'THREEWIRE_READFLAG' was not declared in this scope

[kreeeves]

Hi! I'm using DS1302 RTC with 5 pins namely (VCC, GND, CLK, DAT, RST) and currently working on my school project specifically a password lock system. I tried to use the library but get the error message 'THREEWIRE_READFLAG' was not declared in this scope.

I am using arduino R3 and for the display I am using 0.91″ inch I2C OLED Display

Is there a way to fix this? I also tried to run the examples but get some random outputs on the serial monitor.

Here is my code:

#include <RtcDateTime.h>
#include <RtcDS1302.h>
#include <RtcDS1307.h>
#include <RtcDS3231.h>
#include <RtcDS3234.h>
#include <RtcTemperature.h>
#include <RtcUtility.h>
#include <ThreeWire.h>

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Fonts/FreeSerifBold9pt7b.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32

// Create LCD object : Use 0x27 If 0x3F Doesn't work
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

ThreeWire myWire(11, 10, 12); // DAT, CLK, RST
RtcDS1302 Rtc(myWire); // RTC Object

void setup() {
Serial.begin(9600);

display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS);
display.clearDisplay();
display.display();
delay(2000);

Rtc.Begin();

RtcDateTime currentTime = RtcDateTime(DATE , TIME);
Rtc.SetDateTime(currentTime);

}

void loop() {
RtcDateTime now = Rtc.GetDateTime();

display.clearDisplay();
display.setCursor(0, 0);
display.setFont();
display.setTextColor(SSD1306_WHITE);
display.print(F("DATE: "));
display.print(now.Day());
display.print("|");
display.print(now.Month());
display.print("|");
display.print(now.Year());
display.print("|");

display.println(F(""));

display.print(F("TIME: "));
display.print(now.Hour());
display.print(":");
display.print(now.Minute());
display.print(":");
display.print(now.Second());
display.print(":");

display.display();

}

and here is the full error message:

In file included from C:\Users\DELL\Documents\Arduino\Password_Lock\Password_Lock.ino:3:0:

C:\Users\DELL\Documents\Arduino\libraries\Rtc_by_Makuna\src/RtcDS1302.h: In member function 'RtcDateTime RtcDS1302<T_WIRE_METHOD>::GetDateTime()':

RtcDS1302.h:173:61: error: 'THREEWIRE_READFLAG' was not declared in this scope

         _wire.beginTransmission(DS1302_REG_TIMEDATE_BURST | THREEWIRE_READFLAG);

                                                             ^~~~~~~~~~~~~~~~~~

C:\Users\DELL\Documents\Arduino\libraries\Rtc_by_Makuna\src/RtcDS1302.h: In member function 'uint8_t RtcDS1302<T_WIRE_METHOD>::GetMemory(uint8_t*, uint8_t)':

RtcDS1302.h:238:56: error: 'THREEWIRE_READFLAG' was not declared in this scope

         _wire.beginTransmission(DS1302_REG_RAM_BURST | THREEWIRE_READFLAG);

                                                        ^~~~~~~~~~~~~~~~~~

C:\Users\DELL\Documents\Arduino\libraries\Rtc_by_Makuna\src/RtcDS1302.h: In member function 'uint8_t RtcDS1302<T_WIRE_METHOD>::getReg(uint8_t)':

RtcDS1302.h:258:46: error: 'THREEWIRE_READFLAG' was not declared in this scope

         _wire.beginTransmission(regAddress | THREEWIRE_READFLAG);

                                              ^~~~~~~~~~~~~~~~~~

exit status 1

'THREEWIRE_READFLAG' was not declared in this scope



This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

[Makuna]

Compare what you have with the DS1302_Simple.ino example. Two key things

• Move the include #include <ThreeWire.h> before any RTC headers.
• The declaration of the Rtc object is RtcDS1302<ThreeWire> Rtc(myWire);

BTW, including source code in GitHub issues and discussions should be wrapped with the code formatting. Inline is a single left quote at the front and back of the code. Large block is three single left quotes on their own lines at the front and back of the code. Or use the button in the upper right of the "write"/edit panel when entering you text/code.

[kreeeves]

Thank you very much, it solves my problem. I apologize for my ignorance I am new to GitHub and I will keep in mind the code formatting. Thank you.