As we all know, the YO-YO is swing when a player playing the YOYO. However, in market, the company like **broken link removed** using the swing/ dynamo theory to make a/ some LED light. So, now i have a project to make a sample of this type pf YOYO, can some one please help? I wish to know the circuit and the theory behind this. Thank you.
I have seen Yo-Yo with LEDs which is pretty simple to make. It has a switch made out of long and heavy metal strip which makes contact due to centrifugal force when Yo-Yo is spinning. Rest everything is easy....just connect CR2032 coin battery with LED in series with this switch.
Small coil with a movable core in a barrell. The movement of the Yo-Yo up and down will move the core and you will have the power you want to light a LED at the output of the coil. Place a small resistor protection and calculate the inductor to be able to light the LED.