1. Introduction
The ThinkNode G3 is a high-performance, compact LoRaWAN gateway designed for Internet of Things (IoT) communications by Elecrow. It integrates an ESP32-S3 dual-core processor and a Semtech SX1262 transceiver, featuring a 240MHz dual-core main control. The gateway supports flexible network backhaul methods, including integrated Bluetooth, WiFi, and Ethernet. An optional 4G module is planned for future release.
The SX1262 transceiver, combined with an internal TCXO crystal oscillator, ensures ultra-long-distance transmission and high-frequency stability while maintaining low power consumption. It supports US915MHz, EU868MHz, and AU915MHz frequencies, enabling seamless conversion between LoRa and IP protocols for efficient reception of LoRa signals and transmission to the cloud across various networks.
The ThinkNode G3 offers a simple configuration interface accessible via mobile phone or PC, allowing users to easily adjust LoRa parameters and supporting remote firmware upgrades for improved deployment and maintenance efficiency. It supports development languages such as MicroPython and C/C++, and is compatible with ESP-IDF and Arduino IDE development environments, offering high flexibility for engineers and technology enthusiasts.
Designed with a modern smart home aesthetic, the ThinkNode G3 includes a multi-functional mounting base, supporting installation on walls, plates, or slide rails. Its versatile deployment options make it suitable for a wide range of applications, including smart cities, smart agriculture, industrial IoT, smart buildings, logistics management, and environmental monitoring, serving as a crucial hub in IoT communication architectures.
2. Features
- Adopts ESP32-S3 240MHz dual-core main control with Semtech SX1262 LoRa transceiver, supporting long-distance, low-power communication.
- Main frequency up to 240MHz, with 4M Flash and 384KB ROM storage.
- Internal TCXO crystal ensures accurate frequency and improves communication stability.
- Supports WiFi, Ethernet, and multiple backhaul methods for diverse network environments.
- Provides mobile phone/PC configuration interface for parameter adjustment.
- Supports remote firmware upgrades.
- Compact design integrates smart home aesthetics, equipped with a multi-functional mounting base for flexible deployment (walls, slides, etc.).
- Supports MicroPython, C/C++ development languages, compatible with ESP-IDF and Arduino IDE development environments.
- Low power consumption, with a maximum working current of approximately 110mA (MCU+LoRa transceiver).
- Realizes efficient conversion between LoRa and IP protocols, ensuring seamless interaction between devices and cloud data.
3. Package Contents
Verify that all items are present in your package:
Image: What's in the Box - ThinkNode G3 Gateway and accessories.
- 1x ThinkNode G3 LoRaWAN Gateway
- 1x USB-A to Type-C Cable
- 1x Mounting Base (referred to as 'Stand' in some documentation)
- 1x LoRa Rubber Stick Antenna
- 1x User Manual
4. Product Overview
The ThinkNode G3 features several ports and indicators for easy setup and monitoring:
Image: ThinkNode G3 Gateway with labeled components.
- LoRa Antenna Connector: RP-SMA connector for attaching the LoRa antenna.
- PWR Indicator: Power status indicator light.
- LoRa Indicator: LoRa communication status indicator light.
- LINK Indicator: Network link status indicator light.
- Reload Button: Used for device restart, debugging, and factory reset.
- USB-5V (Console) Port: Type-C port for power supply (5V/1A), debugging, and console access.
- ETH Port: RJ45 Ethernet port for 10/100Mbps wired network connection.
