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43 lines
620 B
C++
43 lines
620 B
C++
//
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// FILE: MCP23017_test.ino
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// AUTHOR: Rob Tillaart
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// DATE: 2019-10-14
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//
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// PUPROSE: test MCP23017 library
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//
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#include "MCP23017.h"
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#include <Wire.h>
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MCP23017 MCP(0x38);
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void setup()
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{
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Serial.begin(230400);
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Serial.print("MCP23017_test version: ");
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Serial.println(MCP23017_LIB_VERSION);
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Wire.begin();
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MCP.begin();
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MCP.pinMode8(0, 0x00); // CHECK
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MCP.pinMode8(1, 0x00);
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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 = MCP.digitalRead(pin);
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Serial.print(val);
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Serial.print('\t');
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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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