+ test sketches

libraries/PCF8574/examples/PCF8574_test/PCF8574_test.ino

@@ -0,0 +1,65 @@
+
+//
+//    FILE: PCF8574_test.ino
+//  AUTHOR: Rob Tillaart
+//    DATE: 7-febr-2013
+//
+// PUPROSE: test PCF8574 library
+//
+
+#include "PCF8574.h"
+#include <Wire.h>
+
+PCF8574 PCF_01(0x38);
+
+void setup()
+{
+  Serial.begin(9600);
+  Serial.print("PCF8574_test version: ");
+  Serial.println(PCF8574_LIB_VERSION);
+
+  int x = PCF_01.read8();
+  Serial.print("Read ");
+  Serial.println(x, HEX);
+  delay(1000);
+}
+
+void loop()
+{
+  Serial.println("HLT");
+  while (Serial.available() == 0);
+  switch(Serial.read())
+  {
+    case 'H': doHigh(); break;
+    case 'L': doLow(); break;
+    case 'T': doToggle(); break;
+  }
+}
+
+void doHigh()
+{
+  PCF_01.write(4, HIGH);
+  int x = PCF_01.read8();
+  Serial.print("Read ");
+  Serial.println(x, HEX);
+}
+
+void doLow()
+{
+  PCF_01.write(4, LOW);
+  int x = PCF_01.read8();
+  Serial.print("Read ");
+  Serial.println(x, HEX);
+}
+
+void doToggle()
+{
+  PCF_01.toggle(4);
+  int x = PCF_01.read8();
+  Serial.print("Read ");
+  Serial.println(x, HEX);
+}
+
+
+
+

libraries/PCF8574/examples/PCF8574_test1/PCF8574_test1.ino

@@ -0,0 +1,70 @@
+//
+//    FILE: pcf8574_test.ino
+//  AUTHOR: Rob Tillaart
+//    DATE: 27-08-2013
+//
+// PUPROSE: demo 
+//
+
+#include "PCF8574.h"
+#include <Wire.h>
+
+// adjust addresses if needed
+PCF8574 PCF_38(0x38);  // add switches to lines  (used as input)
+PCF8574 PCF_39(0x39);  // add leds to lines      (used as output)
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println("\nTEST PCF8574\n");
+   
+  uint8_t value = PCF_38.read8();
+  Serial.print("#38:\t");
+  Serial.println(value);
+
+  for (int i=0; i<255; i++)
+  {
+    PCF_39.write8(i);
+    delay(100);
+  }
+  
+  PCF_39.write(0, 1);
+  for (int i=0; i<7; i++)
+  {
+    PCF_39.shiftLeft();
+    delay(100);
+  }
+  
+  for (int i=0; i<7; i++)
+  {
+    PCF_39.shiftRight();
+    delay(100);
+  }
+  
+  for (int i=0; i<8; i++)
+  {
+    PCF_39.write(i, 1);
+    delay(100);
+    PCF_39.write(i, 0);
+    delay(100);
+  }
+  
+  for (int i=0; i<8; i++)
+  {
+    PCF_39.toggle(i);
+    delay(100);
+    PCF_39.toggle(i);
+    delay(100);
+  }
+}
+
+void loop()
+{
+  // echos the lines
+  uint8_t value = PCF_38.read8();
+  PCF_39.write8(value);
+  delay(100);
+}
+//
+// END OF FILE
+//