FCC ID: 2AMWOFSC-BT909C Bluetooth module

FSC-BT909C FSC-BT909C 4.2 Dual Mode Bluetooth Module Data Sheet Document Type:

FSC-BT909C Document Version: V1.3 Release Date:

August.29. 2022 This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device. Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

(1) L' appareil ne doit pas produire de brouillage;

(2) L' appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'

en compromettre le fonctionnement. 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. Shenzhen Feasycom Co.,Ltd. 1 www.feasycom.com FSC-BT909C

-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 Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. Contact Us Shenzhen Feasycom Co.,LTD Email: sales@feasycom.com Address: Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen, 518102, China Tel: 86-755-27924639 Release Record Version Number Release Date Comments 2022-07-8 Revision 1.0 2022-07-11 Revision 1.1 2022-07-11 Revision 1.2 2022-08-29 Revision 1.3 First Release Add application principle diagram Restricted Area Size correction Pin description changed Shenzhen Feasycom Co.,Ltd. 2 www.feasycom.com FSC-BT909C 1. INTRODUCTION FSC-BT909C is a bluetooth 4.2 Smart Ready device ( with BR/EDR & LE support simultaneo usly ) . It is a small form factor, highly power and highly economic Bluetooth radio module that allows OEM to add wireless capability to their products. The module supports multiple interfaces that make it simple to integrate into fully certified embedded Bluetooth solutions. With AT programming interfaces, designers can easily customize their applications to support different Bluetooth profiles, such HS/HF, A2DP, AVRCP, OPP, DUN, SPP, and etc. The module supports Bluetooth Enhanced Data Rate (EDR) and delivers up to 3 Mbps data rate for distances to 100M. The module is an appropriate product for designers who want to add wireless capability to their products. The supported remote devices OS are iOS, Android, and Windows. External whip antenna, transmitting over 2000M 1.1 Feature Fully qualified Bluetooth 4.2/3.0/2.1/2.0/1.2/1.1 Postage stamp sized form factor, Class 1 support (high output power)Low power Class 1 support(high output power) The default UART Baud rate is 115.2Kbps and can support from 1200bps up to 921Kbps,. UART, I2C, PCM/I2S data connection interfaces. Profiles including HS/HF, A2DP, AVRCP, OPP, DUN, SPP, HID,BLE RoHS compliant FCC, CE Certified Shenzhen Feasycom Co.,Ltd. 3 www.feasycom.com FSC-BT909C 1.2 Application Cable replacement Portable Multimedia players High quality stereo headsets High quality mono headsets Hands-free car kits Wireless speakers Bluetooth-Enable Automotive Dashboards VOIP handsets Medical devices Barcode and RFID scanners Industrial devices 2. GENERAL SPECIFICATION General Specification ChipSet Product ID Dimension BT4.2 Dual Mode FSC-BT909C 13mm(W) x 26.9mm(L) x 2.2mm(H)

(Tolerance: 0.1mm) Bluetooth Specification Bluetooth V4.2 (Dual Mode) Power Supply Output Power Sensitivity Frequency Band Modulation 3.3 Volt DC 18.5 dBm (Class 1)

-86dBm@0.1%BER 2.402GHz -2.480GHz ISM band GFSK 8DPSK,DQPSK Baseband Crystal OSC 26MHz Hopping & channels 1600hops/sec, 1MHz channel space,79 Channels(BT 4.2 to 2MHz channel space) RF Input Impedance 50 ohms Shenzhen Feasycom Co.,Ltd. 4 www.feasycom.com FSC-BT909C Antenna Interface Integrated chip antenna Data: UART (Standard), I2C Audio: MIC In (Standard), PCM/I2S Others: PIO, AIO, Touch sensor, PWM. USB 2.0 SPP, GATT(BLE Standard) Profile MFI, Airsync, ANCS, iBeacon, HID Temperature Humidity Environmental MSL grade:

