Floating Robots Use GPS-Enabled Smartphones to Transmit Data and Location
University of California, Berkeley researchers have created a floating capsule that holds an Android based GPS-enabled smartphone. They created a custom Android app that constantly transmits the location of the sensor back to a central hub for monitoring water flow. They also have a custom sensor base (pictured above) that monitors water quality, salinity, and other characteristics. They use about one hundred sensors at a time, throw them in the water, let them float downstream for awhile, then recover them and analyze the data. Some of the units contain propellers, and can navigate freely on their own.
Each bot currently costs a few thousand dollars a piece, but they are hoping to bring the costs down significantly.
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.