Description
Atom Echo 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 Echo 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 Echo 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 Echo may be damaged.
Playback Precautions
To prevent damage to the Atom Echo, 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 Echo
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 |
