The roots of the beloved modern record player or turntable go right back to the origins of recorded sound. It was a French inventor, Édouard-Léon Scott de Martinville, who first realized the process of recording sound back in 1857. His ‘phonautograph’ system was inspired by anatomical drawings of the human ear. It used a horn to collect sound, which was then passed through an elastic membrane attached to a stylus. This rudimentary device would record sound waves by etching them onto sheets of paper. However, it could only visualize sound waves and could not play them back.
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.