ESD grade HS/HF, A2DP, AVRCP

-20C to +85C 10%~95% Non-Condensing RoHS Compliant MSL 3 Human Body Model: Class-2 Machine Model: Class-B Table 1 3. PHYSICAL CHARACTERISTIC Dimension 13mm(W) x 26.9mm(L) x 2.2mm(H) Tolerance: 0.2mm Module size: 13mm X 26.9mm Tolerance: 0.2mm Pad size: 1mmX0.8mm Tolerance: 0.2mm Pad pitch: 1.5mm Tolerance: 0.1mm Shenzhen Feasycom Co.,Ltd. 5 www.feasycom.com FSC-BT909C Figure 2 Shenzhen Feasycom Co.,Ltd. 6 www.feasycom.com FSC-BT909C 4. PIN DEFINITION DESCRIPTIONS Figure 3: FSC-BT909C PIN Diagram Pin NO. Pin Name Type UART_TX CMOS output UART_RX CMOS input Pin Descriptions UART data output UART data input UART_CTS CMOS input UART clear to send active low (NC by Default) UART_RTS CMOS output UART request to send active low(NC by Default) I2S_CK Bi-directional I2S_SD_OUT Bi-directional I2S_SD_IN Bi-directional I2S CLK (BCLK) I2S Data Output I2S Data Input I2S_WS Bi-directional I2S Chip Select For Synchronous Serial Interface PIO12/Tran/AI O0 I/O Programmable input/output line Alternative Function 1: Analogue programmable I/O line. Alternative Function 2: Host MCU change UART 1 2 3 4 5 6 7 8 9 Shenzhen Feasycom Co.,Ltd. 7 www.feasycom.com 211415161718192013121110987654333222324252627282930UART_TXNCPIO4NC/UART_RTSI2S_CKI2S_SD_INI2S_SD_OUTI2S_WSPIO12/Tran/AIO0PIO13/Disc/AIO1RESET31322134UART_RXNC/UART_CTSVDD_3V3GNDNCPIO21MIC_BIASMIC-MIC+NCNCGNDGNDNCPIO2PIO3PIO5PIO6PIO7NCPIO9PIO10NC3536GNDEXT_ANT 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 FSC-BT909C PIO/13Disc/AI O1 transmission mode. Programmable input/output line I/O Alternative Function 1: Analogue programmable I/O line. Alternative Function 2: Host MCU disconnect bluetooth. Reset if low. Input debounced so must be low for >5ms RESET CMOS input VDD_3V3 GND NC VDD VSS

to cause a reset. Power supply voltage 3.3V Power Ground

PIO21 Bi-directional Programmable input/output line MIC_BIAS VDD MIC-

Analogue Input MIC+

Analogue Input

VSS VSS

NC NC GND GND NC NC PIO2 PIO3 MIC_VDD MIC- Input MIC+ Input NCDo not to GND NCDo not to GND Power Ground Power Ground

Bi-directional Programmable input/output line Bi-directional Programmable input/output line PIO4 Bi-directional Programmable input/output line Alternative Function: PA_EN pin, active high PIO5 Bi-directional Programmable input/output line PIO6 Bi-directional PIO7 Bi-directional Programmable input/output line Alternative Function: I2C Serial Clock input/output Programmable input/output line Alternative Function:I2C Serial Data input/output NC

PIO9 Bi-directional 33 PIO10 Bi-directional Programmable input/output line Alternative Function: LED(Default) Programmable input/output line Alternative Function: BT Status(Default) Shenzhen Feasycom Co.,Ltd. 8 www.feasycom.com FSC-BT909C 34 35 NC GND

VSS

Power Ground 36 EXT_ANT RF signal output By default, this PIN is an empty feet. This PIN can connect to an external antenna to improve the Bluetooth signal coverage. If you need to use an external antenna, by modifying the module on the 0R resistance to block out the on-board antenna; Or contact Feasycom for modification. 5. Electrical Characteristics Table 2 5.1 Absolute Maximum Ratings The module should not continuously run under extreme conditions. The absolute maximum ratings are summarized in Table below. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device. Temperature/Voltage Storage temperature Operating temperature Supply voltage Terminal voltages Min

