Home Hub 100 production specification & Startup Guide Rev 2.
History Version V0.2 V1.0 V2.0 Date 09/11/2018 01/20/2020 09/4/2020 Description Initial specification draft Update with new photo (1) Update the wireless characteristics (2) Update the guides (3) Update the figure CONTENTS 1 2 3 4 Overview .................................................................................................................................. 3 1.1 Features .......................................................................................................................
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 system，support low system power Wakeon-Voice（WoV） 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.
• 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 MEMORY：32M bit 1.
2 ASV1108 Hardware description 2.
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.
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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.
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.
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 802.11b Typical Tx Compliant 22.88 Rx Sensitivity Unit -91.5 dBm 802.11g 23.63 -91.5 dBm 802.11n HT20 23.43 -92 dBm 802.11n HT40 21.72 -89.5 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 25°C, 5V nominal Standard 802.
4.3 BLE power measurements Table 2-10 BLE power measurements at antenna port at 25°C, 3.3V nominal with internal PA Parameter Tx Power Rx Sensitivity Description Maximum BT LE 1M 2.14 BT LE 2M 1.11 BT LE 1M -93 BT LE 2M -93 Unit dBm dBm dBm dBm 4.4 802.15.4 power measurements Table 2-11 802.15.4 power measurements at antenna port at 25°C, 3.3V nominal with external PA Parameter Description Maximum Tx power O-QPSK DSSS 0.
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 Setup the AWS account as described in the Home Hub 100 users guide.
//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 Mask=255.255.254.0 Subnet 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 -s client.bin -k QCA4020_AIS_Thing1.pri.key -t pem_cert Net cert get root_ca.bin -s aws_ca_list.
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 following voice commands: “Alexa, What is the time?” “Alexa, Play some music.” To download and flash the latest version of the sample app, please refer to the Home Hub 100 Users Guide. 6 Appendix 6.1 Hardware included Name WL501 YC896 Function QCA4020 based module from Ehong Version 3.
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.
