FCC ID: 2A6QWMR-BLE001 Intelligent Bluetooth module

User Manual 1. Features MR-BLE001 is a small-sized, low-cost Bluetooth BLE standard transparent transmission module developed by Zhijian Internet. The module supports BLE (Up to Bluetooth 5.0). The built-in 512kB FLASH supports dynamic stack and protocol profile configuration, and product functions can be configured through software, providing ultimate flexibility. Both hardware OTA upgrades and multi-boot switching are supported, allowing for convenient product feature rollouts and upgrades. The module features are as follows Built-in high performance 32-bit MCU RSIC @48M 512KB Flash32KB SRAM Compliant with Bluetooth 5.0, RF link data up to 2Mbps transmit power:

5.94dBm Support UART interface, expand all I/O ports of the chip Support APP parameter configuration Stamp hole pin + 4pin terminal interface, easy and reliable welding Ultra-small package: 23x12.6mm, board thickness 1.0mm Working temperature: -40~+85 The MR-BLE001 module only needs to connect VCC, GND, TX, RX four wires to complete the data transparent transmission function; it can also be applied to many small-sized accessories or fitness products through the stamp hole. It can easily realize the interconnection of users' Bluetooth devices, data transmission and other various applications. Smart jump rope, abdominal wheel and other fitness accessories Smart treadmill, spinning bike and other fitness equipment 1.1 Application field Smart Home Products Industrial control equipment 2 Electrical Specifications Rated parameters Item Symbol Min Typical Max Unit Input voltage 4pin VCC1 3.1 3.3 12.5 Input voltage VCC2 2.8 Serial port voltage TX/RX 3.0 3.0 3.6 3.3 V V V storage temperature T-STR

-65 25 150 Soldering T-SLD 260 temperature Notice:

1) The listed electrical characteristics are target specifications and are for reference only. Some data may be updated based on actual testing. 2) The voltage values shown are based on the GND inside the module. Any voltage exceeding the "Maximum Ratings" may cause permanent damage to the device. Working current Item Symbol Min Typical Max Unit RX current Irx TX current Itx sleep state Istandby 5.3 4.8 1.2 Note: Power consumption test conditions: Whole Module Working @0dBm With DCDC enable RF parameters Range Item Symbol Min Typical Max Frequency Freq. 2402

2480 data rate BLE/2.4G Proprietary 1Mbps, 250kHz deviation BLE/2.4G Proprietary 2Mbps, 500kHz deviation mA mA uA Unit MHz 3. Foot Decription Interface decription Pin # Name Type Description VCC2 GND PWR 3.0V Powered PWR ground pin 1 2 3 4 PWM4 output / UART_TX / Antenna PB1_UTX I/O select pin 2 / Low power comparator input / SAR ADC input / GPIO PB[1]

SWS I/O Single wire slave/ UART_RTS / GPIO PA[7]

5 PA1 I/O clock /

6 PA0_URX I/O DMIC clock / UART 7816 clock / I2S GPIO PA[1]

DMIC data input / PWM0 inverting output / UART_RX / GPIO PA[0]

SPI clock (I2C_SCK) / I2S bit clock /

7 PD7 I/O UART 7816 TRX (UART_TX) / GPIO 8 PD4 I/O output / PWM2 inverting output /

Single wire master / I2S serial data 9 PD3 I/O input / UART 7816 TRX (UART_TX) /

PWM1 inverting output / I2S serial data PD[7]

GPIO PD[4]

GPIO PD[3]

10 PD2 I/O right channel SPI chip select (Active low) / I2S left select / PWM3 output / GPIO PD[2]

SDM positive output 0 / PWM4 output Low power comparator input /

SAR ADC input / GPIO PB[4]

11 PB4 I/O

12 PB5 I/O

13 PB6 I/O 14 PB7 I/O SDM negative output 0 / PWM5 output Low power comparator input /

SAR ADC input / GPIO PB[5]

