I have a 12v 2a ac to dc adapter, though I'm not sure if it's safe to use. I have seen a few youtube videos and I find it confusing.
i have some in a box in workshop and i am still alive.
may be i have different piece, idk.
Please describe "safe". "Safe" for which purpose?
You can e.g. power an Uno using a 12V DC adapter. The 5V regulator on the board will bring the voltage down to 5V which is safe for the Uno. You however can not draw too much current from the 5V pin; the voltage regulator converts the access voltage (multiplied by the current required by the connected 3V/5V devices) into heat and will shut off when it gets too hot.
Which one?
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i want to use the 12v adapter to power the Arduino on which 3 servo motors will be connected (with Arduino i mean). I am very much a noob when it comes to electronics, so i don't understand all of the tutorials. So, if i use the adapter to power up Arduino will it short circuit the board or the components connected to it.
I am working on project that requires 15 servos, and i plan to use a pca9685 board. Will supplying the barrel plug with 2a 12v dc current short circuit the board. Also I'm not sure if 12v will be enough to power everything.
I am very much a noob when it comes to electronics and Arduino, I jumped into the field for a event I participated.
Hello zusi
Take a view here to gain the knowledge:
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- What adapter. Picture, model nr, anything.
- Define safe. But I think it has been discussed already.
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Most hobby servos need a 5-6volt power supply, so why are you trying to use a 12volt supply.
Get a 5volt supply that can handle the stall current of the 15 servos.
2Amp surely isn't enough. It might be ok for one or two servos. Think 20-30Amp.
Leo..
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yes, still thanks for considering
found what i wanned to know, thanks yall for the help, i asked a senior and got the answer.
Do you mind sharing the answer that you got from the senior? Everybody can learn from it.
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he told me not to use the 12v 2a adapter for more than 30 min cuz it might overheat or worst case damage the board, he suggested me that the best opt is to just use the USB port and power it using my laptop or just use a 9v battery with barrel plug, which can be bought separately and connected with the battery so it can hook up with the board's plug.
Your plan is to power 15 servos with a 9V PP3 battery?
Naaaahhhhh, i plan on using 9v or my laptops usb port to power the Arduino and use a separate 5-6v battery or adapter to powers the pca board. Tho i am still learning about these things and hopefully i can figure it out.
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