FCC ID: 2ACCRHOMEHUB100 Development Kit

Home Hub 100 production specification &

Startup Guide Rev 2.0 Sep 2020 History Version Date Description V0.2 V1.0 V2.0 09/11/2018 01/20/2020 09/4/2020 Initial specification draft Update with new photo

(1) Update the wireless characteristics

(2) Update the guides

(3) Update the figure CONTENTS 1.1 1.2 1 Overview .................................................................................................................................. 3 Features ....................................................................................................................... 3 Application ................................................................................................................... 4 2 ASV1108 Hardware description ........................................................................................... 5 ASV1108_ Top view .................................................................................................. 5 ASV1108_Bottom view .............................................................................................. 6 ASV1108_structure diagram..................................................................................... 7 2.1 2.2 2.3 3 ASV1108 and WL501 board Sketch Map ........................................................................... 8 3.1 WL501 board Interface Description ......................................................................... 8 3.2 WL501 board and ASV1108 Connection ................................................................ 9 4 Wireless characteristics ........................................................................................................ 10 4.1 2.4GHz power measurements ........................................................................................... 10 4.4 4.2 5 GHz power measurements ............................................................................................. 10 4.3 BLE power measurements ................................................................................................. 11

.15.4 power measurements ......................................................................................11 5 Sample application ............................................................................................................... 12 5.1Run the App: ...................................................................................................................... 12 Appendix ................................................................................................................................. 14 6.1 Hardware included ................................................................................................... 14 Related Documents.......................................................................................................... 14 802 6 7 1 Overview ASV1108(Ehong Smart Voice) is an intelligent voice suite with integrated voice triggering function. Use the Conexant CX20921 Platform, CX20921 is a high performance far field speech input processor on the chip systemsupport low system power Wakeon-VoiceWoV function, support SSP output, noise suppression and full duplex Acoustic Echo Cancellation AEC. Support multiple extension ports, speaker interface, headphone jack. Support analog MIC and digital MIC. Support USB2.0 Support Mute Button and Wake-up Button. Carry Qualcomm WL501 board Development Board, used for building wireless smart audio, smart home appliances, internet of things and other devices. 1.1 Features Cores C-programmable dual core 32-bit DSP (CAPE) with X and Y data, P memory spaces running at worstcase 200MHz, and yields 800MIPS Each core has dual Multiply-Accumulate (MAC) and dual memory Fixed point DSP with floating point assist Each MAC supports 32 x 24-bit and 64-bit accumulators Supports zero-overhead loop, circular buffers, and bit-reverse indexing 32-bit Arithmetic Logic Unit (ALU) that supports efficient bit manipulation Data memory access is 16-bit, 32-bit, and 64-bit Virtually all programming is done in C, using a very efficient C-compiler from Target Natively supported data types include: int, short, long, long long, Q15, Q23, Q8.23, and Q31 Support two speakers, and two MIC. Power: Input 5V, 1A On-Chip Memory Integrated memory 747KB SRAM and 66KB ROM:

ROM = 46KB (Data) and 20KB (Program) RAM = 522KB (Data) and 225KB (Program) SERIAL FLASH MEMORY32M bit 1.2 Application Voice control smart TV/set-top box Smart Bluetooth/WiFi Speakers Voice interactive smart device Internet of things (IOT) devices Car hands-free control/communication 2 ASV1108 Hardware description 2.1 ASV1108_ Top view 2.2 ASV1108_Bottom view Figure 2 ASV1108_Bottom view ASV1108 Evaluation Kit has three Microphones. One Left Microphone (MIC L) and two right Microphones (MIC R), you can adjust the MIC R switchover to control which one will be used. When ASV1108 J8 pin1 and pin 2 are connected by Jumper, MIC R 55mm is activated When ASV1108 J8 pin2 and pin 3 are connected by Jumper, MIC R 30mm is activated 2.3 ASV1108_structure diagram Figure 3 ASV1108_structure diagram 3 ASV1108 and WL501 board Sketch Map 3.1 WL501 board Interface Description The WL501 board Product Development Kit is engineered to help developers and device manufacturers create unique IoT products that work in concert with a wide variety of other devices and cloud ecosystems. The kit is well suited for developing IoT applications such as smart cities, toys, home control and automation, appliances, networking and home entertainment. The WL501 board kit is designed to provide interoperability among diverse IoT devices including most popular wireless standards, protocols and communication frameworks, and ease connectivity to various cloud and application services. Figure 5 WL501 board Interface description Figure 6 ASV1108 Connection view 3.2 WL501 board and ASV1108 Connection 4 Make connections to the ASV1108 board as shown in Figure 6 below. When FW Updating or RF testing, connect a Micro-USB cable between computer and WL501 board Micro-USB Port J6, other tests connect a Micro-USB cable to WL501 board Micro-USB Port J85. Figure 7 5 When the WL501 board is detected on USB, the USB devices needs to install the driver. 6 WL501 board Micro-USB Power interface description When J57 pin1 and pin2 are connected by Jumper, Micro-USB Port J85 as a power interface. 4 Wireless characteristics 4.1 2.4GHz power measurements Table 4-1 2.4 GHz power measurements at antenna port at 25 C, 5V nominal Standard Typical Tx Compliant Rx Sensitivity Unit 802.11b 22.88 802.11g 802.11n HT20 802.11n HT40 23.63 23.43 21.72

