I have a laser sensor that randomly triggers on sunlight.
The signal is fed to an opti-coupler to a FTDI chip.
I am looking for advice for the easiest solution to take out these false positives which can be up to 250 ms.
The problem appears to be the opto-coupler which is switching at less than 1 V DC and simple resistor / capacitor circuits take to long to discharge. :(
I'm guessing it's going to be some sort of logic circuit.
Any guidance given would be appreciated.
Edit Currently under the winter sun where - worst case is 250ms / Second