Week 8

Title of Activity
-Methodology, method that being used in this project and an explanations on each of the block diagram.

Objective
- To know what method being used in this project and the function of each component.

Content/Procedure
-Block Diagram.
-Explanation on each of the block diagram.
-Function on each block diagram.

Block Diagram

-Probe button

• Mode 1 the probe button is pressed, the voltage displayed on the LCD the output will be notified by speaker.
• Mode 2 the probe button is pressed, a single beep is output if the voltage is below a threshold of 2.5V or a double beep is output if the voltage is above the 2.5V threshold.
•  Mode 3 the probe button is pressed once, then the state machine sends a signal to start collecting data and update the min, max, and average values.
•  Mode 4 the data collected will be released.

-Logic Probe

•  Three probe inputs used: one to measure voltage, one for frequency, and the black is always connected to ground

-ATmega644

• The ATmega644 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega644 achieves throughputs approaching 1 MIPS per MHz allowing the system designed to optimize power consumption versus processing speed.

ATMega644

ATMega644 Block Diagram

Result/Analysis
 -As a result, the main focus of this research is on the reliability estimation of development talking voltmeter. Each part has its own purposes. This project focuses on the designing of the talking voltmeter and the target is to produce a product with a minimum cost as possible. The hardware part of this system includes a logic probe, speaker, average voltage and frequency measure.


Conclusions
 As a conclusions, this project focuses on the designing of the talking voltmeter and the target is to produce a product with a minimum cost as possible and easy understanding or friendly user.