Hardware Project Overview

FastBee-Arduino is an open-source IoT firmware framework for ESP32-series chips. Through zero-code visual configuration, it turns ESP32 boards into versatile IoT devices.

Case Studies

Below are real-world applications of FastBee-Arduino on different chips and hardware platforms.

ESP32-C6 Dev Board Blink Quick Start

Flash firmware and run an LED blink test in under 5 minutes with the ESP32-C6 board.

ESP32-C3 Dev Board Temperature & Humidity Monitoring

Collect ambient temperature and humidity via DHT11, display on OLED, and trigger alarm rules on threshold breach.

ESP32 Device Modbus Monitoring and Control

ESP32 IoT terminal collects Modbus RTU slave data via RS485 for industrial sensor monitoring and remote control.

ESP32-S3 ECM50-A Device 4G / Ethernet / WiFi Networking

ESP32-S3-based ECM50-A industrial device supporting automatic failover across 4G cellular, W5500 Ethernet, and WiFi.

ESP32 PuZhong Dev Board Feature Testing

Comprehensive peripheral testing on the PuZhong ESP32 board covering GPIO, ADC, PWM, I2C, SPI, UART, and displays.

ESP32-S3 WaveShare Device

WaveShare ESP32-S3 board validation covering WiFi, sensor acquisition, display driving, and MQTT reporting.

See the Examples directory for more case studies.

Background

With the rapid growth of IoT, demand for edge-computing devices is surging. Traditional embedded development faces two key challenges:

• High barrier to entry: Requires expertise in C/C++, hardware drivers, and network protocols
• Slow deployment: Every feature change requires recompilation and reflashing, increasing on-site maintenance cost

Although ESP32 chips are feature-rich, they are resource-constrained (520 KB SRAM, 4 MB Flash). Traditional IoT frameworks often consume too many resources, leading to instability.

FastBee-Arduino was born from a zero-code, visual configuration philosophy—every setting is done through the built-in Web interface, achieving true "flash and go."

Goals

• Zero-code development: Configure peripherals, protocols, and rule engines entirely from the browser
• Resource optimization: Lite / Standard / Full tiered architecture prioritizes system stability
• Rapid deployment: From flashing to cloud connectivity in just 5 steps
• Open ecosystem: AGPL-3.0 license with support for custom peripheral drivers and protocol extensions — source code at gitee.com/beecue/fastbee-arduino

Core Features

Browser-Based Console

• Device monitoring, peripheral configuration, protocol setup, and rule editing all in the local Web UI
• Responsive design for PC, tablet, and mobile
• Automatic AP mode on first boot—no extra tools required

Multiple Networking Options

• WiFi (all editions): AP/STA dual mode, mDNS domain access
• Ethernet (Standard/Full): W5500 SPI interface
• 4G Cellular (Standard/Full): EC801E-CN module
• LoRa Gateway (Full): E22-400T22D transparent transmission

Integrated Protocols and Peripherals

• Protocols: MQTT; Standard/Full editions add Modbus RTU master, register mapping, and sub-device control
• Peripherals: GPIO, sensors, displays, digital tubes, RS485/UART, and 25+ types
• Rule Engine: 4 trigger types, 27 action types with timer/event/platform/polling triggers

Field-Ready Stability

• AP/STA automatic failover and reconnection
• Memory guard (MEMGUARD) for low-memory degradation protection
• On-demand loading and lightweight first screen
• Pre-created Worker pool to avoid runtime allocation

Clear Resource Tiers

• Lite: ESP32-C3/C6/S2 low-cost nodes—WiFi/MQTT, mDNS, basic Web, OLED/TM1637, config import/export
• Standard: ESP32/ESP32-S3 mainline firmware—adds Ethernet, 4G, Modbus, I2C/RFID/IR
• Full: ESP32-S3 only—adds OTA, files/logs, multi-user, RuleScript, multilingual UI, LoRa

Tech Stack

Layer	Technology	Notes
Hardware	ESP32 / ESP32-C3 / ESP32-S3	Dual-core 240 MHz, WiFi/BT/BLE
Framework	Arduino + PlatformIO	Rapid development, multi-env build
Communication	WiFi / BLE / MQTT / Modbus RTU	Multi-protocol support
Web Server	ESPAsyncWebServer	Async HTTP server
Frontend	Vanilla JavaScript	No framework dependency, lightweight
File System	LittleFS	Embedded Flash file system
Build Tools	Node.js + PlatformIO	Web asset compression, firmware compilation

Edition Tiers

FastBee-Arduino comes in three editions: Lite, Standard, and Full. See the Edition Comparison for feature boundaries, chip compatibility, resource limits, and selection guidance.

Application Scenarios

FastBee-Arduino is suitable for a wide range of IoT scenarios. The case-study cards above showcase typical hardware platforms and applications. Main categories:

• Smart Home: Temperature/humidity monitoring, lighting control, door/window alarms
• Industrial Data Acquisition: Modbus RTU collection, current/voltage monitoring, multi-device polling
• Agricultural IoT: Soil/environment sensing, automated irrigation control
• Education Labs: 54 examples covering common sensors—zero-code config to focus on learning
• Field Terminal Deployment: Flash-and-go, remote Web configuration, batch config import/export

Related Documentation

• Online Flasher — Flash firmware directly from the browser
• Quick Start — Complete first-time setup in 5 steps
• Examples — 54 sensor and module configuration examples
• User Manual — Complete operation manual
• Architecture — System architecture and module relationships
• Core Framework — Key components and classes
• Development — Environment setup and contribution guidelines
• Source Code — Gitee repository for downloading and browsing the source

For the full Chinese source page, see 项目概述.

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