Hello everyone, i am beginner in the electronics field and currently for a project ,i am developing a small circuit which needs to deliver 10 Amp current to SMA (Shape Memory alloys) wire.
I simply need that when the circuit gets close, at the output points 10A should be delivered . which i would like to vary through micro-controller ( Arduino ATMEGA328p) and program
I have attached my circuit diagram in the following for better understanding, I would like to ask if someone could take a look at and help to find if there any error in circuit ? or what other possibilities could be there for this issue?
It would very helpful if someone can help to resolve, thanks in advance.
The most obvious problem is you have 5V connected to Vin. If you are feeding an Arduino with 5V then connect to the 5V pin.
Some of your description does not make much sense, for example:
I do not know what you mean by 'Arduino flickers'. I suspect English is not your native language, there are forum sections in several other languages, would you be better off using one of those in your native language?
Apart from powering the Arduino from 5V to the 5V pin the circuit looks reasonable to me, however I hope at least 1 other person will check it and maybe spot something I missed.
Please post your code in code tags </>, maybe the problem is there.
Please post some clear photos of your project, it might be obvious from them what the problem is.
Right, you build a feedback loop with heavy delay by the 100µF cap at the Arduino input. This results in a free running PWM style signal. Why do you expect a "stable" output from a pure digital signal?
I'm wondering what you do and what you want to achieve.
What's the purpose of the Arduino?
How are the LEDs related to your code?
What makes "weird noise"?
"Not getting output" is meaningless - what's the value?
I'd suggest that you get local help by somebody with better electronic knowledge.
