Geavio Hub2 User's Manual

Product Overview

The Gravio Hub 2 is a Linux-based smart IoT system powered by an ARM chip (rockchip3399) and featuring a built-in Zigbee 3.0 chip. This configuration allows it to be compatible with various Zigbee sensors available on the market, enabling the creation of a smart home environment. The hub can exchange and send commands in parallel with wireless sensors using hexadecimal code based on a serial protocol. Additionally, it incorporates WiFi and Bluetooth capabilities to facilitate communication with other devices.

Description: A circular white smart hub device with a small green LED indicator light.

Front View

The Gravio Hub 2 is designed for compactness and features a full-featured USB Type-C interface along with a button. This USB Type-C interface supports the PD power protocol, DP video protocol, and USB 3.1 standards. The device also includes a USB-A 2.0 port, an RJ-45 Ethernet port, and an HDMI port.

The Gravio Hub 2 supports the use of linked displays. Users can directly connect a dual-headed, full-protocol USB Type-C cable to a compatible display to activate the screen or use an extension. This connection allows the hub to power the display and access the integrated Ubuntu system. The hub also supports HDMI video output with up to 4K resolution. The USB 2.0 ports are available for input devices such as mice, keyboards, and U disks. A wired network interface is also provided for enhanced connectivity.

Wireless Instructions for Use

To begin, open a serial debugging assistant application, such as sscom. Configure the baud rate to 115200 and open the serial port with the 8N1 configuration (8 data bits, no parity, 1 stop bit). Send commands in hexadecimal format.

Example commands:

• >> send: 00 00 01 00 00 AA
• >> receive: 00 01 01 08 02 00 03 AA

Zigbee Network Commands

The following commands are used for interacting with the Zigbee network:

• Scan to build a Zigbee network:
  >> send: 00 00 03 00 00 AA
>> receive: 00 01 03 08 01 00 AA
• Read current network information:
  >> send: 00 00 04 00 00 AA
>> receive: 00 01 04 08 0E 36 3F 32 FE FF 9F FD 90 01 01 C0 76 0F 13 AA
• Open to allow devices to access the network:
  >> send: 00 00 10 00 01 FF AA
>> receive: 00 01 10 08 01 00 AA

Description: Screenshot of a serial debugging assistant software showing port settings (COM5, 115200 baud, 8 data bits, None parity, 1 stop bit, None flow control) and transmitted/received hex data.

Sensor Support

The Gravio Hub 2 supports various sensors:

Door and Window Sensor

Description: A pair of white magnetic contact sensors for doors and windows.

Commands for Door and Window Sensor:

• Near: >> near >> 00 1C 01 18 10 F9 68 04 02 00 8D 15 00 01 06 00 01 00 00 10 00 AA
• Far away: >> Far away>> 00 1D 01 18 10 F9 68 04 02 00 8D 15 00 01 06 00 01 00 00 10 01 AA

(Model: MCCGQ11LM)

Wireless Mini Switch

Description: A small, white, circular device with a single button.

Commands for Wireless Mini Switch:

• Press: >> press : 00 38 01 18 11 09 67 B0 02 00 8D 15 00 01 12 00 01 55 00 21 01 00 AA
• Long press: >> long press : 00 39 01 18 11 09 67 B0 02 00 8D 15 00 01 12 00 01 55 00 21 10 00 AA
• Long press release: >> Long press release: 00 3A 01 18 11 09 67 B0 02 00 8D 15 00 01 12 00 01 55 00 21 11 00 AA

Temperature and Humidity Sensor

Description: A white, circular smart sensor displaying a thermometer icon.

This sensor supports reporting temperature values, relative humidity, and atmospheric pressure. There are three types of reported data:

Commands for Temperature and Humidity Sensor:

• >> send: 00 40 01 18 11 6F FA 3C 02 00 8D 15 00 01 02 04 01 00 00 29 BD 0A AA
• >> send : 00 41 01 18 11 6F FA 3C 02 00 8D 15 00 01 05 04 01 00 00 21 02 22 AA
• >> send: 00 42 01 18 1A 6F FA 3C 02 00 8D 15 00 01 03 04 03 00 00 29 F2 03 14
• 00 28 FF 10 00 29 7D 27 AA

(Model: WSDCGQ01LM)

Static Post Sensor

Description: A white smart device with a distinctive wavy line pattern on its top surface.

There are three types of data reported by the static post, as follows:

• >> send data : 00 7A 01 18 15 FB 3B B2 02 00 8D 15 00 01 01 01 01 08 05 25 8A FF 1A 04 F9 00 AA
• >> send data : 00 7C 01 18 16 FB 3B B2 02 00 8D 15 00 01 01 01 02 55 00 21 02 00 03 05 21 06 00 AA
• >> send data : 00 7E 01 18 11 FB 3B B2 02 00 8D 15 00 01 01 01 01 55 00 21 01 00 AA

WiFi Instructions

WiFi is one of the important network communication functions of this machine. The link method is as follows: After booting into the system, as shown below.

Description: A computer desktop interface showing system icons (Trash, 1420AB7520A BSDOC) and the system taskbar with the time displayed as 13:59.

1.2.2 Select the WiFi name you want to link to

Description: A computer desktop interface displaying a network selection menu. The menu shows available Wi-Fi networks including "TELUS2410", "Boomer", "CHINAET-D3AK", "dlink", "Gawlenet", and "Gigaset4B6", along with options to connect to hidden networks or create new ones.

1.2.3 Connection Succeeded

Description: A pop-up window on the computer desktop requesting Wi-Fi network authentication for "ChinaNet-D3Ak". It includes fields for the password and buttons for "Cancel", "Connect", and "Show password". The taskbar indicates the time is 14:00.

Bluetooth Instructions

Bluetooth can be linked to other Bluetooth devices in the vicinity of the unit for data exchange and transmission. The steps are as follows:

1. Boot into the system

Description: A computer desktop interface showing system icons (Trash, 1420AB7520A BSDOC) and the system taskbar with the time displayed as 13:59.

1.2 Click on the Bluetooth icon in the lower right corner. After searching, the Bluetooth device will appear.

1.3 Select the Bluetooth device that needs to be matched. Both devices will display a confirmation message; click to confirm.

Description: A computer desktop interface displaying a "Bluetooth Pairing Request" pop-up for "OPPO A57" with an authentication code (446717). Below this, a "Bluetooth Devices" window lists the paired "OPPO A57" smartphone. The taskbar indicates the time is 13:59.

1.4 Click OK.

Description: A pop-up window on the computer desktop titled "Pairing Requested" asking to accept a pairing request from "OPPO A57". It includes "Cancel" and "OK" buttons.

1.5 Pairing success.

Description: A pop-up window on the computer desktop indicating "Pairing successful - creating connection...".

FCC Warning

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body.

The device for operation in the band 5150–5250MHz is only for indoor use.