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Thank you for watching. Maybe the DS3231 library you are using is version 1.0.6 or 1.0.7. So use the IDE's Library Manager to select DS3231 version 1.0.5. Maybe that will eliminate the error. If you want to use the latest version of the DS3231 library, feel free to rewrite the code.　😉

@@faowff034faerf3490ur I selected DS3231 version 1.0.5 and the error is :'D3231 clock' redeclared as different kind of symbol

I found a good library .I like how it works, it's a shame it doesn't have an alarm

Sorry for the late reply. 1) No problem. Please feel free to modify it. I think you can do it just by rewriting the values of x and y. 2)I'm not thinking about installing an alarm clock for the time being. please add it yourself. PS. It is directly connected because it is built into the buzzer module. Recently, my interest has changed to solo camp. Therefore, I haven't posted on CZcams about Arduino recently. .. ..

Yes i have I bought an ESP8266 about 2 years ago. I think it's great that can use the NTP service via WiFi. But I haven't tried it yet. This is due to my lack of knowledge and experience with ESP8266.

@@faowff034faerf3490ur I've tried it, but there are some compilation errors. As an example the DS3231 clock 'redeclared as different kind of symbol error. #include <DS3231.h> DS3231 clock; RTClib rtc; Typing Clock with a capital letter resolves this problem. Clock.getYear () Clock.getMonth (Century); Clock.getDate (); Clock.getHour (h12, PM); Clock.getMinute (); Clock.getSecond (); as . However, problems persist. The biggest problem is in the interupt part. Error "TCCR1A 'was not declared in this scope" void piezo_alarm (void) ( TCCR1A = 0b00100001; //*****************error***************** TCCR1B = 0b00010010; //*****************error***************** OCR1A = (uint16_t) (1000000 / frequency); OCR1B = (uint16_t) (1000000 / frequency * duty); } PIND 'was not declared in this scope ************************************************ void isr_0 (void) ( REGS1 = PIND & 0b00001100; // *****************error ******** if ((REGS1 == 0b00001100) && CLK_PIN) ( RotaryCounter--; ReleaseCounter = 0; Rotation = ON; CLK_PIN = DT_PIN = LOW; sei (); } else if (REGS1 == _BV (2)) DT_PIN = HIGH; } void isr_1 (void) ( REGS2 = PIND & 0b00001100; if ((REGS2 == 0b00001100) && DT_PIN) ( RotaryCounter ++; ReleaseCounter = 0; Rotation = ON; CLK_PIN = DT_PIN = LOW; sei (); } else if (REGS2 == _BV (3)) CLK_PIN = HIGH; } ESP8266 is very easy to use, this link will help you. randomnerdtutorials.com/projects-esp8266/ First of all, start by uploading the board to the Arduino. randomnerdtutorials.com/how-to-install-esp8266-board-arduino-ide/

@@puzzle74 TCCR1A and TCCR1B are reserved words prepared to access the register for hardware interrupt processing. PIND is also a reserved word for directly manipulating port D on Arduino. If you are using an IDE for Arduino and still get a compile error, there is a problem with IDE or library settings. If the AVR chip set is different, please rewrite the code as your wish. Thank you for giving me a pair of useful URLs.

I finally managed to run the codes with ESP8266. If you send me your e-mail address, I can send you compiled files for the Esp8266.

​@@puzzle74 Congratulations. I'm glad it went well. I think your code will be useful to someone who is more interested in ESP8266 than I am. I recommend you to share it on your blog, GitHub, etc. for everyone. If you difficult to do that, please give me a brief overview of what caused the symbol error and how you resolved it.

Thanks for your advice. I will consider adding it in my spare time.

Thank you for your encouraging comments. My programming style is based on an analysis of Konami games such as Nemesis (Gradius) and Twinbee. They were an elegant program to run on older PCs called MSX. I hope some of my code helps your programming.

@@faowff034faerf3490ur Would you mind if I ask you about your code?

@@AnthraxThy01 Yes, as long as I can answer you with my weak explanation.

​@@AnthraxThy01 My bad. I mean Sure, not Yes. I gave you the wrong answer.

@@faowff034faerf3490ur When I try to comply your code to my arduino nano every, in the 2_encoder, isr_0 you got a "REGS1 = PIND & 0b00001100;" it said that PIND is not def... I think I had lot more to learn from you, would you mind we discuss in email?

