I must start by saying I have very little electronics knowledge .
My Project
One of my pass-times is making and using film cameras the latest ( I hope) will be Arduino powered , for starters I have purchased the required components and done a lot of web searching for a wiring diagram . So far the only down side is when I purchased the Arduino board I didn't realize it was a pirate copy, when I plug it in shows error message "avrdude verification error; content mismatch" . So I did the right thing and binned it and have now purchased another one that the vendor insures me it's a real Arduino.
My first question is about the power supply can I plug in a 9v battery using the little black port on the bottom left hand side, or is it best wired ito the +- rail with some type of protection for the board.
Over the next few weeks I'm sure I will have a more few questions .
Colin
Ps the camera is in the style of the 1900 falling plate camera. My camera will take six images with each loading and be of a pinhole type.
ColRay:
My first question is about the power supply can I plug in a 9v battery using the little black port on the bottom left hand side...
Absolutely, see here for some info.. Just be aware that 9V batteries have some drawbacks- they are fairly low capacity and can't supply much current.
ColRay:
...when I purchased the Arduino board I didn't realize it was a pirate copy, when I plug it in shows error message "avrdude verification error; content mismatch" . So I did the right thing and binned it and have now purchased another one that the vendor insures me it's a real Arduino.
Where did you buy it from? The Uno has been around for so long that most clones are functionally indistinguishable from the genuine article.
9V batteries are suitable only for powering smoke alarms. Their capacity is very low, and because most Arduino are 5V devices and they are 9V, almost half the battery's energy will be wasted.
3xAA or 3xAAA is better, or if using rechargeable, 4xAA/AAA. As you mentioned, this can be fed to the Arduino's 5V and ground pins.