Introduction

What is GroPoint Air

The Dragino GroPoint is a LoRaWAN Multi Soil Segment Converter for IoT of Agriculture. It is designed to connect to GroPoint Profile Multi-depth Soil moisture and temperature profile Sensor and get GroPoint Profile’s reading and send it to IoT server via LoRaWAN wireless network.

GroPoint Profile is plug-and-play with GroPoint Air to get soil moisture and send via wireless. GroPoint Profile is powered by GroPoint Air, no need external power source.

The LoRa wireless technology used in GroPoint Air allows devices to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

GroPoint Air is powered by an 8500mAh Li-SOCI2 battery, it is designed for long-term use for up to 5 years.

Each GroPoint Air is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to the local LoRaWAN server and it will auto-connect after power on.

Features

• LoRaWAN 1.0.3 Class A
• Ultra-low power consumption
• Supports GroPoint Profile
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• AT Commands to change parameters
• Uplink on periodically
• Downlink to change configure
• IP66 Waterproof Enclosure
• 8500mAh Battery for long term use

Probe Specification

GroPoint Air includes an M12 5-pin connector, the pins definition matches GroPoint Profile M12 version probes. Users can connect this connector to GroPoint Profile directly.

GroPoint Profile includes a series of multi-depth soil moisture and temperature sensors. The specification for GroPoint Profile can be found here: https://www.gropoint.com/products/soil-sensors/gropoint-profile

Applications

• Smart Agriculture

Pin Mapping

Inner PCB Pin mapping for reference:

Use AT Command

Access AT Commands

GroPoint Air supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to GroPoint Air for using AT command, as below.

Connection:

 USB TTL GND <----> GND

 USB TTL TXD  <----> UART_RXD

 USB TTL RXD  <----> UART_TXD

In the PC, you need to set the serial baud rate to 9600 to access the serial console for GroPoint Air. GroPoint Air will output system info once power on as below:

Valid AT Command please check Configure Device.

FAQ

How to change the LoRa Frequency Bands/Region

You can follow the instruction here: how to upgrade image.
When downloading the images, choose the required image file for download. ​

Trouble Shooting

AT Commands input doesn’t work

In case if user can see the console output but can’t type input to the device. Please check if you already include the ENTER while sending out the command. Some serial tool doesn’t send ENTER while pressing the send key, user need to add ENTER in their string. 

Order Info

Part Number: GROPOINT AIR-M-XX

XX: The default frequency band

• AS923: LoRaWAN AS923 band
• AU915: LoRaWAN AU915 band
• EU433: LoRaWAN EU433 band
• EU868: LoRaWAN EU868 band
• KR920: LoRaWAN KR920 band
• US915: LoRaWAN US915 band
• IN865: LoRaWAN IN865 band
• CN470: LoRaWAN CN470 band

​Packing Info

Package Includes:  

• GroPoint Air-M x 1

Dimension and weight:

• Device Size: cm
• Device Weight: g
• Package Size / pcs : cm
• Weight / pcs : g