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Class

SPI

Name

close()
Examples
import processing.io.*;
SPI adc;

void setup() {
  //printArray(SPI.list());
  adc = new SPI(SPI.list()[0]);
  adc.settings(500000, SPI.MSBFIRST, SPI.MODE0);
  // read in a value over SPI from an analog-to-digital
  // converter
  // dummy write, actual values don't matter
  byte[] out = { 0, 0 };
  byte[] in = adc.transfer(out);
  // some input bit shifting according to the datasheet
  int val = ((in[0] & 0x1f) << 5) | ((in[1] & 0xf8) >> 3);
  // val is between 0 and 1023
  println(val);
  // and close interface again
  adc.close();
}
Description Closes the SPI interface

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

Note: It is possible to have two or more objects using the same interface at a time.
Syntax
.close()
Returnsvoid
Updated on January 21, 2019 10:05:14am EST

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