STMicroelectronics updates STM32Cube software package to support IOTA Chrysalis version

STMicroelectronics updates STM32Cube software package to support IOTA Chrysalis version

STMicroelectronics has announced that the development and verification of the new X-CUBE-IOTA1 expansion package has been completed and is now available for download to support the IOTA Foundation’s distributed ledger technology (DLT) and infrastructure upgrade to the Chrysalis version. The new expansion package, including the integrated IOTA C software library, has been added to the STM32Cube microcontroller software development ecosystem.

STM32Cube integrates low-level software and middleware into a software library, and also integrates a microcontroller configuration tool that generates initialization code, allowing embedded applications to run on any microcontroller in the popular STM32 series. STM32Cube software has more than 100 expansion packages, including the updated X-CUBE-IOTA1, and is an expanding development resource ecosystem that allows other use case-specific software to be added.

The new expansion includes IOTA-specific middleware and sample code, allowing developers to take advantage of the newly upgraded Chrysalis system of IOTA DLT and develop smart, connected transaction processing devices through the energy-efficient and highly integrated STM32 MCU.

IOTA DLT technology, also known as Tangle, is a distributed secure database that prevents data tampering. According to the IOTA Foundation, the new Chrysalis upgraded protocol is 60% more energy efficient than the original IOTA protocol. To achieve these benefits, the IOTA Foundation upgraded the protocol to atomic transactions, which can record state changes more efficiently than the "account transaction mode" that requires updating the entire account balance. Atomic transactions reduce the minimum transaction data size from the original 3,500 bytes to 275 bytes. The improved new transaction selection algorithm also makes transaction verification and synchronization faster. The IOTA Foundation said that the electricity used for one Bitcoin transaction allows the IOTO system to execute 600 million transactions.

The latest version of the X-CUBE-IOTA1 software supports the B-L4S5I-IOT01A development kit, an IoT node evaluation board that uses an STM32L4+ microcontroller and connects to the Internet via a Wi-Fi interface. The new upgrade package relies on the STM32 Cryptolib to provide highly optimized and powerful security algorithms, including:

Middleware library :

- IOTA Client API, for applications to interact with the Tangle database

- STM32 cryptographic library for encryption, hashing, message authentication and digital signature

- Transport Layer Security (MbedTLS)

- FreeRTOS

- Wi-Fi Management

● Full driver access to on-board motion and environmental sensors

The X-CUBE-IOTA1 expansion package is now available for download from ST.com.