Meshtastic Mesh Device Nano G2 Ultra

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[Click Here for An Overview and Comparison Table of our Products for Meshtastic ]

About Meshtastic: https://meshtastic.org/docs/about

Meshtastic Youtube Channel: https://www.youtube.com/meshtastic

Meshtastic Frequency Bands Supported by Nano G2 Ultra

US (902.0Mhz to 928.0Mhz), EU_868 (869.4Mhz to 869.65Mhz), JP (920.8Mhz to 927.8Mhz), ANZ (915.0Mhz to 928.0Mhz), RU (868.7Mhz to 869.2Mhz), KR (920.0Mhz to 923.0Mhz), TW (920.0Mhz to 925.0Mhz), IN (865.0Mhz to 867.0Mhz), NZ_865 (864.0Mhz to 868.0Mhz), TH (920.0Mhz to 925.0Mhz), UA_868 (868.0Mhz to 868.6Mhz).

Overview

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.

The primary design goal of the Meshtastic Mesh Device Nano G2 Ultra is to reduce power consumption and improve battery life (Battery is NOT Included, Battery Information) by using the low power MCU NRF52840 and optimizing the power relatived designs. The typical battery life is optimized to be about 5 days. 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. The 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.

Power Consumption and Features Comparison of Nano G2 Ultra and Nano G1 Explorer

Editions	Nano G2 Ultra	Nano G1 Explorer
Core Research Areas	Low Power Design	Human Body Near Antenna (HBN) Wideband High Radiation Efficiency Planar Antenna and RF Front-end Design
Photo
Product Status	ACTIVE	ACTIVE
Current Hardware Version	22 Sep 2023	06 Mar 2023
Lora RF Max Output Power	Up to 22 dBm	Up to 22 dBm
LoRa Transceiver	SX1262	SX1262
Lora Operation Frequency	Wideband from 815 Mhz to 940 Mhz	Wideband from 815 Mhz to 940 Mhz
MCU	NRF52840	ESP32
WIFI	–	YES
Bluetooth	v5.4	v4.2
Satellite Navigation	GPS, BDS	GPS, BDS
Real-Time Clock (RTC)	NXP PCF8563	–
USB Connector	Type C	Type C
Screen	1.3 Inch OLED Screen	1.3 Inch OLED Screen
Battery	Optional 3.7V 603450 JST 1.25mm Rechargeable Li-Polymer Battery  (Battery is NOT Included, Battery Information)	Optional 3.7V 603450 JST 1.25mm Rechargeable Li-Polymer Battery  (Battery is NOT Included, Battery Information)
Power Input Socket	USB Type C, JST 1.25mm Connector for Rechargeable Li-Polymer Battery	USB Type C, JST 1.25mm Connector for Rechargeable Li-Polymer Battery
LoRa Antenna	Build In Wideband PCB Antenna	Build In Wideband PCB Antenna
Accessories	Build In 10 Pin FPC Connector (0.5mm Pitch, 1x I2C, 6x GPIO, VCC3V3 and GND) Optional I2C Extension Board (1x GROVE I2C Socket and 1x SparkFun QWIIC I2C Socket for Sensors and Keyboard)	–
Typical Average Power Consumption	14.24 mA @ 4.3V (Lora TX Power = 22 dBm, GPS OFF, Screen OFF, Two Nodes in Network)	70.50 mA @ 4.3V (Lora TX Power = 22 dBm, GPS Low Power Mode, Screen OFF, Two Nodes in Network)
Typical Scenarios	Hiking, Pilot, Skiing, Work with the majority of regions’ LoRa frequency bands around the world without the need for Antenna changes. The typical battery life is optimized to be about 5 days (For Hardware Version 22 Sep 2023 or Later).	Hiking, Pilot, Skiing, Work with the majority of regions’ LoRa frequency bands around the world without the need for Antenna changes. The typical battery life is optimized to be about 16 Hours.

In general, Nano G2 Ultra is not designed to replace Nano G1 Explorer, Nano G2 Ultra focuses on low power, and Nano G1 Explorer supports WIFI.

Typical RF Performance

Electrical Characteristics

The Latest Firmware

Meshtastic Mesh Device Nano G2 Ultra had been supported by the official meshtastic repository on Github from firmware version 2.x.xx.xx. Thus, the latest firmware could be downloaded from the meshtastic project’s releases page:

https://github.com/meshtastic/Meshtastic-device/releases

Firmware file: firmware-nano-g2-ultra-2.x.x.xxx.uf2

The Fimware could be updated by Drag & Drop.

Mechanical Design

Accessories

Optional I2C Extension Board [Installation Instructions]

The I2C Extension Board has two I2C sockets, which are used to connect GROVE, Adafruit STEMMA QT and SparkFun QWIIC devices. These two I2C sockets are based on the 10 Pin FPC Connector of Nano G2 Ultra.

Meshtastic supported I2C devices

(Keyboard and Sensors are NOT Included)

Telemetry Module

Supported sensors connected to the I2C bus of the device will be automatically detected at startup. Environment Telemetry and Air Quality must be enabled for them to be instrumented and their readings sent over the mesh.

More Information: https://meshtastic.org/docs/settings/moduleconfig/telemetry

Canned Message Module

Canned Message Module, I2C Extension Board and M5Stack CardKB can turn Nano G2 Ultra into a stand-alone device, which can send and receive messages without a mobile phone.

• M5Stack CardKB
  The CardKB is fully supported in freetext mode and select mode. Use UP/DOWN/ENTER to select a predefined message and send it. For a freetext message, just type it in and press ENTER to send it.
  If you don’t want to broadcast your freetext message, you can use the CardKB to send it to a specific node. Just press TAB and select the target node with the LEFT/RIGHT keys. The message will be sent to the node with the matching name and node number. The target node will be remembered for your next message.

More Information: https://meshtastic.org/docs/settings/moduleconfig/canned-message#cardkb

APP Screenshots

Additional Information

• Firmware
• Android APP
• iOS APP
• Meshtastic Home Page