Introducing MicroSui
MicroSui – Sui Embedded Framework — is a lightweight, modular, open-source C framework that brings full Sui Protocol functionality to virtually any microcontroller. It provides all core operations—key management, transaction construction, signing and broadcast—in a pure-C library with no OS dependency or dynamic memory usage, making it easy to integrate on microcontroller devices from 8-bit to 32-bit ARM chips.
Some On-Chip Use Cases on Sui:
- Offline Signature (Blind & Semi-Blind)
- Sensor Event-Triggered Transaction
- Hardware Wallet
- Smart Toll Collection
- End-to-End Transaction Flow
- Timed Signing
- Industry Event Logging to Blockchain
- Multisig Participation
Integration Scope
For high-powered, WiFi-enabled MCUs like the ESP32, the framework will be able to enable a complete end-to-end transaction flow: connecting to Sui RPC endpoints over HTTPS or WebSockets, building and signing transactions natively on the device, broadcasting them directly to the network, and querying on-chain data.
Constrained devices with limited connectivity (e.g., LoRa, BLE, low-power ARM or AVR chips) can participate via lightweight bridge protocols—such as MQTT or CoAP (and there are even more basic communication options such as raw data via NFC or 433MHz Transmitters) — receiving pre-built messages and signing them with with their embedded PK, then sending them back to the gateway to publish the tx.
Meet the Project Owner / Founder
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