STM32 Modbus RTU Firmware Development

STM32 Firmware Developer – Modbus RTU Device Integration

We have an STM32-based controller that communicates with several industrial sensors over RS485.

We are looking for an experienced firmware developer to complete and improve the communication layer.

Scope
Implement Modbus RTU Master on STM32
Poll 3–5 slave devices periodically
Handle communication errors and retries
Store device configuration in Flash memory
Create UART debug commands for diagnostics
Provide clean, documented code
Existing Status
Hardware is completed
STM32CubeIDE project already exists
Basic drivers for UART and RS485 are available
Deliverables
Working firmware source code
STM32CubeIDE project
Configuration documentation
Demonstration video showing communication with devices
Requirements
Strong STM32 experience
Embedded C
Modbus RTU experience
UART / RS485 communication
Ability to debug communication issues
To Apply

Please provide:

Similar STM32 or Modbus projects
Your estimated completion time
Brief description of your approach

Only developers with proven embedded firmware experience should apply.