Recent content by MartijnNL

Thanks so much guys for the divers ;) but valuable insights. Bluetooth might be the way to go, what do you reckon 'out of range' would be distance wise? Any way I would be able to get close to like a 5 meter range (no walls this time, anorlunda you are right :) ). But we also don't want like the...

Hi there, As currently work for company that builds mobile apps I am looking into a way to measure whether a smartphone is outside a 5 meter range. As I am not an engineer I hope your expertise can help me out in order to come up with a right direction for further research. NFC, RFID, GPS...