Elecrow ThinkNode M4 Power Bank - LoRa Device with Meshtastic Function Powered By nRF52840

Elecrow ThinkNode M4 Power Bank - LoRa Device with Meshtastic Function Powered By nRF52840

ThinkNode M4 is a groundbreaking multifunctional power bank that not only continues the portable power support function of traditional power banks, but also innovatively integrates Meshtastic communication module, LoRa long-distance wireless communication technology and a high-precision GPS module, providing users with a new decentralized communication and positioning solution.

As a Meshtastic device, it provides users with high-precision, low-power positioning and communication solutions.

It has built-in Semtech's LR1110 (supporting 868-915 MHz frequency band), Nordic's nRF52840 and GPS modules to ensure the performance and reliability of the device. Meshtastic devices support distributed Mesh networks without relying on gateways or the Internet. Devices are nodes to each other and can automatically expand coverage. It supports two-way communication, including real-time text messaging and location sharing, and can meet diverse communication needs, whether it is point-to-point or broadcast communication. Meshtastic is particularly suitable for field operations, disaster emergencies, and other network-free environments, providing users with stable and reliable communication guarantees.

User Manual / Datasheet / Example Codes Etc.

Features

• Supporting the Meshtastic protocol, M4 realizes low-power and long-distance wireless communication.
• Support LoRa long-distance transmission, integrated LoRa module, and support long-distance communication.
• Decentralized network: Supports multi-device networking, users can build an independent communication network through M4 to achieve seamless connection and information sharing between devices.
• Real-time positioning: Built-in high-sensitivity GPS module, supports real-time positioning and track recording, helping users to accurately navigate in outdoor environments.
• Location sharing: Through the Meshtastic/LoRaWAN network, users can share location information in real time
• Long battery life: Low power consumption design ensures that the communication module will not consume excessive power during long-term use, balancing the dual needs of communication and power support.
• Large-capacity battery and fast charging support: Built-in high-energy-density lithium polymer battery, supports fast charging and reverse charging, and meets the power needs of various devices.
• Compatible with multiple devices: Supports multiple interfaces such as USB-C, and is compatible with various electronic devices such as smartphones, tablets, GPS devices, cameras, etc.
• Intelligent power management, built-in smart chip, real-time monitoring of battery status, providing multiple protections such as overcharge, over-discharge, short circuit, etc.
• Integrated design: The power bank, communication module, and GPS module are perfectly integrated, with a small size, easy to carry, simple operation and no complicated settings.
• Built-in Sensor: Temperature and humidity sensors and a six-axis gyroscope can detect motion and ambient temperature. 
• Safety and reliability. Made of high-strength shell material, it is waterproof, dustproof and shockproof, and can adapt to various harsh environments.
• Multi-functional application scenarios: Outdoor adventures such as deep mountains, jungles or deserts without signals, or emergency situations such as natural disasters or emergencies, or community network construction, M4 can achieve low-cost and high-reliability information transmission

Specifications

• Fast charging protocol
• PPS output
• QC2.0 output, QC3+/QC3.0 output
• PD3.1 input/output
• SCP/FCP/AFC input/output
• Integrated: High-precision electricity meter
• Switch charging: Support single-cell charging, including trickle current, constant current, constant voltage,charge cutoff,and recharge complete charging cycle management;
• Synchronous Boost: Output power up to 22.5W;

LoRa Communication

• CPU/SoC: nRF52840-QIAA (Nordic)
• System Memory: 256 KB RAM
• Storage: 3 MB Flash memory (external 2M Flash chip)
• Firmware: Meshtastic firmware compatible, LoRa Tracker function compatible(Optional)
• LoRa Transceiver: Semtech LR1110
• Charge and discharge function (charge three units at the same time)
• Type-C port: Input: 5V/3A, 9V/2A, 12V/1.5A
• Type-C Cable
• Discharge function: Output: 5V/3A, 9V/2A, 12V/1.5A
• Wireless charging
• Discharge function: Output: 5W, 7.5W, 10W, 15W
• Charging time: 3~4 Hour
• Wireless Communication
• Bluetooth: Bluetooth Low Energy and Bluetooth 5.4, internal antenna (phone configuration)
• LoRa: LR1110 LoRa Transceiver, US 915MHz / EU 868MHz (Internal antenna）
• Battery
• Type: 18650 Lithium-ion Battery
• Nominal capacity: 7000mAh (can be taken on airplanes)
• Power: 3.6V/25.2Wh
• Rated capacity: 3800mAh (5V/3A)
• Conversion Rate: More than 74%
• Size: 87.3*67.7*28mm

Package Includes

• 1x ThinkNode M4 Power Bank for Meshtastic
• 1xCharging Cable
• 1x USB to USB-C Converter

Hardware Overview