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First Hello instructables.

This is my first contact with :

  • Instructables
  • Arduino
  • Programmable LED's

So please don't trow rocks at me for noobish mistakes.

Keeping that in mind I'm waiting to read your comments with grate interest and I'm open to any suggestion

Features :

  • big digits ( each digit is approximately the size of a A4 paper).
  • slim in order to fit in a photo frame (a big one).
  • auto dim the light depending on the light in the room.
  • dedicated DST button.

Step 1: Prerequisites

Things I used for this project :

Electronics :

  1. Arduino nano V3.0 (sadly since I can't afford an original arduino I used a chinese clone, for showing my support I donated 2.9 $ to arduino) - 2.9$ on ebay
  2. Digital Light Intensity Sensor Module Photo Resistor for Arduino - 0.99$ on ebay

  3. DS3231 AT24C32 IIC Module Precision Real Time Clock Quare Memory for Arduino - 0.99$ on ebay

  4. DC-DC Buck Converter Step Down Module LM2596 Power Output 1.23V-30V - 0.90$ on ebay

  5. 4m WS2811 led strip 30 leds/m - 12 $ on aliexpress (1 WS2811 IC control 3 LED Chip)

Total cost of electronics : 17.78 $ (without arduino donation)

Miscellaneous :

  1. Heat Shrink Tubing - 7.99$ ebay (assortment, it total 33m)

  2. 20 pcs 5 x 7 cm prototype pcb - 3$ ebay

  3. 3 pcs Micro Switch - 1$ locally bought

  4. Solder - 1$ locally bought

  5. Flux - 1$ locally bought
  6. UTP cable (individual wires used for various connections)
  7. LCD font (http://www.dafont.com/lcd-lcd-mono.font) - free
  8. Cardboard - free loacal supermarket
  9. Polystyrene board - 1.50$ locally bought

Various tools.

