Introduction: Scrolling Led Based Time and Temperature Display

Picture of Scrolling Led Based Time and Temperature Display

The project is used to display real time clock and temperature on the Scrolling Led Display

Step 1: Component List

With Quantity

DC adaptar (5v 2 amp) × 1

DC socket × 1

P89V51RD2 controller IC × 1

40 pin IC base × 1

16 pin IC base × 3

Crystal 11.0592 Mhz × 1

Capacitor 33 pf × 1

Capacitor 1000 µF × 1

Capacitor 10 µF × 1

Tectile Switch (4 pin small) × 1

Resistance 10K ohm × 1

Resistance 100 ohm × 24

Connecting Wires × 10

General Purpose PCB (1 feet by 1/2 feet) × 1

5 mm LED: Red × 600

transistor BC547 × 47

IC 4017 × 3

Step 2: Matrix Formation

Picture of Matrix Formation

LEDs should be connected in the form of a matrix

the positive terminal should go the row

and the negative terminal should go in the column.

Step 3: Temperature Sensor and ADC

Picture of Temperature Sensor and ADC

for calculating the temperature temperature sensor should be utilized and calculating its analog value analog to digital convertor is used. i am using ADC0809 for the circuit. if you have in built ADC in controller you can discard ADC and connect sensor output directly to microcontroller.

Step 4: Circuit Diagram

Picture of Circuit Diagram

Step 5: RTC for Time Clock Output

Picture of RTC for Time Clock Output

DS1307 ic can be used for calculating the actual time for the circuit.

Step 6: Code

Embedded C


sumitgrover97 made it! (author)2015-12-27

thank you @seamster

@ravijag this is the picture of the you can contact me at or +919988632849 or +919464519438

ravijag (author)2015-12-23

Looks good from the pictures. Can u share more details esp of the matrix and the schematic used?

seamster (author)2015-12-21

This looks really cool!

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