Cs-40 Launches at AERO 2025
Cs-40 Launches at AERO 2025
Friedrichshafen, April 2025 — At this year’s AERO Friedrichshafen, Neomium officially unveiled the CÆSIUM® Cs-40, its 40-kilowatt, high-voltage motor controller for light electric vehicles — marking a milestone for open-source propulsion systems in aviation and beyond.
Over four packed exhibition days, the Cs-40 caught the attention of dozens of ultralight and glider manufacturers, engineers, and system integrators looking for a modern, thermal-stable, and open platform to power their next generation of electric aircraft.
Introducing CÆSIUM® Cs-40
With a peak output of 40 kilowatts (54 HP) and operation at up to 200 volts (rated for 46S Li-Ion), the Cs-40 delivers performance and voltage levels ideal for electric aviation — all while avoiding the pitfalls of conventional motor controllers, such as closed-source limitations or thermal constraints.
It runs the powerful, community-driven VESC® software, enabling full parametrization, data visualization, and compatibility with a wide range of motors — even low-inductance, drone-class outrunners.
BreezeDude Mini
Also drawing attention: the compact and stylish BreezeDude Mini, a precision wind and weather station for developers and aero-builders. Running fully open-source firmware and supporting flexible interface protocols, it was shown live on the AtlasAero back wall.
Terra420 Takes Off
The exhibition was also the pre-order debut of AtlasAero’s Terra420 — an electric paraglider propulsion system optimized for silent, zero-emission flight. Featuring Neomium’s components, the system received strong interest from both hobby pilots and commercial ultralight builders.
Thanks for Visiting AERO 2025!
We’re thrilled about the feedback, connections, and conversations sparked at AERO 2025. A big thanks to the organizers, our partner AtlasAero, and everyone who visited our booth.
The Cs-40 is now available for order via our online shop — and we’re just getting started.
If you’re building or retrofitting electric aircraft, karts, boats, or motorcycles — get in touch or explore our product lineup today.
More resources
Neomium GmbH is a technology-driven startup founded in October 2022, dedicated to accelerating electrification across mobility and aviation. We develop and deliver high-performance electronic components — like motor controllers and power systems — designed for the demands of next-generation electric vehicles. Alongside our product line, we’re also advancing an innovative cargo drone concept aimed at reshaping aerial logistics.
Comments are closed.