Hope this is the right subforum and that I won't get castrated for asking about Seeeduino on an Arduino forum...
I've had a few projects in mind for years and have never been scared of the programming aspect, but have always been stumped on the hardware. Today I ordered a Seeeduino Mega and my first project will consist of driving a bunch of LEDs individually.
The board claims 40mA draw from each pin, so I'm assuming it'll be safe to run 2 LEDs each with a 20mA draw. Today I've found some nifty calculators that will tell me which resistors I will need to safely power the LEDs.
One of my questions... Can I just use 1 pin per 2 LEDs, and ground all of them to the same common ground?
Another is regarding power supply. I found a 5vdc 1A wall adapter and a 6.5vdc 2A I can use. I also plan to power a water pump. Would there be any issue running the water pump and Seeeduino from the same adapter? Would there be any problems with supplying a lower voltage than used by the pump for a lower pump rate?
For powering the LEDs and such, what connectors can I use for the pins? I haven't seen anything on the electronics sites that look like they'd be used for that purpose. IF I can share a common ground for all the LEDs, can someone suggest some 1 and 2 pin connectors that will work with this board, preferably cheap and preferably with some wire attached?
I think that will take care of all my questions. Sorry if they're extremely newbish :)