Nano G2 Ultra - Meshtastic® Ready, Low Power, Wideband LoRa for Outdoor Adventures

Meshtastic Mesh Device Nano G2 Ultra - Low Power, Wideband LoRa for Outdoor Adventures

The Nano Series devices are engineered to be a portable and durable solution for outdoor adventures such as hiking, piloting, skiing, and more. They are designed to strike a balance between RF performance, size, ruggedness, and power efficiency, providing users with a reliable solution in various outdoor environments.

All Nano Series devices come with Meshtastic firmware pre-installed. You can find more details on firmware updates in the The Latest Firmware section below.

The primary design goal of the Meshtastic Mesh Device Nano G2 Ultra is to reduce power consumption and improve battery life by using the low-power MCU NRF52840 and optimizing the power-related designs. The typical battery life is optimized to be about 3.5 days. The Nano G2 Ultra and Nano G1 Explorer have exactly the same LoRa front-end circuit design and internal wideband LoRa antenna, which supports frequencies from 815 MHz to 940 MHz. This wideband antenna, combined with an optimized wideband LoRa RF frontend circuit, enables the Nano G2 Ultra to work with the majority of regions' LoRa frequency bands around the world without the need for antenna changes. The design of the Nano G2 Ultra also takes into account the potential effect of the human body on its antenna performance, ensuring optimal RF performance even when carried in a pocket.

Please Note: The Nano G2 Ultra prioritizes low power consumption and does not include built-in WiFi, which is a feature of the Nano G1 Explorer. These devices serve different primary needs within the Meshtastic ecosystem.

Key Features

• Portable and Durable Design: Engineered for outdoor adventures like hiking, piloting, and skiing.
• Optimized for Outdoor Use: Balances RF performance, size, ruggedness, and power efficiency.
• Pre-installed Meshtastic Firmware: Ready to use out of the box.
• Ultra-Low Power Consumption: Optimized for extended battery life (approximately 3.5 days).
• Wideband LoRa Support: Operates on frequencies from 815 MHz to 940 MHz, compatible with most global LoRa bands.
• Internal Wideband LoRa Antenna: No need for external antenna changes for different regions.
• Optimized RF Performance: Designed to maintain signal integrity even when carried in a pocket.
• NRF52840 MCU: Features a powerful and energy-efficient multiprotocol Bluetooth 5.4 SoC.
• GPS Integration: Includes an ATGM336H-5N Whole Constellation Positioning and Navigation Module.
• Real-Time Clock (RTC): Ensures accurate timekeeping with the NXP PCF8563.
• Enhanced Message Notification: Features a dedicated circuit and a new message LED indicator (Green).
• Optional External Battery: Supports an optional 3.7V 603450 Rechargeable Li-Polymer Battery via a JST 1.25mm connector.
• 1.3 Inch OLED Screen: For clear display of device information.
• User-Friendly Buttons: Includes power ON/OFF, LED/Buzzer switch, GPS ON/OFF, message read, and a user button.
• Durable Mechanical Design: Constructed with stacked PCB boards for a balance of cost and strength.
• Easy Firmware Updates: Supports drag-and-drop firmware updates via USB.

Power Consumption and Features Comparison

Typical RF Performance

The Nano G2 Ultra utilizes the same high-performing LoRa and GPS front-end circuit design as the Nano G1 Explorer. For detailed RF performance test data, please refer to the WIKI page of the Nano G1 Explorer.

Electrical Characteristics

Measurements taken with Lora TX Power = 22 dBm, two nodes in network.

Dimension

Specific dimensions were not provided in the text.

Hardware Overview

Switches/Buttons:

• Power ON/OFF Switch: For turning the device on and off.
• LED or Buzzer Switch: Selects between LED and buzzer for enhanced message notifications.
• GPS ON/OFF Switch: Enables or disables the GPS module.
• Message Read Button: Clears the new message LED indicator.
• User Button: A programmable button for custom functions.

Internal Components:

• Internal Bluetooth Antenna
• Real-Time Clock (RTC): NXP PCF8563
• 10 Pin FPC Connector (0.5mm Pitch): Provides access to I2C, 6 GPIOs, VCC3V3, and GND.
• Enhanced Message Notification Circuit and New Message LED Indicator (Green)
• Buck-boost converter: Texas Instruments(TI) TPS63051 (> 95% efficiency)
• Quad SPI 16Mbit Flash
• nRF52840: Multiprotocol Bluetooth 5.4 SoC
• 32MHz TCXO (+-1.5 ppm): DAISHINKU CORP. (KDS) 1XXD32000MBA
• RF Switch
• USB Type C Socket
• Battery Charging LED Indicator (Red)
• Battery Standby LED Indicator (Green)
• Reset Button for nRF52840
• Semtech SX1262 Lora Transceiver
• FPC Connector for OLED Screen
• Serial Wire Debug (SWD) Port for nRF52840
• JST 1.25mm Connector: For optional 3.7V 603450 Rechargeable Li-Polymer Battery
• Active Buzzer
• ATGM336H-5N: Whole Constellation Positioning and Navigation Module
• Internal Wideband Lora Antenna
• GPS Pulse Per Second (PPS) LED Indicator: Functional with external power.
• GPS Omni-directional Antenna
• 1.3 Inch OLED Screen

Mechanical Design

The Nano G2 Ultra features a stacked PCB board construction, similar to the Nano G1 Explorer, offering a cost-effective and mechanically sound design. An optional 3.7V 603450 JST 1.25mm Rechargeable Li-Polymer Battery can be installed.

Computer return policy: for development computers including Nano G2 Ultra, Raspberry Pi, Seeed reComputer, and Jetson Nano, if the factory seal has been broken or item has been used, units are non refundable except in cases of defect. If the item is unused, they can be returned for refund within 30 days of purchase. A fee up to $8 USD may be deducted to recover original shipping charges if free shipping was selected.