- #1
G30RG3
- 2
- 0
RFID or better alternative??
I want to be able to transmit and receive a signal from one device to another; the devices need to be very small and very inexpensive.. I'm hoping for it to work over quite a long distance; definitely more than just 10m.. also if a battery or energy source is required that's fine, i can work to sort that out..
any suggestions? rfid seems to be quite useful; but what about bluetooth and any others? could i also not just use a simple radio wave?
i don't need to transmit any data, only a signal that can be sent and receivedd
I want to be able to transmit and receive a signal from one device to another; the devices need to be very small and very inexpensive.. I'm hoping for it to work over quite a long distance; definitely more than just 10m.. also if a battery or energy source is required that's fine, i can work to sort that out..
any suggestions? rfid seems to be quite useful; but what about bluetooth and any others? could i also not just use a simple radio wave?
i don't need to transmit any data, only a signal that can be sent and receivedd