You can find the original file ≈ 15mb, also 1920×1200, 1680×1050 and 1280×800.

Image 01

[Original] [1920x1200] [1680x1050] [1280x800]

Image 02

[Original] [1920x1200] [1680x1050] [1280x800]

Image 03

[Original] [1920x1200] [1680x1050] [1280x800]

Image 04

[Original] [1920x1200] [1680x1050] [1280x800]

Image 05

[Original] [1920x1200] [1680x1050] [1280x800]

Image 06

[Original] [1920x1200] [1680x1050] [1280x800]

Image 07

[Original] [1920x1200] [1680x1050] [1280x800]

What do you think?

I got my Dotklok up and running some days ago, I am really enjoying it on my room.
But I want to do more with it. Too bad right now I don’t have much time to play with electronics and build cool things.

Anyway, today I decided to spend some time learning the Dotklok’s code and add a temperature sensor to it. The result was really cool, and now I am sharing the bit of code I added to the clock.

To make it work in your clock, you must add a new effect called temperature(); in the switch area, then in
time animations, add the code below. And for the hardware, I used a LM35 Temperature Sensor connected in 5V, GND, and AD3, but can use any AD available, just change the code afterwards.

Here is the code, but you can check the RAW file too.
[cc lang="c"]

// temperature()
// Temperature Sensor + Clock – by Daniel Spillere Andrade – www.DanielAndrade.net
// Should Change the Temperature Only when minutes change, to prevent floating on temperature
// Based on http://www.danielandrade.net/2008/07/05/temperature-sensor-arduino/ – Daniel Spillere Andrade – daniel [a] danielandrade.net

void temperature(){

ht1632_clear();

plot(0,0,1); plot(0,15,1); plot(23,15,1); plot(23,0,1);

//Draw Dots and Temperature

plot(7,3,1);
plot(7,5,1);
plot(16,3,1);
plot(16,5,1);

plot(13,9,1);
plot(13,10,1);
plot(14,9,1);
plot(14,10,1);

// Drawing the ‘C’, it’s ugly I know
for(int i=16;i<19;i++){
for(int j=9;j<14;j++){
if(j==9 || j==13) { plot (i,j,1);}
else { plot(16,j,1); }
}
}

int temppin = 3; // Define LM35 PIN
int tempval; // Temperature Read Variable

tempval = ( 5.0 * analogRead(temppin) * 100.0) / 1024.0; //Makes the first read

/* TIME LOOP */
do{

time_now = RTC.now();

if( ( time_now.minute() != time_prev.minute() ) ){
if( !power_up && midnight_random() ) return;

tempval = 0;
for(int i=0;i< =9;i++){
tempval = tempval + (( 5.0 * analogRead(temppin) * 100.0) / 1024.0); // Reads the Variable and converts to Celsius
delay(100); // tempf = (tempval * 9)/ 5 + 32; to converts to fahrenheit
}
tempval = tempval/10;

}
// Here starts the code.
// Draw Temperature, only when minute changes!

putchar_3x5(5,9,(tempval%100)/10);
putchar_3x5(9,9,tempval%10);

//Draw Time
putchar_3x5(0,2,(time_now.hour()%100)/10);
putchar_3x5(3,2,time_now.hour()%10);
putchar_3x5(9,2,time_now.minute()/10);
putchar_3x5(12,2,time_now.minute()%10);
putchar_3x5(18,2,time_now.second()/10);
putchar_3x5(21,2,time_now.second()%10);

time_prev = time_now;

/* CHECK BUTTONS, return if necessary */
if( change_animation() ) return;

while( PAUSE && b5.isPressed( )); // pause mode for photos

} while(1);

}

[/cc]

Some more pics and video.

What do you think?
If you modify the code, don’t forget to share!

Thanks for reading!

Just for fun!

I won’t get in details about this code, it’s quite straightforward. But if you have any question, just ask!

[cc lang="c"]

/* Bhaskara Calculator
Daniel Spillere Andrade – www.danielandrade.net
Simple code showing how to use arduino to calculate Quadratic function.

X => [-b +- sqrt( b^2 - 4ac)] / 2a

Change the a, b and c to get the result via Serial Monitor
*/
int a = 1;
int b = -10;
int c = 25;
float delta, result1, result2;

#include “math.h” // Math!

void setup() {

Serial.begin(9600);

// Calculte delta
// b^2 – 4 * a * c

delta = pow(b,2) – 4 * a * c;

// Analize delta

if(delta<0) {
Serial.print(“DELTA=”);Serial.println(delta);
Serial.println(“Delta < 0, can't calculate!");
// Ends the program
}

else if (delta==0) {
Serial.println("Delta = 0, we can calculate!!!");

result1 = result2 = (-b) / (2 * a);

Serial.print("X1=X2="); Serial.println(result1);

}

else if (delta>0) {

// X1 != X2

delta = sqrt(delta);

Serial.print(“DELTA=”);Serial.println(delta);
Serial.println(“Delta > 0, we can calculate”);

result1 = (-b + delta) / (2 * a);
result2 = (-b – delta) / (2 * a);

Serial.print(“X1=”); Serial.println(result1);
Serial.print(“X2=”); Serial.println(result2);
}

//Done

}

void loop() { }

[/cc]

I’m planning on releasing all the project as Open Hardware/Source, but due my lack time, it’s not on my website yet!
Would you like to take a look at this project??

Hey, I got so exited about the DotKlok that I decided to build my own! As it’s quite difficult to buy one from here (I live in Florianópolis – Brazil), and to pay U$150 for the Kit wouldn’t work for me… So I want to build a good looking clock for my room, which I only have my computer and mobile as clock.

First of all, I needed to buy the 24×16 Led Display from Sure Electronics, which I found for a good price at eBay (little cheaper then buying from the Website).

I just got back from the gym when the board arrived from the post office, as you can see by my face:

Then I got the PCB from Dorkbotpdx, which came really fast and with really good quality, as you can see in the image below, and the board is dark purple, really cool!!

So here is the clock working:

My next step is to add a LM35 temperature sensor to it and learn the code so I can make my own effects. I will also disable some effects that it’s too hard to read like in more code, not really useful.

If you want to build your own, you should check http://www.technoetc.net/dotklok/ for instructions, code, design and everything else you may need.

Keep posted for my new mods for this amazing clock.
Thanks

This is amazing, perfect for those times when your have to create another board just to hold the atmega µC. I am looking forward to use this tiny board in some project in a near future. Congrats to Varesano for the project.

You can check his project HERE.

DOTKLOK: Game Time from The Latest Artists on Vimeo.

DOTKLOK is an open-source, hackable, Arduino-based digital clock that displays a series of unique time-telling animations. The passing of time is depicted with numbers and abstract/geometric patterns such as Morse code and minimal analog clock faces, and includes animations inspired by classic video games such as Pong, Tetris, Pacman, and Space Invaders.

You can buy the kit for U$150.00 and it assembled for U$200.00
for me… I think I will build one, hell yeah I’m going to build one, just love it!!!

You can check more information from dotklok’s website.

I know I haven’t posted much things lately, but there’s more to come in a near future!! You will like it! But for now, you HAVE to watch this amazing documentary about the Arduino Board and it’s story!

Having fun with Arduino PWM & Oscilloscope and trying to understand some more

Here are some links if you want to know more at Wikipedia and Arduino Website