Obstacle avoidance

NOA stands for Navigation, Obstacles and AI. It’s the first product of biped. NOA works like a small self-driving car on your shoulders. It uses advanced AI to identify potential obstacles, give GPS instructions and describe your surroundings.

Obstacle avoidance technologies typically generate overwhelming feedback for end-users, even in simple scenarios. Here is how NOA is changing that.

To learn more about all the features, read our user manual by clicking below.


Object finding

NOA can now look for objects, such as doors, seats, crosswalks, stairs or even elevetors. In this short video, learn more about this feature, and how it is easily triggered from buttons on the side of the device.

AI scene description

NOA can additionally describe your surroundings using AI, with a double-click on the home button.

Holes detection

NOA built its obstacle detection technology on top of a safe walkable area detection, just like self-driving cars that first try to assess the drivable area. This allows us to bring one major feature that ultrasound technologies cannot solve: holes and drop-off detection.

Other smart features

NOA is full of small features that make your life easier. Click on a button to pause the device. Detect your hands automatically to avoid triggering an obstacle sound. Identify if something is occluding the cameras. And a lot more!

World-first partnership x Honda Research Institute

biped's team partnered with world-class self-driving experts from Honda Research Institute (HRI) to build NOA.
Just like self-driving cars, NOA can identify obstacles, track them and predict if there will be a risk of collision, a couple of seconds ahead.
This limits drastically the amount of feedback generated by NOA, compared with other solutions on the market.

Link to the announcement

Honda Research Insitute office in Germany.

High precision engineering Swiss Made

A picture of a NOA device being assembled, with a precision screw driver closing a casing

biped is an EPFL startup, one of Switzerland’s leading engineering institutes. Our devices are assembled and tested by hand, at the heart of Europe.

swiss made logo

Intuitive audio feedback

NOA's feedback is science-backed. We worked with leading scientists in low vision and neuroscientists, to define the optimal feedback through bone-conduction headphones. Obstacle sounds are based on 3D beeps, and reacts in less than 100ms. Obstacle elevation is reflected with the pitch of the sound. NOA becomes your companion, as if someone was by your side, helping you move freely. NOA will not create a feeling of dependency, but instead focuses on improving your mobility skills even when you don't use it.

A pair of Shokz Open Run Pro

From 1 to 100+

For most startups, going from 1 prototype to hundreds of units is a massive challenge. The developement of a hardware product can take years. We have of course been through that valley, experienced long delays, iterated on the product dozens of times, before reaching a stable version: NOA. This device is now stable, scalable, and produced in growing volumes.

A line of multiple NOA devices produced and assembled on a table.

2021: First prototype

We started biped out of a Hackathon, a 1 week challenge to create an impactful solution. biped started as a belt that can describe surrounding objects. When we introduced the first prototype to end-users & O&Ms, we quickly realized that the field of view needed to be higher to allow space for white canes and guide dogs in front.

We tested our software extensively with that version and added night vision for users struggling with low light. We focused on developing a new version that would sit on the chest and be easier to mount.

2022: First vest

Early 2022, we developed our first vest. We added night vision to our system and reduced a lot sensory overload by only focusing on obstacles that have a real risk of collision. At that time, NOA was still only an obstacle detector.

We organized many user testing sessions in standardized environments for the vest and came to these conclusions: the vest needed to be clipped on the chest, but it was still challenging for users to put on their device alone. The field of view was also too limited on the ground-level and on the side for lateral obstacles. Back in the lab!

Late 2022: First O&M tools

O&M trainers during test sessions highlighted that it was challenging to train users without knowing what the device percieves from the environment.

So we focused on building a smartphone app capable of streaming what the device perceives from the surroundings, in real-time. This tool was put in the hands of O&M trainers from day 1 to get feedback on the information to present.

2023: Doing more

As our obstacle avoidance technology started to reach maturity, we realized that our technology needed to do more than avoiding obstacles. We followed O&M trainers during white cane session, we joined guide dog training sessions and converged to the following idea:

We need NOA to give accurate GPS instructions that respect O&M rules, and most importantly, to be able to guide the user to a specific element such as crosswalks, stairs, doors & exits, just like guide dogs would do. NOA now had the ambition to become a real all-in-one mobility solution.

2024: Buttons

In 2023, NOA was tested with over 200 end-users, and used on a daily basis by dozens of beta-testers. As NOA grew in complexity, the smartphone app was needed more and more to change settings, control the device, etc.

We saw many requests to make the device work without a smartphone app. For our first commercial product, we focused on adding these buttons, designed the layout with end-users, mapped the features with O&M trainers, and quickly got awesome feedback.

To learn more about the buttons, read our user manual.

Over 600 km walked with NOA in 10 countries! Built with over 250 beta-testers from day one.


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Made for a daily use

NOA’s battery has a magnetic connector (similar to MagSafe) and can run for up to 3 hours of continuous use. Usually more than enough for a full-day of use. Oh, and we deliver 2 batteries that can easily be swapped and recharged.

NOA is delivered with a custom-made high quality transport bag. Slide in your device, your headphones, and your 2 batteries. Wear it as a backpack, or inside of a bag, as you prefer.

2 batteries with magnetic connectors that can be inserted in a NOA device A travel bag holding with a NOA device inside, a charger and batteries.

Our team

We’re a small but extremely efficient team of robotics engineers, full stack engineers and AI experts based in Switzerland. Our startup, biped robotics, was created early 2021. At the time, Mael, CEO, met a white cane user doing a FaceTime to a friend. His friend was telling him when to turn left or right, where obstacles were, and how to find the door to the building: navigation, obstacle avoidance and image description. Just like NOA! Our team has worked since the start with leading institutions such as the ophthalmic hospital in Lausanne.

biped's team in a company retreat in France. For the annecdote, this is when we designed the very first AI scene descriptions, in a remote house, in 24 hours.
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today!