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Я использую клон Arduino UNO, Dccduino, и у меня проблема с памятью. Sketch использует 25,114 байт (77%) пространства для хранения программ. Максимум 32 256 байтов. Глобальные переменные используют 1,968 байт (96%) динамической памяти, оставляя 80 байтов для локальных переменных. Максимум составляет 2048 байт. Доступна низкая память, могут возникнуть проблемы со стабильностью. Есть ли способ уменьшить объем памяти около 20%, если я не думаю, что я должен купить Arduino MegaКак уменьшить использование памяти на Arduino Uno
Вот код:
#include <OneWire.h>
#include <DallasTemperature.h>
#include <SPI.h>
#include <SD.h>
#include <Wire.h>
#include "RTClib.h"
#include <GPRS_Shield_Arduino.h>
#include <SoftwareSerial.h>
// Data wire is plugged into port 3 and 2 on the Arduino
#define ONE_WIRE_BUS_1 3 // Many sensors on pin 3
#define ONE_WIRE_BUS_2 2 // Many sensors on pin 2
#define TEMPERATURE_PRECISION 9 // Lower resolution
#define PIN_TX 7
#define PIN_RX 8
#define BAUDRATE 9600
#define PHONE_NUMBER "xxxxxxxxxxxxx"
GPRS gprsTest(PIN_TX, PIN_RX, BAUDRATE); //RX,TX,PWR,BaudRate
// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire1(ONE_WIRE_BUS_1);
OneWire oneWire2(ONE_WIRE_BUS_2);
// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors1(&oneWire1);
DallasTemperature sensors2(&oneWire2);
int numberOfDevices1; // Number of temperature devices found on pin 3
int numberOfDevices2; // Number of temperature devices found on pin 2
DeviceAddress tempDeviceAddress1; // We'll use this variable to store a found device address for bus 3
DeviceAddress tempDeviceAddress2; // We'll use this variable to store a found device address for bus 2
File myFile;
RTC_DS3231 rtc; // Create a RealTimeClock object
void setup(void)
{
// start serial port
#ifndef ESP8266
while (!Serial); // for Leonardo/Micro/Zero
#endif
Serial.begin(9600);
delay(3000);
Serial.println(F("Dallas Temperature IC Control Library Demo"));
Serial.print(F("Initializing SD card..."));
if (!SD.begin(4)) {
Serial.println(F("\ninitialization failed!"));
return;
}
Serial.println(F("initialization done."));
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
while (1);
}
if (rtc.lostPower()) {
Serial.println("RTC lost power, lets set the time!");
// following line sets the RTC to the date & time this sketch was compiled
//rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
// This line sets the RTC with an explicit date & time, for example to set
// January 21, 2014 at 3am you would call:
// rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
}
/* while(!gprsTest.init()) { //gprs init
delay(1000);
Serial.print(F("init error\r\n"));
Serial.println(F("gprs init success"));*/ It takes 20% of dynamic memory so i cant use it
}
Serial.println(F("start to call ..."));// Call when device will start
gprsTest.callUp(PHONE_NUMBER);
Serial.println("start to send message ...");
gprsTest.sendSMS(PHONE_NUMBER, "Hi device is ON"); //define phone number and text
// Start up the library
sensors1.begin();
sensors2.begin();
// Grab a count of devices on the wire
numberOfDevices1 = sensors1.getDeviceCount();
numberOfDevices2 = sensors2.getDeviceCount();
// locate devices on the bus
Serial.print(F("Locating devices..."));
Serial.print(F("Found "));
Serial.print(numberOfDevices1, DEC);
Serial.print(F("+"));
Serial.print(numberOfDevices2, DEC);
Serial.println(F(" devices."));
// report parasite power requirements
Serial.print("Parasite power is: ");
if (sensors1.isParasitePowerMode()) Serial.println(F("Sensors 1 ON"));
else Serial.println(F("\nSensors 1 OFF"));
if (sensors2.isParasitePowerMode()) Serial.println(F("Sensors 2 ON"));
else Serial.println(F("Sensors 2 OFF"));
// Loop through each device, print out address for pin 3
for (int i = 0; i < numberOfDevices1; i++)
{
// Search the wire for address
if (sensors1.getAddress(tempDeviceAddress1, i))
{
Serial.print(F("Found device "));
Serial.print(i, DEC);
Serial.print(F(" with address: "));
printAddress(tempDeviceAddress1);
Serial.println();
Serial.println(F("\n"));
// set the resolution to TEMPERATURE_PRECISION bit (Each Dallas/Maxim device is capable of several different resolutions)
sensors1.setResolution(tempDeviceAddress1, TEMPERATURE_PRECISION);
} else {
Serial.print(F("Found ghost device for pin 3 at "));
Serial.print(i, DEC);
