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IOTA Distributed Ledger Technology software expansion for STM32Cube

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Product overview


The X-CUBE-IOTA1 expansion software package for STM32Cube runs on the STM32 and includes middleware to enable the IOTA Distributed Ledger Technology (DLT) functions.

The IOTA DLT is a transaction settlement and data transfer layer for the Internet of Things (IoT). IOTA allows people and machines to transfer money and/or data without any transaction fees in a trustless, permissionless, and decentralized environment. This technology even makes micro-payments possible without the need of a trusted intermediary of any kind.

The expansion is built on STM32Cube software technology to ease portability across different STM32microcontrollers.

The current version of the software runs on the B-L4S5I-IOT01A discovery kit for IoT nodes and connects to the Internet through the attached Wi-Fi interface.

The software is also available on GitHub, where the users can signal bugs and propose new ideas through Issues and Pull requests tabs.

  • All features

    • Complete firmware to build IOTA DLT applications for STM32-based boards
    • Middleware libraries featuring:STSAFE secure element for a secure hardware root of trust (randomness, signatures, storage)Wi-Fi managementencryption, hashing, message authentication, and digital signing (Cryptolib)transport-level security (MbedTLS)IOTA Client API to interact with the Tangle
    • Complete driver to build applications accessing motion and environmental sensors
    • Examples to help understand how to develop an IOTA DLT Client application
    • Example to help understand how to build and send to the Tangle an encrypted authenticated stream based on L2Sec, a Layer 2 lightweight security protocol designed to meet the constrained requirements of embedded IoT devices
    • Easy portability across different MCU families, thanks to STM32Cube
    • Free, user-friendly license terms

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    • Part number



      STM32L4+ Discovery kit IoT node, low-power wireless, BLE, NFC, WiFi

      STM32 Discovery Kits ST


      STM32L4+ Discovery kit IoT node, low-power wireless, BLE, NFC, WiFi