Hello everyone,
Lets get started.... I Am currently doing A Level Electronics and am thinking about my coursework. I have decided it would be nice to create a wireless weather station.
Now I need to create the Sensors, I have decided to have an anemometer device (using a motor that when it spins it induces a voltage which is proportional to the speed), a simply humidity probe and a ultra sensative thermistor.
I need help with a vane, I had a thought about using a potentiometer which alters the voltage. However, for this idea I would need a pot which is as frictionless as possible, and can have unlimited turn because the ones college have has got a stopper to stop it rotating fully.
All signal are then put into an AM signal which is read by a receiver box which then useing a computer parallel port and a QBasic iterface....
If someone could help me either tell me about specific potentiometer that would be great... OR... another option which could work...
Cheers,
Owen
Lets get started.... I Am currently doing A Level Electronics and am thinking about my coursework. I have decided it would be nice to create a wireless weather station.
Now I need to create the Sensors, I have decided to have an anemometer device (using a motor that when it spins it induces a voltage which is proportional to the speed), a simply humidity probe and a ultra sensative thermistor.
I need help with a vane, I had a thought about using a potentiometer which alters the voltage. However, for this idea I would need a pot which is as frictionless as possible, and can have unlimited turn because the ones college have has got a stopper to stop it rotating fully.
All signal are then put into an AM signal which is read by a receiver box which then useing a computer parallel port and a QBasic iterface....
If someone could help me either tell me about specific potentiometer that would be great... OR... another option which could work...
Cheers,
Owen