Neurons are the tiny processing units within the human brain and nervous system.
Our brains have about 86 billion neurons. Even more are spread throughout the body, communicating by electrical and chemical signals through incredibly thin cables.
Whenever we see, hear, or otherwise perceive the world, thousands of sensory neurons send signals to our spinal cord and brain. And thanks to other neurons, we’re able to make sense of those perceptions and react accordingly.
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.