i am a totally newby and i want to start with Arduino. I am not sure what kind of hardware i will need for my project so pls help me
What i want to do is i want to connect 20+ components into my arduino. Each of those components should be able to push a key on a pc keyboard.
So what kind of arduino do i need to support so many components? And what kind of component do i need to realize the pushing movement?(maybe a motor?) The component dont need to have much pushing power since a keyboard key is easy to tab.
You will probably want a Arduino Mega or Bobuino for the output counts mentioned.
You will need drivers for the solenoids, 20 X MOS FET IRL540 and a power supply to power them.
Diodes across their coils 1N4007.
Pushing keys on a keyboard can also be done 'virtually' by some Arduino boards; that is, they can emulate a real keyboard and programmatically send key-press values via the USB port back to your PC.
Your PC then thinks that a key has been pressed on its keyboard. Just in case you were not aware of this.
The link below (in my signature) has videos for beginners like you to Arduino (new videos weekly) so have a look (and, ideally, subscribe so you get notified of new videos like the one I just did on a Rotary Encoder). And I'm no longer going to apologise for this shameless plug!
I would like to start with 10 pusher, do i still need Arduino Mega? Or is a normal one enough?
And why do i need MOS FETs and diodes?
Edit: ok i gues i need diodes so save the MOS FET when the power is shut down, but why do i need a MOS FET at the first place, since i dont want to controll the voltage level of the pusher.
I would like to start with 10 pusher, do i still need Arduino Mega? Or is a normal one enough?
And why do i need MOS FETs and diodes?
Edit: ok i gues i need diodes so save the MOS FET when the power is shut down, but why do i need a MOS FET at the first place, since i dont want to controll the voltage level of the pusher.
How much current do these pushers use? How much can a pin of the Arduino sink or source?
I would like to start with 10 pusher, do i still need Arduino Mega? Or is a normal one enough?
And why do i need MOS FETs and diodes?
Edit: ok i gues i need diodes so save the MOS FET when the power is shut down, but why do i need a MOS FET at the first place, since i dont want to controll the voltage level of the pusher.
Those solenoids may not fit your measurements, check clearances.
MOS FETs are a much better choice than BJTs when driving solenoids.
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