Hi guys, Carlos, Arhu
sorry i lost the forum address for a while, took me some time to find it !
thanks a lot for your answer and guiding me in my first steps
Ok it's not keep tabs on my friends
it's more like a fidelity program.
For example I would like to give customers a special badge when they are getting close to the my business I would like to be able to know that they are getting close to provide them with a good sales rep
(for example)
So I need the badge to be picked up from about between 100m and 200m
Use very minimal power
On the other side it does not matter.
When it gets back the signal from the badge I can be averted throug the speaker.
I have no idea how to start, i would like to use possibilly out of the shelf products
thank you for your kind help,
regards