Essentials

Setup prerequisites

This is a RP2040-type board, and you'll essentially treat it as a Raspberry Pi Pico board. Follow these instructions to get ready to code.

Board setup

The only thing you need to set up is in 2_Board.ino. Have a look at the very top:

/*
 * Chose your board. Default is to 32U4-based boards. 
 */

//------------------------------
//-----------BOARD MCU----------
//------------------------------

#define BOARDTYPE 0

// 0 -> Atmel 32U4 based boards. (Leonardo, Pro Micro, Feather, Teensy 2.0, etc) SAM3X based boards. (Due)

// 1 -> SAMD21 or SAMD51 based boards. (Arduino Zero and many more)

// 2 -> RP2040 based boards. (Raspberry Pi Pico, Pico W, Pro Micro RP2040, and many more)


//------------------------------
//-------DAHL DESIGN CB1--------
//------------------------------

#define USING_CB1 0

To activate the pre-programmed features for you CB1, set the following:

BOARDTYPE to 2

USING_CB1 to 1

That is all. Now, if you have removed components from the board or in general have some advanced setup for switches, have a look at advanced settings.

Analog switches

If you're using analog switches that will produce button numbers (typically rotary switches), you'll have to assign some button numbers to it. More on this in the complete project example.

Switch functions

We can move directly to start using switch functions now. This is all done in 30_Switches.ino. The various functions used to add firmware code for our switches are found in the library.

Lets say we have 4 pushbuttons wired to row 1, column pins 1-4. Open 30_Switches tab and you'll find the area between "Switches start here" and "Switches end here" to be empty. The following is all you need:

  //--------------------------------------
  //---------SWITCHES START HERE----------
  //--------------------------------------

  pushButton(1,1);
  pushButton(1,2);
  pushButton(1,3);
  pushButton(1,4);

  //--------------------------------------
  //---------SWITCHES END HERE------------
  //--------------------------------------

	Joystick.setZAxis(rotaryField - 32767);
	Joystick.setYAxis(buttonField - 32767);

	Joystick.sendState();

} //LOOP ENDS HERE

#if (BOARDTYPE == 2)
  void loop()
  {
	#if (LED1COUNT + LED2COUNT + LED3COUNT + LED4COUNT > 0)
		processCommands();
	#endif
  #if(USING_CB1 == 1)
  CB1Oversampling();
  #endif
  }
#endif

You've now edited two numbers and written 4 lines of code, your firmware is ready to upload.

Next, look at the complete project guide for a more comprehensive firmware setup.