Design low-duty-cycle timer circuits This Design Idea uses the TLC555 CMOS timer for a standard, greater-than-50%-duty-cycle, low-frequency design. 555 makes handy voltage-to-time converter This ...

This motion detector alarm can detect a moving person from a distance of 1 meter. It uses a dual IR Transmitter-Receiver module HOA1405. When the sensor detects the reflected IR rays, alarm will sound ...

Reconstruction of a connectome within the fruitfly visual medulla, containing more than 300 neurons and over 8,000 chemical synapses, reveals a candidate motion detection circuit; such a circuit ...