Nordic 3 - default chapter; Table of Contents

Contents
Doc. ID 4374_139 v1.1
Page 2
Contents
Revision history.................................................................................................................... 4
Chapter1:Introduction...................................................................................5
1.1 Smart Remote 3 DK add-on..................................................................................................................................5
1.2 Smart Remote 3 nRF52 product example....................................................................................................... 5
Chapter2:Kit content..................................................................................... 7
2.1 Hardware content.....................................................................................................................................................7
2.2 Downloadable content........................................................................................................................................... 8
Chapter3:Quick start..................................................................................... 9
3.1 Assemble Smart Remote 3 hardware................................................................................................................9
3.2 Power up....................................................................................................................................................................10
3.3 Program DK with Smart Remote 3 for nRF52 firmware........................................................................... 11
3.4 Turn on and pair with Windows.......................................................................................................................11
3.5 Ubuntu setup........................................................................................................................................................... 13
3.6 Turn on and pair with Ubuntu.......................................................................................................................... 13
3.7 Configure audio input.......................................................................................................................................... 16
3.7.1 Test voice recognition......................................................................................................................... 17
3.7.2 Listening to audio quality.................................................................................................................. 18
Chapter4:System overview......................................................................... 19
4.1 Remote control........................................................................................................................................................19
4.1.1 Pairing........................................................................................................................................................ 19
4.1.2 Trackpad....................................................................................................................................................20
4.1.3 Accelerometer.........................................................................................................................................21
4.1.4 Free-space navigation..........................................................................................................................22
4.1.5 Intelligent power saving.....................................................................................................................24
4.1.6 Keypad....................................................................................................................................................... 24
4.1.7 Infrared LED and infrared learning feature..................................................................................25
4.1.8 NFC..............................................................................................................................................................26
Chapter5:Hardware description: Smart Remote 3 DK add-on.................27
5.1 Hardware figures: Smart Remote 3 DK add-on........................................................................................... 28
5.2 Block diagram.......................................................................................................................................................... 29
5.3 Design description................................................................................................................................................. 30
5.3.1 Trackpad....................................................................................................................................................30
5.3.2 Keypad matrix.........................................................................................................................................31
5.3.3 Low-power accelerometer circuit................................................................................................... 33
5.3.4 Motion tracking device....................................................................................................................... 34
5.3.5 Power supply...........................................................................................................................................35
5.3.6 Infrared LED and driver.......................................................................................................................36
5.3.7 Codec......................................................................................................................................................... 36
5.3.8 Digital microphones (only for use with nRF52 DK)...................................................................37
5.3.9 nRF51 DK interface............................................................................................................................... 37