The following is a somewhat paraphrased conversation between Henry (age 12) and Dad (age, uh, somewhere north of 40) on the way home from Thanksgiving…
Henry: Hey Dad, can you make a loudspeaker that aims only in one direction?
Dad: Well, sort of. Because of the way sound works, you need a very wide loudspeaker to make it directional and ‘point’ in some direction. For a reasonable size loudspeaker, you can make it very directional only at high frequencies.
Henry: Awesome. Can I make something that attaches to my iPod Touch and aims the sound from the ‘Dog Whistle’ app?
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.