-40

-20

-0.3 Max 85 85 3.6 VSS - 0.4 Vdd + 0.4 Table 3 Unit C C V V 5.2 Absolute Recommended Operating Conditions The recommended operating conditions are summarized in Table below. Temperature/Voltage Operating temperature Supply voltage Terminal voltages Typ 25 3.3 Min

-20

0 Table 4 Max 85

Vdd Unit C V V 5.3 Terminal Characteristics FSC-BT909Cs terminal characteristics are summarized Table below. Characteristics Min Typ Max Unit I/O static characteristics VIL input logic level low

0.3VDD V Shenzhen Feasycom Co.,Ltd. 9 www.feasycom.com FSC-BT909C VIH input logic level high VHYS input hysteresis Ilkg input leakage current RPU Weak pull-up equivalent resistor RPD Weak pull-down equivalent resistor CIO pin capacitance VOL output logic level low VOH output logic level high NRST pin characteristics VTH,res threshold voltage RIRES input resistance CIRES input capacitance 0.4VDD

30 30

Vdd -0.4 10% VDD

40 40 5

1 50 50

0,2

1.65

1.8 10 100 VDD

V V uA K K pF V V V k nF Table 5 5.4 Current Consumption FSC-BT909Cs current consumption is summarized in Table below. Operation Mode Connection Type Average Unit Discoverable ACL SCO LE Connected ACL & LE Both connected Maximum Current Inquiry/page:640mS interval ,11.25mS window Advertising :152.5mS interval Active Mode File transfer ,throughput Active Mode 20mS Interval File transfer ,throughput ACL:1280mS interval LE:240mS interval Send 2441MHZ fixed frequency signals Table 6 28 34 44 36 30 36 1.7

~225 mA mA mA mA uA mA mA mA 5.5 Radio Characteristics 5.5.1 Transmitter Radio Characteristics TX output is guaranteed to be unconditionally stable over the guaranteed temperature range. Refer to Table below. Measurement conditions: T = 20, Vdd =

Shenzhen Feasycom Co.,Ltd. 10 www.feasycom.com FSC-BT909C 3.3V. Item Typical Value Maximum output power1,2 RF power control range 20dB bandwidth for modulated carrier Adjacent channel transmit power F = F0 2MHz Adjacent channel transmit power F = F0 3MHz Adjacent channel transmit power F = F0 > 3MHz ion Initial carrier frequency tolerance Drift Rate Drift (single slot packet) Drift (five slot packet) 2nd Harmonic content 3rd Harmonic content

+18.5 34 788

-36

-45

-51 163 158 0.91 13 8 7 9

-65

-45 Table 7 Bluetooth Specification

-6 to 20 16 1000 20

-40

-40 140<f1avg<175 115 0.80 75 20 25 40

-30

-30 Unit dBm dB kHz dBm dBm dBm kHz kHz

kHz kHz/50s kHz kHz dBm dBm 5.5.2 Receiver Radio Characteristics RX input is guaranteed to be unconditionally stable over the guaranteed temperature range. Refer to Table below. Measurement conditions: T = 20, Vdd = 3.3V. Sensitivity@0.1%

BER for all packet types BER@ Maximum received signal(-20dBm) Frequency(GHz) Typ. 2.402 2.441 2.480 2.402 2.441 2.480

-87

-88

-86 0 0 0 Table 8 Unit dBm dBm dBm dBm dBm dBm Bluetooth Specification

<-75dBm

<0.1%

Shenzhen Feasycom Co.,Ltd. 11 www.feasycom.com FSC-BT909C 6. Interface Characteristics 6.1 UART Interface Four signals are used to implement the UART function. When FSC-BT909C is connected to another digital device, UART_RX and UART_TX transfer data between the two devices. The remaining two signals, UART_CTS and UART_RTS, can be used to implement RS232 hardware flow control where both are active low indicators. The interface consists of four-line connection as described in below:

