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標題: arduino 睡眠問題與SoftwareSerial.h的衝突 [打印本頁]

作者: lucy522285 時間: 2020-11-6 14:26
標題: arduino 睡眠問題與SoftwareSerial.h的衝突
大家好
目前使用UART 與sensor arduino 通訊我想要使用watchdog 方式讓arduino 進入睡眠模式
但因為使用到#include <SoftwareSerial.h>而導致arduino 無法進入睡眠想請問要如何更改
才能讓arduion 進入睡眠15分鐘並且醒來

#include <SPI.h>
#include <SD.h>
#include <Wire.h>
#include "RTClib.h"
#include "Oxygen.h"
#include <avr/sleep.h>

volatile int sleep_count = 0; // Keep track of how many sleep
const int sleep_total = 103; // ~ 15 min

#include <SoftwareSerial.h>

SoftwareSerial mySerial(8, 9); // RX, TX pins on Ardunio
#define SampleNum 20

int co2 =0;
double multiplier = 10;// 1 for 2% =20000 PPM, 10 for 20% = 200,000 PPM
uint8_t buffer[25];
uint8_t ind =0;
uint8_t index =0;

int fill_buffer();  // function prototypes here
String format_output();

RTC_DS3231 rtc;
const int chipSelect = 4;
int checkstate = 0;
//analogReference(INTERNAL2v56);

void setup(void) {
Serial.begin(9600);
//rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
deviceINIT();

watchdogOn(); // Turn on the watch dog timer.

mySerial.begin(9600); // Start serial communications with sensor
mySerial.println("M 6"); // send Mode for Z and z outputs
mySerial.println("K 1");  // set streaming mode

}

void loop(void) {

if (sleep_count % sleep_total == 0) {

// CODE TO BE EXECUTED PERIODICALLY
  Serial.println("wake!");

  String dataString = "";

  // read RTC
  DateTime now = rtc.now();
  dataString = String(now.year()) + "/" + String(now.month()) + "/" + String(now.day()) + " " + String(now.hour()) + ":" + String(now.minute()) + ":" + String(now.second()) + " ";
  // read O2
  float O2 = 0;
  O2 = O2_value();
  dataString += "O2 ";
  dataString += String(O2);
  dataString += " ";
  delay(500);

  // read CO2
  fill_buffer();
  index = 8;  // In ASCII buffer, filtered value is offset from raw by 8 bytes
  String CO2=format_output();

  dataString += "CO2 ";
  dataString += String(CO2);
dataString += " ";
  delay(500);

  // write SD
  File dataFile = SD.open("Dlog.txt", FILE_WRITE);
  if (dataFile) {
dataFile.println(dataString);
dataFile.close();
Serial.println(dataString);
  }
  else {
Serial.println("error opening Dlog.txt");
  }

  Serial.println("go to sleep");
  // delay to print out serial
  delay(2900);

  // reset count
  sleep_count = 0;
}

goToSleep();
}

void goToSleep()
{
set_sleep_mode(SLEEP_MODE_PWR_DOWN); // Set sleep mode.
sleep_enable(); // Enable sleep mode.
sleep_mode(); // Enter sleep mode.
sleep_disable(); // Disable sleep mode after waking.
}

void watchdogOn() {
MCUSR = MCUSR & B11110111;
WDTCSR = WDTCSR | B00011000;
WDTCSR = B00100001;
WDTCSR = WDTCSR | B01000000;
MCUSR = MCUSR & B11110111;
}

ISR(WDT_vect)
{
sleep_count ++; // keep track of how many sleep cycles
}

void deviceINIT(){
  // SD module init
  Serial.print("Initializing SD card...");
  if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
return;
  }
  Serial.println("card initialized.");

  //RTC init
  delay(3000); // wait for console opening
  if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
while (1);
  }
  if (rtc.lostPower()) {
Serial.println("RTC lost power!");
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  O2_value();
  }

void StartTimeCorrect(){
DateTime now = rtc.now();
int c_time = (60-now.minute())%15;
complement_delay(c_time);
Serial.println("end wait");
delay(100);
  }

void delay1min(){
  delay(30000);
  delay(30000);
  }

void complement_delay(int c){
  for (int i=0;i<c;i++){
delay1min();
}
  }

int fill_buffer(void){


// Fill buffer with sensor ascii data
ind = 0;
while(buffer[ind-1] != 0x0A){  // Read sensor and fill buffer up to 0XA = CR
  if(mySerial.available()){
buffer[ind] = mySerial.read();
ind++;
}
  }
  // buffer() now filled with sensor ascii data
  // ind contains the number of characters loaded into buffer up to 0xA =  CR
  ind = ind -2; // decrement buffer to exactly match last numerical character
  }

String format_output(){ // read buffer, extract 6 ASCII chars, convert to PPM and print
  int co2 =0;
  int index=8; double multiplier = 10;
  co2 = buffer[15-index]-0x30;
  co2 = co2+((buffer[14-index]-0x30)*10);
  co2 +=(buffer[13-index]-0x30)*100;
  co2 +=(buffer[12-index]-0x30)*1000;
  co2 +=(buffer[11-index]-0x30)*10000;

  return String(co2*multiplier/10000,4);

}

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