Data Sheet

Model : HG-P40 Series
Ultrasonic Proximity Sensor & Module
▣ The principle of perceiving proximal object within 40cm range.
※ There will be no quantitative distance value. This is only for determining the
object existence and non-existence
5 V
OBJECT
Housing
Echo1
Echo2
Echo3
Masked
(Removed)
Echo1
Echo2
Echo3
①
②
③
④
※ Surface of the
housing may
cause different
result.
• Masking signal(Internal) to remove
the first received interrupt signal.
• When the object is close, multi
Echo(Flutter Echo) will be generated.
Echo1(Sometimes to Echo2) may be
masked(removed) since the signal
moves so fast.
• The Echo signal perceived after Echo2
(Echo3) will be converted to digital
format(signal).
• The Echo signal perceived after Echo2
(Echo3) is in the preset range that it
is recognized as an ‘Object.’