1st phase of project.

The first phase of the project consist 3 type of circuit. The first circuit is Power AC - DC circuit. Using transformers 9V @ 9VA step down, it will lower 240VAC from socket supply to 5VDC using LM7805. The output voltage is then connected to connector. From the connector, the circuit will then continue the sensor circuit. Below is the schematic diagram and PCB board layer.

Schematic Diagram Power AC-DC circuit

PCB Board Power AC-DC circuit

The second circuit is about ambient pollution measurement circuit. In this circuit, sensor MQ5 for circuit testing. The sensor MQ5 detect LPG. The actual sensor that we must use is air quality sensor. Unfortunately the sensor is late arrival due to online ordering, so for now MQ5 is use first. The MQ5 will detect density of the LPG. The density then translate from voltage to binary using ADC0804. The output from ADC have been put LED for easy reading the the LSB and MSB. Below is the schematic diagram and PCB board layer.

Schematic Diagram Ambient Pollution

PCB Board Ambient Pollution circuit

The third circuit is about wind speed measurement circuit. This is low cost circuit replacing high cost anemometer sensor.The concept of the circuit can be found at this website. The website explain the differentiation value between power diode create output that convert it into wind speed. Below is the schematic diagram and PCB board layer.

Schematic Diagram Wind Speed Sensor circuit

Schematic Diagram Wind Speed ADC circuit

PCB Board Wind Speed Sensor circuit

PCB Board Wind Speed ADC circuit

For the next post I'll write about how to construct this circuit from normal PCB board

Description about my project

Title: Development of Weather Monitoring System using ALTERA DE 2 Board (Ambient Pollution and Wind Speed Measurement) 


Project description: In this project, students are required to gain a knowledge about electronics equipment used in weather monitoring system specifically for Ambient Pollution and Wind Speed Measurement. They also have to do some research on how to used ALTERA DE2 Board and study about verilog HDL coding. At the end of Sem I, students are expected to produced their own schematic diagram for the sensor part. During SEM II, student should be able to construct their own weather monitoring system and verify it by using ALTERA DE 2 Board.

So basically this project 2 phase of work. The first one is to create circuit to detect ambient pollution and then the other one is the wind speed. For ambient pollution, I decided to use gas pollution detection method because it easy to collaborate with wind speed project.The second phase is about writing coding for FPGA in Verilog HDL words. This coding will display the reading at FPGA.

For the first phase, I have done creating the circuit. First, I research the suitable circuit to use in this project by browsing internet. After choosing the circuit, by using ISIS PROTEUS 7 profressional software. After done drawing the circuit schematic, I convert the schematic circuit into PCB layer board using ARES PROTEUS 7 sofware.Because of PROTEUS 7 Professional have serious issue with Window 7 (don't have compatibility to support Window 7 and easy to crash), EAGLE Win software have been use to view the file.

For the next post, I will show and explain about the schematic circuit diagram.

1st post

This blog is created because of the new concept applied to the student that doing final year project to have their own project progress shown on blog. On the next post, I will explain 1st about my final year project entitled "Development of weather monitoring system using Altera DE2 Board (Ambient Pollution and Wind Speed measurement) "