Signal name Driving source Description UART-TX FSC-BT909C module Data from FSC-BT909C module UART-RX Host Data from Host UART-RTS FSC-BT909C module Request to send output of FSC-BT909C module UART-CTS Host Clear to send input of FSC-BT909C module Possible UART Settings Property Baud Rate Flow Control Data bit length Parity Number of Stop Bits Default Data Format Property Baud Rate Flow Control Data bit length Parity Number of Stop Bits Table 9 Possible Values 1200bps to 921Kbps RTS/CTS or None 8bits None, Odd or Even 1 or 2 Table 10 Possible Values 115.2Kbps None 8bit None 1 Table 11 Shenzhen Feasycom Co.,Ltd. 12 www.feasycom.com FSC-BT909C 6.2 PCM/I2S Interface The I2S can be operated in master or slave mode, in full duplex and simplex communication modes and can be configured to operate with a 16-/32-bit resolution as an input or output channel. Audio sampling frequencies from 8 kHz up to 192 kHz are supported. When either or both of the I2S interfaces is/are configured in master mode, the master clock can be output to the external DAC/CODEC at 256 times the sampling frequency. The I2S can be served by the DMA controller. 6.3 I2S dynamic characteristics 1. Guaranteed by characterization. 2. The maximum value of 256xFs is 42 MHz (APB1 maximum frequency). Table 12 I2S dynamic characteristics Note: Refer to the I2S section of the reference manual for more details on the sampling frequency(F S ). f MCK , f CK , and D CK values reflect only the digital peripheral behavior. The values of these parameters might be slightly impacted by the source clock precision. D CK depends mainly on the value of ODD bit. The digital contribution leads to a minimum value of

(I2SDIV/(2*I2SDIV+ODD) and a maximum value of (I2SDIV+ODD)/(2*I2SDIV+ODD). F S maximum value is supported for each mode/condition. Shenzhen Feasycom Co.,Ltd. 13 www.feasycom.com FSC-BT909C 1. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first byte. Figure 4: I2S slave timing diagram (Philips protocol) 360 1. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first byte. Figure 5: I2S master timing diagram (Philips protocol) 6.4 AIO, PIO lines and I2C Up to 16 programmable bidirectional input/output (I/O) can be used. Two general purpose analogue interface pin can be used. PIO6 and PIO7 can be used as I2C interface. Inter-Integrated Circuit Interface (I2C) Shenzhen Feasycom Co.,Ltd. 14 www.feasycom.com FSC-BT909C I2C bus interfaces can operate in multi-master and slave modes. They can support the standard (up to 100 kHz) and fast (up to 400 kHz) modes. The I2C bus frequency can be increased up to 1 MHz. For more details about the complete solution, please contact your local ST sales representative. They also support the 7/10-bit addressing mode and the 7-bit dual addressing mode (as slave). A hardware CRC generation/verification is embedded. They can be served by DMA and they support SMBus 2.0/PMBus. The devices also include programmable analog and digital noise filters Analog to Digital Converter (ADC) One 12-bit analog-to-digital converter is embedded and shares up to 16 external channels, performing conversions in the single-shot or scan mode. In scan mode, automatic conversion is performed on a selected group of analog inputs. The ADC can be served by the DMA controller. An analog watchdog feature allows very precise monitoring of the converted voltage of one, some or all selected channels. An interrupt is generated when the converted voltage is outside the programmed thresholds. To synchronize A/D conversion and timers, the ADCs could be triggered by any of TIM1,TIM2, TIM3, TIM4 or TIM5 timer. 6.5 Audio Interface FSC - BT909C built-in a low power, high quality stereo codec. The Codec main features as follows:

DAC with auto attenuate: 124dB SNR; without auto mute: 113dB SNR, (A-weighted)

