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40 lines
585 B
Arduino
40 lines
585 B
Arduino
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//
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// FILE: PCF8574_isConnected.ino
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// AUTHOR: Rob Tillaart
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// DATE: 2021-01-03
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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_39(0x39);
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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_39.begin())
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{
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Serial.println("could not initialize...");
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}
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if (!PCF_39.isConnected())
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{
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Serial.println("=> not connected");
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}
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else
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{
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Serial.println("=> connected!!");
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}
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}
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void loop()
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{
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}
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// -- END OF FILE --
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