5. Specifications
Image: ThinkNode G3 LoRaWAN Gateway Specification Table.
| Category | Parameter | Description |
|---|---|---|
| Main Processor | CPU/SoC | ESP32-S3-WROOM-1-N8R8, Xtensa 32-bit LX7 dual-core processor |
| Frequency | Up to 240MHz | |
| System Memory | 512KB SRAM, 8M PSRAM | |
| Storage | 8M Flash, 384KB ROM | |
| Development Language | MicroPython, C/C++ | |
| Development Environment | ESP-IDF, Arduino IDE | |
| Network Configuration Interface | Self-developed web console with network and LoRaWAN server configuration, OTA upgrade | |
| Wireless Communication | WiFi | Support 802.11 b/g/n, 2.4GHz |
| Bluetooth | Bluetooth Low Energy and Bluetooth 5.0 | |
| LoRa | SX1262 LoRa Transceiver, US 915MHz/EU 868MHz/AU 915MHz (External antenna) | |
| 4G | 4G communication (LTE CAT1) (Not yet released, please stay tuned) | |
| Interface | Ethernet port | RJ45, 10/100Mbps |
| USB Interface | Type-C, debugging, power supply interface | |
| LoRa antenna interface | RP-SMA | |
| 4G antenna interface | RP-SMA (Reserve) | |
| Hardware | Reload Button | Device restart, debugging, and factory reset |
| Status Light | Power indicator, LoRa indicator, LINK indicator | |
| Software | Development Language | MicroPython, C/C++ |
| Development Environment | ESP-IDF, Arduino IDE | |
| Other | Power Input | 5V/1A, supports USB or lithium battery power supply |
| Power consumption | 110mA@5V (MCU+LoRa transceiver) | |
| Enclosure Material | ABS | |
| Installation Method | Back hanging, wall hanging, desktop | |
| Operating Temperature | -20~70°C | |
| Storage Temperature | -40~80°C | |
| Relative humidity | 10%-95%, @ 40°C (non-condensing) | |
| Dimensions & Weight | Size (L*W*H) | 75*75*30mm |
| Net Weight | 66g | |
| Gross Weight | 210g |
6. Setup Instructions
6.1 Physical Installation
- Attach LoRa Antenna: Carefully screw the provided LoRa Rubber Stick Antenna onto the RP-SMA connector on the gateway. Ensure it is finger-tight.
- Mounting: The ThinkNode G3 comes with a multi-functional mounting base. You can choose from several installation methods:
- Desktop Placement: Simply place the gateway on a flat surface using its base.
- Wall Hanging: Use appropriate screws (not included) to secure the mounting base to a wall, then attach the gateway.
- Slide Rail Mounting: The base is designed to be compatible with slide rails for industrial or specific setups.
Image: Compact design with multi-functional mounting base.
6.2 Power Connection
- Connect one end of the USB-A to Type-C Cable to the USB-5V (Console) port on the ThinkNode G3.
- Connect the other end of the USB cable to a compatible 5V/1A power adapter (not included) or a USB power source.
- Once powered, the PWR Indicator on the gateway should light up.
6.3 Network Connection
The ThinkNode G3 supports both WiFi and Ethernet for network backhaul.
- Ethernet Connection (Recommended for stability):
- Connect a standard Ethernet cable from your router or network switch to the ETH Port on the gateway.
- The LINK Indicator should light up, indicating an active network connection.
- WiFi Connection:
- For initial WiFi setup, you will typically connect to the gateway's own WiFi hotspot or access its web configuration interface via a wired connection.
- Refer to the 'Operating Instructions' section for details on configuring WiFi settings.
Image: Flexible network backhaul via WiFi and Ethernet.
7. Operating Instructions
7.1 Initial Configuration and Management
- Access Configuration Interface: The ThinkNode G3 features a self-developed web console for configuration. You can access this interface from a mobile phone or PC connected to the same local network as the gateway (or directly to its WiFi hotspot during initial setup). The specific IP address or URL for the web console will be provided in the detailed user manual or wiki.
- Network Settings: Within the web console, you can configure:
- WiFi SSID and Password: To connect the gateway to your wireless network.
- Gateway ID: Unique identifier for your LoRaWAN gateway.
- LoRaWAN Server Address and Port: Details for connecting to your chosen LoRaWAN Network Server (e.g., The Things Stack, ChirpStack).
Image: Intelligent configuration and management via web interface.
