SKU:K117



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 240MHz. 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(PDM) for the clear sound record. suitable for HMI, Speech-to-Text (STT).
LOW-CODE DEVELOPMENT:
HIGH INTEGRATION:
STRONG EXPANDABILITY:
| Resources | 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 |
| Product Size | 52 * 20 * 10mm |
| Package Size | 114 * 64 * 22mm |
| Product Weight | 8.4g |
| Package Weight | 10.6g |



SPM1423 - PDM
IR & SK6812 & BUTTON
HY2.0-4P