@ 0dB gain, 1.8V and -89dB THD @ 20mW and R L = 32, DAC playback to headphone output mode. ADC: 101dB SNR (A-weighted) @ 0dB MIC gain, 1.8V, Fs = 48kHz and -91dB THD , 1.8V, MIC gain 0dB, OSR 128x. Dynamic Range Compressor (DRC). Programmable Biquad filter. 1 Differential Analog Mic input, Line-input, or two single-ended Mic input. Class G Headphone Amplifier(28mW @ 32,1% THD+N). 6.6 Audio Electrical Characteristics Conditions: VDDA = VDDC = 1.8V; VDDB =VDDMIC= 3.3V. RL(Headphone)=32, f=1kHz, MCLK=12.88MHz, unless otherwise specified. Limits apply for TA= 25C Shenzhen Feasycom Co.,Ltd. 15 www.feasycom.com FSC-BT909C Shenzhen Feasycom Co.,Ltd. 16 www.feasycom.com FSC-BT909C Table 13: Analogue Inputs to ADC out & Analogue Outputs Shenzhen Feasycom Co.,Ltd. 17 www.feasycom.com FSC-BT909C 7. RECOMMENDED TEMPERATURE REFLOW PROFILE The re-flow profiles are illustrated in Figure 4 and Figure 5 below. Follow: IPC/JEDEC J-STD-020 C Condition:

Average ramp-up rate(217 to peak):1~2/sec max. Preheat:150~200C,60~180 seconds Temperature maintained above 217:60~150 seconds Time within 5 of actual peak temperature:20~40 sec. Peak temperature:250+0/-5 or 260+0/-5 Ramp-down rate:3/sec.max. Time 25 to peak temperature:8 minutes max Cycle interval5 mintutes Figure 6: Typical Lead-free Re-flow Solder Profile Shenzhen Feasycom Co.,Ltd. 18 www.feasycom.com FSC-BT909C Figure 7: Typical Lead-free Re-flow The soldering profile depends on various parameters according to the use of different solder and material. The data here is given only for guidance on solder re-flow. FSC-BT909C will withstand up to two re-flows to a maximum temperature of 245C. 8. Reliability and Environmental Specification 8.1 Temperature test Put the module in demo board which uses exit power supply, power on the module and connect to mobile. Then put the demo in the 30 space for 1 hour and then move to +85 space within 1minute, after 1 hour move back to 30 space within1 minute. This is 1 cycle. The cycles are 32 times and the units have to pass the testing. 8.2 Vibration Test The module is being tested without package. The displacement requests 1.5mm and sample is vibrated in three directions(X,Y,Z).Vibration frequency set as 0.5G , a sweep rate of 0.1 octave/min from 5Hz to 100Hz last for 90 minutes each direction. Vibration frequency set as 1.5G, a sweep rate of 0.25 octave/min from 100Hz to 500Hz last for 20 minutes each direction. Shenzhen Feasycom Co.,Ltd. 19 www.feasycom.com 2170C2420C FSC-BT909C 8.3 Desquamation test Use clamp to fix the module, measure the pull of the component in the module, make sure the module`s soldering is good. 8.4 Drop test Free fall the module (condition built in a wrapper which can defend ESD) from 150cm height to cement ground, each side twice, total twelve times. The appearance will not be damaged and all functions OK. 8.5 Packaging information After unpacking, the module should be stored in environment as follows:

