It's a musical desktop alarm clock with a theme of well-known MARIO game. Actually I like to wake up with the Mario theme instead of my cellphone. Also the LEDs (color tubes) blinking make it more beautiful.

Features:

- Display of Time, Date, Temperature

- Mario image and music on startup theme and alarm time

- Adjustable time, date, alarm

Used parts:

- 1x Arduino ProMini 5v

- 1x Nokia 5110 LCD

- 1x DS1307 module (real-time clock)

- 1x Speaker/Buzzer

- 1x DS18b20 Temp sensor

- 1x Electronic board

- 4x LED (different colors)

- 4x Push button

- 4x Resistor 220 (for LEDs)

- 5x Resistor 1K (4x for buttons, 1x for Temp sensor)

- 1x Hot glue stick (tube) which cut into 4 pieces 2x 6cm and 2x 8cm

- 8x metal rings and cylinders (I used Ferrite beads salvaged from my old printers)

- 1x Plastic box

- 5x mini battery, or 4x AA battery

- Tools: Hot-glue gun, soldering iron, pliers, some wires, ...

Step 1: Make a Desktop Clock Box

If you want to use it as a real desktop clock, so find a pretty box. I've used the soldering iron to melt the box and making holes for pushh buttons and the lcd.

Step 2: Make the Circuit

Attach the push buttons and resistors on the board. Fit the board in the box via hot-glue. Connect the LEDs under the glue tubes. Use the solderig iron to make a propper hole inside the tubes. Fit the parts like as temp sensor, rtc, batteries and others inside the box via hot-glue.

Step 3: Arduino Code

I've made a few images (Mario splash screen, Mario jump, Temperature icon, Alarm icon) with MSPaint which can be converted to binary data via LCDAssistant. All the coed is attached.

I think the code is enough plain and simple but, the following code hints can be helpful.

Classes:

- NokiaFa5110: Nokia LCD driver class.

- Util: Bitmap images.

- DS1307RTC, Time: Used for date time module.

- Wire, OneWire, DallasTemperature: Used for temperature sensor.

- EEPROM, avr/pgmspace: To use the EEPROM memory.

- Narcoleptic: A handy class to lower the battery usage via stand by delays.

Hints:

- A main switch-case and state variable used to handle the different menus and program states.

- The EEPROM memory has used to save the adjusted date and time variables.

- I've tried to partially refresh the LCD when the time, date or temp will change. The LCD is most battery consuming part.