GREE GRJWB05-J2 WIiFi and Bluetooth Module User Manual

GREE GRJWB05-J2 WIiFi and Bluetooth Module

Gree Electric Appliances, Inc. of Zhuhai

• Please read this manual carefully before operation and keep it well for future reference.
• Due to product improvement, Gree reserves the right to change contents of this manual without prior notice.
• Gree Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.

General Functions

The wireless module complies with IEEE 802.11 a/b/g/n standard and it can achieve up to a speed of 65Mbps with single stream in 802.lln, 54Mbps as specified in IEEE 802.lla/g, or 11Mbps for IEEE 802.llb to connect to the wireless LAN.This compact module is a total solution for a combination of Wi- Fi 802.11 a/b/g/n technologies with Microcontroller Processor. The main control chip of this module is highly integrated with Bluetooth low-power controller, with UART interface. It combines Bluetooth protocol, BLE baseband, MODEM and BLE RF-IN chips. It also supports GATT-based applications and MESH device applications based on BLE users, and supports Bluetooth 5.0 low power consumption.

This compact module is a total solution for a combination of Wi-Fi 802.lla/b/g/n technologies with Microcontroller Processor. The module is specifically developed for embedded system devices. Detailed Instruction of WiFi Module.

Technique Parameters

Table1. Module Parameters

FCC:2412 MHz to 2462 MHz for 802.11 b/g/n(HT40)
RED:2412 MHz to 2472 MHz for 802.11b/g/n(HT40)
2402MHz to 2480 MHz for BLE5G:
5810 MHz to 5825 MHz for 802.11 a/g/n(HT40)
Protocol| IEEE 802.11 a/b/g/n
frequency modulation mode| CCK, OFDM, GFSK
Receive Sensitivity| 802.11b<-90.5dBm@11Mbps
802.11a/g<-77.5dBm@54Mbps
802.11n<-72dBm@MCS7
Data Rate| WIFI:
802.llb: 1/2/5.5/11 Mbps
802.lla/g: 6/9/12/18/24/36/48/54 Mbps
802.11n(HT20):6.5/13/19.5/26/39/52/58.5/65 Mbps
802.1 ln ( HT 40): 13.5/2 7 / 40.5/54/81/108/121.5/135 Mbps
BLE rate: 1 Mbps
Antenna gain max| 1.5 dBi
| Impedance| 50-Ohm
electrical specification| Supply Voltage| +3.3V
Connect| Internal Antenna
physical| Dimensions| 37mmx17.7mm±0.2mm
Operating Temperature| —| -20-85 deg c.

Circuit Description

WIFI module has an independent power management system, and the system provides a high quality of power supply for the whole module. The Excellent matching circuit in RF-Front ensures that the signal has minimal signal loss and radiation. Oscillator Yl provides the IC U4 with the required oscillation frequency to enable the IC U4 to work normally. Flash U2 is used for the external expansion memory. The duplexer isolates the transmitting and receiving signals to ensure that the receiving and transmitting can work normally at the same time. The IC U4 provides the interfaces for a variety of peripherals (Timer, PWM, Interrupt, AD, the Debug) from the module to the baseboard. Each peripheral that connects to the MCU 1/0 pins can choose between two different 1/0 pin locations with the provided flexibility in various applications

Hereby, [Name of manufacturer], declares that this [type of equipment] is in compliance with the essential requirements and other relevant provisions of RE Directive 2014/53/EU. A copy of the full DoC is attached.
Transmit frequency of EU:
WIFI: 2412-2472 MHz / 5180-5825 MHz
BLE: 2402-2480 MHz
Maximum transmit power: <20dBm

Pin Definition

Table2. Pin Definition

FCC Statement

Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Second label must be place on the outside of the final device that contains the following text:
“Contains FCC ID: 2ADAP-GRJ WB05J2”
“Contains IC: 12478A-GRJ WB05J2”
The FCC ID/IC ID can be used only when all FCC/IC compliance requirements are met.

This device complies with Part 15 of the FCC Rules and it contains licence- exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). 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.

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.

FCC& IC Radiation Exposure Statement:

This equipment complies with FCC and Canada 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.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Gree Electric Appliances, Inc. of Zhuhai
Adresse:West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070

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