PropWare  3.0.0.229
C++ objects and CMake build system for Parallax Propeller
ping.c
1 #include "simpletools.h"
2 
3 int ping(int pin)
4 {
5  pause(1);
6  low(pin);
7  pulse_out(pin, 10);
8  return pulse_in(pin, 1);
9 }
10 
11 int ping_cm(int pin)
12 {
13  long tEcho = ping(pin);
14  int cmDist = tEcho / 58;
15  return cmDist;
16 }
17 
18 int ping_inches(int pin)
19 {
20  long tEcho = ping(pin);
21  int inDist = tEcho / 148;
22  return inDist;
23 }
ping_cm
int ping_cm(int pin)
Report Ping))) measurement as a centimeter distance.
Definition: ping.c:11
ping_inches
int ping_inches(int pin)
Report Ping))) measurement as an inch distance.
Definition: ping.c:18
pause
void pause(int time)
Delay cog from moving on to the next statement for a certain length of time.
Definition: libws2812.c:125
low
void low(int pin)
Set an I/O pin to output-low.
Definition: low.c:19
simpletools.h
This library provides convenient functions for a variety of microcontroller I/O, timing,...
pulse_in
long pulse_in(int pin, int state)
Measure the duration of a pulse applied to an I/O pin.
Definition: pulseIn.c:19
pulse_out
void pulse_out(int pin, int time)
Transmit a pulse with an I/O pin.
Definition: pulseOut.c:19
ping
int ping(int pin)
Measure echo time in terms of Propeller system clock ticks.
Definition: ping.c:3
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