The initial setup for the Doorbell was dead simple. A push-to-make button connected to a GPIO on the C.H.I.P which caused some code to randomly play out various MP3 files over the audio-out to some big speakers cunningly hidden near the door.
This year I thought “I’ll add a simple LCD message to guide people”. Then I thought I’d use my Adafruit OLED screen. Luckily most of the code I needed was out there and it was case of a few evenings of tying it all together.
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.