Hi guys
I am working on a proximity sensor with IR Led and IR receiver, it needs to detect a hand or other object in about 75mm.
First I use this TSOP6238TR, it all work well except that it pick up the signal all the time in dark, due to the auto gain control in the chip, it has a very high gain in the dark, it can pick up signal relect from other object far away.
So I replaced it with this TSOP5038TT, this one work fine in the dark, but it will pick up the signal from my engery saving light bulb all the time, so my normal signal is swampped by the signal from my energy saving light bulb.
So what kind of IR receiver do I need to be able to work in the dark, and doesn't effect by energy saving light bulb?
Carry frequency is not so important as I can change the code in software, as long as it's do-able with a 8bit timer and 1MHz clock.
Thanks guys
I am working on a proximity sensor with IR Led and IR receiver, it needs to detect a hand or other object in about 75mm.
First I use this TSOP6238TR, it all work well except that it pick up the signal all the time in dark, due to the auto gain control in the chip, it has a very high gain in the dark, it can pick up signal relect from other object far away.
So I replaced it with this TSOP5038TT, this one work fine in the dark, but it will pick up the signal from my engery saving light bulb all the time, so my normal signal is swampped by the signal from my energy saving light bulb.
So what kind of IR receiver do I need to be able to work in the dark, and doesn't effect by energy saving light bulb?
Carry frequency is not so important as I can change the code in software, as long as it's do-able with a 8bit timer and 1MHz clock.
Thanks guys