[Clint] was working with the Arduino library, based on the Parallax PING, which uses a single pin ... he also modified the HC-SR04 sensor by removing the on-board pull-up resistor and adding ...

[Clint] was working with the Arduino library, based on the Parallax PING, which uses a single pin ... he also modified the HC-SR04 sensor by removing the on-board pull-up resistor and adding ...

The latest project Heck created some sort of sensor that attaches ... timing and distance with Parallax ping sensors and connecting LEDs to writing the code for the Arduino chipKIT inside and ...