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https://github.com/RobTillaart/Arduino.git
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75 lines
1.1 KiB
C++
75 lines
1.1 KiB
C++
//
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// FILE: PCF8574_Wire2.ino
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// AUTHOR: Rob Tillaart
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// DATE: 2016-04-30
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//
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// PUPROSE: demo
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//
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#include "PCF8574.h"
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// adjust addresses if needed
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PCF8574 PCF(0x39, &Wire2);
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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Serial.print("PCF8574_LIB_VERSION:\t");
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Serial.println(PCF8574_LIB_VERSION);
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if (!PCF.begin())
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{
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Serial.println("could not initialize...");
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}
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if (!PCF.isConnected())
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{
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Serial.println("=> not connected");
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while(1);
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}
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int x = PCF.read8();
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Serial.print("Read ");
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Serial.println(x, HEX);
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delay(1000);
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}
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void loop()
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{
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Serial.println("HLT");
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while (Serial.available() == 0);
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switch (Serial.read())
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{
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case 'H': doHigh(); break;
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case 'L': doLow(); break;
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case 'T': doToggle(); break;
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}
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}
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void doHigh()
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{
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PCF.write(4, HIGH);
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int x = PCF.read8();
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Serial.print("Read ");
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Serial.println(x, HEX);
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}
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void doLow()
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{
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PCF.write(4, LOW);
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int x = PCF.read8();
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Serial.print("Read ");
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Serial.println(x, HEX);
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}
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void doToggle()
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{
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PCF.toggle(4);
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int x = PCF.read8();
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Serial.print("Read ");
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Serial.println(x, HEX);
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}
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// -- END OF FILE --
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