Hi! I have a problem trying to read 2 HCSR04 at once. I've used the simple code and the Ultrasonic and NewPing Libraries, but the problem is the same.
Both sensors are facing in the same direction, but 45 cm apart. The problem is that when I put an object to one of them, and slowly putting away, around 25 cm the other sensor would start showing a reading, but around 95-99 cm. Are their getting interfences from one another? Because if dont put any object on them, both of them will show no reading (0cm), because the max distance is 100cm. Could be the wiring?
The two sensors have their echo and trigger pins each.