Custom RC Transmitter


hi, everyone!
i building rc transmitter , receiver using rf 433mhz built arduino. need o have transmitter (on pin 12) reading 4 analog pins have position of x , y-axes on joysticks.

any appreciated! thanks!

here have far;

// suffix indicates joystick located on left-handside on breadboard
// b suffix indicates joystick located on right-handside on breadboard
int ypositiona = a0;
int xpositiona = a1;
int ypositionb = a2;
int xpositionb = a3;
int buttona = 1;
int buttonb = 2;
int data = 12;


void setup()
{
  serial.begin(9600);
  pinmode(ypositiona, input); // following 4 set input analog
  pinmode(xpositiona, input);
  pinmode(ypositionb, input);
  pinmode(xpositionb, input);
  pinmode(buttona, input); // following 2 set input digital
  pinmode(buttonb, input);
  pinmode(data, output); // data output on digital (pwm) pin 12
 
 
}

void loop()
{
 ypositiona = analogread; //will 0 1023
 xpositiona = analogread;
 ypositionb = analogread;
 xpositionb = analogread;
 buttona = digitalread; //0 or 1
 buttonb = digitalread;
 
 data = analogwrite(xpositiona);
 data = analogwrite(xpositionb);
 data = analogwrite(ypositiona);
 data = analogwrite(ypositionb);
}

code: [select]
ypositiona = analogread; //will 0 1023
wrong syntax analogread()
code: [select]
buttona = digitalread; //0 or 1
wrong syntax digitalread()
code: [select]
data = analogwrite(xpositiona);
 data = analogwrite(xpositionb);
 data = analogwrite(ypositiona);
 data = analogwrite(ypositionb);

what expecting analogwrite (used wrong syntax in case) , if why assign same variable ?

have looked @ examples in ide see how functions used ?


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