Car Backing Up Wifi IOT Kit | Ultrasonic Distance Sensor | Node MCU

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Product Code: WEIOTKIT-06

Availability: In stock

Product Features

HC SR 04 Ultrasonic Distance Sensor

  • Working voltage: 5v(dc)
  • Output signal: Electric frequency signal, high level 5v, low level 0v
  • Detection distance: 2 cm to 450 cm
  • High precision: Up to 2mm

Node MCU

  • ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module
  • Built-in Micro-USB, with flash and reset switches, easy to program
  • Full I/O port
  • Wireless 802.11 supported, direct download no need to reset
  • Arduino compatible, works great with the latest Arduino IDE/Mongoose IoT/Micropython
  • Finally, programable WiFi module.
  • Arduino-like (software defined) hardware IO.
  • Can be programmed with the simple and powerful Lua programming language or Arduino IDE.
  •  USB-TTL included, plug & play.
  • 10 GPIOs D0-D10, PWM functionality, IIC and SPI communication, 1-Wire and ADC A0 etc. all in one board.
  • Wifi networking (can be used as access point and/or station, host a web server), connect to internet to fetch or upload data.
  • Event-driven API for network applications.
  • PCB antenna


    Price Rs. 1,500.00


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    HC SR 04 Ultrasonic Distance Sensor

    • The hc-sr04 ultrasonic sensor uses sonar to measure distance to an object.
    • It offers excellent range accuracy and stable readings in an easy-to-use package.
    • Its operation is not affected by sunlight or black material like sharp range finders are (soft materials like cloth can be difficult to detect).
    • Module main technical parameters.
    • Working voltage: 5v(dc).
    • Static current: Less than 2ma.
    • Output signal: Electric frequency signal, high level 5v, low level 0v.
    • Sensor angle: Not more than 15 degrees.
    • Detection distance: 2 to 450 cm.
    • High precision: Up to 0. 3cm.
    • Input trigger signal: 10us ttl impulse.
    • Echo signal: Output ttl pwl signal mode of connection, vcc, trig(t), echo(r), gnd.
    • The basic operation principle is below, use io port trig to trigger ranging.
    • It needs 10 us high level signal at least module will send eight 40khz square wave automatically and will test if there is any signal returned.
    • If there is signal returned, output will be high level signal via io port echo.
    • The duration of the high level signal is the time from transmitter to receiving with the ultrasonic.
    • Testing distance = duration of high level x sound velocity(340m/s) / 2 you can use the above calculation to find the distance between the obstacle and the ultrasonic module.

    Node MCU

    • An open-source firmware and development kit that helps you to prototype your IOT product within a few Lua script lines.
    • Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled.
    • NodeMCU is the fast leading edge low cost technology to WiFi. Modern high level mature LUA based technology.
    • It is an integrated unit with all available resources on board.
    • It is super simple to complement your existing Arduino projects or any development board that has I/O pins available.
    • Modern Internet development tools such as Node.js can take advantage the NodeMCU with the built-in API to put your idea on the fast track immediately.
    • NodeMCU is built based on the mature ESP8266 technology to take advantage the abundant resources available on the web.
    • NodeMCU has ESP-12 based serial WiFi integrated on board to provide GPIO, PWM, ADC, I2C and 1-WIRE resources at your finger tips, built-in USB-TTL serial with super reliable industrial strength CH340 for superior stability on all supported platforms.

    HC SR 04 Ultrasonic Distance Sensor

    Brand Name


    Item Shape


    Item Weight

    11.0  grams

    Manufacturer Series Number


    Number of Items


    Part Number


    Node MCU

    Brand Name



    0715120173885 , 0710824986076 , 1904811721323 , 0710824985499

    Item Weight

    50.0  grams

    Model Number


    Part Number



    710824985499 , 715120173885 , 710824986076


    5.50  volts

    In the box

    • HC SR 04 Ultrasonic Distance Sensor
    • NodeMCU
    • Buzzer


    • NA