I'm a bit of a beginner but essentially wanting to build a circuit that operates as follows, but have no idea how to do it!
Basically I have a wind up torch and am wanting to connect to a chain of LEDs. I would like it to operate so that the faster you wind the torch, the more LEDs in the chain will light up, i.e. the LEDs will essentially be acting like a crude measure of how much energy your producing. So turn it slowly the first might light, turn a bit faster the first and second LED light etc.
Any help would be really appreciated!
Thanks
Basically I have a wind up torch and am wanting to connect to a chain of LEDs. I would like it to operate so that the faster you wind the torch, the more LEDs in the chain will light up, i.e. the LEDs will essentially be acting like a crude measure of how much energy your producing. So turn it slowly the first might light, turn a bit faster the first and second LED light etc.
Any help would be really appreciated!
Thanks