Hey guys, I recently purchased an "IR obstacle" module known as "FC-51".
Sensor, circuit and the rest of the components can be seen here.
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This is essentially a sensor which detects objects infront of it by emitting IR signals onto an object,
which in turn reflects it and the signal is cought by an IR reciever which then outputs a signal.
I would like to turn this into a "touchless / waving" switch; by that I mean I would like to somehow make the signal
output trigger a relay and latch it so it doesn't change state until a new signal is detected.
_____________________________________________________________________________________________________________________
Practical example of what it does:
Put your hand in front of the sensor and it triggers a relay and turns on a LED strip
Move your hand away and it shuts the relay / led strip off.
_____________________________________________________________________________________________________________________
Practical example of what I want it to do:
Put your hand in front of the sensor to trigger a relay and turn on an LED strip
Move your hand a way and the relay / LED strip will stay on until you put your hand back again.
_____________________________________________________________________________________________________________________
I'm aware that there are bistable / impulse relay modules out there, but I'd rather try and learn something new. I suppose I'm looking for a latching ciricuit that latches a digital signal rather than a mechanical switch input which is somewhat commonly seen.
Trouble is I don't even know where to start as this is the first time I'm encountering something like this and I wasn't educated in the field of electronics. I'm guessing that either transistors or 555 timer or some flip flop circuit is needed to latch the signal.
_____________________________________________________________________________________________________________________
I would appreciate any help with this matter, cheers.
Sensor, circuit and the rest of the components can be seen here.
_____________________________________________________________________________________________________________________
This is essentially a sensor which detects objects infront of it by emitting IR signals onto an object,
which in turn reflects it and the signal is cought by an IR reciever which then outputs a signal.
I would like to turn this into a "touchless / waving" switch; by that I mean I would like to somehow make the signal
output trigger a relay and latch it so it doesn't change state until a new signal is detected.
_____________________________________________________________________________________________________________________
Practical example of what it does:
Put your hand in front of the sensor and it triggers a relay and turns on a LED strip
Move your hand away and it shuts the relay / led strip off.
_____________________________________________________________________________________________________________________
Practical example of what I want it to do:
Put your hand in front of the sensor to trigger a relay and turn on an LED strip
Move your hand a way and the relay / LED strip will stay on until you put your hand back again.
_____________________________________________________________________________________________________________________
I'm aware that there are bistable / impulse relay modules out there, but I'd rather try and learn something new. I suppose I'm looking for a latching ciricuit that latches a digital signal rather than a mechanical switch input which is somewhat commonly seen.
Trouble is I don't even know where to start as this is the first time I'm encountering something like this and I wasn't educated in the field of electronics. I'm guessing that either transistors or 555 timer or some flip flop circuit is needed to latch the signal.
_____________________________________________________________________________________________________________________
I would appreciate any help with this matter, cheers.