AI Keyboard (Kiro version)

You will need a RP2024 chip and 3 keys. 

Be aware of the colors. Need Red for cross

Need to solder keys and rp2040 together and program the chip. Code can be generated by AI.

Or if you want to use mine:
 

#include <Keyboard.h>
#include <Adafruit_NeoPixel.h>

// ===== RGB =====
#define RGB_POWER 11
#define RGB_PIN   12
Adafruit_NeoPixel pixels(1, RGB_PIN, NEO_GRB + NEO_KHZ800);

// ===== Physical buttons =====
// Left button triggers purple now
#define KEY_LEFT    4

// Middle button triggers blue now
#define KEY_MIDDLE  2

// Right button triggers red now
#define KEY_RIGHT   1

bool lastLeft = HIGH;
bool lastMiddle = HIGH;
bool lastRight = HIGH;

void setColor(uint8_t r, uint8_t g, uint8_t b) {
 pixels.setPixelColor(0, pixels.Color(r, g, b));
 pixels.show();
}

void flash(uint8_t r, uint8_t g, uint8_t b) {
 setColor(r, g, b);
 delay(80);
 setColor(0, 0, 30);
}

void sendCtrlC() {
 Keyboard.press(KEY_LEFT_CTRL);
 Keyboard.press('c');
 delay(50);
 Keyboard.releaseAll();
}

void sendCmdEnter() {
 Keyboard.press(KEY_LEFT_GUI);
 Keyboard.press(KEY_RETURN);
 delay(60);
 Keyboard.releaseAll();
}

void sendCmdShiftEnter() {
 Keyboard.press(KEY_LEFT_GUI);
 Keyboard.press(KEY_LEFT_SHIFT);
 Keyboard.press(KEY_RETURN);
 delay(70);
 Keyboard.releaseAll();
}

void setup() {
 pinMode(KEY_LEFT, INPUT_PULLUP);
 pinMode(KEY_MIDDLE, INPUT_PULLUP);
 pinMode(KEY_RIGHT, INPUT_PULLUP);

 pinMode(RGB_POWER, OUTPUT);
 digitalWrite(RGB_POWER, HIGH);

 pixels.begin();
 setColor(0, 0, 30);

 delay(5000);
 Keyboard.begin();

 setColor(0, 30, 0);
}

void loop() {
 bool sLeft = digitalRead(KEY_LEFT);
 bool sMiddle = digitalRead(KEY_MIDDLE);
 bool sRight = digitalRead(KEY_RIGHT);

 delay(10);

 // Left button = Trust = Cmd + Shift + Enter
 if (lastLeft == HIGH && sLeft == LOW) {
   sendCmdShiftEnter();
   flash(255, 0, 255); // purple
 }

 // Middle button = Cmd + Enter
 if (lastMiddle == HIGH && sMiddle == LOW) {
   sendCmdEnter();
   flash(0, 0, 255); // blue
 }

 // Right button = Reject = Ctrl + C
 if (lastRight == HIGH && sRight == LOW) {
   sendCtrlC();
   flash(255, 0, 0); // red
 }

 lastLeft = sLeft;
 lastMiddle = sMiddle;
 lastRight = sRight;
}