Tentduino is an add-on I made for my tent to indicate oncoming weather patterns. Basically, it’s an Arduino Uno attached to a barometer that sends information to an LED strip. The LEDs glow variations of red or blue depending on the amount of change in barometric pressure since the Arduino was turned on—red for a negative pressure change and blue for a positive change. The color’s brightness indicates the amount of change, i.e. a bright red means a large negative drop.
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.