NXP Semiconductors JN516x-EK001, Руководство пользователя, Страница: 22 / 86

Chapter 1
Introduction to the Evaluation Kit
22 © NXP Laboratories UK 2015 JN-UG-3093 v1.5
1.3.3 Lighting/Sensor Expansion Boards (DR1175)
The three Lighting/Sensor Expansion Boards (part number: DR1175) are physically
identical. They are Arduino-compatible shields that are supplied pre-fitted to the
Arduino-compatible headers of three of the Carrier Boards (see
Section 1.3.2 ).
Each expansion board has the following features (also refer to Figure 13 ):

Arduino-compatible expansion header (in four parts, CN1-CN4)

3 white dimmable LEDs:

Controlled in unison by Pulse Width Modulation (PWM)

Driven by the PWM output of JN516x Timer 1 on the module on the Carrier
Board, via DIO3 on the module (for details of the JN516x timers and DIOs,
refer to the datasheet for the appropriate chip).

Colour LED module containing 3 miniature LEDs:

LEDs are independently controlled by PWM from an on-chip multi-channel
PMW controller, connected via the 2-wire Serial Interface (see below)

Connected to the 2-wire Serial Interface (I
2
C) of the module on the Carrier
Board, via DIO14 (clock) and DIO15 (data) on the module

Humidity/temperature sensor (of the type SHT1x) connected to the module on
the Carrier Board, via DIO12 (data) and DIO17 (clock) on the module

Light sensor (of the type TSL2550), connected to the 2-wire Serial Interface
(I
2
C) of the module on the Carrier Board, via DIO14 (clock) and DIO15 (data)
on the module

Reset button (to reset the Carrier Board)
Note: For full details of the board, refer to the Carrier
and Expansion Boards Reference Manual (JN-RM-
2063)
, available from the NXP Wireless Connectivity
TechZone (see “Support Resources” on page 8 ).
Figure 13: DR1175 Lighting/Sensor Expansion Board Layout
DR1175
LED Lighting
Sensors
RESET
CN4 CN3
CN2
CN1
CN6
D7
U4
U5
SW1
White LED’s
Multi-Colour
LED Module
D1, D2, D3
Light
Sensor
Temp/
Humidity
Sensor
Prototype
Area