//#include "CONFIG.h"
// https://forum.arduino.cc/t/about-tetris-game-speed/1062433
// https://wokwi.com/projects/350447114709369427

# define buttonA  7
unsigned char TetrisSETBJ;

void setup() {
  Serial.begin(115200);
  Serial.println("setup.");
  pinMode(buttonA, INPUT_PULLUP);
  digitalWrite(buttonA, HIGH);
}

void loop() {

  if (digitalRead (buttonA) == 0)
  {
    TetrisSETBJ = 1;
    Serial.print("buttonA = ");
    Serial.println(digitalRead(buttonA));
  }

  if (TetrisSETBJ == 1) {
    Tetris_setup();
  }

  TetrisSETBJ = 0;
}

void Tetris_setup()
{
  static int counta;

  Serial.print("Tetris setup.     ");
  Serial.println(counta);

  counta++;
}