<p>bu projenizi &ccedil;ok beğendim. bende yapmak istiyorum .kodlamada sorun yaşıyorum. program derlemede hata g&ouml;steriyor. bana projenizin detaylarını yollarmısınız. teşekk&uuml;r ederim. iyi &ccedil;alışmalar. hcenqiz20@gmail.com</p>
In English please, I can't understand where you need help.
<p><a href="http://urun.gittigidiyor.com/ev-bahce/5-metre-3-cipli-serit-led-gun-isigi-ic-mekan-300-smd-led-ucretsiz-kargo-267415597" rel="nofollow">http://urun.gittigidiyor.com/ev-bahce/5-metre-3-ci...</a></p><p>with this product this project Can we work<br>We only want to use arduino and rtc in the circuit, and we want to show the time on the screen.<br>Could you help.<br></p>
calisan kod var mi hocam sizde
<p>Hi there, this is a cool project. I have already built the clock, but i'm having a problem with the code. When i try to compile it i get the error </p><p>exit status 1</p><p>'tmElements_t' was not declared in this scope</p><p>I have already fastled and DS3232RTC libraries. </p><p>Any idea? Thanks.</p>
I am getting the same mistake, how did you solve
I added<br><br>#include <br><br>and the problem was solved .
<p><a href="http://urun.gittigidiyor.com/ev-bahce/5-metre-3-cipli-serit-led-gun-isigi-ic-mekan-300-smd-led-ucretsiz-kargo-267415597" rel="nofollow">Http: //urun.gittigidiyor.com/ev-bahce/5-metre-3-ci ...</a></p><p>tek renk şerit led kullanarak bu projeyi yapabilir miyiz</p><p>bu kodlar ile &ccedil;alışır mı</p>
I had to add<br><br>#include
<p>Problem solved :). I had to add </p><p>#include &lt;TimeLib.h&gt;</p><p>Thankyou :)</p>
<p>Thank you everyone, i made my 1st version based on WS2812B cut by 3.</p><p>I will finish it later, maybe try to print the Temperature or add some effects! so many possibilities with those Leds it's awesome!!</p>
<p>tek renk şerit led kullanarak yapmak m&uuml;mk&uuml;n m&uuml;</p><p>termometre de ekleyebilir miyiz</p>
<p>Nice work, </p><p>You can get the temperature form RTC module using this code </p><p>int t = RTC.temperature();<br>float celsius = t / 4.0;<br><br>float fahrenheit = celsius * 9.0 / 5.0 + 32.0;</p><p>You can comment the last line if you want celsius. </p>
<p>hi, im almost finished with this great project. I just dont understand how to put this temperature code into the full code. Im total noob to programming ;-) can u help ? thanks a lot</p>
<p>Thanks for sharing this with us and thx for the tip i think you meant float t ;)</p><p>here is a video of what it looks like : every minute i add the cylon effet example and then it changes the color randomly from preselected array of colors.</p><p><strong>Here is my code :</strong></p><p>#include &lt;DS3232RTC.h&gt;<br>#include &lt;Time.h&gt;<br>#include &lt;Wire.h&gt;<br>#include &lt;FastLED.h&gt;<br><br>#define NUM_LEDS 90 // 5 by segment + 6 in the middle<br>#define LED_TYPE WS2812<br>#define COLOR_ORDER GRB // Define color order for your strip<br>#define BRIGHTNESS 150<br>#define LED_PIN 5 // Data pin for led comunication<br><br>CRGB leds[NUM_LEDS]; // Define LEDs strip<br><br>byte digits[10][21] = {<br> {<br> 0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }<br> , // Digit 0<br>{<br> 0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1 }<br> , // Digit 1<br>{<br> 1,1,1,1,1,1,1,1,1,0,0,0,1,1,1,1,1,1,0,0,0 }<br> , // Digit 2<br>{<br> 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1,1,1,1,1,1 }<br> , // Digit 3<br>{<br> 1,1,1,1,1,1,0,0,0,1,1,1,0,0,0,0,0,0,1,1,1 }<br> , // Digit 4<br>{<br> 1,1,1,0,0,0,1,1,1,1,1,1,0,0,0,1,1,1,1,1,1 }<br> , // Digit 5<br>{<br> 1,1,1,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }<br> , // Digit 6<br>{<br> 0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,1,1,1 }<br> , // Digit 7<br>{<br> 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }<br> , // Digit 8<br>{<br> 1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1,1,1,1,1 }<br>}; // Digit 9 | 2D Array for numbers on 7 segment<br><br>byte firstdigit[2][10] = {<br> {<br> 0,0,0,0,0,0,0,0,0,0 }<br> , // Digit 0 first number<br><br> {<br> 1,1,1,1,1,1,1,1,1,1 }<br>}; // Digit 