SMALL DEVICES. BIG POSSIBILITIES.

Sui, closer to
the hardware.

Bring blockchain interactions to the edge. An open-source C framework for microcontrollers, built around the Sui ecosystem.

Explore the framework View on GitHub

Open source Written in C Embedded first

HARDWARE MEETS SUI

A microcontroller board with a Sui chip on a wooden workbench

From the physical world.To the chain.

Signing starts here.Right on the device.

DESIGNED FOR THE EDGE

ESP32STM32ARMAVR8-bit → 32-bit Sui ecosystem

microsui / signing.c

C code demonstrating digest generation and Ed25519 signing for Sui

A small footprint. A new connection.

01 / THE FRAMEWORK

Small footprint.
Real-world potential.

MicroSui brings the Sui ecosystem closer to the devices that sense, measure, and act in the physical world.

A lightweight, modular C framework designed for embedded systems. Explore key management, transaction construction, and signing without the overhead of a full application stack.

Key managementTransaction constructionOn-device signingEmbedded integration

Get to know MicroSui

02 / INTEGRATION SCOPE

Different devices.
Two paths to Sui.

From connected MCUs to constrained chips, explore an integration path that fits your hardware.

PATH 01WI-FI ENABLED

Connect directly.

For more capable devices such as the ESP32, the integration scope covers building, signing, and broadcasting transactions directly to Sui RPC endpoints.

Sensors

ESP32

Sui

PATH 02CONSTRAINED DEVICES

Bridge the connection.

Low-power ARM, AVR, BLE, or LoRa devices can sign locally and hand messages to a gateway. The gateway takes care of publishing to the network.

MCU

Gateway

Sui

The common thread: signing stays close to the hardware.

Explore the architecture

03 / POSSIBILITIES AT THE EDGE

Physical devices.
New possibilities.

Ideas for connecting the things around us to blockchain. A starting point for what you could build.

Industrial robots on a factory production line

INDUSTRY

Industrial event logging

Connect machine events to a verifiable record on Sui.

LOGISTICS

Supply chain checkpoints

Record physical checkpoints along the supply chain.

ENERGY

Energy usage auditing

Explore transparent records of energy production and usage.

ENVIRONMENT

Environmental certification

Bring sensor readings into a traceable data workflow.

Vending machines offering drinks and snacks

COMMERCE

Proof of payment

Connect a physical device to a blockchain payment event.

Illustration of connected toll booths and cars

MOBILITY

Smart toll collection

Explore device-triggered transactions for connected roads.

DATA

Data logging to Walrus

Explore decentralized storage for events and device data.

Concept of a small hardware wallet displaying a Sui balance

SECURITY

Embedded hardware wallets

Keep signing close to the device and its embedded keys.

And the next use case? That could be yours.

Let’s build a connection

04 / EXPLORE THE PROJECT

Open source.
Open possibilities.

Take a look under the hood, watch a demo, or follow the project as it grows.

THE PERSON BEHIND THE PROJECT

05 / BUILT BY A BUILDER

Bridging two worlds.
Building in the open.

MicroSui is led by Gustavo Belbruno, exploring the intersection of embedded systems and the Sui ecosystem.

Have a question, a contribution, or an idea for an integration? There’s a person on the other side.

Gustavo BelbrunoProject owner & founder

LET’S CONNECT

Have a device.
Have an idea?
Let’s talk.

Building an integration, exploring a use case, or curious about the framework? Get in touch.

info@microsui.com

Sui, closer to
the hardware.

Small footprint.
Real-world potential.