SDM positive output 1 / SPI data input

(I2C_SDA) / UART_RTS / Low power comparator input /

SAR ADC input / GPIO PB[6]

SDM negative output 1 / SPI data output / UART_RX / Low power comparator input /

SAR ADC input / GPIO PB[7]

I2C serial data / PWM4 inverting positive input / GPIO PC[0]

I2C serial clock / PWM1 inverting output / PWM0 input /

GPIO PC[1]

15 PC0_SDA I/O output / UART_RTS / PGA left channel 16 PC1_SCL I/O output / PGA left channel negative 17 PC2 I/O PWM0 output / UART 7816 TRX

(UART_TX) /

I2Cserial data / (optional) 32kHz crystal output / PGAright channel positive input / GPIO PC[2]

PWM1 output / UART_RX / I2C serial clock / (optional)32kHz crystal input /

PGA right channel negative input /

18 PC3 I/O 19 PC4 I/O inverting output / SAR ADC input /

PWM2 output / UART_CTS / PWM0 GPIO PC[3]

GPIO PC[4]

20 RST RESET Power on reset, active low 4. Module Measurement 5. Reference PCB Package The Bluetooth operating frequency is 2.4GHz, and the influence of various factors on wireless transceiver should be avoided as much as possible. Notice: Avoid using metal for the part of the product housing that The metal screws inside the product should be kept away from the RF part of the module. To maximize RF performance, user board layout should follow the following recommendations: 1) Antenna clearance area: the user board located directly under the antenna area of the module cannot have any copper foil (including power, ground, signal layers). 2) Module location:

Ideally, the module should be arranged in a corner of the user's mainboard, and the PCB antenna is located at the far end of the mainboard. This position minimizes the antenna clearance area 6. Furnace parameters Refer to the following settings for the furnace parameters FCC Statement equipment. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the 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. OEM Guidance 1. Applicable FCC rules Modular Approval. 2. The specific operational use conditions This module has been tested and found to comply with part 15.247 requirements for This module can be used in IoT devices. The input voltage to the module is nominally 3.3V DC. The operational ambient temperature of the module is -

40 to 5 degree C. Only the embedded PCB 8 antenna is allowed. Any other external antenna is prohibited. 3. Limited module procedures 4. Trace antenna design N/A N/A 5. RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment This equipment should be installed and operated with minimum distance 20cm between the radiator&

your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by 2.1093. 6. Antenna Antenna type: PCB antenna; Peak gain: 3.40dBi 7. Label and compliance information An exterior label on OEMs end product can use wording such as the following:

Contains Transmitter Module FCC ID: 2AC7Z-ESP32WROOM32E or Contains FCC ID: 2AC7Z-ESP32WROOM32E. 6. Antenna Antenna type :PCB Antenna; Antenna Max. Peak Gain 0 dBi 7. Label and compliance information When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a second label must be placed on the outside of the final device that contains the following text: Contains FCC ID:

can be used only when all FCC ID compliance requirements are met. The FCC ID 2A6QWMR-BLE001 8. Information on test modes and additional testing requirements a)The modular transmitter has been fully tested by the module grantee on the required number of channels,modulation types, and modes, it should not be necessary for the host installer to re-test all the available transmitter modes or settings. It is recommended that the host product manufacturer, installing the modular transmitter,perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions). b)The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or due to physical properties of the host product

(enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration. It is important to note that host product manufacturers should not assume that because the modular transmitter is certified that they do not have any responsibility for final product compliance. c)If the investigation indicates a compliance concern the host product manufacturer is obligated to mitigate the issue. Host products using a modular transmitter are subject to all the applicable individual technical rules as well as to the general conditions of operation in Sections 15.5, 15.15, and 15.29 to not cause interference. The operator of the host product will be obligated to stop operating the device until the interference have been corrected .

