Hi Guys,
I am new to these forums and really inexperienced in circuit design. I have had some electric and electonics training but that was years ago and limited.
Here is my project. I would like to add 3 LED's to a model tank, and have the radar array rotate, powered by a 9v battery.
The three LED's voltage are
4.5 v white
4.5 v white
2.2 v blue
The motor is a mini DC motor taken out of a remote control servo. I have retained the gear box to slow the output speed down.
I plan on wiring the led's parallel, and using 3 separate resistors to ensure that each one lights up. (this I can figure out)
The problem is, is that 9v is way too much for this little motor, it is way too fast and gets hot quickly. When I power the motor with a AA 1.5, the speed is perfect and it does not get hot. I really have two questions.
1) Is there an electronic device that will slow the motor down even feeding it 9v parallel? or even slower that I can remove the gear box (it's bulky for my project)
I have read about resistors and that they may overheat and will drain the battery and also very little on potentiameters which I don't know if I have room?
If there is a device, can you point me to a website where I can purchase?
Or can I wire the LED circuit in series with the motor? How will that affect the overall draw on the battery and motor speed.
Thank you everyone in advance for looking at this question. I would appreciate if you can "dumb" down your answers
Cat/