I find I’m buying a lot of nodemcu/d1 mini type boards, to stick around my property to control things/gather data.
When it’s next to a 12v gate motor, powering it is easy, but often times the closest power source is 240v AC.
I’ve got a few old phone chargers I can use for a while, but will run out at some point. Then, from what I can see, AC-DC transformers are all in the same form (plug), and cost R80 - R120, which is very close to the price of the board to start with.
Is there an easier/cheaper option I’m missing?