Set arduino slave address using dip switch (I2C)

hi,

i have program make slave read dip switch, set slave address using dip switch.
but nothing happen @ slave (it's slave not read dip switch address setting).

how set arduino slave address using dip switch?
thank you

slave program:-

code: [select]



#include <wire.h>

#define led_out 13
#define add 10                                                            // address initial
int address;

int = 0;                                                                      // pin configure 1 or 0 hardware setting
int button;

void setup() {
 pinmode(led_out, output);
 digitalwrite(led_out,low);  
 
 pinmode(a, input);                                                      // read dip switch, address hardware setting
 button = digitalread(a);
 address = add + button;
 
 serial.begin(9600);
 wire.begin(address);
 wire.onreceive(receiveevent);
}


void loop() {

}

void receiveevent(int howmany){
 while (wire.available() > 0){
   boolean b = wire.receive();
   serial.print(b, dec);
   digitalwrite(led_out, b);
 }
 serial.println();
}

master program:-

code: [select]



#include <wire.h>

#define button 10
#define address 11                                            //address setting slave,

void setup() {
 serial.begin(9600);           // start serial output
 pinmode(button, input);
 digitalwrite(address, high);
 wire.begin();
}

boolean last_state = high;                                        
void loop() {  
int button_state = digitalread(button);                                                      
 if (button_state != last_state){                    
   last_state = button_state;
   serial.println("start");
   wire.begintransmission(address);
   serial.println("beginning transmission");
   wire.send(button_state);
   serial.println("sent data");
   wire.endtransmission();
   serial.println("ended transmission");
 }
}  

how have wired switch, exactly?

Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Set arduino slave address using dip switch (I2C)

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