How to run a common Motor as Generator

Power an Arduino board using a Motor as Generator

1. Intent is to run an electronic device using Wind Energy.
2. Use a common device as electricity generator.
3. A motor can also function as a Generator. Brushed motor?
4. Turning the motor spindle will generate some voltage at the  motor leads.
5. So using a wind blower one can generate enough voltage to turn on an Arduino.
6. The Generator inputs are given to the Vin pin and GND of a UNO board.
7. Did not actually measure the voltages but the voltage regulator took care of powering the UNO, turning it on. If the voltages exceeded the rated limits maybe it would fry the board too.
8. The UNO can be seen running the LED blinky program