I am an electronics engineer and electronics enthusiast with the desire to monitor different parameters at different times.
I've created a small X-Y-Z planes accelerometer, which I would like to take to the airplane to measure accelerations during takeoff and landing.
May I have any kind of problems carrying this item on the plane, for which I will add a switch and a 9V battery?
What are actual regulations about DIY electronics? I know you can carry a laptop, tablet, phone, camera, etc., but DIY?
PS: Would it make easier to carry if I'd put it into a 3D-printed case?
PS2: I forgot to mention it, I'm flying inside the EU with Ryanair and Easyjet.