Ping Ultrasonic Sensor

Ping Ultrasonic SensorThe PING's sensor measures distance using sonar; an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance to target is determined by measuring the time required for the echo return. Output from the PING's sensor is a variable width pulse that corresponds to the distance to the target. Interfacing to the BASIC Stamp and Javelin Stamp microcontrollers is a snap: a single (shared) I O pin is use to trigger the Ping sensor

The PING's sensor measures distance using sonar; an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance-to-target is determined by measuring the time required for the echo return. Output from the PING's sensor is a variable-width pulse that corresponds to the distance to the target.Interfacing to the BASIC Stamp and Javelin Stamp microcontrollers is a snap: a single (shared) I/O pin is use to trigger the Ping sensor and "listen" for the echo return pulse. And the intelligent trigger hold-off allows the PING to work with the BS1! An onboard three-pin header allows the PING to be plugged into a solderless breadboard (on a Boe-Bot, for example), and to be connected to its host through a standard three-pin servo extension cable.

• Simple pulse in / pulse out communication
• Indicator LED shows measurement in progress
• Input Trigger - positive TTL pulse, 2 uS min, 5 uS typ.
• Echo Pulse - positive TTL pulse, 115 uS to 18.5 mS
• Echo Hold-off - 350 uS from fall of Trigger pulse
• Burst Frequency - 40 kHz for 200 uS
• Size - 22 mm H x 46 mm W x 16 mm D (0.85 in x 1.8 in x 0.6 in)