1 first number | 2D Array for numbers on 7 segment<br><br>bool Dot = true; //Dot state<br><br>bool DST = false; //DST state<br>int last_digit = 0;<br>//long ledColor = CRGB::DarkOrchid; // Color used (in hex)<br>long ledColor = CRGB::MediumVioletRed;<br>long ColorTable[16] = {<br> CRGB::Amethyst,<br> CRGB::Aqua,<br> CRGB::Blue,<br> CRGB::Chartreuse,<br> CRGB::DarkGreen,<br> CRGB::DarkMagenta,<br> CRGB::DarkOrange,<br> CRGB::DeepPink,<br> CRGB::Fuchsia,<br> CRGB::Gold,<br> CRGB::GreenYellow,<br> CRGB::LightCoral,<br> CRGB::Tomato,<br> CRGB::Salmon,<br> CRGB::Red,<br> CRGB::Orchid};<br>void setup(){<br><br> Serial.begin(9600);<br><br> Wire.begin();<br>FastLED.addLeds&lt;WS2812B, LED_PIN, RGB&gt;(leds, NUM_LEDS);<br> // FastLED.addLeds&lt;LED_TYPE, LED_PIN, COLOR_ORDER&gt;(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );<br> FastLED.setBrightness( BRIGHTNESS );<br>pinMode(2, INPUT_PULLUP); // Define DST adjust button pin<br>pinMode(4, INPUT_PULLUP); // Define Minutes adjust button pin<br>// pinMode(5, INPUT_PULLUP); // Define Hours adjust button pin<br><br>}<br><br>// Check Light sensor and set brightness accordingly<br>void BrightnessCheck(){<br>const byte sensorPin = 3; // light sensor pin<br>const byte brightnessLow = 75; // Low brightness value<br>const byte brightnessHigh = 100; // High brightness value<br>int sensorValue = digitalRead(sensorPin); // Read sensor<br>if (sensorValue == 0) {<br>Serial.println(&quot;Brightness High&quot;);<br>LEDS.setBrightness(brightnessHigh);<br>}<br><br> else {<br>Serial.println(&quot;Brightness Low&quot;);<br>LEDS.setBrightness(brightnessLow);<br>}<br><br>};<br><br>// Get time in a single number<br>int GetTime(){<br> tmElements_t Now;<br> RTC.read(Now);<br> //time_t Now = RTC.Now();// Getting the current Time and storing it into a DateTime object <br> int hour=Now.Hour;<br> int minutes=Now.Minute;<br> int second =Now.Second;<br> if (second % 2==0) {<br> Dot = false;<br> }<br> else {<br> Dot = true;<br> };<br> return (hour*100+minutes);<br>};<br><br>void DSTcheck(){<br><br> int buttonDST = digitalRead(2);<br><br> Serial.print(&quot;DST is: &quot;);<br> Serial.println(DST);<br><br> if (buttonDST == LOW){<br><br> if (DST){<br><br> DST=false;<br><br> Serial.print(&quot;Switching DST to: &quot;);<br> Serial.println(DST);<br><br> }<br><br> else if (!DST){<br><br> DST=true;<br><br> Serial.print(&quot;Switching DST to: &quot;);<br> Serial.println(DST);<br><br> };<br><br> delay(500);<br><br> };<br><br>}<br><br>// Convert time to array needet for display<br><br>void TimeToArray(){<br><br> int Now = GetTime(); // Get time<br><br> int cursor = 90; //116<br><br> Serial.print(&quot;Time is: &quot;);<br> Serial.println(Now);<br><br> if (Dot){<br> leds[42]=ledColor;<br> leds[44]=ledColor;<br> leds[45]=ledColor;<br> leds[46]=ledColor;<br> leds[47]=ledColor;<br> //leds[48]=ledColor;<br> }<br><br> else {<br><br> leds[42]=0x000000;<br> leds[44]=0x000000;<br> leds[45]=0x000000;<br> leds[46]=0x000000;<br> leds[47]=0x000000;<br> //leds[48]=0x000000;<br><br> };<br><br> for(int i=1;i&lt;=4;i++){<br><br> int digit = Now % 10; // get last digit in time<br> <br> if (i==1){<br><br> cursor =69; //82<br><br> Serial.print(&quot;Digit 4 is : &quot;);<br> Serial.print(digit);<br> Serial.print(&quot;, the array is : &quot;);<br><br> for(int k=0; k&lt;=20;k++){<br><br> Serial.print(digits[digit][k]);<br><br> if (digits[digit][k]== 1){<br> leds[cursor]=ledColor;<br> }<br><br> else if (digits[digit][k]==0){<br> leds[cursor]=0x000000;<br> };<br><br> cursor ++;<br><br> }; // fin for<br><br> Serial.println();<br> if (digit != last_digit) <br> { fadefonction();<br> ledColor = ColorTable[random(16)]; <br> }<br> last_digit = digit;<br> <br> }// fin if<br><br> else if (i==2){<br><br> cursor =48;<br><br> Serial.print(&quot;Digit 3 is : &quot;);<br> Serial.print(digit);<br> Serial.print(&quot;, the array is : &quot;);<br><br> for(int k=0; k&lt;=20;k++){<br><br> Serial.print(digits[digit][k]);<br><br> if (digits[digit][k]== 1){<br> leds[cursor]=ledColor;<br> }<br><br> else