-91.5

-91.5

-92

-89.5 dBm dBm dBm dBm When J57 pin2 and pin3 are connected by Jumper, Micro-USB Port J6 as a power interface. 4.2 5 GHz power measurements Table 4-2 5 GHz power measurements at antenna port at 25C, 5V nominal Standard Rx Sensitivity Typical Tx Compliant Band1:21.27 Band4:18.62 Band1:21.95 Band4:18.53 802.11a 802.11n HT20 802.11n HT40 Band1:21.69 Band4:18.92

-89.5

-72.5

-89.5

-69.5

-86.5

-65 Unit dBm dBm dBm dBm dBm dBm 4.3 BLE power measurements Table 2-10 BLE power measurements at antenna port at 25C, 3.3V nominal with internal PA Parameter Maximum Description BT LE 1M BT LE 2M BT LE 1M BT LE 2M 2.14 1.11

-93

-93 Tx Power Rx Sensitivity 4.4 802.15.4 power measurements Table 2-11 802.15.4 power measurements at antenna port at 25C, 3.3V nominal with external PA Parameter Description Maximum Tx power Rx Sensitivity O-QPSK DSSS O-QPSK DSSS 0.99

-101 Unit dBm dBm dBm dBm Unit dBm dBm 5 Sample application 5.1Run the App:

The development kit comes pre-installed with the Alexa sample app. Following steps are designed to help developers run the app and see the development kit in action. Latest version of the Home Hub 100 users guide can be found here:

https://www.qualcomm.com/products/qca4020/tools-software Please refer to this users guide for more details. o o o Setup the AWS account as described in the Home Hub 100 users guide. The development kit comes with the sample app pre-installed. Make the hardware connections, On the QCA4020 development kit:

Make sure the power switch is set to OFF before handling the board. Remove jumpers from J34 and J31. This will start the development kit in Autoboot mode and run the application that is pre-flashed on the board. Connect the micro-USB connector J6 to power source. Connect the micro-USB connector J85 to your host PC. This will setup the serial comm port to run the sample app. On the ASV1108 Audio board:

Connect the speaker to ASV1108 audio board. Make sure that the Mute button on the audio board is set to Mic On and not to Mute o Once all the connections are made, Turn the power switch ON. The sample app has a command line interface. On the host PC, open a serial console using a port setting of 115200, 8, n, 1, and a CLI menu appears o WLAN connection Use the following commands to connect the development kit to Wi-Fi wlan enable or 3 5 wlan connect "WiFi Hotspot" password WPA2 CCMP CCMP

//wait for handshake

//WLAN: 4 way handshake success for device=1 net 4 or 4 4

//wait for

//Net: DHCPv4c: IP=10.73.201.200 Subnet Mask=255.255.254.0 Gateway=10.73.200.1

//Net: Resolving SNTP client...

//Net: Interface wlan1 initialized, DNS and SNTP started Successfully o Use the following CLI commands to download and save AWS certs Net cert get QCA4020_AIS_Thing1.pem.crt <ip-address> -s client.bin -k QCA4020_AIS_Thing1.pri.key -t pem_cert Net cert get root_ca.bin <ip-address> -s aws_ca_list.bin -t ca_list Net cert get ais_config.json <ip-address> -s

/spinor/ais_configuration.json -t raw_file Reboot the board and run the demo using the following CLI commands wlan enable or 3 5 wlan connect"WiFi Hotspot" password WPA2 CCMP CCMP o o o o net 4 Start AIS tasks alexa ais_init or 5 4 alexa ais_run or 5 5

