Could these small robots help monitor coral reefs?
Check out these awesome robotic manta rays created to monitor our oceans coral reefs. Shared from engadget.
Chinese researchers have crafted a soft manta ray-inspired bot that could surveil the seas without harming nature in the process. Rather than rely on stiff metal or plastic for its body, the artificial swimmer is made out of a combination of flexible polymer (for its muscles) and silicone (for most everything else) that shouldn’t damage sea life. And importantly, there’s no motor — the ray gets around using a lithium battery whose cyclic voltage causes the muscles to bend, flapping fins in the process. Electromagnets help steer the tail.
At a speed of less than 2.4 inches per second, this faux manta isn’t about to compete with real fish for performance (others its size tend to travel four times faster). That’s still twice as fast as the previous best for a soft untethered robot, however, and it can survive in temperatures as cold as 33F and as hot as 165F. If there’s a real drawback to the current design, it’s the 3-hour battery life — this won’t stay underwater for too long.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
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.