ADT7320 STM32 HAL Driver

STM32 HAL-based driver for the ADT7320 high-accuracy digital temperature sensor over SPI.

🔧 Features

• Full STM32 HAL compatibility — supports all STM32 MCU series (F0–F7, G0/G4, H7, L0–L5, U0/U5)
• MISRA-C-style design — clean, safe, and portable for embedded and safety-critical applications
• Modular and portable — works with STM32CubeIDE, Keil, IAR, or Makefile-based environments
• Supports read/write access to all ADT7320 registers
• Accurate temperature conversion to degrees Celsius

⚙️ Getting Started

1. Configure SPI in STM32CubeMX

• Mode: Full-Duplex Master
• Data Size: 8-bit
• First Bit: MSB First
• Clock Polarity (CPOL): High
• Clock Phase (CPHA): 2nd Edge

2. Configure Chip Select (CS) Pin (Optional)

• Add a GPIO Output pin for CS (Chip Select)

3. Add the Driver to Your Project

• Include adt7320.h in your application code
• Add adt7320.c to your compiler
• Set the STM32 MCU series macro in adt7320_config.h
• Add the library folder to your compiler’s include paths

🧪 API Reference

Each function returns an ADT7320_StatusTypeDef status code.

ADT7320_Init(...)

Sends a reset sequence to initialize sensor.

ADT7320_ReadRegister(...)

Reads data from any ADT7320 register.

ADT7320_WriteRegister(...)

Writes data to any ADT7320 register.

ADT7320_ReadTemperature(...)

Reads and converts the temperature to °C.

💡 Example

A complete working example is available in example/main.c.

📜 License

This project is released under the MIT License.

👤 Author

Amirhossein Askari
📧 theamiraskarii@gmail.com
🔗 GitHub Profile