[EOL] AtomU ESP32 Development Kit with USB-A

This product is EOL. Please purchase new version AtomS3U 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 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 Related Links Datasheet ESP32-PICO SPM1423 Example Arduino ATOM U - Examples ATOM U - STT LEARN AND DOCUMENTS DOCUMENTS