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58 lines
1.0 KiB
C++
58 lines
1.0 KiB
C++
//
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// FILE: TCA9555_setPolarity.ino
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// AUTHOR: Rob Tillaart
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/// DATE: 2021-06-09
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// PUPROSE: test TCA9555 library
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#include "TCA9555.h"
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#include "Wire.h"
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TCA9555 TCA(0x27);
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void setup()
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{
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Serial.begin(115200);
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Serial.print("TCA9555_LIB_VERSION: ");
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Serial.println(TCA9555_LIB_VERSION);
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Wire.begin();
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TCA.begin();
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Serial.println("TEST digitalRead(pin)");
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for (int pin = 0; pin < 16; pin++)
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{
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int val = TCA.digitalRead(pin);
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Serial.print(val);
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Serial.print(' ');
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}
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Serial.println();
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Serial.println("\nchange polarity");
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Serial.println(TCA.getPolarity8(0));
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Serial.println(TCA.getPolarity8(1));
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TCA.setPolarity8(0, 0xFF); // all inverted
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TCA.setPolarity8(1, 0xFF); // all inverted
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Serial.println(TCA.getPolarity8(0));
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Serial.println(TCA.getPolarity8(1));
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Serial.println("\nafter setPolarity");
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for (int pin = 0; pin < 16; pin++)
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{
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int val = TCA.digitalRead(pin);
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Serial.print(val);
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Serial.print(' ');
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}
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Serial.println();
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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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