Airfrog is a coin-sized wireless co-processor that gives you god-mode access to ARM MCUs over WiFi. Built around a $3 ESP32-C3 module, it adds processing power to the MCU, reprograms flash memory while the target continues running, extracts telemetry from systems with no spare processing cycles, and provides remote debugging capabilities without physical access to the target device.

The project demonstrates live firmware updates on running systems, wireless data extraction from embedded devices, and integration with existing toolchains like probe-rs.

Airfrog is written in Rust with libraries for writing custom firmware. REST and binary APIs enable network programming and control.

Firmware, hardware designs, manufacturing files, and documentation are fully open source (MIT/CC-BY-SA-4.0).

🔗 Links

Airfrog: https://piers.rocks/u/airfrog
Software Defined Retro ROM: https://piers.rocks/u/sdrr

⏰ Timestamps
00:00 🎬 Introduction
00:28 🔧 Demo Setup
00:50 🚀 Booting Airfrog
01:19 💾 Updating RAM on running MCU
02:22 ⚡ Updating flash on running MCU
06:24 📡 Wireless co-processing
08:31 ⭐ Other Airfrog features
10:11 🎯 Accessing Pico/RP2040
11:18 🛠️ Airfrog with probe-rs
12:43 🎬 Wrap-up

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