In the Two Ultrasonic Sensors Unit Test , what is the purpose of UsonicISR()?

Question

In the  Two Ultrasonic Sensors Unit Test , what is the purpose of UsonicISR()?

Answer

d.  None of the options

Answer

b.  It is the trigger signal ISR during trigger pin falling edge only

Answer

c.  It is the echo signal ISR during echo pin rising and falling edge

Answer

a.  It is the echo signal ISR during echo pin rising edge only

Answer

e.  It is the trigger signal ISR during trigger pin rising and falling edge

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