ATOM ECHO BT Audio

Driver Installation

Connect the device to the PC, open the device manager to install FTDI driver for the device. Take the win10 environment as an example, download the driver file that matches the operating system, unzip it, and install it through the device manager. (Note: In some system environments, the driver needs to be installed twice for the driver to take effect. The unrecognized device name is usually M5Stack or USB Serial. Windows recommends using the driver file to install directly in the device manager (custom Update), the executable file installation method may not work properly). Click here to download FTDI driver

For MacOS users, please tick System Preferences -> Security and Privacy -> General -> Allow downloadable apps from the following locations -> App Store and Approved Developer Options .

BT Speaker

The factory firmware is configured as a BT speaker by default. Users can connect devices such as mobile phones, tablets, PCs and so on with ATOM ECHO to output audio to ATOM ECHO for playback.

Firmware

How to use BT speakers

Turn on the power, the indicator light is red at this time, turn on the device BT, search for nearby devices, the BT device named M5_SPEAKER_T1 is ATOM ECHO. After clicking connect or pairing, ATOM ECHO will send out a BT pairing request. Confirm pairing to establish a BT connection. At this time, the indicator light turns green to indicate that the connection is normal. Once the connection is established, ATOM ECHO can be used as an audio playback device. (Currently the firmware does not support making and receiving calls as a hands-free device)

Since G19/G22/G23/G33 are used as I2S, they cannot be reused as other functional pins, otherwise there will be a risk of equipment damage. The firmware is compiled under the ESP-IDF platform, and ordinary users can directly download EasyLoader to burn. If advanced users need to develop other functions by themselves, they can perform ESP-IDF environment setup , factory firmware source code and BIN file click here to download , including the BIN file The programming address is 0x0000.