Nick_Pyner:
Nothing to see, but don't even bother posting anything with a 9v PP3 battery
I have fixed the image.
Yeah I had noticed reading on other tutorials and projects that the 9V battery is a poor choice.
I figured a powerbank would be a good reliable source of 5V power and so easy to just plug straight into the micro usb plug on the arduino micro, FYI it has an output of 1000mA or 2100mA depending on what USB plug you use, I think 1000mA would be more than enough for the arduino though.