Hi, I am a newbie when it comes to electronics and circuits but would like help with an experiment I am working on.
With a round handle (aprox 15-20mm diameter) I want to be able to send a current to start a small DC motor based on how hard the handle is squeezed. I don't want the motor to run when the handle is squeezed say 5,6 or 7 on a scale of 1-10 (will take some trial and error to figure out exactly how hard that is) but if the handle is squeezed harder or lighter than that range I want it to run the motor. I am thinking I would also need a switch to turn it off so when nobody is holding it the motor isn't running. All of the components would need to fit inside the handle which will be 10-12 inches long (so all stacked on top of each other).
As I mentioned I have very little knowledge in this area but I have some battery holders with attached leads and a DC Motor. Once I get a switch and whatever else I need I really have no idea how to connect it all together. Also, based on some of the research I have done I came across piezo film sensors and thought that could possibly be wrapped around the handle but I was wondering if that is the best way to do it or if there was other options. It needs to be able to withstand a little bit of wear and tear. It won't be thrown around but could be dropped occasionally.
Any suggestions??
Thanks
With a round handle (aprox 15-20mm diameter) I want to be able to send a current to start a small DC motor based on how hard the handle is squeezed. I don't want the motor to run when the handle is squeezed say 5,6 or 7 on a scale of 1-10 (will take some trial and error to figure out exactly how hard that is) but if the handle is squeezed harder or lighter than that range I want it to run the motor. I am thinking I would also need a switch to turn it off so when nobody is holding it the motor isn't running. All of the components would need to fit inside the handle which will be 10-12 inches long (so all stacked on top of each other).
As I mentioned I have very little knowledge in this area but I have some battery holders with attached leads and a DC Motor. Once I get a switch and whatever else I need I really have no idea how to connect it all together. Also, based on some of the research I have done I came across piezo film sensors and thought that could possibly be wrapped around the handle but I was wondering if that is the best way to do it or if there was other options. It needs to be able to withstand a little bit of wear and tear. It won't be thrown around but could be dropped occasionally.
Any suggestions??
Thanks