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Elecrow

ThinkNode M2 Meshtastic (LoRa) Signal Transceiver Powered By ESP32-S3 With 1.3” OLED Display - no case

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Elecrow ThinkNode-M2 is a high-performance LoRa signal transceiver. It uses the ESP32-S3 module as the main processor and supports Bluetooth. Users can easi...

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Elecrow ThinkNode-M2 is a high-performance LoRa signal transceiver. It uses the ESP32-S3 module as the main processor and supports Bluetooth. Users can easily configure and monitor the device through their mobile phones. M2 is pre-installed with Meshtastic firmware and equipped with an SX1262 wireless chip, which can efficiently send and receive LoRa signals to ensure the reliability and stability of communication. In addition, M2 is perfectly compatible with the official Meshtastic App. Users can use the App to implement parameter configuration, message communication, map and location sharing, network status monitoring, data recording and export, and custom settings.
The built-in 1.3-inch OLED display can display data and device status in real-time, which is convenient for users to view at any time. Built-in 1000mAh rechargeable battery supports long-term outdoor use. The LoRa antenna supports multiple frequency options to optimize communication performance further. The device adopts a modular design to facilitate embedded integration and custom development.
With integrated LoRa communication technology, ThinkNode-M2 achieves efficient connection and data exchange between devices. Whether in remote areas where cellular networks are not available or in emergencies, M2 can be used as an independent communication tool to provide critical safety assurance. It is also suitable for low-cost information exchange and transmission and reception solutions between communities to meet diverse communication needs.


Feature
  • Thinknode M2’s firmware is adapted to the Meshtastic protocol, it can realize efficient and stable transmission and reception of Lora signals;
  • 1.3-inch OLED display screen for real-time viewing of data and device status;
  • Built-in 1000mAh lithium battery, it can Meet the needs of long-term outdoor use;
  • Adopts modular style, suitable for embedded solution product design;
  • Compatible with the Meshtatic official App. Users can use the App to configure and manage parameters of the M2 device, communicate messages, share maps and locations, monitor network status, record and export data, customize settings, etc.
  • Compact size, easy to carry and durable;
  • External LoRa antenna ensures the stability and efficiency of signal transmission;
Target Group
Outdoor enthusiasts, emergency responders, rural and remote residents, technology enthusiasts and developers, logistics and transportation companies, and community organizations.
 
Application
Outdoor adventure/Emergency communications/Community networking/Technology enthusiasts/Fleet management.

Specification
Main Processor(ESP32-S3 Module)
CPU/SoC | Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240MHz
System Memory | 512KB SRAM、8M PSRAM
Storage  | 4M Flash,384KB ROM
Firmware | Meshtastic firmware is fully compatible, and the signal is transmitted in LoRa mode
Display
Size | 1.3 inch
Display Materials | OLED
Resolution | 128*64
Driver Chip | SSH1106
Wireless Communication
WiFi | Support 802.11a/b/g/n, 2.4GHz
Bluetooth | Bluetooth Low Energy and Bluetooth 5.0
LoRa | SX1262 LoRa Transceiver、US 915MHz / EU 868MHz
Hardware 
Interface | Type-C Interface, IPEX antenna connector (internal), battery connector (internal)
Function | LCD display, USB2.0, PMU power management, USB to UART, buzzer, buck circuit, etc.
Button | Power button, Function button, Reset button, BOOT button
LED Indicator  | Power indicator, charging indicator
Other
Power Input | 5V/1A, supports USB or lithium battery power supply
Power consumption  | The maximum working power consumption is about 217mA, and the low power consumption is about 136mA (screen-off state)
Operating Temperature | -10~50°C 
Storage Temperature | -20~60 °C
Relative humidity | 10%-95%, @ 40°C (non-condensing)
Size | With Case:88.4*46*23mm; Without Case:51.5*37*9.5mm
Shell  | ABS Plastic
Net weight | 30g(Without case);50g(With case)
 

Package List
  • 1x ThinkNode M2 Transceiver Device
  • 1x USB-A to Type-C Cable
  • 1x User Manual
 

Wiki & External links

Jargon buster

Plain-language definitions for the technical terms used above.

ESP32
ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
LCD
LCD stands for liquid crystal display, a screen technology that uses a backlight and liquid crystals to show images or text. It matters because LCD modules usually need a display driver and enough controller pins or a bus interface to send image data.
LED
A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
LoRa
LoRa is a long-range, low-power radio technology often used for telemetry and remote sensors. It matters here because the connector and pinout are compatible with some LoRa telemetry products, even though this module uses Bluetooth instead.
OLED
OLED stands for organic light-emitting diode, a display type where each pixel produces its own light. It matters because OLED screens are thin, high-contrast and easy to read for small status displays, but they can be more sensitive to image burn-in than some other display types.
SRAM
Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
UART
UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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