Reliable and affordable RF testing for all!

Why RF Testing Needed a Reboot

As anyone working on a connected product knows—whether it’s BLE, LoRa, Wi-Fi, or 5G—RF performance is at the heart of everything. Range, reliability, and user experience all depend on how well a device handles radio communication, and that’s why RF testing is so critical.

Meanwhile, RF testing has long had a reputation for being tricky, expensive, and time-consuming—usually locked behind specialized labs and years of expertise with equipment that costs much more than the product it’s meant to test.

After nearly 20 years immersed in the RF engineering world through ONDYA engineering services, we wanted to change that. We wanted a solution that lets anyone dive into RF without the headaches, barriers, or massive budgets. That vision became ONDUINO.

The Story Behind the Name ONDUINO

The name has roots in both worlds:

• "ONDE" means "wave" in French, the invisible medium carrying your data across the air.
• "UINO" is our friendly nod to Arduino and the open hardware movement.

Put them together and you get ONDUINO: the open-source spirit meeting the world of RF testing in a reliable, approachable, hands-on way.

A Complete Ecosystem (Hardware, Firmware & Software)

ONDUINO is a family of Arduino-compatible shields and modular equipment designed to explore RF without fear, hassle, or breaking the bank. Whether you’re experimenting, validating a prototype, or fine-tuning designs in an advanced lab, ONDUINO is built to follow you wherever RF takes you.

What makes ONDUINO a true turnkey solution isn’t just the hardware; it’s the seamless software integration:

• The Hardware Shield: Tested and calibrated to deliver professional-grade accuracy across a wide frequency range up to 4.5 GHz, combining a 95 dB digital step attenuator (with precise 0.25 dB steps) and a modulation-independent RMS power meter.
• The Arduino-Friendly Firmware: Fully open-source and adaptable, allowing advanced users to customize functions or build custom applications.
• The Dedicated Control Software: Every ONDUINO device is easily controlled via USB (virtual COM port) using a free, dedicated desktop application designed for fluid, intuitive navigation. No complex setups or steep learning curves—just plug in and measure.

Lab-Calibrated Performance

For any engineer, outfitting a workspace with affordable or open-source hardware naturally raises a critical question: « Can I truly trust the measurements? »

In the RF world, a flawed attenuation value or a miscalibrated power meter compromises an entire design, from receiver sensitivity to final product compliance. This is precisely where ONDUINO stands apart: openness and modularity never come at the expense of measurement trust.

• Rigorous Individual Calibration: Every ONDUINO shield is tested and calibrated right out of the production line using state-of-the-art RF lab equipment. You receive a ready-to-use instrument with documented precision.
• Mastering Insertion Loss: Component behavior is meticulously characterized across the entire operating frequency bandwidth. The control software natively integrates these parameters to deliver reliable measurements without requiring manual calculations for line or connector losses.
• Open-Source Transparency & Traceability: Unlike proprietary "black boxes," the open architecture allows you to inspect and understand parameters via the firmware and APIs provided. You maintain complete control over your measurement tool.

Built for Every Maker and Engineer

Whether you need Automated Test Equipment (ATE), production test lines, R&D tools for IoT, or educational setups for the classroom, ONDUINO adapts to your workflow.

• Open-Source Transparency: Schematics, firmware, datasheets, guides, and mechanical files (STEP/PDF) will be made available on our website. You know exactly what is under the hood—no black boxes.
• Affordable Precision: Professional RF performance made accessible to startups, independent engineers, and enthusiasts alike.

RF might feel like magic when it works, but with the right tools, making it work doesn't have to be out of reach. Welcome to the ONDUINO ecosystem.

Discover Our First Release

We are kicking off the project with the very first equipment of a long series to come: the ONDUINO RF Range (featuring a 95 dB digital step attenuator and an integrated power meter).

This project is currently in pre-launch on Crowd Supply Head over to the campaign or product page to explore the full specifications of this first board, sign up on Crowd Supply for updates, and be the first to know when we launch!