"Alexa by car", actually use Amazon Echo Auto

Operating environment required for smartphones

This time, let's use it in combination with the iPhone XR.The initial setup is the same as the other Echo, and it is set up with "Add Device" from the smartphone app "Amazon Alexa".If you want to make a sound by connecting with a car audio with a car audio and Bluetooth, you will need a Bluetooth pairing in the middle of the setup.In that case, it would be better to stop the car in a safe place such as a parking lot and work.

Actually, my car has only a minimum car audio, and I usually put Bluetooth speakers in the car and listen to music in combination with smartphones.Echo Auto also wanted to connect to the speaker with Bluetooth, but there is no display on the Echo Auto side and there is no function to select the opponent on the Bluetooth speaker side, so it is not possible to directly pair the Echo Auto and Bluetooth speakers.rice field.

However, there is an analog audio input on the speaker side, so I decided to connect it to it.In addition, as will be described in detail later, the smartphone can be bridged and connected by Bluetooth, so it can be used for various patterns.

When the setup is completed, Echo Auto and smartphones are automatically connected with Bluetooth.The Echo in the home is directly connected to the cloud with Wi-Fi, but Echo Auto is connected to the cloud using smartphone communication means.In this case, the communication means is not only a 4G line, but also a Wi-Fi with a smartphone.

But it doesn't just borrow communication means, but what Echo Auto is actually moving seems to be Amazon Alexa in a smartphone.For example, taking music playback as an example, Echo Auto receives voice commands, but the subsequent music playback is Amazon Alexa in smartphones.Therefore, you can skip the music playback stop by operating the smartphone side, and you can control the volume.

Also, if you connect a new Bluetooth speaker with a smartphone, the regeneration teacher will move there.The same is true for Bluetooth earphones.Therefore, in the circumstances inside the car, the Bluetooth speaker in the car sounds either on a wired analog line or a Bluetooth connection with a smartphone.In addition, if the car audio is Bluetooth compatible, Bluetooth connection can be performed directly with Echo Auto.There is no problem with "how to ring".

I tried to imitate the flow of commands and data, so I would like to understand the general mechanism.