DISTANCE

d = DISTANCE(trig, echo)

‘trig’ is the I/O pin connected to the “trig” input of the sensor.

‘echo’ is the pin connected “echo” output of the sensor

You can also use 3-pin devices and in that case only one pin number is specified.

The value returned is the distance in centimeters to the target or -1 if no target was detected.

If you repeatedly call this function you must arrange for a delay of at least 60mS between each call otherwise errors may occur (caused by an echo from the previous sound pulse).

The I/O pins are automatically configured by this function but note that they should be 5V capable as the HC-SR04 is a 5V device.

Applies to:

CGCOLORMAX

CGMMSTICK

CGMICROBOARD

CGMICROMITE