI/CD hooks, and remote update capabilities - ideal for payment and access solutions or root-of-trust projects.

Cooperating SoC architecture
STM32MP13 and ESP32-C6 orchestrated
The combination of STM32MP13 and ESP32-C6 brings deterministic tasks together with Linux applications. Standardized IPC channels connect RISC-V real-time functionality with userland apps and enable low latencies for gateways, controllers, and sensor hubs.
Wireless and fieldbus ready
Wi-Fi 6 · Thread · Matter-ready plus CAN/LIN/RS-485
hexBLUE integrates Wi-Fi 6, BLE 5.4, Thread, and optional Matter stacks while also offering CAN/LIN, RS-485, USB host/device, audio, display, and camera interfaces. That makes the board ready for both fieldbus nodes and multimedia terminals.
Industrial design
24/7 operation with PoE, temperature compensation, reference BoMs
Energy-efficient power design, temperature compensation, and PoE options enable 24/7 operation in the field. Reference BoMs and production guides accelerate OEM customization by hexDEV.

Secure boot chain with OP-TEE

A complete secure boot chain with the OP-TEE trusted execution environment interlocks the secure world operating system with the OE/Yocto-based Linux REE. Key material, certificates, and cryptographic operations are protected in the trusted world, while applications in Linux userland can be developed and updated freely - including remote updates via Tempo2Market.

  • Hardware root of trust, TPM, and HSM integrations
  • Secure firmware updates and provisioning paths
  • PKI-backed device identities for cloud and fieldbus scenarios

Use cases

hexBLUE scales from payment terminals to security-critical infrastructure.

Payment systemsMultimedia, display, audio, wireless, and secure payments
Access controlThread, Wi-Fi, and fieldbus integration for redundant security nodes
Root of trustSecure boot, OP-TEE, and key stores for critical infrastructure

hexBLUE datasheet

Find all specifications for processor, memory, fieldbus, wireless modules, and security features in the hexBLUE datasheet.

The PDF summarizes the hardware stack, reference I/Os, and boot and security paths for engineering and procurement teams.

Download datasheet (PDF)