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Contents
class ParallaxPing < ArduinoPlugin
# RAD plugins are c methods, directives, external variables and assignments and calls
# that may be added to the main setup method
# function prototypes not needed since we generate them automatically
# directives, external variables and setup assignments and calls can be added rails style (not c style)
# add to directives
# plugin_directives "#define EXAMPLE 10"
# add to external variables
# external_variables "int foo, bar"
# add the following to the setup method
# add_to_setup "foo = 1";, "bar = 1;" "sub_setup();"
# one or more methods may be added and prototypes are
# Methods for the Parallax Ping)) UltraSonic Distance Sensor.
#
# Example:
#
# class RangeFinder < ArduinoSketch
# serial_begin
#
# external_vars :sig_pin => 'int, 7'
#
# def loop
# serial_println(ping(sig_pin))
# delay(200)
# end
# end
# Triggers a pulse and returns the delay in microseconds for the echo.
int ping(int pin) {
pinMode(pin, OUTPUT);
digitalWrite(pin, LOW);
delayMicroseconds(2);
digitalWrite(pin, HIGH);
delayMicroseconds(5);
digitalWrite(pin, LOW);
pinMode(pin, INPUT);
return pulseIn(pin, HIGH);
}
end
Version data entries
16 entries across 16 versions & 4 rubygems