The M5Stack ATOM ECHO is a Programmable Smart Speaker based on the M5 ATOM design made popular due to its ability to be used as a low-cost Home Assistant voice assistant! Its form factor is very compact with dimensions of just 24 x 24 x 17mm. Music can be played using the Bluetooth capabilities of the ESP32 from a mobile phone or tablet. The device can be programmed to access AWS, Baidu and other cloud platforms, using the built-in microphone and speaker for voice interaction, offering AI capabilities, voice control, storytelling, Internet of Things and other project possibilities. The speaker is embedded with an RGB LED (SK6812), which can visually display the connection status. In addition to being used as a Bluetooth speaker, it has the control ability of the Atom series. The screw holes on the back are also convenient for users to fix to panels. Note: please avoid the following conditions with M5Stack Atom Echo: * DC output from I2S channel * Playing white noise for a long time * Playing full square-wave audio Features * Compact * Supports STT services * Based on ESP32, Support A2DP, BLE 4.0 * 2.4G WiFi IEEE 802.11b/g/n * Built-in microphone and speaker * RGB LED status display indication * GROVE extension interface * Record and playback * Programmable key * Programming platform: Arduino, ESP-IDF/ADF Package Contents * 1x ATOM Echo Smart Speaker Development Kit Applications * Bluetooth Speaker * Voice control * IoT Specifications Resources Parameter SoC ESP-PICO-D4,240MHz, Dual Core, BLE,Wi-Fi Flash 4MB Interface 1x IR-TX,1x Function Button,1x Reset Button Pinout G21/G25/5V/GND, 3V3/G22/G19/G23/G33 RGB LED SK6812 Speaker 0.5W/NS4168 I2S Microphone SPM1423 PDM Net weight 5g Gross weight 10g Product Size 24*24*17mm Package Size 63*63*12mm Case Material Plastic ( PC ) Resources * Product Wiki https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2023-03-07 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2023-05-03 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2023-06-26 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2023-12-27 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2024-09-19 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2024-11-29 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2024-11-30 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2025-04-29 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2025-07-24 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2025-07-31 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2025-11-28 https://elecena.pl/product/22723887/m5stack-atom-echo-smart-speaker-dev-kit 2025-11-29