if (digits[digit][k]==0){<br> leds[cursor]=0x000000;<br> };<br><br> cursor ++;<br><br> };<br><br> Serial.println();<br><br> }<br><br> else if (i==3){<br><br> cursor =21;<br><br> Serial.print(&quot;Digit 2 is : &quot;);<br> Serial.print(digit);<br> Serial.print(&quot;, the array is : &quot;);<br><br> for(int k=0; k&lt;=20;k++){<br><br> Serial.print(digits[digit][k]);<br><br> if (digits[digit][k]== 1){<br> leds[cursor]=ledColor;<br> }<br><br> else if (digits[digit][k]==0){<br> leds[cursor]=0x000000;<br> };<br><br> cursor ++;<br><br> };<br><br> Serial.println();<br><br> }<br><br> else if (i==4){<br><br> cursor =0;<br><br> Serial.print(&quot;Digit 1 is : &quot;);<br> Serial.print(digit);<br> Serial.print(&quot;, the array is : &quot;);<br><br> for(int k=0; k&lt;=20;k++){<br> Serial.print(digits[digit][k]);<br> if (digits[digit][k]== 1){<br> leds[cursor]=ledColor;<br> }<br> else if (digits[digit][k]==0){<br> leds[cursor]=0x000000;<br> };<br> cursor ++;<br> };<br> // Serial.println();<br><br> };<br>Now /= 10;<br>};<br>};<br>void TimeAdjust(){<br>int buttonH = digitalRead(5);<br>int buttonM = digitalRead(4);<br>if (buttonH == LOW || buttonM == LOW){<br>delay(500);<br>tmElements_t Now;<br>RTC.read(Now);<br>int hour=Now.Hour;<br>int minutes=Now.Minute;<br>if (buttonH == LOW){<br>if (Now.Hour== 24){<br> Now.Hour=1;<br> }<br>else {<br> Now.Hour += 1;<br> };<br>}<br> else {<br>if (Now.Minute== 59){<br> Now.Minute=0;<br> }<br>else {<br> Now.Minute += 1;<br> };<br>};<br><br> RTC.write(Now);<br>}<br>}<br>void fadeall() { <br> for(int m = 0; m &lt; NUM_LEDS; m++) { <br> leds[m].nscale8(250); <br> } <br>}<br><br>void fadefonction () {<br> static uint8_t hue = 0;<br> // First slide the led in one direction<br> for(int i = 0; i &lt; NUM_LEDS; i++) {<br> // Set the i'th led to red <br> leds[i] = CHSV(hue++, 255, 255);<br> // Show the leds<br> FastLED.show(); <br> // now that we've shown the leds, reset the i'th led to black<br> // leds[i] = CRGB::Black;<br> fadeall();<br> // Wait a little bit before we loop around and do it again<br> delay(10);<br> }<br><br>// Now go in the other direction. <br> for(int i = (NUM_LEDS)-1; i &gt;= 0; i--) {<br> // Set the i'th led to red <br> leds[i] = CHSV(hue++, 255, 255);<br> // Show the leds<br> FastLED.show();<br> // now that we've shown the leds, reset the i'th led to black<br> // leds[i] = CRGB::Black;<br> fadeall();<br> // Wait a little bit before we loop around and do it again<br> delay(10);<br> }<br>}<br>void loop() // Main loop<br>{<br>/*BrightnessCheck(); // Check brightness<br> DSTcheck(); // Check DST<br> TimeAdjust(); // Check to se if time is geting modified*/<br>TimeToArray(); // Get leds array with required configuration<br>FastLED.show(); // Display leds array<br> <br> /*float t = RTC.temperature();<br> float celsius = t / 4.0;<br> Serial.println();<br> Serial.print(&quot;Temp is : &quot;);<br> Serial.print(celsius);<br> Serial.println();*/<br><br>}</p><p><iframe allowfullscreen="" frameborder="0" height="281" src="//www.youtube.com/embed/wa8YIZJiv0I" width="500"></iframe></p>
<p>Cool project! He decided to build this same! (https://youtu.be/yhxRfyJSQ50) Few had to rewrite the code, I have a number of LEDs in segments - more! It wanted to make it shows the date and temperature! I already have DHT11 module! Unfortunately, I do not know how to program the Arduino. </p>
projeniz calisir durumda mi<br>kod ve devre semasini paylasir misiniz
<p>I have made the same project, it is gr8 weekend project</p><p><iframe allowfullscreen="" frameborder="0" height="281" src="//www.youtube.com/embed/LojGHyBFE8Q" width="500"></iframe></p>
yaptiginiz projeye ait devre semasi ve kodlari paylasir misiniz.<br>than you
<p>good day sir! can i ask how you code this clock? i want to have a countdown timer similar to this display. can you help me how to program it? only 24 seconds for a shot clock. thanks. </p>
<p>Hello Friend! I also plan to assemble LED ws2812b, but none like can`t find a suitable sketch. Could you share your sketch? </p>
