I am actually developing(evaluating) a solution for container/goods tracking.
For that I need a (hw)module which can send its current GPS-Position via SMS to a defined location.
There will be no external Power-Source, so I have to find a product with low electric power consumption (no Handy).
The module shall only have an interface for programming purposes.
Is there a solution for that here?
If yes, how much are the costs/module?