The project uses a Raspberry Pi 3 running the latest version of Raspbian with internet enabled WiFi. You can use earlier versions of the Pi, however, the port pin numbers may not correspond to the ones mentioned here. The Pi needs to have a few interfacing connections enabled. This used to be a long and tedious business but it has now been greatly simplified. The easiest way to connect the Pi’s HDMI cable to a monitor, attach an internet connected Ethernet cable, a usb keyboard and mouse and boot to Raspbian. From the raspberry icon on the top left of the screen, select preferences/raspberry Pi configuration/interfaces and enable SSH, 1-Wire and Remote GPIO, then close the pop up window. To enable WiFi, click on the up/ down arrows icon on the top right of the screen and follow the prompts . Remove the Ethernet connection, then, click on the command window icon and enter the command ‘hostname –I’. Make a note of the IP address that’s displayed, you’ll need it to connect to the Pi. Then reboot the Pi. (enter ‘reboot’).
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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.