https://github.com/mushtabaa/microcontroller-based-digital-multimeter

Developed a functional multimeter using a PIC24F16KA101 microcontroller, programmed in C to measure and display voltage, resistance, and capacitance values via serial output, employing UART2 protocol for realtime monitoring in Tera Term.
https://github.com/mushtabaa/microcontroller-based-digital-multimeter

c mplab mplabxide pickit4 teraterm uart

Last synced: 9 months ago
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Developed a functional multimeter using a PIC24F16KA101 microcontroller, programmed in C to measure and display voltage, resistance, and capacitance values via serial output, employing UART2 protocol for realtime monitoring in Tera Term.

• Host: GitHub
• URL: https://github.com/mushtabaa/microcontroller-based-digital-multimeter
• Owner: MushtabaA
• Created: 2024-10-29T05:21:38.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-10-29T06:03:04.000Z (over 1 year ago)
• Last Synced: 2025-02-09T04:16:57.704Z (over 1 year ago)
• Topics: c, mplab, mplabxide, pickit4, teraterm, uart
• Language: C
• Homepage:
• Size: 17.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Multimeter Project Using PIC24F16KA101 Microcontroller

This project demonstrates the design and implementation of a multimeter that reads and outputs **voltage**, **resistance**, and **capacitance** values. Utilizing a **PIC24F16KA101** microcontroller, the device is programmed to display measurements on a serial monitor. The project is built on a breadboard and programmed with **MPLAB X IDE** using **PICkit 4** as the in-circuit debugger. Readings are outputted via **UART2** to the **Tera Term** terminal application.



    

    

    

    



## Features

- Voltage Measurement: Reads and displays voltage on a connected component.

- Resistance Measurement: Calculates and outputs the resistance of a component.

- Capacitance Measurement: Measures capacitance values using a CTMU (Charge Time Measurement Unit) approach.

## Code Overview

The project’s code includes several critical files:

- **main.c:** Initializes the microcontroller, including clock and peripheral settings, and handles the measurement loops.

- **UART2.c:** Manages UART2 communication functions, including data transmission and interrupt handling.

- **IOs.c:** Handles input/output configurations, such as pushbuttons for triggering different measurement modes.

- **ADC.c:** Reads and processes the analog-to-digital conversions necessary for voltage and resistance measurements.

- **CTMU.c:** Configures and utilizes the CTMU module for capacitance measurement by timing charge and discharge cycles on the capacitor under test.

## Demonstration Video

Click below to watch a demonstration of the project

[![Demonstration Video](https://github.com/user-attachments/assets/90aa8bca-837c-4dd6-8958-179c4961deab)](https://www.youtube.com/watch?v=2IUto0paSR4)