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Making a RF Wireless Communicator using Arduino uno and Arduino pro mini - KT864

Making a RF Wireless Communicator using Arduino uno and Arduino pro mini - KT864

SKU:KT864

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HARDWARE REQUIRED

SPECIFICATIONS

LCD

  • LCD Display Mode: STN, Positive, Transflective
  • Display Color: Deep Blue/ Yellow Green
  • Viewing Angle: 6H
  • Driving Method : 1/16 duty, 1/5 bias
  • Back Light : Yellow-Green LED backlight
  • Outline Dimension: 803615.8 MAX

CAUTIONS

  • The LCD panel is made by glass. Any mechanical shock (eg. dropping from high place) will damage the LCD module.
  • Do not add excessive force on the surface of the display, which may cause the Display color change abnormally.
  • The polarizer on the LCD is easily get scratched. If possible, do not remove the LCD protective film until the last step of installation.
  • Never attempt to disassemble or rework the LCD module.
  • Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol. Other solvents (eg.water) may damage the LCD.
  • When mounting the LCD module, make sure that it is free form twisting, warping and distortion.
  • Ensure to provide enough space(with cushion) between case and LCD panel to prevent external force adding on it, or it may cause damage to the LCD or degrade the display result.
  • Only hold the lCD module by its side. Never hold LCD module by add force on the heat seal ot TAB.
  • Never add force to component of the LCD module. It may cause invisible damage or degrade of the reliability.
  • LCD module could be easily damaged by static electricity. Be careful to maintain an optimum anti-static work environment to protect the LCD module.
  • When peeling off the protective film from LCD, static charge may cause abnormal display pattern. It is normal and will resume to nomal in a short while.
  • Take care and prevent get hurt by the LCD panel sharp edge.
  • Never operate the LCD module exceed the absolute maximum ratings.
  • Keep the signal line as short as possible to prevent noisy signal applying to LCD module.
  • Never apply signal to the LCD module without power supply.

  1. Receiver module parameter

  • Product Model MX-05V
  • Operating voltage: DC5V
  • Quiescent current: 4mA
  • Receiving frequency: 433MHZ
  • Receiver sensitivity:-105DB
  • Size: 30 * 14 * 7mm
  • An extra antenna is needed, please use spiral 50Ω a quarter wavelength antenna
  1. Transmitter module parameter
  • Product Model: MX-FS-03V
  • Launch distance :20-200 meters (different voltage, different results)
  • Operating voltage :3.5-12V
  • Dimensions: 19 * 19mm
  • Operating mode: AM
  • Transfer rate: 4KB/s
  • Transmitting power: 10mW
  • Transmitting frequency: 433M
  • Pinout from left to right: (DATA; VCC; GND)

SOFTWARE REQUIRED

Arduino IDE ((Programmable platform for Arduino boards)

You can download it from this link: https://www.arduino.cc/en/Main/Software

PIN DESCRIPTION

10K POTENTIOMETER

16*2 LCD DISPLAY

433 MHZ OR 315 MHZ RF TRANSMITTER + RECEIVER MODULE LINK

FTD1232 WITH FTD1232 CABLE

ARDUINO PRO MINI

STEP-1

How to upload sketches on Arduino Pro MINI.

  • Remove Atmega328 from Arduino UNO
  • Using male-to-female cables connect Pro MINI to UNO

RX-RX;

TX-TX;

RST-RST;

GND-GND;

VCC-+5V

  • Change in Tools – Board - Arduino Pro or Pro MINI
  • Upload sketch

STEP-1 RECEIVER CODE

Before uploading the given code , Download this Library

http://www.resistorpark.com/arduino-virtualwire-library-download/

#include //install this library from given link

#include //Install this inbuilt library

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

char cad[100];

int pos = 0;

void setup()

{

lcd.begin(16, 2);

lcd.setCursor(1, 0);

vw_setup(2000);

vw_rx_start();

}

void loop()

{

byte buf[VW_MAX_MESSAGE_LEN];

byte buflen = VW_MAX_MESSAGE_LEN;

int i;

if ( vw_get_message(buf, &buflen) )

{

if (pos < 2)

lcd.setCursor(0, pos);

else

{

pos = 0;

lcd.clear();

}

for (i = 1; i < buflen; i++)

{

lcd.print((char)buf[i]);

pos++;

}}}

STEP-3 TRANSMITTER CODE

#include //install this library

char cad[100];

int i=0;

void setup()

{

Serial.begin(9600);

vw_setup(2000);

Serial.print("End with "." each data");

}

void loop()

{

if( Serial.available() > 0)

{

cad[i] = Serial.read();

i++;

}

if( cad[i-1] == '.')

{

cad[i] = '';

i=0;

vw_send((byte *)cad, strlen(cad));

delay(400);

}

}



CIRCUIT DIAGRAM - RECEIVER

CIRCUIT DIAGRAM - TRANSMITTER

Connect the modules according to the given diagram

OUTPUT

Open serial monitor and type message and the text with Eg hello. Press enter message will show on your lcd 16*2.Print any message to the Serial Monitor window. End with point ".'
Press Enter