#include <Arduino.h>
#include <esp32-hal-timer.h>

#define LED1 25  // 保持使用 GPIO25，但需確認硬體接線
#define LED_BUILTIN 2

volatile bool state0 = false;
volatile bool state1 = false;
volatile byte counter = 0;

hw_timer_t *timer0 = NULL;
hw_timer_t *timer1 = NULL;

// 中斷函式必須明確標示參數為 void
void IRAM_ATTR onTimer0(void) {
  state0 = !state0;
  digitalWrite(LED_BUILTIN, state0);
}

void IRAM_ATTR onTimer1(void) {
  state1 = !state1;
  digitalWrite(LED1, state1);
  counter++;
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(LED1, OUTPUT);
  Serial.begin(115200);

  
  timer0 = timerBegin(1);  // 1Hz
  timerAttachInterrupt(timer0, &onTimer0);
  timerStart(timer0);

  timer1 = timerBegin(2);  // 2Hz
  timerAttachInterrupt(timer1, &onTimer1);
  timerStart(timer1); 

  Serial.println("計時器初始化完成");
}

void loop() {
  static byte lastCounter = 0;
  if (counter != lastCounter) {
    Serial.print("Timer1 中斷次數: ");
    Serial.println(counter);
    lastCounter = counter;
  }
}