<p>Hello friend. share the sketch, too, wanta thermometer</p>
<p>Thank you. I did on the 2812b, 2 pieces per segment. The hardest part was cut out pattern ... and it's not a joke, too small partitions in numbers. Thanks again.</p>
<p>hey how do i add the temperature on the 7 digit display ? </p><p>i made the clock with the ws2811 led's. </p>
<p>Great build! I want build it but i want to edit a little. I want to make a stopwatch that can count until 99,99 seconds, please can you answer me to some questions ?</p><p>1. What more parts i need to make it work?</p><p>2. Can I add 3 buttons, Start,Stop and reset?</p><p>3 Can i use two stopwatches on one Arduino board and have there 4 buttons,Start, Stop 1, Stop 2 and reset?</p><p>Thank you in advantage</p><p>ps:I don't know nothing about Arduino, I am learning it now and i like it :)</p>
<p>ayuda me brindar&iacute;as los archivos no soy premiun</p><p>metro es bryan_1300@hotmil.com </p><p>muchas gracias</p>
In English, please. <br>I don't understand where you need help.
<p>Hello, cool project. I was wondering if i can make the same with just a single color led strip instead of RGB?</p>
If they are individually addressable then yes.
alguien que me heche una mano hace mucho tiempo que intente hacer este proyecto con ws2811 pero hice todo como el tuto dice y sismpre me sale error en la compilacion de arduiino,,simplemente no funciona,,alguien podria pasarme el codigo completo y correcto ,ya que tengo todo el material pero no me funcione,espero me ayuden porfavor que quiero hacer este reloj tambien
Would the code for this be available please it's great
<p>Can this clock be modded to add seconds like 00:00:00?</p><p>thanks in advance ordering the parts now</p>
Yes it can display the seconds
<p>Brilliant instructable. now its working I'm going to play with the code to see if i can get another bottom to change the colour. Thanks for posting this</p>
<p>Thanks for your instructable ;)</p><p>After i realized that i shorted the sdl and scl line it works like a charm.</p><p>I've found a bug in your arduino script.</p><p>You can't use integer for the ledcolor, you have to use longinteger. Else your unable to use the red color.</p><p>Also i added some lines to use different colors at different times of day.</p><p>regards Martin</p>
<p>Bug and addition</p>
<p>can you post your code on github or directly here? I cant see well on those pictures.. thanks</p>
<p>Works like a charm, after few sleepless nights I finally got it working and to point out I had 0 experience doing arduino stuff or even soldering. Light leds.ino doesn't work, but when I got all required libraries the Clock.ino suddenly passed. Major struggles was the Arduino because I had no clue what it is and how to plug it and what to do with it and I scratched my head alot figuring out why buttons didnt work as I had arduinos GND missing. Would like to have more information on this instructable how to do this on the Arduino side (uploading it) and better image from circuitboard would make this alot easier. I had to redraw the circuit diagram with paint program (win) with all wires connected in different colours to find the missing wires on my board, still 5/5 got 2 more clocks to do!</p>
<p>https://youtu.be/GsmcKU57Mpg</p>
<p> PLEASE I need some help. been at this awhile and can't get it to work right. I have the LED's setup and soldered ( WS2812B ). I am using 5 leds per segment (35 per digit plus 2 for the dots). I wave a UNO wired up just like the project shows. The sketches I tried to use are not working ( I have tried to modify the code with the proper amount of LED's that I have but I cant get the darn thing to work properly.All I get are some leds coming on but that it. But then again I'm not sure what sketch to use because of the different led's that some of the sketches use. I am attaching a few pics to show what I have. Again please help me to get this thing working before I am completely bald! 8)</p>