Zhejiang Yulu Electronic Technology Co., Ltd. Add: Rm 805, 8/F, Xianfeng Science and Technology Bldg. No.298 Weiye Road, Binjiang District, Hangzhou, Zhejiang, China Tel: 0571-86076826 Fax: 0571-86076826 Email: liuxianbo@merach.com Date: 2022-03-08 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam:

The chip TLSR8251 installed in our product Intelligent Bluetooth module, model name:MR-BLE001,FCC ID: 2A6QWMR-BLE001, which supports BLE/802.15.4/2.4GHz RF transceiver mode. But for the product, only BLE with data rate 1Mbps,2Mbps are activated, the others RF features was disabled by software. Please contact me if there is need for any additional clarification or information. Best Regards, Sincerely Yours, Signature:

Printed Name: Xianbo Liu Title: Engineer

Zhejiang Yulu Electronic Technology Co., Ltd. Add: Rm 805, 8/F, Xianfeng Science and Technology Bldg. No.298 Weiye Road, Binjiang District, Hangzhou, Zhejiang, China Tel: 0571-86076826 Fax: 0571-86076826 Email: liuxianbo@merach.com FCC Confidential Authorization Date: 2022-03-08 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2A6QWMR-BLE001 In accordance with Sections 0.457 and 0.459 of the Commissions Rules, Zhejiang Yulu Electronic Technology Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below:

Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature:

Printed Name: Xianbo Liu Title: Engineer QA-FR-171-A

Zhejiang Yulu Electronic Technology Co., Ltd. Add: Rm 805, 8/F, Xianfeng Science and Technology Bldg. No.298 Weiye Road, Binjiang District, Hangzhou, Zhejiang, China Tel: 0571-86076826 Email: liuxianbo@merach.com Fax: 0571-86076826 Modular Approval Letter Date:2022-03-08 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 We, Zhejiang Yulu Electronic Technology Co., Ltd., hereby request Modular Approval for Product: Intelligent Bluetooth module (model number: MR-BLE001), FCC ID: 2A6QWMR-BLE001).The device meets all of the requirement for modular approval as detailed in FCC 15.212. the requirements is described below:

1. The modular transmitter must have its own RF shielding. Yes. The module has its own RF shielding. Please see the EUT photos. 2. The modular transmitter must have buffered modulation/data inputs. Yes. The modular transmitter has buffered modulation/data inputs, it has been integrated in chip (TLSR8251). 3. The modular transmitter must have its own power supply regulation. Yes. Its own power supply regulation was performed by chip TLSR8251. 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). Yes. The modular has one integral PCB antenna and the maximum gain is 0dBi. 5.The modular transmitter must be tested in a stand-alone configuration. Yes. The EUT was tested in a stand-alone configuration, please refer to test photos for details. 6.The modular transmitter must be labeled with its own FCC ID number. Yes. The module will be labeled with its own FCC ID number. Please see FCC ID label. 7.The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. Yes. The necessary explanation to be complied with this requirement is contained in the user manual, and please refer to the User manual. 8. The modular transmitter must comply with any applicable RF exposure requirements. Yes. This device meets RF exposure evaluation at distance greater than 20 cm specified in 2.1091.If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by2.1093. Sincerely, Signature:

Printed Name: Xianbo Liu Title: Engineer

Zhejiang Yulu Electronic Technology Co., Ltd. Add: Rm 805, 8/F, Xianfeng Science and Technology Bldg. No.298 Weiye Road, Binjiang District, Hangzhou, Zhejiang, China Tel: 0571-86076826 Fax: 0571-86076826 Email: liuxianbo@merach.com FCC Authorization Date: 2022-03-08 bE} DIED TAN POON NYLON (OF. WU ON OO NV AVERSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern:

We, Zhejiang Yulu Electronic Technology Co., Ltd., hereby authorizes China Certification ICT Co., Ltd (Dongguan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: iad bw Printed Name: Xianbo Liu Title: Engineer QA-FR-170-B