TX RX 433 question

You could still use an encoder and decoder. Then just set up the bits that you wish to transmit. I have already used this kind of transmitter and receiver but I didn't have that problem. It could interfere with any other signals. Encoder and decoder are best for this application. Cheers

You could still use an encoder and decoder. Then just set up the bits that you wish to transmit. I have already used this kind of transmitter and receiver but I didn't have that problem. It could interfere with any other signals. Encoder and decoder are best for this application. Cheers

Thanks for your reply.. I was actually able to make it work.. I used processing to graph the signal using direct wire connection, took a screenshot of it, then I switched to rf and "tuned" the module using a screw driver until the graphs looked the same.. (see pic)

Please tell me more about the encoder/decoder and how it works as I am a noob to this.. or if you have anyreference you might want to share, that would be helpful. I'm currently using vwire to send stuff to the receiver.

Thanks!

AG

AG, that's a innovative way to tuning these units!!!  Can you point to more information on how you did this. How about your Processing code???

Thanks!

Regards, Terry King

...In The Woods In Vermont

terry@yourduino.com

just set the tx to keep sending the same value (just mod the code above).

And here's the code I used for processing.. I don't remember where I got it.. But I used it before for building a heartbeat monitor.

/*
  Graph

A simple example of communication from the Arduino board to the computer:
the value of analog input 0 is sent out the serial port.  We call this "serial"
communication because the connection appears to both the Arduino and the
computer as a serial port, even though it may actually use
a USB cable. Bytes are sent one after another (serially) from the Arduino
to the computer.

You can use the Arduino serial monitor to view the sent data, or it can
be read by Processing, PD, Max/MSP, or any other program capable of reading
data from a serial port.  The Processing code below graphs the data received
so you can see the value of the analog input changing over time.

The circuit:
Any analog input sensor is attached to analog in pin 0.

created 2006
by David A. Mellis
modified 14 Apr 2009
by Tom Igoe and Scott Fitzgerald

This example code is in the public domain.

http://www.arduino.cc/en/Tutorial/Graph
*/

// Graphing sketch


// This program takes ASCII-encoded strings
// from the serial port at 9600 baud and graphs them. It expects values in the
// range 0 to 1023, followed by a newline, or newline and carriage return

// Created 20 Apr 2005
// Updated 18 Jan 2008
// by Tom Igoe
// This example code is in the public domain.

import processing.serial.*;

Serial myPort;        // The serial port
int xPos = 1;         // horizontal position of the graph

void setup () {
// set the window size:
size(1000, 800);       

// List all the available serial ports
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my  Arduino, so I open Serial.list()[0].
// Open whatever port is the one you're using.
myPort = new Serial(this, Serial.list()[0], 1200);
// don't generate a serialEvent() unless you get a newline character:
myPort.bufferUntil('\n');
// set inital background:
background(0);
}
void draw ()
{
// everything happens in the serialEvent()
}
float prevByte;
void serialEvent (Serial myPort)
{
   // get the ASCII string:
   String inString = myPort.readStringUntil('\n');

   if (inString != null)
     {
     // trim off any whitespace:
     inString = trim(inString);
    
     // convert to an int and map to the screen height:
     float inByte = float(inString);
     inByte = map(inByte, 0, 255, 250, height+250);

     // draw the line:
     stroke(0,127,200);
    // ellipse(xPos, height - inByte*8,1,1);
     line(xPos-1, prevByte, xPos, inByte);

     println(inByte);
     prevByte = inByte;
     // at the edge of the screen, go back to the beginning:
     if (xPos >= width)
       {
       xPos = 0;
       background(0);
       }
    
     else
       {
       // increment the horizontal position:
       xPos++;
       }
     }
   
   }

Goodluck!

Hey Brother,

Yeah, that's exactly what I'm using. It works great