wanbong
Newbie level 5
I'm working on a project using IR Led and IR detector to control a relay.
I created a circuit using 555 timer to create 38Khz square wave so that my IR Led can transmit at 38Khz.
Can anyone explain to me what kind of signal that will be output from the IR detector? As I saw from the oscilloscope my IR detector receive a wave form that look like
-|---|---|---|---|---|
the ' | ' appear when my IR Led waveform has an edge.
If this is correct I don't know how to control a relay from this signal output.
I created a circuit using 555 timer to create 38Khz square wave so that my IR Led can transmit at 38Khz.
Can anyone explain to me what kind of signal that will be output from the IR detector? As I saw from the oscilloscope my IR detector receive a wave form that look like
-|---|---|---|---|---|
the ' | ' appear when my IR Led waveform has an edge.
If this is correct I don't know how to control a relay from this signal output.