Push POE project

memory-bank/projectbrief.md

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+# Project Brief
+
+## Project Name
+Modbus-to-MQTT Bridge for Environmental Sensor
+
+## Overview
+This project implements a Python-based bridge that reads temperature and humidity data from a Modbus TCP device and publishes the readings to an MQTT broker in JSON format. The system is designed for continuous, automated data acquisition and integration with IoT or monitoring platforms.
+
+## Core Requirements
+- Connect to a Modbus TCP device (sensor gateway) to read holding registers for temperature and humidity.
+- Process and calibrate the raw sensor data as per device documentation.
+- Publish the processed data to a specified MQTT topic at a configurable interval.
+- Support MQTT authentication (username/password).
+- Provide clear logging for connection, data acquisition, and publishing events.
+
+## Goals
+- Enable seamless integration of Modbus-based sensors with MQTT-based IoT systems.
+- Ensure reliable, periodic data transfer with error handling and reconnection logic.
+- Maintain code clarity and extensibility for future enhancements (e.g., more sensors, additional data fields).
+
+## Scope
+- Single Python script (poe.py) as the main application.
+- No web interface or GUI; headless operation via command line.
+- Focus on environmental data (temperature, humidity) but extensible for other Modbus registers.
+- No persistent storage; data is transient and only sent to MQTT.