ATOM U is a compact low-power consumption speech recognition IoT development kit. It adopts an ESP32 chipset, equipped with 2 low-power Xtensa 32-bit LX6 microprocessors with the main frequency of up to 240 MHz. Built-in USB-A interface, IR emitter, programmable RGB LED. Plug-and-play, easy to upload and download programs. Integrated Wi-Fi and digital microphone SPM1423 (I2S) for the clear sound record. suitable for HMI, Speech-to-Text (STT).
ATOM U supports UIFlow graphical programming platform, scripting-free, cloud push; Fully compatible with Arduino, MicroPython, ESP32-IDF, and other mainstream development platforms, to quickly build various applications.
ATOM U contains a USB-A port for programming/power supply, IR emitter, programmable RGB LED x1, button x1; Finely tuned RF circuit, providing stable and reliable wireless communication.
ATOM U is easy access to M5Stack's hardware and software system.
- ESP32-PICO-D4 (2.4GHz Wi-Fi dual mode)
- Integrated programmable RGB LED and button
- Compact design
- Built-in IR emitter
- Expandable pinout and GROVE port
- Development platform:
|ESP32-PICO-D4 ||240MHz dual core, 600 DMIPS, 520KB SRAM, 2.4G Wi-Fi |
|Microphone ||SPM1423 |
|Microphone sensitivity ||94 dB SPL@1 KHz Typical value: -22 dBFS |
|Microphone signal-to-noise ratio ||94 dB SPL@1 KHz, A-weighted Typical value: 61.4 dB |
|Standby working current ||40.4 mA |
|Support input sound frequency ||100 Hz ~ 10 KHz |
|Support PDM clock frequency ||1.0 ~ 3.25 MHz |
|Weight ||8.4 g |
|Product size ||52 x 20 x 10 mm |