Temperature: 25 2 Humidity: <60%

No acidity, sulfur or chlorine environment The module must be used in four days after unpacking. 9. Layout and Soldering Considerations 9.1 Soldering Recommendations FSC-BT909C is compatible with industrial standard reflow profile for Pb-free solders. The reflow profile used is dependent on the thermal mass of the entire populated PCB, heat transfer efficiency of the oven and particular type of solder paste used. Consult the datasheet of particular solder paste for profile configurations. Feasycom will give following recommendations for soldering the module to ensure reliable solder joint and operation of the module after soldering. Since the profile used is process and layout dependent, the optimum profile should be studied case by case. Thus following recommendation should be taken as a starting point guide. 9.2 Layout Guidelines It is strongly recommended to use good layout practices to ensure proper operation of the module. Placing copper or any metal near antenna deteriorates its operation by having effect on the matching properties. Metal shield around the antenna will prevent the radiation and thus metal case should not be used with the module. Use grounding vias separated max 3 mm apart at the edge of grounding areas to prevent RF penetrating inside the PCB and causing an unintentional resonator. Use GND vias all around the PCB edges. Shenzhen Feasycom Co.,Ltd. 20 www.feasycom.com FSC-BT909C The mother board should have no bare conductors or vias in this restricted area, because it is not covered by stop mask print. Also no copper (planes, traces or vias) are allowed in this area, because of mismatching the on-board antenna. Figure 8: FSC-BT909C Restricted Area Following recommendations helps to avoid EMC problems arising in the design. Note that each design is unique and the following list do not consider all basic design rules such as avoiding capacitive coupling between signal lines. Following list is aimed to avoid EMC problems caused by RF part of the module. Use good consideration to avoid problems arising from digital signals in the design. Ensure that signal lines have return paths as short as possible. For example if a signal goes to an inner layer through a via, always use ground vias around it. Locate them tightly and symmetrically around the signal vias. Routing of any sensitive signals should be done in the inner layers of the PCB. Sensitive traces should have a ground area above and under the line. If this is not possible, make sure that the return path is short by other means (for example using a ground line next to the signal line). Shenzhen Feasycom Co.,Ltd. 21 www.feasycom.com 526.9Max.0.52081318Max.1.01015Applic. PCBno bare copper(exept solder pads for module)no copper and components on any layerno components on any layerdo not place any conductive parts in this areaProvide solid ground plane(s) as large as possible around area3.010.4Unit:mm FSC-BT909C 10. Product Packaging Information 10.1 Packing a, Tray vacuum b, Tray Dimension: 180mm * 195mm Figure 9: Product Packaging Information (Tray) Shenzhen Feasycom Co.,Ltd. 22 www.feasycom.com FSC-BT909C 10.2 Packing box(Optional)

* If require any other packing, must be confirmed with customer Figure 10: Packing Box 11. FCC Warning Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 11.1 List of applicable FCC rules FCC Part 15.247 11.2 Specific operational use conditions This transmitter/module and its antenna(s) must not be co-located or operating in conjunction with any transmitter. This information also extends to the host manufacturers instruction manual. 11.3 Limited module procedures Not applicable 11.4 Trace antenna designs It is not applicable as trace antenna which is not used on the module. 11.5 RF exposure considerations This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. 11.6 Antennas Shenzhen Feasycom Co.,Ltd. 23 www.feasycom.com FSC-BT909C PCB Antenna; 2dBi; 2.402 GHz2.480GHz 11.7 Label and compliance information The end product must carry a physical label or shall use e-labeling followed KDB784748D01 and KDB 784748 stating Contains Transmitter Module FCC ID: 2AMWOFSC-BT909C. 11.8 Information on test modes and additional testing requirements For more information on testing, please contact the manufacturer. 11.9 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for the specific rule parts (FCC Part 15.247) listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed when contains digital circuity. 12. FCC Statements

(OEM) Integrator has to assure compliance of the entire end-product incl. the integrated RF Module. For 15 B (15.107 and if applicable 15.109) compliance, the host manufacturer is required to show compliance with 15 while the module is installed and operating. Furthermore the module should be transmitting and the evaluation should confirm that the module's intentional emissions (15C) are compliant (fundamental / out-of-band). Finally the integrator has to apply the appropriate equipment authorization (e.g. Verification) for the new host device per definition in 15.101. Integrator is reminded to assure that these installation instructions will not be made available to the end-user of the final host device. The final host device, into which this RF Module is integrated" has to be labeled with an auxiliary label stating the FCC ID of the RF Module, such as "Contains FCC ID:2AMWOFSC-BT909C

"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."

Shenzhen Feasycom Co.,Ltd. 24 www.feasycom.com FSC-BT909C

"Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment."

