score:3
(I live in New Zealand and play with electronics as well). It should not be an issue. I've travelled from Auzzie to NZ with lots of bits and pieces from started IOT projects on a conference (including tools like soldering irons and multimeters). No one cared or battered an eyelid. I've also carried lots of electronics in and out of New Zealand for other projects - never had an issue.
I'd suggest putting the electronics in checked baggage, but any Lithium batteries need to be carry-on. (Lithium batteries in carry-on is some kind of aviation law requirement in most parts of the world). Similarly, wire cutters and tools need to go in checked baggage or they risk confiscation.
From a point of view of bringing the stuff into NZ, you are fine as well, They only really care about things which could carry pests or disease - although there are tight rules around food and plant type stuff. (They don't count computer virii :>)
Upvote:3
I had no problem at all carrying a similar setup for Raspberry Pi a few months ago on Emirates as hand baggage into NZ, including wires, "hat boards", motors and sensors. I did not carry any batteries - I would suggest you buy those locally if you can avoid taking them.
I did get asked at Heathrow and at Bangkok what it all was, but that barely held me up for 30 seconds.