Free Wili 2: an open-source handheld multitool with dual RP2350 chips and FPGA

# What the Free Wili 2 is

# Core hardware

Physical interface: a 3.5-inch capacitive touchscreen, a D-pad, backlit buttons and a small keyboard are built into the front panel. The unit measures roughly 152.4 x 78.9 x 22.3 mm and weighs about 290 g.

# Radios, sensors and I/O

Radio and proximity features include NFC, 125 kHz RFID (with internal antennas), infrared and Meshtastic LoRa mesh communication. There is USB host support for common peripherals such as keyboards, mice and joysticks, and a GUI available for configuration and PC-side monitoring.

# Power management and battery

The Free Wili 2 uses a 3000 mAh battery. Power management is handled by an ultra-low-power microcontroller that controls 17 discrete power zones. That architecture enables dynamic power switching across subsystems and USB-aware charging behavior, which helps balance runtime and peripheral needs when you plug into USB power.

# Expansion and modularity

The platform supports Orca add-on modules to extend hardware capabilities. These modules are intended to provide additional sensors, radios or custom interfaces so you can tailor the device for specific test or prototyping tasks without redesigning the core unit.

# Software and development

The Free Wili 2 ships with firmware preloaded. Development options include Rust and C++, plus a Python-like scripting environment using rThon and WiliBlocks. Those scripting frameworks aim to speed up testing and automation tasks while compiled languages cover performance-sensitive code.

# Who should consider it

This device targets people who need a portable hardware lab: embedded developers, pentesters, radio experimenters and hardware hackers. It brings multiple processors, an FPGA and a range of radios into one handheld platform so you can perform on-site debugging, capture signals, prototype sensor systems and experiment with mesh networking.

# Where to find more

Coverage cited here links to a Talking Sasquatch video demo and a Geeky Gadgets write-up for visual walkthroughs and additional technical detail.

# Bottom line

Free Wili 2 packages flexible compute, reprogrammable logic, multiple radios and modular expansion into a handheld form factor. If your work mixes embedded development, RF testing and field prototyping, it presents a single-device alternative to carrying separate test instruments.