Development of Smart-Safe Using Radio Frequency Energy Harvesting

This paper developed Smart-Safe prototype powered by Radio Frequency Energy Harvesting, one form of energy harvesting that regardless its lowest output power among other energy harvesting forms, its all the time availability, batteryless and readiness everywhere make its own advantages no other type of energy harvesting have. A 3 Watt stand-alone power transmitter at frequency 915 Mhz used to test the prototype to replace the ambient available radio frequency resources. The results showed the Smart-safe prototype works properly, able to detect different coins insert and send alarm to owner.