Upload files to "spi_send"

spi_send/spi_send.ino

@@ -0,0 +1,30 @@
+#include <SPI.h>
+
+#define CS_PIN 10  // Chip Select pin (must match the slave setup)
+
+uint8_t dataToSend[256];
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("SPI Master Starting...");
+
+  pinMode(CS_PIN, OUTPUT);
+  digitalWrite(CS_PIN, HIGH);
+
+  SPI.begin();
+}
+
+void loop() {
+
+  for (int i = 0; i < 256; i++) {
+    dataToSend[i] = i;
+  }
+
+  Serial.println("Sending data...");
+  digitalWrite(CS_PIN, LOW);
+  SPI.transfer(dataToSend, 256);  // Send the whole array at once
+  digitalWrite(CS_PIN, HIGH);
+  Serial.println("Data sent.");
+
+  delay(1); // Wait before sending again
+}