question for you all that have more experience than I... so most of you...
will an IR sensor pick up indirect IR light, for example rather than having a IR LED pointed directly at an IR sensor, if the IR LED was pointed at a surface and the IR sensor pointed at the same surface, will the IR sensor pick up the IR light on the surface... if that doesn't make sense then perhaps this will.. an IR LED and an IR Sensor both pointed at a wall directly in front of them. will the sensor pick up the IR light that is on the wall.
also does a IR Sensor work the same way as a LDR? (change resistance depending on light) or is it an on/off situation.
will an IR sensor pick up indirect IR light, for example rather than having a IR LED pointed directly at an IR sensor, if the IR LED was pointed at a surface and the IR sensor pointed at the same surface, will the IR sensor pick up the IR light on the surface... if that doesn't make sense then perhaps this will.. an IR LED and an IR Sensor both pointed at a wall directly in front of them. will the sensor pick up the IR light that is on the wall.
also does a IR Sensor work the same way as a LDR? (change resistance depending on light) or is it an on/off situation.