I bought a new Arduino MKR Zero which is generally promoted for playing sound from SD Card (SD card slot built-in on the board) but since the Microcontroller is SAMD21, I believe it supports keyboard emulation.
I am trying to simulate opening a file code.txt from SD card with the following code:
CTRL ESC
delay(100)
STRING r
delay(100)
STRING notepad
ENTER
and on the Arduino MKR Zero, I flashed the following code:
#include <Keyboard.h>
File codeFile;
File logFile;
void setup() {
Serial.begin(9600);
delay(2000); // Allow time for the serial monitor to open
// Initialize the SD card
if (!SD.begin()) { // Change the pin number according to your setup
Serial.println("SD initialization failed!");
return;
}
else {
Serial.println("SD Initialized success!");
}
// Open the code file
codeFile = SD.open("code.txt");
if (!codeFile) {
Serial.println("Failed to open code.txt");
return;
}
else{
Serial.println("code.txt found in SD Card.");
}
// Open the log file
logFile = SD.open("log.txt", FILE_WRITE); // Open for writing (create if it doesn't exist)
if (!logFile) {
Serial.println("Failed to open log.txt");
return;
}
else {
Serial.println("log.txt opened in SD card.");
}
// Wait for the computer to recognize the USB connection
delay(5000);
// Execute the code from the file
while (codeFile.available()) {
char c = codeFile.read();
Keyboard.write(c); // Send each character from the file as a keystroke
logFile.write(c); // Write the character to the log file
Serial.print(c); //print the character in Serial Monitor
delay(20); // Adjust this delay as needed
}
// Close the files
codeFile.close();
logFile.close();
Serial.println("\n\nEnd of code.");
}
void loop() {
// Nothing to do here
}
The code uploads successfully on the board. Now, when I reset the board, I am getting the following output in the Serial Monitor.
SD Initialized success!
code.txt found in SD Card.
log.txt opened in SD card.
CTRL ESC
delay(100)
STRING r
delay(100)
STRING notepad
ENTER
End of code.
But the this code is not doing anything on the Desktop. What am I doing incorrect here?