Hello everyone,
I am a newbie to arduino board and programming but I enjoyed working on the centepede project shown here:
I used the Pro Micro board to automate keystrokes on chromebooks to autoamatically provision them.
After a while, I found ways to change the keystrokes so I can log into an account and check for updates; then powerwash after 15 minutes.
Now I want to try have the arduino board invoke the boot order key on startup on a dell desktop and then choose a different option. However, when I try to plug it in, nothing happens. I was wondering if I am missing something or should change something.
Here is the test code I have. I know its redundant but I did it purposely to see if something would happen when the computer is starting up on POST/BIOS boot. Also, there are certain function to which I am not fully sure what they refer to such as, "buttonPin", "RXLED", "cycles", "static uint8_t __clock_prescaler":
Any advice or suggestions would be greatly appriciated
#include <Keyboard.h>
#define slowMode 1 // Set to 1 if Centipede appears to be moving too quickly at any screen. This will slow down the entire process
// Special characters definition
#define KEY_LEFT_CTRL 0x80
#define KEY_LEFT_SHIFT 0x81
#define KEY_LEFT_ALT 0x82
#define KEY_RIGHT_CTRL 0x84
#define KEY_RIGHT_SHIFT 0x85
#define KEY_RIGHT_ALT 0x86
#define KEY_UP_ARROW 0xDA
#define KEY_DOWN_ARROW 0xD9
#define KEY_LEFT_ARROW 0xD8
#define KEY_RIGHT_ARROW 0xD7
#define KEY_BACKSPACE 0xB2
#define KEY_TAB 0xB3
#define KEY_ENTER 0xB0
#define KEY_ESC 0xB1
#define KEY_CAPS_LOCK 0xC1
#define KEY_F3 0xC4
#define KEY_F4 0xC5
#define KEY_F5 0xC6
#define KEY_F6 0xC7
#define KEY_F7 0xC8
#define KEY_F8 0xC9
#define KEY_F9 0xCA
#define KEY_F10 0xCB
#define KEY_F11 0xCC
#define KEY_F12 0xCD
int buttonPin = 2; // Set a button to any pin
int RXLED = 17;
static uint8_t __clock_prescaler = (CLKPR & (_BV(CLKPS0) | _BV(CLKPS1) | _BV(CLKPS2) | _BV(CLKPS3)));
void wait(int cycles = 1);
void bypassJumper() {
wait(2);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
wait(8);
}
void bootScreen() {
wait(2);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
wait(8);
}
void biosFolder() {
wait(2);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
Keyboard.write(KEY_UP_ARROW);
wait(8);
}
void updateBios() {
wait(2);
Keyboard.write(KEY_F12);
Keyboard.write(KEY_F12);
Keyboard.write(KEY_F12);
Keyboard.write(KEY_F12);
Keyboard.write(KEY_F12);
wait(8);
}
void bootLoop() {
// digitalWrite(RXLED, LOW); // set the LED on
TXLED0; //TX LED is not tied to a normally controlled pin
delay(200); // wait for a second
TXLED1;
delay(200);
TXLED0; //TX LED is not tied to a normally controlled pin
delay(200); // wait for a second
TXLED1;
delay(800);
}
void showSuccess() {
digitalWrite(RXLED, HIGH); // set the LED off
while (true) {
bootLoop();
}
}
void repeatKey(byte key, int num) {
for (int i = 0; i < num; i++) {
Keyboard.write(key);
wait(1);
}
}
void blink() {
digitalWrite(RXLED, LOW);
// TXLED1;
delay(250);
digitalWrite(RXLED, HIGH);
// TXLED0;
delay(250);
}
void wait(int cycles) {
for (int i = 0; i < cycles; i++) {
blink();
if (slowMode) {
delay(250);
}
}
}
void setPrescaler() {
// Disable interrupts.
uint8_t oldSREG = SREG;
cli();
// Enable change.
CLKPR = _BV(CLKPCE); // write the CLKPCE bit to one and all the other to zero
// Change clock division.
CLKPR = 0x0; // write the CLKPS0..3 bits while writing the CLKPE bit to zero
// Copy for fast access.
__clock_prescaler = 0x0;
// Recopy interrupt register.
SREG = oldSREG;
}
void setup()
{
setPrescaler(); // Set prescaler to highest clock speed
Keyboard.begin(); // Start they keyboard emulator
pinMode(buttonPin, INPUT); // Set up the debugging pin. If you want to debug the code, use a length of wire to connect pins 2 and GND on the board
digitalWrite(buttonPin, HIGH);
pinMode(RXLED, OUTPUT); // Configure the on-board LED
digitalWrite(RXLED, LOW);
TXLED1;
if (digitalRead(buttonPin) == 0) {
showSuccess();
}
wait(5); // Wait for all services to finish loading
}
void loop() {
if (digitalRead(buttonPin) == 1 ) { // Check for debugging. If not debugging, run the program
bypassJumper(); // Bypass the jumper error
bootScreen(); // Choose USB for boot
biosFolder(); // select the right folder bios flash
updateBios(); // accept Bios
}
showSuccess();
}
