 Whippersnapper is a new feature of Adafruit I.O. that lets you turn a Wi-Fi-capable microcontroller board into an Internet of Things device without writing any code. Program your board with the Whippersnapper firmware. For many boards, you can do so by simply dragging and dropping a file. Enter your network credentials and Adafruit I.O. username and key in the Secrets.json file. Don't worry, they'll stay private. Log into your Adafruit I.O. account and click Whippersnapper on the top bar. Reset your newly programmed board. It should automatically appear in the Adafruit I.O. window. Name and add the board to I.O., then connect one of the supported hardware input, output, or sensor components. Use the New Component button to add it to Whippersnapper and choose your settings. And that's it. You can now turn on an LED from across the Internet, or get a notification when that breakbeam sensor is tripped, or keep an online record of light levels in your fridge, or get a notification.