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examples/serialRead.c

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+/*
+ * serial.c:
+ *	Example program to read bytes from the Serial line
+ *
+ * Copyright (c) 2012-2013 Gordon Henderson. <[email protected]>
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include <wiringSerial.h>
+
+int main ()
+{
+  int fd ;
+
+  if ((fd = serialOpen ("/dev/ttyS2", 115200)) < 0)
+  {
+    fprintf (stderr, "Unable to open serial device: %s\n", strerror (errno)) ;
+    return 1 ;
+  }
+
+// Loop, getting and printing characters
+
+  for (;;)
+  {
+    putchar (serialGetchar (fd)) ;
+    fflush (stdout) ;
+  }
+}

examples/serialTest.c

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+/*
+ * serialTest.c:
+ *	Very simple program to test the serial port. Expects
+ *	the port to be looped back to itself
+ *
+ * Copyright (c) 2012-2013 Gordon Henderson. <[email protected]>
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include <wiringPi.h>
+#include <wiringSerial.h>
+
+int main ()
+{
+  int fd ;
+  int count ;
+  unsigned int nextTime ;
+
+  if ((fd = serialOpen ("/dev/ttyAMA0", 115200)) < 0)
+  {
+    fprintf (stderr, "Unable to open serial device: %s\n", strerror (errno)) ;
+    return 1 ;
+  }
+
+  if (wiringPiSetup () == -1)
+  {
+    fprintf (stdout, "Unable to start wiringPi: %s\n", strerror (errno)) ;
+    return 1 ;
+  }
+
+  nextTime = millis () + 300 ;
+
+  for (count = 0 ; count < 256 ; )
+  {
+    if (millis () > nextTime)
+    {
+      printf ("\nOut: %3d: ", count) ;
+      fflush (stdout) ;
+      serialPutchar (fd, count) ;
+      nextTime += 300 ;
+      ++count ;
+    }
+
+    delay (3) ;
+
+    while (serialDataAvail (fd))
+    {
+      printf (" -> %3d", serialGetchar (fd)) ;
+      fflush (stdout) ;
+    }
+  }
+
+  printf ("\n") ;
+  return 0 ;
+}

examples/servo.c

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+/*
+ * servo.c:
+ *	Test of the softServo code.
+ *	Do not use this code - use the servoBlaster kernel module instead
+ *
+ * Copyright (c) 2012-2013 Gordon Henderson. <[email protected]>
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#include <wiringPi.h>
+#include <softServo.h>
+
+int main ()
+{
+  if (wiringPiSetup () == -1)
+  {
+    fprintf (stdout, "oops: %s\n", strerror (errno)) ;
+    return 1 ;
+  }
+
+  softServoSetup (0, 1, 2, 3, 4, 5, 6, 7) ;
+
+  softServoWrite (0,  0) ;
+/*
+  softServoWrite (1, 1000) ;
+  softServoWrite (2, 1100) ;
+  softServoWrite (3, 1200) ;
+  softServoWrite (4, 1300) ;
+  softServoWrite (5, 1400) ;
+  softServoWrite (6, 1500) ;
+  softServoWrite (7, 2200) ;
+*/
+
+  for (;;)
+    delay (10) ;
+
+}

examples/softPwm.c

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+/*
+ * softPwm.c:
+ *	Test of the software PWM driver. Needs 8 LEDs connected
+ *	to the Pi - e.g. Ladder board.
+ *
+ * Copyright (c) 2012-2013 Gordon Henderson. <[email protected]>
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#include <wiringPi.h>
+#include <softPwm.h>
+
+#define RANGE		100
+#define	NUM_LEDS	  8
+
+int ledMap [NUM_LEDS] = { 0, 1, 2, 3, 4, 5, 6, 7 } ;
+
+int values [NUM_LEDS] = { 0, 25, 50, 75, 100, 75, 50, 25 } ;
+
+int main ()
+{
+  int i, j ;
+  char buf [80] ;
+
+  wiringPiSetup ()  ;
+
+  for (i = 0 ; i < NUM_LEDS ; ++i)
+  {
+    softPwmCreate (ledMap [i], 0, RANGE) ;
+    printf ("%3d, %3d, %3d\n", i, ledMap [i], values [i]) ;
+  }
+
+  fgets (buf, 80, stdin) ;
+
+// Bring all up one by one:
+
+  for (i = 0 ; i < NUM_LEDS ; ++i)
+    for (j = 0 ; j <= 100 ; ++j)
+    {
+      softPwmWrite (ledMap [i], j) ;
+      delay (10) ;
+    }
+
+  fgets (buf, 80, stdin) ;
+
+// All Down
+
+  for (i = 100 ; i > 0 ; --i)
+  {
+    for (j = 0 ; j < NUM_LEDS ; ++j)
+      softPwmWrite (ledMap [j], i) ;
+    delay (10) ;
+  }
+
+  fgets (buf, 80, stdin) ;
+
+  for (;;)
+  {
+    for (i = 0 ; i < NUM_LEDS ; ++i)
+      softPwmWrite (ledMap [i], values [i]) ;
+
+    delay (50) ;
+
+    i = values [0] ;
+    for (j = 0 ; j < NUM_LEDS - 1 ; ++j)
+      values [j] = values [j + 1] ;
+    values [NUM_LEDS - 1] = i ;
+  }
+}

examples/softTone.c

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+/*
+ * softTone.c:
+ *	Test of the softTone module in wiringPi
+ *	Plays a scale out on pin 3 - connect pizeo disc to pin 3 & 0v
+ *
+ * Copyright (c) 2012-2013 Gordon Henderson. <[email protected]>
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#include <wiringPi.h>
+#include <softTone.h>
+
+#define	PIN	3
+
+int scale [8] = { 262, 294, 330, 349, 392, 440, 494, 525 } ;
+
+int main ()
+{
+  int i ;
+
+  wiringPiSetup () ;
+
+  softToneCreate (PIN) ;
+
+  for (;;)
+  {
+    for (i = 0 ; i < 8 ; ++i)
+    {
+      printf ("%3d\n", i) ;
+      softToneWrite (PIN, scale [i]) ;
+      delay (500) ;
+    }
+  }
+}