AtomU - ESP32 IoT development module with USB-A connector - M5Stack K117

Development module from M5Stack - AtomU . It is a development module for prototyping and creating IoT applications. It was equipped with a dual-core ESP32-PICO-D4 microcontroller with 2.4 GHz WiFi wireless communication. The module also has a digital microphone SPM1423 (I2S) ensuring clear sound recording.

AtomU - IoT ESP32 development module with USB-A connector - M5Stack K117.

• Chipset: ESP32-PICO-D4 (dual band WiFi 2.4 GHz and Bluetooth)
• Programmed with the UIFlow graphic editor
• Equipped with utility buttons and a programmable LED diode
• Built-in IR emitter
• Expandable pinout and Grove port
• It can be used as an IoT controller, a module for voice recording or speech-to-text conversion

• AtomU - IoT ESP32 development module with USB-A connector - M5Stack K117 - 1 piece

• Microcontroller: ESP32-PICO-D4 dual-core with 2.4 GHz WiFi communication, 600 DMIPS, 520 kB SRAM
• Flash memory: 4 MB
• Built-in microphone chip: SPM1423
• Mic sensitivity: 94dB SPL at 1kHz (Typical value: -22dBFS)
• SNR (Signal to Noise Ratio): 94 dB SPL at 1 kHz (Typical value: 61.4 dB)
• Standby current consumption: 40.4 mA
• Input audio frequency: 100 Hz to 10 kHz
• PDM clock frequency support: 1Hz to 3.25MHz
• Connectors: USB type A for power and programming, Grove for connecting peripheral devices
• Supported development platforms: UIFlow, MicroPython, Arduino
• Module dimensions: 52 x 20 x 10 mm
• Weight: 8.4 g

M5Stack series modules are equipped with Grove connectors.

AtomU - module by M5Stack.

Thanks to their miniature dimensions, the M5Stack devices can be successfully used in IoT smart home systems as well as intelligent toys and robots. The very process of connecting sensors and extensions to the device is very simple, the Grove connectors and the GPIO connector on the back of the device are used for this purpose. Thanks to the manufacturer's use of Grove connectors, we can also use sensors from the Grove system . Working with the device does not require coding knowledge from us, all system functions can be programmed using UIFlow, which is a proprietary, graphical programming language designed for M5Stack devices .

• The website of the manufacturer: M5Stack K117
• User Guide
• Technical documentation of ESP32-PICO
• Technical documentation SPM1423
• AtomU - Arduino examples
• AtomU - STT