I get the nRF24L01+ devices for about £2 each.
I suspect 20m would be a long range for IR - especially if it has to compete with sunlight - but I have no direct experience. I have only tried it within a room.
...R
I get the nRF24L01+ devices for about £2 each.
I suspect 20m would be a long range for IR - especially if it has to compete with sunlight - but I have no direct experience. I have only tried it within a room.
...R