1. Initialize and download the code base
 - Example for RaspberryPi:
 $ repo init -u https://code.rdkcentral.com/r/manifests -m rdkv-nosrc.xml -b thunder-next
 $ repo sync

2. Download the meta-rdk-voice layer in project root
 $ git clone https://code.rdkcentral.com/r/components/generic/rdk-oe/meta-rdk-voice

3. Enable the below DISTRO feature to build AVS plugin
 $ vi meta-rdk-voice/conf/layer.conf
 - enable the below commented line
 #DISTRO_FEATURES_append = " alexa-plugin"
4. Optionally if wanted to use MIC based implementation (Ignore if using BLE voice remote)
 $ vi meta-rdk-voice/conf/layer.conf
 - enable the below commented line
 #DISTRO_FEATURES_append = " alexa_ffv"

 - Follow the section (Enable Keyword Detector) for using amazon provided KWD

 # Please follow the steps mentioned in section #3.2 to enable USB audio kernel parameters (Not required for RaspberryPI).

5. Optionally For the external source builds (such as some Broadcom platforms) add below line in manifest/auto.conf
 - In <Manifest>.xml
   <project name="components/generic/avs/alexa_skill_mapper" revision="rdk-next"/>
 - In auto.conf (where brcmexternalsrc is enabled)
   BRCMEXTERNALSRC_pn-wpe-alexa += "components/generic/avs/alexa_skill_mapper"
   SRCPV_pn-wpe-alexa = "${BRCMEXTERNAL-SRCPV-CMF}"
 $ repo sync
6 .Build the image target
 - Example for RaspberryPi
 $ source meta-cmf-raspberrypi/setup-environment
 ### select meta-cmf-raspberrypi/conf/machine/raspberrypi-rdk-thunder-mc.conf ###
 $ bitbake rdk-generic-mediaclient-image

1. Initialize and download the code base
 - Example for RaspberryPi:
 $ repo init -u https://code.rdkcentral.com/r/manifests -m rdkv-nosrc.xml -b thunder-next
 $ repo sync

2. Download the meta-rdk-voice layer in project root
 $ git clone https://code.rdkcentral.com/r/components/generic/rdk-oe/meta-rdk-voice

3. Optionally if wanted to use MIC based implementation (Ignore if using BLE voice remote)
 $ vi meta-rdk-voice/conf/layer.conf
 - enable the below commented line
 #DISTRO_FEATURES_append = " alexa_ffv"

 # Please follow the steps mentioned in section #3.2 to enable USB audio kernel parameters (Not required for RaspberryPI).

4. Optionally For the external source builds (such as some Broadcom platforms) add below line in manifest/auto.conf
 - In <Manifest>.xml
   <project name="components/generic/avs/alexa_skill_mapper" revision="rdk-next"/>
 - In auto.conf (where brcmexternalsrc is enabled)
   BRCMEXTERNALSRC_pn-wpe-alexa += "components/generic/avs/alexa_skill_mapper:git/VoiceToApps"
   SRCPV_pn-wpe-alexa = "${BRCMEXTERNAL-SRCPV-CMF}"
 $ repo sync
5 .Build the image target
 - Example for RaspberryPi
 $ source meta-cmf-raspberrypi/setup-environment
 ### select meta-cmf-raspberrypi/conf/machine/raspberrypi-rdk-thunder-mc.conf ###
 $ bitbake rdk-generic-mediaclient-image

1. To use pryon lite KWD engine for devices with MIC input
 Note: Source code need to be obtained from amazon separately
2. Set the KWD support flag to "ON"
  $ vi meta-rdk-voice/recipes-wpe/wpeframework/include/avs.inc
    AVS_KWD_SUPPORT ?= "ON"
3. include the KWD detector recipe to build.
 - enable the commented line 
 #PREFERRED_PROVIDER_virtual/alexa-kwd-detector = "pryonlite"
4. Create a bbappend file in platform layer and provide artifact location
e.g. 
 $ vi meta-rdk-oem-<OEMNAME>/meta-<MACHINE>/recipes-avs/pryonlite/pryonlite_2.3.0.bbappend
   SRC_URI  = "file://pryon_lite_2.3.0-metrological-2019.12.23.2344.zip"

# If FFV profile is enabled (DISTRO_FEATURES_append = " alexa_ffv") & we want to simulate audio input using a USB mic the below kernel configuration need to be enabled for the platforms:

CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_USB_AUDIO=m

# After enabling the above kernel configs, recompile the kernel so that the support for USB audio will be enabled

$ vi meta-rdk-voice/conf/layer.conf
 - enable the below commented DISTRO_FEATURE
  #DISTRO_FEATURES_append = " alexa_smart_screen"

1. Enable DISTRO options
$ vi meta-rdk-voice/conf/layer.conf
 - enable the below commented DISTRO_FEATURE
  #DISTRO_FEATURES_append = " voice-chrome"
2. Provide artifact location
 - Add an .bbappend file for alexa-ss-sdk and over-write the SRC_URI
e.g.
 $ vi meta-rdk-oem-OEMNAME/meta-<MACHINE>/recipes-avs/alexa-smart-screen/alexa-ss-sdk_git.bbappend
   SRC_URI_remove = "https://operator-artifact-url.com/location/SmartScreenSDKVoiceChrome-2.1.tar;name=voicechrome;subdir=voicechrome"
   SRC_URI += "file://SmartScreenSDKVoiceChrome-2.1.tar;name=voicechrome;subdir=voicechrome"

1. Login to the device
 $ ssh root@<RDKV-Client-IP>

2. Edit the Configuration file
 $ cd /usr/share/WPEFramework/AVS
 $ vi AlexaClientSDKConfig.json
     "deviceInfo":{
        // Unique device serial number. e.g. 123456
        "deviceSerialNumber":"<SERIAL_NO>",
        // The Client ID of the Product from developer.amazon.com
        "clientId":"<CLIENT_ID>",
        // Product ID from developer.amazon.com
        "productId":"<PRODUCT_ID>",
        // The name of the device manufacturer.
        "manufacturerName": "<MANUFACTURER_NAME>",
        // The description of the device which should contain the manufacturer name or how the device is connected.
        "description": "<DESCRIPTION"
    },

$ cd /home/root
$ vi Alexa_SDK/Integration/AlexaCurl.json
Set below GPIO to appropriate value
   "PinOne":"9",
   "PinTwo":"10",
   "PinThree":"11"

Example: For RaspberryPi we can use the Traffic light LED where GPIO PIN 9, 10, 11 represents the Red, Yellow & Green LEDS 

##################################
#       NOT YET AUTHORIZED       #
##################################
#       To authorize, browse to: 'https://amazon.com/us/code' and enter the code: EXEA99
###############################################################
#       Checking for authorization (1)...       #
################################################# 

########################################
#       Alexa is currently idle!       #
########################################