Description

Atom Voice is a programmable smart speaker based on the ATOM design. Extremely compact at just 24 x 24 x 17 mm, it can stream music by connecting—via the ESP32’s wireless functions—to a phone, tablet, etc., or play designated streaming media over Wi-Fi. To simplify voice usage, Atom Voice integrates an STT (speech-to-text) service. Flash the dedicated firmware to enable it and issue voice commands to perform diverse operations. You can also write your own code to connect to cloud platforms such as AWS or Google; using the built-in microphone and speaker, Atom Voice can provide AI capabilities for voice control, smart interaction, IoT, and more. An on-board RGB LED (SK6812) clearly indicates connection status. In addition to serving as a smart speaker, it retains the control abilities of the ATOM series—you can connect external devices through the GROVE port. An M2 screw hole on the back facilitates mounting.

Note

Pin Usage Precautions

G19 / G22 / G23 / G33 have been predefined. Do not reuse these pins; otherwise the Atom Voice may be damaged.

Playback Precautions

To prevent damage to the Atom Vioice, avoid the following operations:

• Outputting a DC signal through the I2S channel
• Playing white noise for long periods
• Playing full-scale square-wave audio

Features

• Compact and lightweight
• Built-in STT service
• ESP32-based, supporting A2DP and BLE 4.0
• Wi-Fi protocol IEEE 802.11 b/g/n
• Integrated microphone and speaker
• RGB LED status indication
• GROVE expansion connector
• Audio recording and playback
• Independent programmable button
• Development platforms: Arduino, ESP-IDF / ADF

Includes

• 1 x Atom Vioice

Applications

Specifications

Specification	Parameter
SoC	ESP32-PICO-D4, 240 MHz, Dual Core, Wi-Fi
Flash	4 MB
Interface	1 x IR-TX, 1 x Button, 1 x Reset Button
PinOut	G21/G25/5V/GND, 3V3/G22/G19/G23/G33
RGB LED	SK6812
Speaker	0.8 W / NS4168 (I²S)
Microphone	SPM1423 (PDM)
Enclosure	Plastic (PC)
Product Weight	5 g
Gross Weight	10 g
Product Size	24 x 24 x 17 mm
Package Size	85 x 65 x 17 mm

Pin Usage Precautions G19 / G22 / G23 / G33 have been predefined. Do not reuse these pins; otherwise the Atom Vioice may be damaged.

Playback Precautions  To prevent damage to the Atom Vioice, avoid the following operations:

• Outputting a DC signal through the I2S channel
• Playing white noise for long periods
• Playing full-scale square-wave audio

Learn and Documents

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