Description

ATOM U is a compact and low-power consumption speech recognition IoT development kit. Powered by an ESP32 chipset, it features two low-power Xtensa 32-bit LX6 microprocessors with a main frequency of up to 240MHz. With its built-in USB-A interface, IR emitter, and programmable RGB LED, ATOM U offers a versatile and user-friendly development experience.

ATOM U is designed for plug-and-play convenience, making program uploading and downloading a breeze. It integrates Wi-Fi connectivity and a high-quality digital microphone (SPM1423, PDM) for clear sound recording. This makes it perfectly suited for Human-Machine Interaction (HMI) and Speech-to-Text (STT) applications.

With ATOM U, you can take advantage of the UIFlow graphical programming platform, enabling scripting-free development and seamless cloud integration. It is fully compatible with popular development platforms such as Arduino, MicroPython, and ESP32-IDF, allowing you to quickly build a wide range of applications.

ATOM U offers high integration with various components, including a USB-A port for programming and power supply, an IR emitter, programmable RGB LED (x1), and a button (x1). Its finely tuned RF circuit ensures stable and reliable wireless communication. Furthermore, ATOM U provides strong expandability, giving you easy access to M5Stack's comprehensive hardware and software system. This opens up endless possibilities for building innovative IoT solutions and exploring new horizons in the world of embedded development.

Product Features

• 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:
  • UIFlow
  • MicroPython
  • Arduino

Includes

• 1x ATOM U

Application

• IoT controller
• Voice recording, Speech-to-Text services

Specification

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

PinMap

• SPM1423 - PDM

• IR & SK6812 & BUTTON

• HY2.0-4P

Schematic

Related Links

• Datasheet
  • ESP32-PICO
  • SPM1423

Example

Arduino

• ATOM U - Examples
• ATOM U - STT

LEARN AND DOCUMENTS