Propeller Clock

Agenda General Introduction Working Theory Applications Hardware Description Mechanical Assembly

General intro Propeller clock : Linear array Of light Emitting Diodes, Rotating at a high angular velocity to generate a circular screen

Theories Persistence of vision :This is a phenomenon which is related to vision capability of human eye by which an after image is thought to persist for one sixteenth of second approximately Limit Of Resolution :Shortest Distance between two points on a specimen that can still be distinguished by the observer as separate entities

Purpose To show accurate date and time Circuit must contain memory capacitor to track current time It can be replaced by IC Ds 1307 ‘Real clock Time’ (RTC) It works in Analog as well as Digital Mode

Block diagram of Propeller Clock S T R I P RTC DC MOTOR POWER SUPPLY M C O N

Hardware Description Hardware Description Microcontroller Dc Motor Real Time clock LED’s module

MICROCONTROLLER Microcontroller ATMEGA8P is a Heart of propeller clock Mainly used Because of its less weight, maximum memory capacity Programmable 32kbytes flash memory Internal RAM 2K bytes

LED’s Module These Units consits Of 17 intensive LED’s which fixed in one side of our PCB As it rotates with high speed electrical signal get converted into optical signal

Real Time Clock(DS 1307) Clock having low power and inbuilt power circuit to detect the faults Accurate is given by RTC Microcontroller ATMEGA328P is a Heart of propeller clock Mainly used Because of its less weight, maximum memory capacity

Mechanical Assembly Assembly of board is mounted on the top of the motor. It can improve the overall efficiency and stability of project if it is assembled perfectly

RTC MICROCONTEOLLER POWER SUPPLY

Software simulation :

Advantages It can Used as wireless data transfer such as Text Message Pictures It is useful as Automatic display Mostly Used in organisation,Industries,Public Places Spy watch For security Purpose For Monitoring Internal behaviour of industry

Conclusion Idea Behind This project was Clock should Built lighter which provides more stability It gives display using bright light LED’s