I need, the 940nm wavelength, to be detected only by one receiver (with no scattering - ir beam) and the 850nm only by the other one. Is this possible?
I'm thinking of buying an Wrobot Digital 38KHz receiver/transmitter. Does anyone knows it's wavelength?
A 850nm sensor and a 940nm will both respond to either wavelength emitter, it is just that the sensitivity will be less.
What about with a 300nm and 940nm instead?