Salat Time

OLED 0.98" I2C SSD1306

Arduino Nano R3

RTC DS1307

<h3 >SalatTime-Arduino-oled</h3>An Arduino code that displays on a small 0.98&#34; OLED SSD1306 Date/Time and also calculates and displays Salat Time for a given townThe animation at the end will give the different time as following:<figure><img src=https://projects.arduinocontent.cc/69a10c85-935d-49c1-baff-3d5c1f993a05.gif /><figcaption> </figcaption></figure> <h3 >1. Building the circuit</h3>You need 1 Arduino Nano but any Arduino can be used.1 RTC DS1307 or DS3231 (more precise)1 I2C OLED displayI used a small 0.98&#34; OLED with I2C interface SSD1106 that is supported by the excellent library U8g2That's allHere is the schematic<figure><img src=https://projects.arduinocontent.cc/e43518cc-7f78-4182-896c-5ad3e8d2cead.png /><figcaption> </figcaption></figure><h3 >2. The program</h3>The code is shared on github:<a href="https://github.com/blotfi/SalatTime-Arduino-oled">https://github.com/blotfi/SalatTime-Arduino-oled </a>This code has math routines to compute sun position and muslims salat (prayer) time for a given town (latitude / longitude), DST and convention. The hardware part is composed of an Arduino Nano, a RTC DS1307 and the SSD1306 OLED display to display the time, the date and prayer times.More info<ul ><li ><a href="https://baghli.blogspot.com/2016/07/rtc-salattime-et-arduino.html">https://baghli.blogspot.com/2016/07/rtc-salattime-et-arduino.html</a></li></ul><ul ><li ><a href="https://baghli.blogspot.com/2016/07/position-du-soleil-et-salattime-pour.html">https://baghli.blogspot.com/2016/07/position-du-soleil-et-salattime-pour.html</a></li></ul><ul ><li ><a href="http://salat-mosque.com/programme.php#Sources">http://salat-mosque.com/programme.php#Sources</a></li></ul><ul ><li >check the conventions on <a href="http://salat-mosque.com/salattime.php">http://salat-mosque.com/salattime.php </a>(in expert mode)</li></ul>Here is the part of code you have to adapt to change for your town:in mainroutines.cpp<pre ><code >/** change your town */ \tconst char CountryName[] PROGMEM = &#34;Algeria&#34;; \tconst char TownName[] PROGMEM = &#34;Tlemcen&#34;; \tconst double latitude = 34.88*deg2rd; \tconst double longitude = -1.31*deg2rd; \tconst int TimeZoneTown = \t1; \tconst int Convention = 1; \tconst int DST = 0; </code></pre>in stoled.ino<pre ><code >//rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); </code></pre>uncomment to force the RTC to take the compilation date and time