esp32-DCF77_Analyzer_Clock

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esp32-DCF77_Analyzer_Clock

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⏰ An ESP32 TFT interpretation of the @deruiter's DCF77-Analyzer-Clock-V2.0

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# esp32-DCF77_Analyzer_Clock
An ESP32 TFT interpretation of the @deruiter's [DCF77-Analyzer-Clock-V2.0](https://github.com/deruiter/DCF77-Analyzer-Clock-V2.0)

[![image](https://raw.githubusercontent.com/tobozo/esp32-DCF77_Analyzer_Clock/master/assets/img/dcf77-demo.gif)](https://www.youtube.com/watch?v=TQnQEQfLkGE)

Hardware Requirements:
----------------------
  - ESP32
  - TFT (160*128 minimum recommended, working on elastic design to cover higher resolutions)
  - DCF77 Atomic clock module ( such as this one https://www.universal-solder.ca/product/canaduino-60khz-atomic-clock-receiver-module-wwvb-msf-jjy60/ (WWVB/JJY60/MSF/DCF77) or https://www.pollin.de/p/dcf-77-empfangsmodul-dcf1-810054 (DCF77))
  - RTC Module (preferably i2c, e.g. a 5V DS1307 or 3V3 DS3231)
  - Buttons (optional)
  - Speaker (optional)

Software Requirements:
----------------------
  - M5Stack Core or ESP32-Chimera-Core for compatibility https://github.com/tobozo/ESP32-Chimera-Core (replaces M5Stack Core, adds support for Odroid-Go, TTGO-TS, Wrover-Kit LoLin D-32Pro)
  - Bodmer's JPEGDecoder for rendering jpeg in sprites https://github.com/Bodmer/JPEGDecoder

Running on an ODROID-GO:
------------------------

(Contributed by [dl9sec](https://github.com/dl9sec))

Thanks to the ESP32-Chimera-Core, the clock runs fine and flawless on an ODROID-GO (with sound output and buttons support for A/B/MENU).
  
  <img src="https://raw.githubusercontent.com/tobozo/esp32-DCF77_Analyzer_Clock/master/assets/img/OGO_esp32-DCF77_Analyzer_Clock.jpg" alt="ODROID-GO esp32-DCF77 Analyzer Clock" width="17%" height="17%">
  
  The hardware components has to be connected to the ODROID-GO's 10-pin connector:
  
  - The DCF modules positive pulse output has to be connected to `IO4` (5).
  - The RTC should be a DS3231 for convenience (3V3 system). Connect the supply pins to the ODROID-GO `P3V3` (6) and `GND` (1), `SDA` to `IO15` (4) and SCL to `IO12` (3) (hopefully the RTC will never need to do a clock stretching, because `IO12` is a buffered output pin, not an open-collector/-drain).
  
  To build a suitable ODROID-GO firmware file the following steps have to be proceeded:

- Uncomment the `#define CONFIG_OGO` in the `Config.h` (comment out any other of the platforms).
  - Activate the verbose compiler output at the Arduino IDE preferences.
  - Select the `ORDOID ESP32` as target in the Arduiono IDE.
  - Build the firmware (just clicking the checkmark).
  - When successfully finished the build process, watch one of the last lines of the Arduino IDE console output and navigate to the temporary directory where the compiler puts the file `esp32-DCF77_Analyzer_Clock.ino.elf`.
  - There you will find a file named **`esp32-DCF77_Analyzer_Clock.ino.bin`**. Copy this file to a directory (of your choice), where the executable `mkfw` (Linux) or `mkfw.exe` (Windows, get it here: [https://forum.odroid.com/viewtopic.php?t=31939](https://forum.odroid.com/download/file.php?id=9325&sid=f3db9325d02e3d69aa28fcd5d3e3a064)) could be found.
  - Copy the file `\assets\img\OGO_DCF77_Analyzer_Clock_Logo.raw` to the same directory (icon file created as described [here](https://wiki.odroid.com/odroid_go/arduino_app#make_tile_image_with_ffmpeg)).
  - Create the firmware with `mkfw "DCF77 Anylyzer Clock" OGO_DCF77_Analyzer_Clock_Logo.raw 0 16 1048576 app esp32-DCF77_Analyzer_Clock.ino.bin` (Windows) or `./mkfw "DCF77 Anylyzer Clock" OGO_DCF77_Analyzer_Clock_Logo.raw 0 16 1048576 app esp32-DCF77_Analyzer_Clock.ino.bin` (Linux).
  - Rename the file with `ren firmware.fw esp32-DCF77_Analyzer_Clock.fw` (Windows) or `mv firmware.fw esp32-DCF77_Analyzer_Clock.fw` (Linux).
  - Put the firmware file `esp32-DCF77_Analyzer_Clock.fw` to your ODROID-GO's SD card in the `odroid\firmware` folder and install it from there to your ODROID-GO.
  - After a software reboot you need to power the ODROID-GO off and on again to re-init the incomplete graphics.

CREDITS:
--------
  I learned a lot from Erik de Ruiter who learned a lot from the work of Matthias Dalheimer and Thijs Elenbaas
  who made their own DCF77 decoders.

Although the changes I made are far from optimistic, this code has wisdom DNA in its roots!

Without the incredible work of these geniuses I would not have known where to start and how to write those credits :)

Huge thanks to [@BrettOliver](https://github.com/brettoliver) for fueling the code with a 320x240 UI, implementing the leap second, and [much more](http://www.brettoliver.org.uk/DCF77_Signal_Generator_Analyzer/DCF77_Signal_Generator.htm#leapsecond)

Author:
-------
  - https://github.com/tobozo/
  - https://twitter.com/tobozotagada/
  - https://www.youtube.com/c/tobozotagada

Interesting websites:
---------------------
  - Inspirational video     : https://www.youtube.com/watch?v=ZadSU_DT-Ks
  - UI code based on        : https://github.com/deruiter/DCF77-Analyzer-Clock-V2.0
  - Crypto code based on    : https://github.com/FroggySoft/AlarmClock
  - Weather code based on   : http://arduino-projects4u.com/home-weather-station/
  - Erik de Ruiter          : https://www.hackster.io/edr1924
  - Brett Oliver            : http://www.brettoliver.org.uk/
  - Joop Tap                : http://www.jooptap.nl
  - Thijs Ellenbaas         : http://thijs.elenbaas.net/2012/04/arduino-dcf77-radio-clock-receiver-hardware-2/
  - Mathias Dalheimer       : https://github.com/roddi/DCF77-Arduino/blob/master/DCF77Servoclock/DCF77.h
  - DCF77 wikipedia         : https://en.wikipedia.org/wiki/DCF77
  - Much more DCF77 info    : http://www.picbasic.nl/indexes_uk.htm
  - Erik de Ruiter's Flickr : https://www.flickr.com/photos/edr1924/albums
  - Erik de Ruiter's Github : https://github.com/deruiter
  - FroggySoft's Github     : https://github.com/FroggySoft

esp32-DCF77_Analyzer_Clock

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