![]() ![]() That is where the switch statement makes the code clearer because it is obvious that every case is comparing to the same variable. In loop() we continously check to see if a command has been ServoRight.attach(12) // Attach right signal to pin 12 ServoLeft.attach(13) // Attach left signal to pin 13 I am trying to write a menu system to integrate with my home automation system but I have run across a problem with nested switch.case switches used to perform the menu routines. Tone(4, 3000, 1000) // Attach to Pin4, Play tone for 1 second Initialize Servos and attach to XBee CMDs If the value stored in the variable matches the case number, the code inside the body of the case statement will be executed. rate matches your XBee setting (9600 is default). The switch statement looks at the variable inside the parentheses ( temp) and compares it to each one of the case statements. Void setup() // Built-in initialization block In particular, a switch statement compares the value of a variable to the values specified in case statements. Servo servoLeft // Declare left and right servos Description Like if statements, switch case controls the flow of programs by allowing programmers to specify different code that should be executed in various conditions. XBee's DIN (RX) is connected to pin 3 (Arduino's Software TX) XBee's DOUT (TX) is connected to pin 2 (Arduino's Software RX) We'll use SoftwareSerial to communicate with the XBee: The XBee's DOUT and DIN pins to Arduino pins 2 and 3. Sure the SWITCH IS IN THE "DLINE" POSITION. The XBee Shield makes all of the connections you'll needīetween Arduino and XBee. So I could have cases 4 and 5 grouped together as well as 8 and 10 grouped together or 9 and 11 grouped together. Set up a software serial port to pass data between an XBee Shield There are several cases where I want to have some common code executed so I was thinking I could group those cases together and only have the code with the break at the end of it in the last case statement. a way to define my expected character in HEX, for example in XBee.read() 'w' would come through the serial as 77.
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