Use a Circuit Playground (Developer Edition) and some basic crafty components to build a homemade inclinometer to measure the height of things, from trees to Space Needles!
This is a fun and simple beginner project that turns the Circuit Playground into an inclinometer. An inclinometer is a device that can determine the angle of something relative to the horizontal. With this information and some right angle math, the height of tall objects can be determined. Don’t worry, all the math is provided and use of a calculator is allowed.
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Circuit Playground – Developer Edition: Circuit Playground features an ATmega32u4 processor, just like our popular Flora. The board’s also round and has alligator-clip pads around it so you don’t have to solder or sew to make it work. You can power it from USB, a AAA battery pack, or with a Lipoly battery (for advanced users). Just program your code into the board then take it on the go! Read more.