Arduino Project Ideas - Part 10
cardBot - Cardboard Ant Bot
Cardboard bodied Ant Bot based on the
3D printed Plastic Ant Bot project.
Cheap, strong, fun way to build a robot!
Raspberry Pi Laptop
micro:Bit Wind Meter
.Build your own Wind Speed Meter.
Old fidget spinner
a reed switch and small magnet
some small wood sticks and cardboard to make
A bit of micro:Bit code
The PDF below, is a full DIY tutorial on how to build the wind speed indicator with a micro:bit
If you do not have a Sparkfun Weatherbit, you can just hook up the micro:bit with two aligator clips attached to the reed switch and then one to Pin 0 on the micro:bit and the other on the +3V pin. Then define a serial pin connection in your sketch to read the voltage spike as a 'click'.
Use the radius of the weather vanes (tongue depressors in this case) in some circle calculations to determine the speed. Basically, 2*Pi*radius / time gives you the speed. You just then convert the speed in m/s to kilometres / hour if you wish.