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Documentation→Libraries→Core→Hardware I/O→I2C

Name

close()

Class

I2C

Description

Closes the I2C device

It is normally not necessary to explicitly close I2C interfaces, as they are closed automatically by the operating system when the sketch exits.

Note: It is possible to have two or more object using the same interface at a time.

Examples

  • import processing.io.*;
I2C i2c;

void setup() {
  //printArray(I2C.list());
  i2c = new I2C(I2C.list()[0]);
  // send a value over I2C to a digital-to-analog
  // converter with address 96 (hex 0x60)
  int val = 4095;
  i2c.beginTransmission(0x60);
  i2c.write(val >> 8);
  i2c.write(val & 255);
  i2c.endTransmission();
  // and close interface again
  i2c.close();
}

Syntax

  • .close()

Return

  • void
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