Digital Clock and Temperature Block Circuit Diagram Schematic

A new agenda alarm and temperature affectation which is alernate affectation amid time and temperature.

Feature

- Affectation time 24-hour format. 00:00 – 23:00

- Use DS1307 RTC with 3V betterry back-up.

- 1 approach temperature sensor(DS1820)

- measures temperatures from -55 to + 125 amount Celsius.

- Temperature accurateness 0.5 ‘C

- software aggregate with CCS C compiler V 3.222

Digital Clock and Temperature Block Circuit Diagram

The amount 1. is a block diagram for agenda alarm and agenda thermometer.It consists of 1 temperature sensor, RTC ,Microcontroller(PIC), about-face annals ,7-segment and key board.The about-face annals use for aggrandize I/O of CPU becuase it has 13 I/O alone for PIC16F826.This about-face annals is a accessory contains an 8-bit serial-in, parallel-out about-face annals that feeds an 8-bit D-type accumulator register.

Digital Clock and Temperature Block Schematic

Figure 2. is the schematic for this project.PIC16F628 acclimated to ascendancy all assignment such apprehend temperature,read RTC from DS1307

convert abstracts to 7-segment cipher .The detail of ability accumulation not appearance in the circuit.

Note : you charge converting 7-segment pin for two appropriate digits or chiffre for minute by change Segment A to D, B to E, C to F and so on.