- Processing
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- Processing Foundation

This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Class | I2C
Name | ### write()
Examples |
    import processing.io.*;
    I2C dac;

    void setup() {
      //printArray(I2C.list());
      dac = new I2C(I2C.list()[0]);
    }

    void draw() {
      background(map(mouseX, 0, width, 0, 255));

      // send value over I2C to a digital-to-analog
      // converter with address 96 (hex 0x60)
      int val = int(4095 * map(mouseX, 0, width, 0.0, 1.0));
      dac.beginTransmission(0x60);
      dac.write(val >> 8);
      dac.write(val & 255);
      dac.endTransmission();
    }
Description | Add bytes to be written to the device You must call beginTransmission() before calling this function. The actual writing takes part when read() or endTransmission() is being called.
Syntax |
    .write(out)
Parameters |
out | byte[]: bytes to be written
out | String: string to be written
out | int: single byte to be written, e.g. numeric literal (0 to 255, or -128 to 127)
out | byte: single byte to be written
Returns | void

Updated on July 4, 2018 11:56:46am EDT