Introduction

Introduction

The project our group was to design a touchless sanitizer with a temperature display. Our group members are formed as Sangyeop Kim, Jamie Ruppert, and Liam Lucas. In this report, we will demonstrate the process of this project: how we made decisions, plans and changes during the period of the time.

In Project Description, it includes the information of details of the project: the information of the components, the purpose of our project, and the type of performance you can expect. Additionally, other following section will be:

• •  Project Methodology

  •  Project Management

  •  Recommendations and Lessons Learned

  •  Conclusion

Project Description

The project our team choose is a touchless sanitizer with a temperature display. In the beginning, we decided to use a 555timer switch as a monostable mode to activate the circuit with an IR sensor that delivers the signal to the 555 timer switch, and we figured out that the IR sensor has a flaw so we ended up changing the entire circuit. When it comes to the temperature sensor, we used the Arduino application with the code, when there is a signal coming in, the level of the temperature will pop up on the display.

We ended up using an Ultrasonic sensor to deliver the signal to the pump circuit and 74HC132 for the Oscillator and PWM circuit, then 74HC123 for Time delay and Set width, in order to match the set width we used 74LS74N for Compare Width. Instead of using the constant power from the receptacle, we use a 9V battery and to match the requirement of the component's voltage, we added the Voltage Regulator to stabilize 5V. The performance is that the signal will be triggering the Ultrasonic sensor and it give it back as ECHO, this will go along with each component and ON/OFF according to set up the time delay.

The outbreak of Covid has changed a lot of ordinary patterns of life, people started caring more about disinfection; therefore, we aimed at keeping it accessible without any concern of contamination, and simple for the user since people started concerning about sanitizing.