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项目作者： sachin0x18

项目描述 ：
Alexa support on ESP32 based simple-alexa board.
高级语言： C
项目地址: git://github.com/sachin0x18/esp32-simple-alexa.git
创建时间： 2018-10-04T05:31:33Z
项目社区：https://github.com/sachin0x18/esp32-simple-alexa
开源协议：
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Prerequisites

Please prepare your host system with the toolchain. Please see http://esp-idf.readthedocs.io/en/latest/get-started/index.html for the host setup.

Supported Hardware

The current application supports ESP32 based simple_alexa board (https://www.tindie.com/products/microwavemont/esp32-simple-alexabis/)

Prepare Images

If you already have the pre-compiled images flashed on the board, please jump to the next section (Device Configuration).

Clone all the repositories

  1. $ git clone --recursive https://github.com/espressif/esp-idf.git
  3. $ cd esp-idf; git checkout release/v3.1
  5. $ git clone https://github.com/espressif/esp-avs-sdk.git

Build and flash the project

  1. $ cp -r esp32-simple-alexa esp-avs-sdk/examples/
  3. $ cd esp-avs-sdk/examples/simple_alexa
  5. $ export IDF_PATH=/path/to/esp-idf
  7. $ export ESPPORT=/dev/cu.SLAB_USBtoUART (or /dev/ttyUSB0 or /dev/ttyUSB1 on Linux)
  9. $ make -j 8 flash monitor

Device Configuration

Please use the android app available here to configure the WIFI credentials and to associate Amazon Login with the device.

Enabling AWS [Optional]

To Enabling AWS IoT platform on ESP32 follow below steps:

  • Enable Amazon Web Services IoT Platform
    1. make menuconfig -> Component config -> Amazon Web Services IoT Platform

  • Enter AWS IoT Endpoint Hostname

    1. make menuconfig -> Component config -> Amazon Web Services IoT Platform -> AWS IoT Endpoint Hostname -> Enter the hostname

  • Copy certificate file (certificate.pem.cert and private.pem.key) to examples/simple_alexa/main/certs/ folder appropriately to communicate with AWS endpoint.

  • Subscribe to “test_topic/esp32” on AWS Console to see the messages.

Known Issues

  • When AWS is enabled, after provisioning the device takes time(15-20 sec) to connect to AWS.

Demo

  • Once the board boots up and successfully connects to the Wi-Fi network after provisioning, you can say ALEXA and speak or use “ALEXA_SW” button on Simple_Alexa board for conversation. For Tap-to-Talk, press and release the button and speak.
  • LED States:
    • WHITE: ESP32 in Provisioning Mode
    • CYAN: ESP32 in ALEXA Detection Mode
    • GREEN: Wakeword/Tap-to-Talk detected and listening
    • YELLOW: ALEXA Speaking
  • You can connect any external speaker/headphone with 3.5mm connector to PHONE JACK to listen to responses.
  • you can now ask any command like:
    • tell me a joke
    • how is the weather?
    • will it rain today?
    • Sing a song
    • Play TuneIn radio
    • Set volume level to 7
  • Each time Alexa is detected the WakeWord count is incremented on AWS IoT console
  • Press and Hold “ALEXA_SW” button for 5 seconds to reset the board to factory settings