Hi guys
I got this IR sensor from a local store LBT-3338A, no datasheet on Internet, it suppose to have a carrier frequency of 56KHz and peak detection wavelength of 940nm.
I am sending the signal with a matching 940nm infrared LED.
so if I do this, it can detect the signal:
but if I do this, it can not detect the signal:
but if I do this, it can detect the signal for the first few seconds, then the signal is gone:
if that a feature of all the IR sensor, or just me doing it wrong?
I got this IR sensor from a local store LBT-3338A, no datasheet on Internet, it suppose to have a carrier frequency of 56KHz and peak detection wavelength of 940nm.
I am sending the signal with a matching 940nm infrared LED.
so if I do this, it can detect the signal:
Rich (BB code):
while(1)
{
burst_of_pulse_at_56KHz(1800us);
delay(20ms); //or any delay greater than 20ms
}
Rich (BB code):
while(1)
{
burst_of_pulse_at_56KHz(1800us);
}
Rich (BB code):
while(1)
{
burst_of_pulse_at_56KHz(1800us);
delay(10ms); //or any delay less than 10ms
}