28 lines
544 B
C++
28 lines
544 B
C++
#include <Wire.h>
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#define SLAVE_ADDRESS 0x20
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void setup()
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{
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Wire.setClock(1000000);
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Serial.begin(9600);
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Wire.begin();
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}
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void loop()
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{
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Wire.beginTransmission(SLAVE_ADDRESS);
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Wire.write(0x09);
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byte busStatus = Wire.endTransmission();
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if(busStatus !=0)
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{
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Serial.println("I2C Bus error!");
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while(true);
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}
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Serial.println("Data Transmission is ok!");
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//--------------------------------------
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Wire.requestFrom(SLAVE_ADDRESS, 1);
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byte m = Wire.read();
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Serial.println(m, HEX); //should show: 7
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delay(1000);
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}
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