Sorry for my late reply. And thank you for watching. Regarding the SSD1306,I already have this one. www.amazon.co.jp/gp/product/B07D9H83R4/ And now I'm going to order this one. www.amazon.co.jp/dp/B08CTZVVLS/ Which one is your recommendation?

Hola Eduardo, me puedes explicar cómo resolviste el problema, ya instalé la versión DS3231 1.0.5 pero persiste la alarma. Gracias por el feedback

@@teamcam1896 hola, como estas. Básicamente instale la versión que está en el enlace de la respuesta de abajo...

Hola, pudiste resolver el problema?

Hola Sr.Eduardo. Cuénteme un poco más concretamente sobre la versión de la librería DS3231.h que está utilizando, los comandos que no funcionaron, etc.

@@faowff034faerf3490ur Muchas gracias por responderme tan rapido! La libreria que uso es la "Arduino-DS3231-master", cuando voy a compilar sale un error "'RTClib' does not name a type ". Muchas gracias de nuevo por la ayuda. Me quede sorprendido de lo bien que hace sus codigos.

​@@eduardoalvarez8540 Estoy usando la libreria DS3231 de "Northern Widget LLC". Para evitar errores de compilación sin volver a escribir el código fuente, debe descargar github.com/NorthernWidget/DS3231 e importarlo al IDE. ¿Esto resolverá el problema? I wish you the best. te deseo lo mejor.

@@faowff034faerf3490ur Muchas gracias! resolvio el problema! Pero ahora tengo otro problema. :-(. "'int LiquidCrystal_I2C::init()' is private within this context " Muchas gracias de nuevo!!

Use la libreria github.com/johnrickman/LiquidCrystal_I2C pero no resuelve el problema..

It works fine with the battery on the RTC module side.

Thanks for your watching. 💞

thank you so much. I intend to order OLED 1306 from Amazon as soon as possible.

iam waiting for ur great next project

どうもはじめまして。こちらこそ orgtkj2112 さんのお役に立ててすごく嬉しいです。 情報とは言ってもじっさいは in-my-mind.hatenablog.jp/entry/linux-mint-in-amd-ryzen3-2200g-2019-05-11 に記されている内容をそのまま要約しただけです。 GRUBのブートラインオプションに nomodeset のようなおまじないがあることは何となく知ってたけど実際に試してみたのは自分もこれが初めてです。 やっぱり出典のURLくらいは端折らずに貼っておくべきでした。 それにしてもRyzen5 2400G はLinuxで使うには申し分ない性能なので安定して使えるようになりさえすれば最高ですね。

@@faowff034faerf3490ur 私もこのnomodesetまでは見つけていましたがインストールがうまく行って再起動した際にもGRUB 起動メニューが出るところまでは出来ていましたがまたここでもう一回おなじ手順を行うことがわかりませんでした。自作は三台目でずっとAMDばかりでしたので今度はINTEL I-5 8400を考えていましたが価格が急騰したためまたまた5-2400gになりました。INTELにしていればこんなことにはならなかったのではと後悔していたところです。 私も丸鋸台自作して昨年は孫のために学習机を造り大変喜ばれました。大事に使っているようです。 ３ヶ月ぶりにPCがデュアルブートできるようになり本当に嬉しいです。ありがとうございました。

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こちらこそありがとうございます。さっそくチャンネル登録させてもらいました。

@@faowff034faerf3490ur ありがとうございます！！！

Thank you for your kind attention. XD I'm going to do it within the year as soon as possible. Now I'm adding an alarm function. I'll report to you when this task is over.

@@faowff034faerf3490ur Ok, but without the alarm function, the code is working perfect? I would not use the alarm, because, this is good for me; (meuviolino@hotmail.com) Thank you+

​@@Dancopymus I see. here you are. create.arduino.cc/editor/tarekichi/b1c1571c-bee4-472c-9cbf-80c460ef2f37/preview There are unnecessary codes left in it, but it should work normally. Later, I reduce those extra codes. Adding wake up alarm is due to technical interest in programming. Actually I do not use it.

Now I'm finished it. unnecessary code has been removed.

@@faowff034faerf3490ur Thank you very much; Is the Display connection to the Arduino standard?

here you are. However, this code has some problems due to RTC library selection. I would like to fix it as quickly as I can.

@@faowff034faerf3490ur when you fix it you will put the code in the discribtion ??

Mahmoud Rashad I rewrote the code on December 22, 2018. I think that you can understand without explaining. create.arduino.cc/editor/tarekichi/b1c1571c-bee4-472c-9cbf-80c460ef2f37/preview