Hi, I'm working on the usual obstacle detection using HC-SR04. Basically, when an obstacle is detected, a vibration motor will switch on. Obstacle detection is just a part of my study. My professor requested me to measure the response time. Meaning, the time difference between detection of the hc-sr04, and the activation of the vibration motor. I know it's less than a second. Does anyone know a thing or two on how to do it? Thank you.
If you need anything like the code, photo, or whatsoever, just tell me. Thank you again.