Serial.print(F(" but could not detect address. Check power and cabling"));
}
}
// Loop through each device, print out address for pin 2
for (int i = 0; i < numberOfDevices2; i++)
{
// Search the wire for address
if (sensors2.getAddress(tempDeviceAddress2, i))
{
Serial.print(F("Found device "));
Serial.print(i + numberOfDevices1, DEC);
Serial.print(F(" with address: "));
printAddress(tempDeviceAddress2);
Serial.println();
Serial.println(F("\n"));
// set the resolution to TEMPERATURE_PRECISION bit (Each Dallas/Maxim device is capable of several different resolutions)
sensors2.setResolution(tempDeviceAddress2, TEMPERATURE_PRECISION);
} else {
Serial.print(F("Found ghost device for pin 2 at "));
Serial.print(i, DEC);
Serial.print(F(" but could not detect address. Check power and cabling"));
}
}
}
void loop(void)
{
// call sensors1.requestTemperatures() to issue a global temperature
// request to all devices on the bus
Serial.print(F("Requesting temperatures to pin 3..."));
sensors1.requestTemperatures(); // Send the command to get temperatures for pin 3
Serial.println(F("DONE"));
myFile = SD.open("test1.txt", FILE_WRITE); //open file
// Loop through each device , print out temperature data for pin 3
for (int i = 0; i < numberOfDevices1; i++)
{
// Search the wire for address
if (sensors1.getAddress(tempDeviceAddress1, i))
{
// Output the device ID
Serial.print(F("Temperature for device: "));
Serial.println(i, DEC);
// It responds almost immediately. Let's print out the data
printTemperature1(tempDeviceAddress1);// Use a simple function to print out the data
Serial.print(F("\n"));
}
delay(4000);
//else ghost device! Check your power requirements and cabling
}// End forloop for pin 3
if (numberOfDevices2 != 0) {
Serial.print(F("Requesting temperatures to pin 2..."));
sensors2.requestTemperatures(); // Send the command to get temperatures for pin 2
Serial.println(F("DONE"));
}
// Loop through each device for pin 2, print out temperature data
for (int i = 0; i < numberOfDevices2; i++)
{
// Search the wire for address
if (sensors2.getAddress(tempDeviceAddress2, i))
{
// Output the device ID
Serial.print(F("Temperature for device: "));
Serial.println(i + numberOfDevices1, DEC);
// It responds almost immediately. Let's print out the data
printTemperature2(tempDeviceAddress2);// Use a simple function to print out the data
Serial.print(F("\n"));
}
else Serial.print(F("ghost device! Check your power requirements and cabling"));
delay(4000);
} //End forloop for pin 3
myFile.close(); // Should I close it?
}// End loop()
void printAddress(DeviceAddress deviceAddress) // function to print a device address
{
for (uint8_t i = 0; i < 8; i++)
{
if (deviceAddress[i] < 16) Serial.print(F("0"));
Serial.print(deviceAddress[i], HEX);
}
}
void printTemperature1(DeviceAddress deviceAddress1) // function to print the temperature for a device (pin 3)
{
float tempC = sensors1.getTempC(deviceAddress1);
Serial.print("Temp C: ");
Serial.print(tempC);
if (myFile)
{
Serial.println(F("\nWriting to test.txt..."));
myFile.print(F("C: "));
myFile.print(tempC);
print_time(); // Call print_time() function to print time on file
myFile.print(F("\n"));
Serial.print(F("Done!"));
}
else Serial.print(F("Error opening file 1"));
Serial.println("\n");
}
void printTemperature2(DeviceAddress deviceAddress2) // function to print the temperature for a device (pin 2)
{
float tempC = sensors2.getTempC(deviceAddress2);
Serial.print(F("Temp C: "));
Serial.print(tempC);
if (myFile)
{
Serial.print(F("\nWriting to test.txt..."));
myFile.print(F("C: "));
myFile.print(tempC);
print_time(); // Call print_time() function to print time on file
myFile.print(F("\n"));
Serial.print(F("Done!"));
} else Serial.print(F("Error opening file 2"));
Serial.println("\n");
}
void print_time() { // print time function
DateTime now = rtc.now();
Serial.print(now.year(), DEC);
Serial.print('/');
Serial.print(now.month(), DEC);
Serial.print('/');
Serial.print(now.day(), DEC);
Serial.print(now.hour(), DEC);
Serial.print(':');
Serial.print(now.minute(), DEC);
Serial.print(':');
Serial.print(now.second(), DEC);
Serial.println();
myFile.print(now.year(), DEC);
myFile.print('/');
myFile.print(now.month(), DEC);
myFile.print('/');
myFile.print(now.day(), DEC);
myFile.print(now.hour(), DEC);
myFile.print(':');
myFile.print(now.minute(), DEC);
myFile.print(':');
myFile.print(now.second(), DEC);
myFile.println();
}