My problem is that I have to control (turn on and off) one LASER that is placed inside an aluminium can (not like soda can, but one 2 mm thick).
So the question is if there's any way to do that wirelessly. I've been thinking about Bluetooth and Zigbee but in my initial research I've found data may not be able to 'go through' the aluminium.
I've been thinking about IR, but it may not fit my idea because I have a camera shoting pics of the can, so the IR led may affect the images.
Any thoughts on that? Any other solution? Is there some tech that I could look for that would suit my problem?
Thanks in advance