I have been dealing with this issue for a while. I had sixteen servos that I ordered and almost all of them have fried in various ways. I need to know where I am going wrong with this one in particular.
The voltage that is being used for this is 12V, but it shown disconnected in the picture. As soon as I turned on power, the servo immediately became unresponsive. Any clue as to what I've hooked up wrong? Thanks in advance!
What voltage are the servos being powered at ?
How would I discover that? (Sorry I'm very new to circuitry)
Messure the voltage with a multimeter? Check it against the specifications of the servos.
It is impossible to tell from your 'photos where the servos are getting their power.
Ideally you would draw a circuit diagram, pencil and paper is good enough, and upload a photo of it.
The servo has 3 wires. Where do each of them connect to ?
How is the Uno powered ?
What is that strange coil of gold coloured wire ?
If you are connecting 12V to that barrel/screw terminal adaptor, then that is why you are burning out your servos.
Thanks! What should I should use as a power source instead?
A 5V 1A supply will do for 1 servo, or even 6 AA batteries.
I will make a circuit diagram!! The golden wire isn't being used for anything, I should've cleaned up my space before taking photos. My arduino is being powered by the standard cord and it's being directly connected to my PC.
NOT a 9V battery you will still burn them out.
Four AAs
okay, thank you! I don't have an adapter for those, what could I use without one?
Oh, by the way I plan on connecting eight servos in the future for the project. How many double A's should I use for that?
They can't deliver the current for that many servos.
D-cells, the bigger brother of AA, could work for small servos like the SG-90.
Firstly, know your servos. Never apply a higher voltage than they are rated for, that's a sure way to burn them out. From the looks of it, your "standard servo circuit" was anything but standard.
Secondly, tell us more about your application. How your will move the servos, how many will move at once, whether or not they will have 'static' load(i.e. if they will be expected to hold position with a weight dangling from them, for example), will tell us a lot more about the use case, and thereby guide the advice you will receive.
Tell me more about that, what is the standard servo circuit? I'd like to know to apply that for future knowledge, and I can't seem to find a consistent one I should use for multiple.
I am currently building an animatronic that requires around eight servos to move and will be moving hollow pieces of plastic.
Alright thank you! I think I might wanna research a bit more about how to properly build the circuit now, and I'll keep what you said in mind.
For multiple servos: an Adafruit 16-channel PCA9685 servo board.
It is "set and forget" for the Arduino, so much easier on other code that you might run on the Arduino. And you can plug the servos straight onto the headers of the board.
Beware of clones with a smaller/under-rated mosfet in the servo power line.
Thank you!! Is there another good place buy this product as the link you sent seemed to be out of stock?
