Build using M5Atom with the following library. https://github.com/T-vK/ESP32-BLE-Keyboard

dependency.md

• https://github.com/T-vK/ESP32-BLE-Keyboard
• http://fastled.io/
• m5stack library
• m5atom

escape.ino

#include <M5Atom.h>
#include <BleKeyboard.h>
#include <FastLED.h>

#define NUM_LEDS 25
#define DATA_PIN 27
CRGB leds[NUM_LEDS];
BleKeyboard bleKeyboard("EscapeVIM");

int redButton[NUM_LEDS] = {
  0,1,1,1,0,
  1,1,1,1,1,
  1,1,1,1,1,
  1,1,1,1,1,
  0,1,1,1,0,
};

void setPixels(int pixels[]){
  for(int i=0;i<NUM_LEDS;i++){
    if(pixels[i] == 1)
      leds[i] = CRGB::Red;
    if(pixels[i] == 0)
       leds[i] = CRGB::Black;
  }
  FastLED.show();
}

void setup() {
  M5.begin(true,false,true);
  Serial.begin(115200);
  Serial.println("Initializing");
  bleKeyboard.begin();
  FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(20);
}

void loop() {
  setPixels(redButton);
  M5.Btn.read();
  if(bleKeyboard.isConnected()) {
    if(M5.Btn.isPressed()){
      Serial.println("Exiting vim");
      bleKeyboard.write(KEY_ESC);
      delay(1000); 
      bleKeyboard.print(":wq");
      delay(1000);
      bleKeyboard.write(KEY_RETURN);
      delay(1000);
    }
  }
  delay(10);
}