How do I use SPI with Arduino?

How do I use SPI with Arduino?

To use SPI with Arduino, you'll need to include the SPI library and set up the pins for MOSI, MISO, SCK, and SS.

What are the default pins for SPI on an Arduino Uno?

On the Arduino Uno, the default SPI pins are: MOSI (Pin 11), MISO (Pin 12), SCK (Pin 13), and SS (Pin 10).

Can you give me an example code for SPI communication?

Sure! Here's a simple example:

#include <SPI.h>

void setup() {
  SPI.begin();
  pinMode(10, OUTPUT); // SS pin
}

void loop() {
  digitalWrite(10, LOW); // Select the device
  SPI.transfer(0xFF); // Send data
  digitalWrite(10, HIGH); // Deselect the device
  delay(1000);
}

What devices can I connect using SPI?

You can connect various devices like sensors, displays, and SD cards using SPI. It's great for high-speed communication!