31 lines
477 B
Arduino
31 lines
477 B
Arduino
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/*
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Blink led on PIN0
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by Mischianti Renzo <http://www.mischianti.org>
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https://www.mischianti.org/2019/01/02/pcf8575-i2c-digital-i-o-expander-fast-easy-usage/
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*/
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#include "Arduino.h"
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#include "PCF8575.h"
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// Set i2c address
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PCF8575 pcf8575(0x20);
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void setup()
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{
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Serial.begin(115200);
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// Set pinMode to OUTPUT
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pcf8575.pinMode(P0, OUTPUT);
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pcf8575.begin();
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}
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void loop()
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{
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pcf8575.digitalWrite(P0, HIGH);
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delay(1000);
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pcf8575.digitalWrite(P0, LOW);
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delay(1000);
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}
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