Wiring the IR Receiver

[chattycat14]

We're having a problem, we get a response from the IR board saying that the digital input has a value of 1 when it should be a 0. What should we do?

[ham90mack]

Make sure you are using either the 12 volt robot battery or the digital input power pins (which use the robot battery), otherwise the signal is not being grounded properly.

[chattycat14]

Originally Posted by ham90mack

Make sure you are using either the 12 volt robot battery or the digital input power pins (which use the robot battery), otherwise the signal is not being grounded properly.

Under the online window it changes from 0 to 1 when the button is pressed, but when the actual program is downloaded it retains the value of 1.

[RyanN]

Originally Posted by chattycat14

Under the online window it changes from 0 to 1 when the button is pressed, but when the actual program is downloaded it retains the value of 1.

Online window??? Anyway, here is the code we're using. It has some safety built in, and shows the state on the OI.

//Variables should be declared at the beginning at the program
int mode = 0; //Set it to zero so the robot won't move!
int modea;
int irerror;
int errorloop;



//Switches off all the LEDs on the OI
Switch1_LED = 0;
Switch2_LED = 0;
Switch3_LED = 0;
Relay1_red = 0;
Relay2_red = 0;
Relay1_green = 0;
Relay2_green = 0;
Pwm1_green = 0;
Pwm2_green = 0;
Pwm1_red = 0;
Pwm2_red = 0;
/*The following code will check to make sure the IR sensor is not malfunctioning, 
or it is not disconnected, as no more than one button can be triggered at a time.*/
mode = 0; //If there is no signal from the IR board later in the code, then disable the robot
irerror = 1;
if ((rc_dig_in03 + rc_dig_in04 + rc_dig_in05 + rc_dig_in06) < 3) 
{ 
	irerror = 0; //Tells the disable program that there is no error detected
	if (rc_dig_in03 == 1)
	{
		modea = 1;	//Set to Mode 1 (1st button)
	}
	if (rc_dig_in04 == 1)
	{
		modea = 2;	//Set to Mode 2 (2nd button)
	}
	if (rc_dig_in05 == 1)
	{
		modea = 3;	//Set to Mode 3 (3rd button)
	}
	if (rc_dig_in06 == 1)
	{
		modea = 0;	//EMERGENCY STOP (4th button)
	}
	mode = modea;
}
//The following are the certain autonomous programs
//Each mode acts like a different program.  

if (mode == 1) //Mode 1
{
	printf("Mode 1 %d\r");
	Switch1_LED = 1;
//Put your custom programming here, this will execute when the first button is pressed			
}




if (mode == 2) //Mode 2
{
	printf("Mode 2 %d\r");
	Switch2_LED = 1;
//Put your custom programming here, this will execute when the second button is pressed
}





if (mode == 3) //Mode 3
{
	printf("Mode 3 %d\r");
	Switch3_LED = 1;
//Put your custom programming here, this will execute when the third button is pressed
}

 


//Leave the following code at the very end of the autonomous cycle, so it is sure to execute when and if it is needed.
if (mode == 0) //EMERGENCY STOP
{
	printf("Mode: Disabled %d\r");
	pwm01 = pwm02 = pwm03 = pwm04 = pwm05 = pwm06 = pwm07 = pwm08 = 127;
  	pwm09 = pwm10 = pwm11 = pwm12 = pwm13 = pwm14 = pwm15 = pwm16 = 127;
	relay1_fwd = relay1_rev = relay2_fwd = relay2_rev = 0;
	relay3_fwd = relay3_rev = relay4_fwd = relay4_rev = 0;
	relay5_fwd = relay5_rev = relay6_fwd = relay6_rev = 0;
	relay7_fwd = relay7_rev = relay8_fwd = relay8_rev = 0;	
	//The following code shows all the red lights
	//on the OI to tell the drivers that the autonomous
	//has been disabled
	Pwm1_red = 1;
	Pwm2_red = 1;
	Relay1_red = 1;
	Relay2_red = 1;
	if (irerror == 1) //If the IR has an error, then flash
	{
		printf("IR Sensor Problem, Check connection %d\r");
		errorloop++;
		if (errorloop > 5)
		{
			Pwm1_red = 0;
			Pwm2_red = 0;
			Relay1_red = 0;
			Relay2_red = 0;
		}
		if (errorloop > 9)
		{
			errorloop = 0;
		}
	}

}

I think I took all of our personal, never to be seen code out, and I think I have all the variables declared in the beginning. I give the right for any team to use this, and I give no warranty. If it does not work, you can PM me, and I can try to help. I will not help with any of your personal programming though.

PS: We have tried this on our robot, and it works great! So I encourage any teams that aren't very programming savvy to try to use this to at least do something.

[chattycat14]

hey,
we have easy c, so if anyone could help then it would be appreciated.