ThinkNode M7 Meshtastic LoRa 868 MHz ESP32-S3 PoE Ethernet Gateway by Elecrow

Summary

The Elecrow ThinkNode M7 is a plug-and-play indoor LoRa gateway, specifically designed for the Meshtastic mesh network. Ideal for ham radio operators, emergency communications enthusiasts, and tech enthusiasts, this compact device connects a local, off-grid radio network to the Internet via Ethernet or Wi-Fi while offering simplified power delivery via a PoE network cable.

Key Features

• Dual power connectivity: Operates via standard USB-C (5V) or directly through the Ethernet port using IEEE 802.3af PoE support (37V–57V), perfect for discreet installation in the attic or on a wall without a nearby outlet.
• Powerful ESP32-S3 & LR1110 architecture: Equipped with a dual-core microcontroller clocked at 240 MHz, backed by 8 MB of PSRAM and 4 MB of Flash, ensuring maximum fluidity when processing mesh routing packets and MQTT streams.
• Excellent radio range: Remarkable LoRa sensitivity down to -139 dBm (@SF12) combined with a transmission power of +22 dBm and a dedicated 4 dBi antenna to cover 8 to 10 km outdoors.
• Plug-and-play: Official Meshtastic firmware pre-installed at the factory for immediate Bluetooth pairing via the smartphone app (iOS/Android) or via the web interface.
• Quick and secure mounting: Comes with a quarter-turn wall-mount bracket that allows you to clip and lock the unit securely to any surface.

Technical Specifications

• Model: ThinkNode M7 (Meshtastic Edition)
• Manufacturer: Elecrow
• Main processor: ESP32-S3 Xtensa® 32-bit LX7 dual-core up to 240 MHz
• Memory: 512 KB SRAM, 8 MB PSRAM, 4 MB Flash, 384 KB ROM
• LoRa RF chip: Semtech LR1110
• LoRa frequency band: EU 868 MHz / US 915 MHz (preconfigured 868 MHz version for Europe)
• LoRa TX power: Up to +22 dBm
• LoRa sensitivity: -125 dBm (@125 kHz, SF7), -139 dBm (@125 kHz, SF12)
• Theoretical range: 8 to 10 km in line of sight
• Wi-Fi: 802.11 b/g/n (2.4 GHz)
• Bluetooth: Dual-mode Bluetooth-BR/EDR + Bluetooth Low Energy (BLE 5.0)
• Network connectivity: 10/100 Mbps RJ45 Ethernet port (WAN/LAN), PoE-compatible
• Power supply: USB Type-C 5V / 1A or IEEE 802.3af PoE (DC 37V–57V)
• Antenna connectors: 2x RP-SMA female (1x LoRa + 1x Wi-Fi/BLE)
• Included Antennas: 4 dBi external LoRa antenna, 4 dBi external WLAN/BT antenna
• LED indicators: Power (PWR), LoRa signal, Bluetooth status
• Housing dimensions: 75 x 75 x 30 mm (excluding antennas) / 74 x 74 x 33 mm with base
• Net weight: 80 g (unit only) / 108 g (with accessories)
• Operating temperature: -20°C to +70°C
• Development environment: Compatible with Meshtastic App, ESP-IDF, Arduino IDE, MicroPython

Compatibility

• Meshtastic Ecosystem: Compatible with all Meshtastic nodes (T-Beam, T-Echo, Heltec V3, Station G2, etc.) on the 868 MHz band.
• IP Networks & Gateways: Connects to standard RJ45 Ethernet routers and switches, as well as PoE switches/injectors (IEEE 802.3af standard).
• Application Operating Systems: Meshtastic app for Android, iOS, Meshtastic web client (HTTP/Web Bluetooth/Serial).
• RF Connectors: Female RP-SMA connectors (for male RP-SMA cables or antennas).

FAQ