mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
77 lines
1.2 KiB
C++
77 lines
1.2 KiB
C++
//
|
|
// FILE: PCF8574_test.ino
|
|
// AUTHOR: Rob Tillaart
|
|
// DATE: 27-08-2013
|
|
// PUPROSE: demo
|
|
|
|
|
|
#include "PCF8574.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(__FILE__);
|
|
Serial.print("PCF8574_LIB_VERSION:\t");
|
|
Serial.println(PCF8574_LIB_VERSION);
|
|
|
|
PCF_38.begin();
|
|
PCF_39.begin();
|
|
|
|
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()
|
|
{
|
|
// echo the state of the lines on the other PCF
|
|
uint8_t value = PCF_38.read8();
|
|
PCF_39.write8(value);
|
|
delay(100);
|
|
}
|
|
|
|
|
|
// END OF FILE
|
|
|