> Resetting SYNA DSP Resetting DSP Complete You will see the following once the app registers to Alexa Mute Button successfully registered Wake Word interrupt registration successful Wake up button registration successful ais_client_id XXXXXX Client ID already registered Encryption key = 0xc9 ,0x53 ,0x39 ,0xxxxx Shadow Initialization successful Shadow Connection successful Connection: 7763b63d-281a-5c4e-ccaa-xxxxxxxxxxxx Connection ack: 0f7384fd-6fef-4c9b-a3a5-xxxxxxxxxxxx Alexa Client is ready When the application is run for the first time, it will ask the user to authenticate the device on AWS and use AWS IoT services. Please go to URL = https:// https://amazon.com/us/code Ehong Technology Co,.Ltd Confidential Login using your Amazon account and enter this code = XXXXXX Now you are ready to use the Alexa enabled development kit. You can use one of the To download and flash the latest version of the sample app, please refer to the Home Hub following voice commands:

Alexa, What is the time?

Alexa, Play some music. 100 Users Guide. 6 Appendix 6.1 Hardware included Name WL501 YC896 AVS1108 Speaker Function Version 3.1 QCA4020 based module from Ehong Demo board for testing Version A Voice module based on Synaptics 2 w Quantity 1 1 1 2 7 Related Documents Visit website and download: https://www.ehonglink.com/en/WL501-Qualcomm-Alexa.html SupportsQualcomm-techsupport@ehlink.com.cn phone: +0086 021-54769993-201 Sales sales@ehlink.com.cn FCC Statement:

Any 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. FCC Radiation Exposure Statement:

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. 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. ISED RSS Warning:

This device complies with Innovation, Science and Economic Development Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'ISED applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:

(1) l'appareil ne doit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. ISED RF exposure statement:

This equipment complies with ISED 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. Le rayonnement de la classe b repecte ISED fixaient un environnement non contrls.Installation et mise en uvre de ce matriel devrait avec changeur distance minimale entre 20 cm ton corps.Lanceurs ou ne peuvent pas coexister cette antenne ou capteurs avec dautres. For ISED,the device for operation in the band 51505250 MHz is only for indoor

Company Name: ShangHai Ehong Technology Co.,Ltd. Add:Suite501,No.3 building,No.439 Jinglian road,Minhang district,Shanghai,China Tel: 021-61263536 Fax: 021-61263536 E-mail: tony.tang@ehlink.com.cn Date: 2020-05-28 Attestation Letter FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern, The chip QCA4020 installed in our product Development Kit (model name: Home Hub 100, FCC ID: 2ACCRHOMEHUB100), which supports 2.4G Wi-Fi, BLE 1MHz, BLE 2MHz, Zigbee(2405-2475MHz), 5G WiFi Band1(51505250MHz), Band2(5250-5350MHz), Band3(54705725MHz), Band4(57255850MHz) functions. But for this product, it only activates 2.4G Wi-Fi, BLE 1MHz, BLE 2MHz, Zigbee(2405-2475MHz), 5G WiFi Band1and Band4 functions, the other functions are disabled by using the software. Please contact me if there is need for any additional clarification or information. Sincerely, Signature:

Typed or Printed Name: Tony Tang Title: Manager

Company: ShangHai Ehong Technology Co.,Ltd. Add: Suite501,No.3 building,No.439 Jinglian road,Minhang district,Shanghai,China Tel: 021-61263536 Fax: 021-61263536 Email: tony.tang@ehlink.com.cn FCC Authorization Date: 2020-05-28 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern:

We, ShangHai Ehong Technology Co.,Ltd., the undersigned, Hereby authorizes Bay Area Compliance Laboratories Corporation 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 Bay Area Compliance Laboratories Corp. 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:

QA-FR-170-B Typed or Printed Name: Tony Tang Title: Manager

Company Name: ShangHai Ehong Technology Co.,Ltd. Add:Suite501,No.3 building,No.439 Jinglian road,Minhang district,Shanghai,China Tel: 021-61263536 Fax: 021-61263536 E-mail: tony.tang@ehlink.com.cn FCC Confidential Authorization Date:2020-05-28 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2ACCRHOMEHUB100 To: whom it may concern, In accordance with Sections 0.457 and 0.459 of the Commissions Rules, ShangHai Ehong Technology Co.,Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below:

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. Block Diagram Schematics Operation Description Sincerely Yours, Signature:

Title: Manager Typed or Printed Name: Tony Tang