Download Spi.h Apr 2026

void setup() { Serial.begin(9600); // Initialize SPI and SD card SPI.begin(); if (!SD.begin(chipSelect)) { Serial.println("SD card initialization failed!"); return; } Serial.println("SD card initialized successfully."); }

#include <SPI.h> #include <SD.h>

const int chipSelect = 4; // SD card CS pin download spi.h