SRF05-HY

SRF05-HY - Ultra-Sonic Ranger Technical Specification Introduction The SRF05-HY is an evolutionary step from the SRF04-HY, and has been designed to increase flexibility, increase range, and to reduce costs still further. As such, the SRF05-HY is fully compatible with the SRF04-HY. Range is increased from 3 meters to 4 meters. A new operating mode (tying the mode pin to ground) allows the SRF05HY to use a single pin for both trigger and echo, thereby saving valuable pins on your controller. When the mode pin is left unconnected, the SRF05-HY operates with separate trigger and echo pins, like the SRF04. The SRF05-HY includes a small delay before the echo pulse to give slower controllers such as the Basic Stamp and Picaxe time to execute their pulse in commands. Mode 1 - SRF04-HYcompatible - Separate Trigger and Echo This mode uses separate trigger and echo pins, and is the simplest mode to use. All code examples for the SRF04-HY will work for the SRF05-HY in this mode. To use this mode, just leave the mode pin unconnected - the SRF05-HY has an internal pull up resistor on this pin. Mode 2 - Single pin for both Trigger and Echo This mode uses a single pin for both Trigger and Echo signals, and is designed to save valuable pins on embedded controllers. To use this mode, connect the mode pin to the 0v Ground pin. The echo signal will appear on the same pin as the trigger signal. The SRF05-HY will not raise the echo line until 700uS after the end of the trigger signal. You have th...