AtomU ESP32 Development Kit with USB-A

SKU:K117

Regular price $12.50

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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:

Includes

  • 1x ATOM U

Application

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

Specification

Specifications Parameters
ESP32-PICO-D4 240MHz dual core, 600 DMIPS, 520KB SRAM, 2.4G Wi-Fi
Microphone SPM1423
Microphone sensitivity 94dB SPL@1KHz Typical value: -22dBFS
Microphone signal-to-noise ratio 94dB SPL@1KHz, A-weighted Typical value: 61.4dB
Standby working current 40.4mA
Support input sound frequency 100Hz ~ 10KHz
Support PDM clock frequency 1.0 ~ 3.25MHz
Net weight 8.4g
Gross weight 10.6g
Product size 52 * 20 * 10mm
Packing size 68 * 21 * 11mm

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
ATOM U G5 G19 3.3V GND
SPM1423 MIC_CLK MIC_DATA VCC GND
  • IR & SK6812 & BUTTON
ATOM U G12 G27 G39
IR TX / /
SK6812 / DIN /
BUTTON / / SW
  • HY2.0-4P
ATOM U G26 G32 5V GND
PORT-A SDA SCL VCC GND

Schematic

Example

Arduino

LEARN AND DOCUMENTS

  • DOCUMENTS
  • Customer Reviews

    Based on 3 reviews
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    N
    Nikolay Khomenko

    AtomU ESP32 Development Kit with USB-A

    L
    Luis Carlos Silva

    AtomU ESP32 Development Kit with USB-A

    W
    Winford
    Power and elegance in a wonderfully small package.

    I love this tiny device! There is so much tech crammed into this perfectly designed form factor, it blows my mind. I have been using mine to work on development of AtomVM - an exciting new development platform that runs Erlang and Elixir on the ESP32 (project can be found on GitHub), and this has been the perfect device to keep with me so I can continue development work when I travel. There are so many potential uses for this device using just the onboard peripherals I look forward to exploring all of those possibilities.

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