https://github.com/beckversync/uart-loopback-and-adc-communication

Implementing UART loopback communication and ADC sensor reading on the STM32 microcontroller. It also builds a simple communication protocol between the STM32 and a console terminal.
https://github.com/beckversync/uart-loopback-and-adc-communication

Last synced: 11 months ago
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Implementing UART loopback communication and ADC sensor reading on the STM32 microcontroller. It also builds a simple communication protocol between the STM32 and a console terminal.

• Host: GitHub
• URL: https://github.com/beckversync/uart-loopback-and-adc-communication
• Owner: Beckversync
• Created: 2024-12-13T09:56:33.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2025-03-05T12:17:03.000Z (over 1 year ago)
• Last Synced: 2025-03-05T13:26:22.435Z (over 1 year ago)
• Language: C
• Homepage:
• Size: 3.37 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# STM32 UART Loopback and ADC Communication 🚀

This project implements UART loopback communication and ADC sensor reading on the STM32 microcontroller. It also builds a simple communication protocol between the STM32 and a console terminal.

## Table of Contents

- [Project Overview](#project-overview)

- [Features](#features)

- [Implementation Steps](#implementation-steps)

- [Communication Protocol](#communication-protocol)

- [How to Use](#how-to-use)

- [Tools and Environment](#tools-and-environment)

- [Contributors](#contributors)

- [License](#license)

## Project Overview

This project showcases real-time UART loopback communication and ADC data acquisition on an STM32 microcontroller. The system receives console commands and sends sensor data in a specific protocol format.

## Features ✨

- **UART Loopback:** Echoes any received character back to the terminal.

- **ADC Sensor Reading:** Captures analog voltage from PA0 and converts it to digital value.

- **Real-time Data Transmission:** Sends ADC values over UART every 500ms.

- **Command Parsing:** Supports specific console commands to request and acknowledge data.

- **Timeout Management:** Resends data packet if no response is received within 3 seconds.

## Implementation Steps 🛠️

1. **Setup UART Communication:**

   - Configure USART2 for interrupt-driven communication.

   - Implement an interrupt callback for receiving and transmitting data.

2. **Initialize ADC:**

   - Read analog data from PA0.

   - Convert ADC value to a readable format and transmit over UART.

3. **Implement Command Parser FSM:**

   - Receive and buffer incoming characters.

   - Parse commands like `!RST#` and `!OK#`.

4. **Build Communication FSM:**

   - Respond to `!RST#` with ADC value in format `!ADC=1234#`.

   - Wait for `!OK#` acknowledgment.

   - Resend data if no response after 3 seconds.

## Communication Protocol 📡

| Command     | Description                  |

|-------------|----------------------------|

| `!RST#`     | Request sensor data         |

| `!ADC=xxxx#`| Response with ADC value     |

| `!OK#`      | Acknowledge received data   |

## How to Use 🧑‍💻

1. Flash the STM32 code onto your development board.

2. Open a terminal emulator and connect to STM32’s UART.

3. Send `!RST#` to request sensor data.

4. Observe ADC readings and acknowledge with `!OK#`.

## Tools and Environment 🧰

- STM32F103C6 Microcontroller

- STM32CubeIDE and HAL Library

- Proteus for Simulation (Optional)

- Serial Terminal Emulator (e.g., Tera Term, PuTTY)

## Contributors 👩‍💻👨‍💻

- Beckversync

## License 📝

HCMUT