u-blox EVK-NINA-B50, User Manual

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EVK-NINA-B50 - User guide
UBX-23007761 - R02 Contents Page 3 of 37
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Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Product description .............................................................................................................................. 5
1.1 Overview ........................................................................................................................................................ 5
1.2 Kit includes ................................................................................................................................................... 6
1.3 Key features ................................................................................................................................................. 6
1.4 EVK-NINA-B50 block diagram .................................................................................................................. 7
1.5 Connectors ................................................................................................................................................... 8
2 Setting up the evaluation board ....................................................................................................... 9
2.1 Evaluation board setup .............................................................................................................................. 9
2.2 Software Development .............................................................................................................................. 9
NXP SDK ............................................................................................................................................... 9
Software debug options .................................................................................................................... 9
2.3 Measuring current consumption ...........................................................................................................10
Using an ammeter ............................................................................................................................10
Using a voltmeter..............................................................................................................................10
Using an external power supply or power analyzer ....................................................................10
3 Board configuration ........................................................................................................................... 12
3.1 Powering options .......................................................................................................................................12
Selecting the power configuration jumpers ................................................................................12
Default power configuration, 3.3 V ...............................................................................................15
Battery powered, 3 – 1.71 V .............................................................................................................16
Battery powered with protection diode, 2.7 – 1.71 V ..................................................................17
External supply, 1.71- 3.60 V .........................................................................................................18
Raspberry Pi HAT ..............................................................................................................................19
3.2 Disconnecting NINA signals from board peripherals ........................................................................19
4 Interfaces and peripherals ............................................................................................................... 21
4.1 Buttons and LEDs .....................................................................................................................................21
4.2 Arduino interface ......................................................................................................................................22
Arduino shield compatibility ...........................................................................................................24
4.3 Raspberry Pi interface ..............................................................................................................................24
Powering considerations .................................................................................................................27
UART ...................................................................................................................................................27
4.4 Additional Interfaces ................................................................................................................................27
Extra memory – external Flash ......................................................................................................29
Extra USB to UART interface .........................................................................................................29
CPU trace interface ..........................................................................................................................29
Appendix ....................................................................................................................................................... 30
A Schematics ........................................................................................................................................... 30
A.1 NINA-B4 to NINA-B50 pin correlation ...................................................................................................34