- LoRaWAN Frequencies: Ensure the gateway is configured for the correct LoRaWAN frequency band for your region (US 915MHz, EU 868MHz, or AU 915MHz). This is critical for proper LoRa communication.
7.2 Indicator Lights
Monitor the status of your gateway using the indicator lights:
- PWR (Power): Indicates the device is powered on.
- LoRa: Indicates LoRa communication activity.
- LINK (Network Link): Indicates active network connectivity (Ethernet or WiFi).
7.3 Reload Button Functionality
The Reload button serves multiple purposes:
- Short Press: Initiates a device restart.
- Long Press (e.g., 5-10 seconds): May trigger debugging mode or factory reset, depending on firmware. Refer to the detailed user manual for exact procedures.
7.4 Network Topology
The ThinkNode G3 facilitates efficient conversion between LoRa and IP protocols, ensuring seamless interaction between LoRa end devices and cloud data platforms. It acts as a bridge, receiving LoRa signals and forwarding them over IP networks (WiFi or Ethernet) to your chosen LoRaWAN Network Server.
Image: Network Topology Diagram.
8. Maintenance
8.1 Firmware Upgrades
The ThinkNode G3 supports remote Over-The-Air (OTA) firmware upgrades. Regularly check the official ELECROW website or product Wiki for the latest firmware versions to ensure optimal performance, security, and access to new features. Follow the instructions provided with the firmware update package carefully.
8.2 Cleaning
To clean the device, use a soft, dry cloth. Do not use liquid cleaners, aerosols, or solvents, as these may damage the casing or internal components.
8.3 Environmental Conditions
Ensure the gateway operates within the specified temperature (-20~70°C) and humidity (10%-95%, non-condensing) ranges to prevent damage and ensure reliable operation.
9. Troubleshooting
- No Power (PWR Indicator Off):
- Check if the USB-C cable is securely connected to both the gateway and the power source.
- Ensure the power adapter provides 5V/1A. Try a different power adapter or USB port.
- No Network Connection (LINK Indicator Off/Flashing):
- For Ethernet: Verify the Ethernet cable is properly connected to both the gateway and your router/switch. Check your router's status.
- For WiFi: Access the web configuration interface and verify the WiFi SSID and password are correct. Ensure the gateway is within range of your WiFi network.
- Restart the gateway using a short press of the Reload button.
- LoRa Communication Issues (LoRa Indicator Inactive):
- Ensure the LoRa antenna is securely attached to the RP-SMA connector.
- Verify that the gateway is configured for the correct LoRaWAN frequency band for your region (US915MHz/EU868MHz/AU915MHz).
- Check the LoRaWAN Network Server settings in the web console (address, port, Gateway ID).
- Device Unresponsive / Cannot Access Web Console:
- Perform a short press on the Reload button to restart the device.
- If restarting doesn't help, consider a factory reset using a long press of the Reload button (refer to the detailed user manual for exact timing to avoid accidental reset).
- Ensure your computer or mobile device is connected to the same network as the gateway.
10. User Tips
- Explore the Wiki: For advanced configurations, development resources (MicroPython, C/C++, ESP-IDF, Arduino IDE), and community support, refer to the official Elecrow Wiki and external links. These resources often contain detailed guides and examples for specific use cases.
- Optimal Antenna Placement: For best LoRa signal reception and transmission range, ensure the LoRa antenna is placed in an open area, away from obstructions and metallic surfaces.
- Regular Firmware Updates: Keep your gateway's firmware updated to benefit from performance improvements, bug fixes, and new features.
11. Warranty and Support
For technical support, warranty information, and further assistance with your ThinkNode G3 LoRaWAN Gateway, please contact ELECROW customer service through their official website or the platform where you purchased the device. Always refer to the official product documentation and support channels for the most accurate and up-to-date information.
Additional resources, including a detailed Wiki and User Manual, may be available online. Please check the product page or Elecrow's support portal for links to these resources.
