The MP3 sounds using a memory card is a circuit connected to motion detection sensors. The operation starts when the sensor detects the movement of living things. It then triggers the circuit to send a signal to play sound messages. This is commonly used to display welcoming messages, various alerts, and more.
TECHNICAL DATA
Power supply : 5VDC, maximum current consumption of 250mA.
Utilize a motion detection sensor or PIR motion sensor for detection.
Detection Range : Up to 3 meters.
The sensor module includes LEDs that indicate the detection status.
Two operating modes can be selected : One-time mode and Loop mode is activated when the sensor signal remains active.
It supports the use of MICRO SD with a maximum capacity of 32MB.