ButtonableAll.ino

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/**
 * @file ButtonableAll.ino Example on/off control from multiple buttons. Only
 * when all the button in the list are pressed will the built-in LED lights.
 * Each button is connected to a subsequent pin.
 * 
 * @copyright Copyright (c) 2022 John Scott
 */
#include <AbleButtons.h>
 
// Identify which buttons you are using...
using Button = AblePullupButton; ///< Using basic pull-up button.
using ButtonList = AblePullupButtonList; ///< Using basic pull-up button list.
 
#define BUTTON_A_PIN 2 ///< Connect button between this pin and ground.
#define BUTTON_B_PIN 3 ///< Connect button between this pin and ground.
 
Button btnA(BUTTON_A_PIN); ///< Primary button.
Button btnB(BUTTON_B_PIN); ///< Secondary button.
 
/// Array of buttons for ButtonList.
Button *btns[] = { 
  &btnA,
  &btnB
};
ButtonList btnList(btns); ///< List of button to control together.
 
/**
 * Setup the ButtonableAll example. Called once to initialise everything.
 */
void setup() {
  btnList.begin(); // ButtonList calls begin() for each button in the list.
  pinMode(LED_BUILTIN, OUTPUT);
}
 
/**
 * Control the ButtonableAll example. Called repeatedly in a loop.
 */
void loop() {
  btnList.handle(); // ButtonList calls handle() for each button in the list.
  
  if(btnList.allPressed()) { // ButtonList can check all buttons together.
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }
}