OmniRing: An Open Source Smart Ring #WearableWednesday
Like Frodo, you probably don’t want anything to do with a magic ring infused with a profound evil that will slowly works its dark will into your body and soul, driving you to ever worsening acts of selfishness and cruelty. Unlike Frodo, you may be able to have an open source version of a magic ring that you can make as good or evil as you’d like! Many companies offer smart rings. Here’s an open source version that may not need to be carried all the way to Mount Doom. Here’s more from hackster:
A new option has recently been developed by a team of engineers at The Pennsylvania State University that is both open source and compact. Called OmniRing, this smart ring platform has a miniature form factor, long battery life, sensing and processing units, and is water resistant, making it practical for daily use. It was designed with finger motion analytics and healthcare applications in mind, but the open design allows each user to customize it as much as they wish. And with the total cost coming in at less than $25 wholesale, or about $62 for a single unit, OmniRing is accessible to just about everyone.
The ring is composed of a flexible printed circuit board with an inertial measurement unit (IMU) and photoplethysmography (PPG) sensors. The Nordic Semiconductor nRF52832 system on a chip, with an Arm Cortex-M4 processor running at 64 MHz was selected to handle onboard processing. Since this chip also supports wireless protocols like Bluetooth Low Energy, it can transmit sensor readings to external devices for more complex analyses. The components are housed in a waterproof 3D printed case that was designed using a combination of resin and thermoplastic polyurethane. A 3.7 volt ring-shaped rechargeable LiPo battery, which can operate for up to a week between charges, completes the design of the 2.5 gram OmniRing.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
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.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: The latest on Raspberry Pi RP2350-E9, Bluetooth 6, 4,000 Stars and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
