I have a PIR sensor module based on BIS00001 IC. I am using the 3.3 VDC output signal of the sensor module to trigger an LED matrix using a low side NPN transistor and a current limiting resistor.
However, the problem is that after the preset time of the sensor, the LED resets, turning off, instead of continuing to remain ON if the human is present in a steady position. It remains ON if the human is in constant motion.
I have come across an article with some details on the PIR light controller which uses 555 timer as a missing pulse detector. However, I am unable to comprehend if it can keep the light source ON even when the IR source is not in motion.
Is there a way keep the LED ON, even when the human is in steady position and not in motion?