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ErriezDS3231Temperature.ino
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ErriezDS3231Temperature.ino
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/*
* MIT License
*
* Copyright (c) 2020 Erriez
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*!
* \brief DS3231 high accurate RTC temperature example for Arduino
* \details
* Source: https://github.com/Erriez/ErriezDS3231
* Documentation: https://erriez.github.io/ErriezDS3231
*/
#include <Wire.h>
#include <ErriezDS3231.h>
// Create DS3231 RTC object
ErriezDS3231 ds3231;
void setup()
{
// Initialize serial port
delay(500);
Serial.begin(115200);
while (!Serial) {
;
}
Serial.println(F("\nErriez DS3231 RTC temperature example\n"));
// Initialize TWI
Wire.begin();
Wire.setClock(400000);
// Initialize RTC
while (!ds3231.begin()) {
Serial.println(F("RTC not found"));
delay(3000);
}
}
void loop()
{
int8_t temperature = 0;
uint8_t fraction = 0;
// Force temperature conversion
// Without this call, it takes 64 seconds before the temperature is updated.
if (!ds3231.startTemperatureConversion()) {
Serial.println(F("Start conv failed"));
return;
}
// Read temperature
if (!ds3231.getTemperature(&temperature, &fraction)) {
Serial.println(F("Temp read failed"));
return;
}
// Print temperature
Serial.print(temperature);
Serial.print(F("."));
Serial.print(fraction);
Serial.println(F("C"));
// Wait some time
delay(5000);
}