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RC - based measuring station

This is ongoing project of the measuring station for RC car

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The main goal of this project is to build a measuring station for RC car. The following flowchart shows the connections between the modules of the project. The individual electronic modules are connected via different interfaces i.e.: UART, SPI and analog and digital inputs and outputs.

This mini-measurement station allows you to measure the following physical quantities:

  • temperature (DHT11)
  • humidity (DHT11)
  • LPG, Propane, Hydrogen and Methane (MQ-2)
  • position coordinates (GPS NEO-8M)

The measurement data are stored on the microSD card and you can also get access to them from your smartphone, tablet, or laptop. For more information on how to build this measurement station, see this instruction.

  • 1 × Arduino Mega 2560
  • 1 × GPS NEO-8M
  • 1 × MQ-2 gas sensor
  • 1 × DHT11 temperature and humidity sensor
  • 1 × Micro SD shield
  • 1 × Active buzzer
  • 1 × RGB LED
  • 1 × Brushless RC Truck - Desert Buggy Style Potentiometers, Trimmers, Variable Resistors / Trimmer Potentiometers

  • 1

    In this project as a mobile platform I used brushless RC truck - Desert Buggy Style which is fast and solid. You may as well use another RC car if it is large enough to fit our measuring station and extra battery.

    The function of the control unit in the measurement station is performed by Arduino Mega 2560 that is able to handle multiple sensors without problems. All sensors needed in this project beyond the GPS module can be found here. I closed all the electronics in a black plastic housing with dimensions: 124 x 71 x 38 mm. Additionally I added a micro usb port for connecting power bank.

    In the next step you need to connect the power supply lines of all sensors to the Arduino GND and 5V pins. This is best done using a universal prototyping PCB. Adding additional filter capacitors is also recommended.

    To be able to use my sample code you must make the following wired connections:

    Arduino Mega 2560GPS Neo - 8M
    TX2 (16)RX
    RX2 (17)TX
    DHT11 Temperature and humidity
    Pin 8DATA
    MQ-2 Gas sensor
    A0A0
    RGB LED
    Pin 3R
    Pin 4G
    Pin 5B
    Active Buzzer
    Pin 6S (Signal)
    Micro SD shield
    Pin 50MISO
    Pin 51MOSI
    Pin 52CLK
    Pin 53CS

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