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
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)
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 low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
- 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 (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- LoRa
- LoRa is a long-range, low-power wireless radio technology often used for telemetry, remote sensors and other links that send small amounts of data over long distances. It is distinct from Bluetooth and WiFi, so sharing a connector or pinout with LoRa hardware does not mean a device actually uses LoRa.
- 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.
- Type-C
- USB Type-C (USB-C) is a small, reversible USB connector used for charging, power, and data transfer on many modern devices. A Type-C port or plug indicates the cable and charger connection needed to power, charge, or communicate with a device.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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