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USB iNode MCU USB microcontroller - NodeMCU ESP32 - WebUSB

Index: INO-14208 EAN: 5904422322014

The USB microcontroller (MCU) with micro-SD memory card reader. Device with modifiable functionality that runs under the operating system of NodeMCU ESP32. It connects two wireless technologies: Bluetooth 4.1 and wi-fi. Version WebUSB.

USB iNode MCU USB microcontroller - NodeMCU ESP32 - WebUSB
€37.90 -10%
€27.73 tax excl.
Lowest price 30 days: €34.11
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Manufacturer: iNode

Product description: Microcontroller USB iNode MCU USB

Running under the NodeMCU ESP32operating system, microcontrollerUSB is the device with modifiable functionality. NodeMCU is a system based on the codeopen source LUAfor the ESP32 SOC system from the Espressif. Wireless communications provide the standards of Bluetooth 4.1andwi-fi. Software NodeMCU is digitally signed and can only be replaced via OTA.


Unlike other modules with ESP32, to the module can be uploaded onlyprepared by the manufacturer, NodeMCU firmware, as itis digitally signed. In version WebUSB iNode MCU USB, possible is a direct connection from LUA script with Google Chrome browser. The microcontrollerWebUSB is a kind of bridge between the USBdevice and browsers.


The price of the basic module is PLN 139 (not included in the offer). The subject of the sale is the module in the extended version of WebUSB.

Examples of application of the microcontroller iNode MCU USB

    • Communication with BLE devices
    • Alarm system, protection of property
    • Monitoring of patients
    • The care of the elders
    • Automation for home

Because this is a new product, we will be grateful for
all questions, comments and suggestions of the clients concerning it.

Technical specification of stick iNode MCU USB


Parameter Range

Radio parameters

  • The reader of memory cards: yes
  • WebUSB: yes
  • RX / TX
    • Bluetooth / BLE: 2402-2480 MHz, sensitivity: @30,8 % PER: -97 dBm
    • Wifi: 2412 - 2472 MHz, 2422 - 2462 MHz
  • Output power (max.):
    • Bluetooth: 6,72 dBm
    • BLE: 8,23 dBm
    • Wi-fi: 16,81 dBm (802.11 b); 17,60 dBm (802.11 g); 18,04 dBm (802.11n20); of 17.85 dBm (802.11n40)
  • Modulation:
    • Bluetooth: GFSK, π/4-DQPSK, 8DPSK
    • BLE: GFSK
    • Wi-fi: DSSS, OFDM
  • Antenna:
    • internal PCB, type MIFA, 1,6 dBi

The working parameters

  • configurable with a PC via Bluetooth:
    • access data for the wi-fi network
    • LUA scripts controlling the device
    • replacement of NodeMCU firmware via OTA (wi-fi)

Node MCU

  • Built-in modules:
    • ADC, Bit, Bluetooth HCI interface, CRYPTO, Encoder, Tool, FOTA, GPIO, HTTP, LEDC, MQTT, Net, Node, SD-MMC, Struct, Timer, Uart, wi-fi, time


  • Voltage: 5 V DC,
  • Current: from 50 mA to 160 mA depending on operation mode and version


  • Material: Plastic
  • Dimensions: 55 x 20 x 15 mm

The rest

  • Work signaling in setup mode using the LEDs
  • Connector type: USB 2.0
  • FLASH memory for the LUA scripts: about 800 KB
  • MicroSD card reader: up to 32 GB, support for FAT
  • WebUSB:
    • direct communication with Google Chrome browser
    • Basic UART: 115200 bps, 8N1 - communication with Node MCU
    • Additional UART 921600 bit/s 8N2 - communication with LUA app
  • Operating temperature: -20 to 45°C
  • Humidity: 20 to 80 % RHG
  • Weight: 15 g


  • Google Chrome, Android OS, Linux, Windows 10


  • ESP32


Package width 5.5 cm
Package height 8 cm
Package depth 1.5 cm
Package weight 0.012 kg

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