Week 9-(11th October 2021 – 17th October 2021)-Drawing Circuit Diagram of project

 13/10/2021 

Week: 9 

Date: 11th October 2021 – 17th October 2021 

Activity: Drawing Circuit Diagram of project 

 

Content: 

• This project is obviously an electronic-based project as most of the system inside the project used electronic parts and components. The circuit diagram is a drawing which shows the connection for each component inside the project which are microprocessors, relay, LED and sensors. The circuit diagram is the most important and critical part of the project because the design should be correct in order to get the output expected from the circuit.

•  For this project, the main input is the ultrasonic sensor that acts as proximity sensors, which can detect the presence of any mosquitoes approaching the trapping devices. Firstly, mosquitoes are captivated to the floral scent cologne in the mosquito trapping devices. In order to detect incoming mosquitoes, an ultrasonic sensor emits ultrasonic waves with a frequency of 40kHz. When the Raspberry Pi 3 sends commands to the relay, the project is processed into activation mode. Relay (Mode: ON) will control the switching of the DC fan and electric fence to operate.

• Next, the mosquitoes that approaching the trap devices by scent of floral cologne will again get captivated by light emits by UV light LED, which is positioned behind an electric fence that emits 390nm of wavelength. Then, a 12V DC Fan (Mode: ON) revolves at 2100-3300RPM to attract mosquitos into the trapping device which bring it closer to electric fence. The mosquitoes cannot escape the trap since the fan rotates at a high speed. When a mosquito comes into contact with an electric fence, it is electrocuted (Mode: ON).  

• Lastly, dead mosquito spotted in the box will be removed manually the next day. The user may turn off the project at any moment. The output can be seen on the current status of devices in the dashboard section from user’s laptop using Adafruit cloud.