Introduction: 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

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

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

Step 5: RTC for Time Clock Output

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

Step 6: Code

Embedded C

Brave the Elements Contest

Participated in the
Brave the Elements Contest

Make It Glow! Contest

Participated in the
Make It Glow! Contest

Arduino All The Things! Contest

Participated in the
Arduino All The Things! Contest