lnart / dryAgerEdgeDevice

DryAgerEdgeDevice

Introduction

This repository contains the hardware component management for DryAger systems. It facilitates the setup on a Raspberry Pi connected to various sensors. The device uses a local MongoDB server instance and a Node.js server to handle database connections, MQTT communication, and sensor data processing. Currently, sensor data reading is simulated with mock functions.

Related API repository: Link to API Repository

Table of Contents

• Installation
• Usage
• Features
• Dependencies
• Configuration

Features

• Read sensor data from connected sensors (currently mocked).
• Process and analyze the sensor data.
• Send data to a specified MQTT server.

Installation

Prerequisites

• Raspberry Pi 4
• Node.js installed (Node.js Documentation)
• Docker installed (Docker Documentation)
• MQTT server and API running (API Repository)

Steps

1. Clone the repository to your Raspberry Pi:

   git clone [repository-url]

2. Navigate into the cloned directory

   cd DryAgerEdgeDevice

3. Install npm packages

   npm install

4. Configure your dotenv file like in the configuration section

Usage

Dependencies

• dotenv: Environment variable management.
• express: Web server framework.
• mongoose: MongoDB object modeling tool.
• mqtt: MQTT client for Node.js.
• nodemon: Utility that automatically restarts Node.js applications when files change.
• onoff: GPIO access and interrupt detection with Node.js.

Configuration

• DB_STRING: Connection string for the local MongoDB server. Default is mongodb://localhost:27017/localRecords.
• MQTT_STRING: MQTT server URL.
• MQTT_USERNAME: Username for MQTT server.
• MQTT_PASSWORD: Password for MQTT server.
• DB_DOCKER: Connection string for MongoDB when using Docker. Default is mongodb://host.docker.internal:27017/localRecords.