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Gravity: UART OBLOQ – IoT Module

SKU: TEL0118

Gravity: UART OBLOQ (ESP8266 WiFi to Serial) Module is a WiFi-to-Serial device for non-professional developers and makers. It supports standard MQTT IoT services (e.g., Microsoft Azure IoT), enabling quick IoT app building without complex IoT knowledge. Based on ESP8266, it features compact size, low cost, simple interface, plug-and-play, and stable operation under 3.3V~5V.

Front of OBLOQ IoT module with Microsoft Azure connectivity-DFRobot product sku:TEL0118 image.
  • Docs
  • Tech Specs

    • Specification

    Parameter Value
    Supply Voltage 3.3~5.0V
    Operating Current <240mA
    Interface Type Gravity UART 4PIN
    Baud rate 9600 bps
    Wireless mode IEEE802.11b/g/n
    Encryption type WPA WPA2/WPA2–PSK
    Wireless frequency 2.4GHz
    Product Size 35mm * 32mm / 1.38inch * 1.26inch
    Built-in agreement TCP/IP Protocol stack
    Weight 16g

    Pinout

    Num Label Description
    1 TX Serial port sender
    2 RX Serial port receiver
    3 GND GND
    4 VCC Power + (3.3/5V)

    FAQ

    • How to check the OBLOQ is working properly? I connected with Microbit and always got the red light on it. I also hold the reset button for a while.

      Red light means the wifi is not connected. Please check if you got the wifi id and password right. Instructions of using obloq could be found here: https://wiki.dfrobot.com/Gr...

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