Hello

Using Arduino Project Guidance
1

Hi,

I am new to Arduino, in fact even havn't bought one :p, but i have been a long time raspberry pi user and am now finally buying my first arduino, a Mega 2560 to be precise, right after my exams get over.
I do have a few noob questions

  1. Can I have my Pi receive and send data to arduino mega 2560 over USB?

  2. Is it possible to power my Mega 2560 via 5v VIN?

  3. How much current does it draw at idle without anything attached to it?

thank you!

2

  1. Power it via Vcc if powering with 5v. VIN goes through regulator, so you won't get 5v out if you put 5v in there.

  2. 50mA or so iirc? That can be lowered significantly with power management (also by removing the power LED from the board :wink: ) but the Arduino boards aren't designed with an eye to power efficiency.

3
  • Yup! Just plug the Mega into USB on the Pi. Make sure not to hook the Pi GPIOs to the Arduino (the Arduino is higher voltage, but is automatically converted to the higher voltage with USB)
  • Yes. Just connect a 5V signal to Arduino 5V (DrAzzy, you don't need to connect to VIN when you already have a regulated 5V source)
4

lights0123 - that's what I said, don't use VIN :stuck_out_tongue: But I forgot on the Uno/Mega the 5v pin is marked 5v, not Vcc (like on pro mini - I've never had a "full size" board)

5

See Azzy, size DOES matter.....

6

please what type and size of arduino board can i use for a quadcopter of about 35cm

7

HelpNovice:
please what type and size of arduino board can i use for a quadcopter of about 35cm

If you have already settled all the other design features I think this question will answer itself.

If you have not already settled the other design features then that is where you need to start. A quadcopter is a complex project and I suspect the choice of Arduino board is not the major issue.

...R

PS, I was going to complain about hijacking @ric96's Thread with a completely irrelevant question - but as he was silly enough to title the Thread "Hello" I figured he has only himself to blame.
And you wil also suffer because people will not know the Thread has anything to do with a quadcopter.

8

@Robin2 Ok! noted. I'm new in this andthanks for the reply.

9

Robin2:
If you have already settled all the other design features I think this question will answer itself.

If you have not already settled the other design features then that is where you need to start. A quadcopter is a complex project and I suspect the choice of Arduino board is not the major issue.

...R

PS, I was going to complain about hijacking @ric96's Thread with a completely irrelevant question - but as he was silly enough to title the Thread "Hello" I figured he has only himself to blame.
And you wil also suffer because people will not know the Thread has anything to do with a quadcopter.

ok! noted. i'm new in this and thanks a lot for the reply