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Atmel AVR1923

8394B-AVR-02/12

8 Table of contents

Features............................................................................................... 1

1 Introduction ...................................................................................... 1

2 Related items.................................................................................... 2

3 General information......................................................................... 4

3.1 Preprogrammed firmware.................................................................................... 4

3.2 Power supply....................................................................................................... 4

3.3 Measuring the Atmel AVR XMEGA power consumption..................................... 4

3.4 Programming the kit ............................................................................................ 5

4 Connectors ....................................................................................... 6

4.1 Programming headers......................................................................................... 6

4.2 I/O expansion headers ........................................................................................ 7

5 Peripherals ....................................................................................... 9

5.1 Serial flash........................................................................................................... 9

5.2 Atmel AVR QTouch button .................................................................................. 9

5.3 Battery backup system ........................................................................................ 9

5.4 Mechanical buttons ........................................................................................... 10

5.5 LEDs.................................................................................................................. 10

5.6 FSTN LCD display............................................................................................. 10

5.7 Analog I/O.......................................................................................................... 12

5.7.1 Temperature sensor ................................................................................................ 12

5.7.2 Ambient light sensor ................................................................................................ 14

6 Code examples............................................................................... 16

7 Revision history ............................................................................. 17

7.1 Revision 2.......................................................................................................... 17

8 Table of contents ........................................................................... 18