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Topic: How to identify the pins on arduino Mega2560 (Read 846 times) previous topic - next topic

sirram

Someone gave me a Mega2560 board and I decided to have a play. So, a couple of days ago, I bought a Sunfounder "Super Kit for Arduino" and have already built a very simple circuit (to make an LED blink). The Arduino IDE seems straightforward but I'm finding the actual board a bit hit and miss - particularly the Power pin slots.

The white writing on the board indicates 7 Power pins (IOREF, RESET, 3.3v, 5v, GND, GND, Vin) but the black plastic strip alongside the white writing has 8 pin slots, not 7.

To make things worse, the white writing is misaligned with the actual pin slots. Each word (e.g. RESET) is sitting precisely between two different pin slots on my particular board.

Can anyone point me to an explanation please? As it is, I'm worried about blowing the board before I've even started.

spycatcher2k

I suggest you use google, find an image of a MEGA, and look at that! - now that was not difficult, was it?
Mrs Drew
-=-
http://www.uk-pcb.co.uk - UK PCB Fab Company
I will design & code for you, but I will also charge you (PM me)
If you don't like my answers, realize : I'm not being cheeky, I'm Just trying to prompt you to use your own brain/google etc.


sirram

Above sarcasm was unwarranted. This was my first post on this forum (and probably my last now). It was an explanation and confirmation I was looking for.

So thanks very much "pert" for the excellent picture, which answers the question - i.e. the top pin is NC. Yours is a far clearer diagram than anything I found.

spycatcher2k

sarcasm? I tell you how to find information yourself compliment you on your new found ability and you act like this? I am glad you will never use this forum again!
Mrs Drew
-=-
http://www.uk-pcb.co.uk - UK PCB Fab Company
I will design & code for you, but I will also charge you (PM me)
If you don't like my answers, realize : I'm not being cheeky, I'm Just trying to prompt you to use your own brain/google etc.

CrossRoads

You can find schematics for the different boards on the Products page also. They would be the definite source as to what's connected. Everything else, like the pighixxx drawings, are derived from that.
https://www.arduino.cc/en/Main/ArduinoBoardMega2560
I wasn't aware the real Arduino boards had labels on the connectors, but I haven't bought one in ages either.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

pert

They have custom printed headers now:

but I seem to only see pictures of the .org boards with those.

It looks like the mega only has some of the headers printed:

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