Joystick input

To operate the AVR Butterfly a joystick is used as user input. It operates in five directions, including center-push, see Figure 1.

Figure 1. Joystick input

Using the joystick one can move around in the menu shown in figure Figure 1, and edit values, entering name, etc. Here are examples on how to enter your name.

Entering your name using the joystick:

  1. 1.

    Press the joystick up (SCROLL UP) to wake the AVR Butterfly. If AVR BUTTERFLY is not scrolling over the display, press the joystick to the left (EXIT SUB-MENU) until it does.

  2. 2.

    Press the joystick down (SCROLL DOWN) three times, so the string NAME is displayed.

  3. 3.

    Press the joystick to the right (ENTER SUB-MENU). If this is the first time a name is entered, the string ENTER NAME will be displayed, otherwise the name already entered will be displayed and you have to press the joystick to the right (ENTER SUB-MENU) once more.

  4. 4.

    When ENTER NAME is displayed press center push (ENTER). If this is the first time you enter a name, the character A should be blinking in the right side in the display, otherwise the last character of the already entered name will blink.

  5. 5.

    Press the joystick up (SCROLL UP) or down (SCROLL DOWN) to get to the wanted character. Press the joystick to the right (ENTER SUB-MENU) to add a new character or press the joystick to the left (EXIT SUB-MENU) to remove a character.

  6. 6.

    When you have got all the characters, up to maximum 25, press center push (ENTER) to save this name. The name will now be displayed in the display. If the name is more than 6 characters long it will scroll over the display, otherwise it will be displayed static.

Entering your name using a terminal:

  1. 1.

    Connect a serial cable from the PC to the AVR Butterfly as described in connect to PC. Open a terminal on your PC (e.g. HyperTerminal) and configure the terminal to 19200 Baudrate, 8 Databits, none Parity and one stop bit. Set Flow control to None.

  2. 2.

    Go through point 1, 2 and 3 above.

  3. 3.

    When the ENTER NAME is displayed press the joystick down (SCROLL DOWN), and DOWNLOAD NAME will be displayed

  4. 4.

    Press center push (ENTER) to activate the UART, and the text WAITING FOR INPUT ON RS232 will be displayed.

  5. 5.

    Type your name in the terminal window on the PC (up to 25 characters) and save the name by pressing enter on your PC-keyboard. The name you typed should now be displayed in the AVR Butterfly display.

Note:

The Auto Power Off feature is default enabled. It will turn off the LCD after default 30 minutes. This timeout can be changed or turned off. To wake the AVR Butterfly from SLEEP, press the joystick in the UP-position.

Parent topic: How to operate the preprogrammed Application