<p>Hi rolie1<br><br>Have you tried to turn on all the leds on in a test project?<br>Maybe there is a fault in the wiring.</p><p>Have a look here: <a href="https://github.com/saxos1983/Arduino/blob/master/DigitClock/DigitClock.ino" rel="nofollow">https://github.com/saxos1983/Arduino/blob/master/D...</a><br><br>This code uses the FastLed library as in your code from the other post.<br>Have a look at line 118. Just initialize the LED strip with the WS2812b type in your case:<br>LEDS.addLeds&lt;WS2812B, LED_DATA_PIN, COLOR_ORDER&gt;(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);</p>
<p>Finally, I made it.<br>I grabbed some tools and managed to finish the clock.<br><br>Here are some images and videos for some impressions.<br>Youtube Video: https://youtu.be/rSLp_9kf9Lg</p><p><br>Here a re</p>
<p> Sorry for being a noob but I really want to build this clock. I have a bunch of WS2812b leds (30 per meters) The info at the the beginning of this instructable shows a Arduino nano V3.0. I have 2 Arduino uno V3 and a Leonardo. Will they work with this project? I still have to pickup the RTC but that should not be a problem. I went back through all these comments and I see a bunch of codes. I tried to cut and copy the codes but then it looks like some of the codes are for WS2811 that will not work with the WS2812b. I cut and paste the code from <a href="https://www.instructables.com/member/abdelhadj" rel="nofollow">abdelhadj</a>'s post from About 2 months ago (because the code has &quot;WS2812&quot;in it but get a error.</p><p>In file included from C:\Users\Rolie\Documents\Arduino\WS2912CLOCK\WS2912CLOCK.ino:4:0:</p><p>C:\Users\Rolie\Documents\Arduino\libraries\FastLED/FastLED.h:12:2: warning: #warning FastLED version 3.001.000 (Not really a warning, just telling you here.) [-Wcpp]</p><p> #warning FastLED version 3.001.000 (Not really a warning, just telling you here.)</p><p> ^</p><p>C:\Users\Rolie\Documents\Arduino\WS2912CLOCK\WS2912CLOCK.ino: In function 'void loop()':</p><p>WS2912CLOCK:377: error: expected '}' at end of input</p><p> FastLED.show(); // Display leds array</p><p> ^</p><p>exit status 1<br>expected '}' at end of input</p><p>Please any help would be great...Thanks a bunch 8)</p>
<p>Hy, </p><p>I think you didn't copied all the code. </p>
<p>Thanks a lot for giving me this brilliant idea.<br>I didn't use foam. I printed for each digit segment a case with a 3D printer and put the LEDs in it. The case has small slits on the edges so that the wires can go through.<br><br>I also have four buttons: Two to set the time, one to change the color mode (rotating colors, green, blue, white, ...) and one to change the brightness of the LEDs (low, full, by sensor). The settings are stored in EEPROM.<br>The code is available at: <a href="https://github.com/saxos1983/Arduino/blob/master/DigitClock/DigitClock.ino" rel="nofollow">https://github.com/saxos1983/Arduino/blob/master/D...</a></p>
<p>Anybody know how to connect the light sensor and the rtc for this code?<br>In my opinion the rtc connect to A4 and A5, the light sensor goes to A0? Or the light sensor need both A0 and D0 pin on Arduino?</p>
<p>Hi LaszloH1<br>I connected the light sensor and the RTC to the I2C Bus of the Arduino. The pins for the bus depend of your arduino board. See <a href="https://www.arduino.cc/en/Reference/Wire" rel="nofollow">https://www.arduino.cc/en/Reference/Wire</a></p><p>For my Arduino Nano (Atmega 328) its A4 (SDA), A5 (SCL).<br></p>
<p>Thank you! :)</p>
<p>Your code very nice, i want to try it, but i have a little problem. My compiler can't find the ardprintf.h file. For alternative method, i trying compile with the codebender's online compiler, but the result is lot of fastled library-related error. (I have my personal codebender library the newest fastled lib.)<br>Can you help me anything to fix this problems?</p>
<p>Hi LaszloH1<br>To keep it simple, remove all lines referencing to the ardprintf library.<br><br>#include&quot;ardprintf.h&quot;<br>#defineDIAGNOSTIC_MODE_PRINTF(x, ...)<br>all lines containing: DIAGNOSTIC_MODE_PRINTF(...)</p>

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