Introduction to RoboWallet Core

Enabling the Solana Machine Economy on Microcontrollers

RoboWallet is a lightweight, zero-allocation, no_std embedded SDK and smart contract framework that lets IoT devices and microcontrollers act as autonomous economic agents on the Solana blockchain.

Core Architectural Principles

  • Zero Heap Allocation: every transaction is built and signed in stack buffers — no fragmentation, no runtime allocator surprises.
  • On-Chain Spending Limits: the session-vault program enforces budgets at the protocol level, so a stolen device cannot overspend.
  • Verified Wire Format: the embedded builder's output is validated byte-for-byte against @solana/web3.js in CI scripts.

Devnet program: ArgvLnQ5UhqJ9Ks7JF7nycbUJNzAgwR136LqzBNCCux9