Voting resources, early voting, and poll worker information - VOTE. ... Adafruit is open and shipping.
0

The DolphinView head mounted LiDAR lets you ‘see’ like a sea creature

Wearing DolphinView
Wearing DolphinView, Photo by A. Freitag

Via The Verge, Southern Fried Science and Twitter – 

I’m Andrew Thaler and I build weird things.

Last month, while traveling to Kuching for Make for the Planet Borneo, I had an idea for the next strange ocean education project: what if we could use bone-conducting headphones to “see” the world like a dolphin might through echolocation? Spoilers: You can.

Bone-conducting headphones use speakers or tiny motors to send vibrations directly into the bone of you skull. This works surprisingly well for listening to music or amplifying voices without obstructing the ear. The first time you try it, it’s an odd experience. Though you hear the sound just fine, it doesn’t feel like it’s coming through your ears. Bone conduction has been used for a while now in hearing aids as well as military- and industrial-grade communications systems, but the tech has recently cropped up in sports headphones for people who want to listen to music and podcasts on a run without tuning out the rest of the world. Rather than anchoring to the skull, the sports headphones sit just in front of the ear, where your lower jaw meets your skull.

This is not entirely unlike how dolphins (and at least 65 species of toothed whales) detect sound.

dolphin

Here’s the weird thing, though. Dolphins don’t have ears.

At least not externally. Dolphins are highly streamlined for fast travel through seawater and exposed, external ears would not only create drag but would produce cavitation and turbulence that could actually interfere with sound detection. Dolphins are, among other things, extreme audiophiles. So how do they hear? Nestled in their lower jaws is that same acoustic fat found in their big heads. Their lower jaws interface with the structures in their inner ear, allowing sound waves to travel up their jaw and into their ears. Dolphins “hear” with their jaws.

Thanks to the consumer drone movement, cheap time-of-flight LiDAR units (not true LiDAR systems that use laser reflection, but focused infrared emitters that do almost the same thing, but cheaper) are increasingly more available. These modules are compact, have a low power draw, interface easily with Arduino, and have a 12m operating range. Perfect! It’s not ultrasound, but it is a pretty good proxy for what I’m trying to build.

DolfinView

You can read the full story on Southern Fried Science and The Verge.

And if you want to try out bone conduction for yourself, Adafruit sells a bone conduction device for your own audio projects.

 



Adafruit has had paid day off for voting for our team for years, if you need help getting that going for your organization, let us know – we can share how and why we did this as well as the good results. Here are some resources for voting by mail, voting in person, and some NY resources for our NY based teams as well. If there are additional resources to add, please let us know – adafruit.com/vote

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 24,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — To make it through a tough business cycle, layoffs should be a last resort

Wearables — Start with too much

Electronics — Desolder with… more solder!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Over 200 CircuitPython compatible boards! #Python #Adafruit #CircuitPython #CircuitPythonDay @micropython @ThePSF

Adafruit IoT Monthly — Mitigating Climate Change with IoT, LoRaWAN Gardens, and more!

Microsoft MakeCode — MakeCode and Wonder Woman 1984 Team Up

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — JP’s Product Pick of the Week 9/15/20 VL53L0X Distance Sensor @adafruit @johnedgarpark #adafruit #newproductpick

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.