The Integrator will be responsible to satisfy SAR/ RF Exposure requirements, when the module integrated into the host device. 13. Module statement The single-modular transmitter is a self-contained, physically delineated, component for which compliance can be demonstrated independent of the host operating conditions, and which complies with all eight requirements of 15.212(a)(1) as summarized below. 1) The radio elements have the radio frequency circuitry shielded. 2) The module has buffered modulation/data inputs to ensure that the device will complywith Part 15 requirements with any type of input signal. 3) The module contains power supply regulation on the module. 4) The module contains a permanently attached antenna. 5) The module demonstrates compliance in a stand-alone configuration. 6) The module is labeled with its permanently affixed FCC ID label. 7) The module complies with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. 8) The module complies with RF exposure requirements. 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 Shenzhen Feasycom Co.,Ltd. 25 www.feasycom.com FSC-BT909C 14. IC Statements The final host device, into which this RF Module is integrated" has to be labeled with an auxiliary label stating the IC of the RF Module, such as" Contains transmitter module IC:

23872-FSCBT909C Le priphriquehte final, danslequelce module RF estintgr "doittretiquet avec unetiquetteauxiliaireindiquant le CI du module RF, tel que" Contient le module metteur IC: 23872-FSCBT909C This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device. Lmetteur/rcepteur exempt de licencecontenudans le prsentappareilestconforme aux CNR dInnovation, Sciences et Dveloppementconomique Canada applicables aux appareils radio exempts de licence. Lexploitationestautorise aux deux conditions suivantes :

(1) L' appareil ne doit pas produire de brouillage;

(2) L' appareildoit accepter tout brouillageradiolectriquesubi, mmesi le brouillageest susceptible d' encompromettre le fonctionnement. Shenzhen Feasycom Co.,Ltd. 26 www.feasycom.com

FCC ID and IC Label Location 10mm*20mm FCC ID: 2AMWOFSC-BT909C IC: 23872-FSCBT909C HVIN: FSC-BT909C

Shenzhen Feasycom Co., LTD Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen Guangdong 518102, China Agent Authorization Company: Shenzhen Feasycom Co., LTD Address: Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen Guangdong 518102, China Product Name: Bluetooth module Model Number(s): FSC-BT909C Product Description: Bluetooth module We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Name:

Wan Zhifu Title:

General Manager Company: Shenzhen Feasycom Co., LTD Date: May. 18, 2023

Shenzhen Feasycom Co., LTD Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen Guangdong 518102, China Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: May. 18, 2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AMWOFSC-BT909C Product Name: Bluetooth module Model Name: FSC-BT909C

[Shenzhen Feasycom Co., LTD] (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely,

\wwn Vv Wir

(Applicant signature) Name: Wan Zhifu Title: General Manager

Shenzhen Feasycom Co., LTD Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen Guangdong 518102, China Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: May. 18, 2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AMWOFSC-BT909C Product Name: Bluetooth module Model Name: FSC-BT909C

[Shenzhen Feasycom Co., LTD] (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Sincerely, Won

(Applicant signature) Name: Wan Zhifu Title: General Manager

Shenzhen Feasycom Co., LTD Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen Guangdong 518102, China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: May. 18, 2023 Subject; Request for Confidentiality FCC ID: 2AMWOFSC-BT909C To Whom. It May Concern, . Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. XX] Schematic Diagram XX] Block Diagram X] Operational Description

&X] Parts List In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

(J External Photos L] Test Setup Photos L_] Internal Photos

(J User Manual C1] For 45 days, pursuant to Public Notice DA 04-1705. OR LJ For 180 days pursuant to KDB 726920 DO1. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

wom wif Name: Wan Zhifu Title: General Manager

[Shenzhen Feasycom Co., LTD]

[Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District,]

[Shenzhen Guangdong 518102]

[China]

Date: Mar. 28, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AMWOFSC-BT909C US Agent Attestation Statement / Part 2.911(d)(7)

[Shenzhen Feasycom Co., LTD] certifies, that as of [Mar. 28, 2023], we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2AMWOFSC-BT909C.

[Shenzhen Feasycom Co., LTD], accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-

related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of [Shenzhen Feasycom Co., LTD] for FCC ID: 2AMWOFSC-BT909C. Designated Agent Information:

Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: Support@FCCUSAgent.com Sincerely, Company: [Shenzhen Feasycom Co., LTD]

Designated Agent: FCC US Agent, LLC Company Representative: [Wan zhifu]

Tel: +86-755-23715085 Email: zhifu.wan@feasycom.com Signature:

Designated Agent Representative: Tim Payne Signature: