📬❄️📦Adafruit Holiday Shipping Deadlines 2019:
Attention all domestic customers! Please place UPS Ground and USPS First Class & Priority orders by 11am ET Monday December 9, 2019
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Attention all international customers! Please place all UPS WORLDWIDE EXPRESS; SAVER, and DHL EXPRESS WORLDWIDE orders by 11am ET Monday December 9, 2019
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Monospinner is a Single-Rotor Spinning-Flight Machine
I’ve always appreciated the term ‘multirotor’ because it applies across the board to drone designs, but that isn’t applicable when there’s only one rotor!
The monospinner cannot hover like a standard multicopter. However, an unconventional equilibrium is found by analyzing the vehicle’s dynamics. For a certain constant angular speed and propeller force, the monospinner is able to remain substantially in one position. Feedback control keeps the vehicle near this equilibrium.
The mechanical design is chosen based on two robustness metrics: the ability to maintain hover under perturbations and the probability of input saturation based on a stochastic model. The resulting vehicle is sufficiently robust to achieve hover after being launched like a Frisbee.
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 – we’ll post the link there.
Biohacking — Vitamin-C + Gelatin for Accelerated Recovery
Python for Microcontrollers — MP3 decoding, CircuitPython snakes its way to Fomu, NXP, and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit
