This is the project I have done in my 4th semester at the University of Moratuwa. The device I developed is Heart rate monitor, it can measure both pulse rate and temparature.
What you can find here :
- Components
- Schematic Design
- PCB Design
- Enclosure Design
- Software Integration
- Power ON the device
- Use the buttons to navigate through the menu options on the LCD screen
- Choose the desired measurement mode from the menu:
- Heart rate
- Temparature
- Follow the on-screen instructions to perform measurements
- View the measurement results on the LCD screen
- Pulse rate sensor
- Temperature sensor
- Microcontroller
- LCD display
- Power supply unit
- Custom-designed PCB
- 3D-printed enclosure
The pulse rate sensor and temperature sensor are connected to a microcontroller that processes the data. The microcontroller then displays the information on an LCD screen for easy reading.

I have designed a 2 layer PCB for this device using Altium software. The PCB design involved creating a custom circuit board layout that ensures efficient connections and a compact arrangement of components. This design minimizes noise interference and facilitates easy assembly.

I have designed a 3D-printed enclosure useing Solidworks software, to the ergonomic and compact enclosure not only protects the delicate components but also ensures user comfort and convenience during measurement.
The software aspect involves programming the microcontroller to manage data from the sensors and display it on the LCD. I have used Arduino IDE for progamming the microcontroller.





