Dialog Semiconductor SmartBond DA14585 User manual

User Manual
DA14585 Getting Started
Guide with the IoT Multi
Sensor Development Kit
UM-B-102
The focus of this User Manual is to easily introduce the IoT Multi sensor Kit. This is a reference
design which include IoT Sensors Reference Application. This reference design integrates a number
of sensors and provides to the user a sensor fusion experience using the IoT Sensors Android/iOS
Application.

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DA14585 Getting Started Guide with the IoT Multi
Sensor Development Kit
User Manual
Revision 1.1
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© 2019 Dialog Semiconductor
Contents
Contents............................................................................................................................................... 2
Figures.................................................................................................................................................. 3
Tables ................................................................................................................................................... 3
1Abstract.......................................................................................................................................... 4
2Terms and Definitions................................................................................................................... 4
3Introduction.................................................................................................................................... 5
3.1 How long should it take?....................................................................................................... 5
3.2 Block Diagram....................................................................................................................... 5
3.3 Key Features......................................................................................................................... 6
4Kit Content..................................................................................................................................... 6
5System Requirements................................................................................................................... 7
6Hardware Description ................................................................................................................... 7
6.1 PCB and Board Layout: ........................................................................................................ 7
6.2 Sensors Overview................................................................................................................. 8
6.2.1 Environmental Sensor ........................................................................................... 8
6.2.2 Motion Sensor: Accelerometer/Gyroscope............................................................ 9
6.2.3 Audio Sensor: Microphone .................................................................................... 9
6.2.4 Electronic Compass (Magnetometer).................................................................. 10
6.2.5 Barometric Pressure Sensor ............................................................................... 10
6.2.6 Optical Sensor: Ambient Light and IR Proximity ................................................. 10
6.3 Buttons and LEDs ............................................................................................................... 10
6.4 NOR Flash Memory ............................................................................................................ 11
6.5 Power Supply...................................................................................................................... 11
7Software Downloading and Programming................................................................................ 14
7.1 Drivers and Tools................................................................................................................ 14
7.1.1 SmartSnippets™ Installation ............................................................................... 14
7.1.2 KEIL Installation................................................................................................... 16
7.2 Development Software Source........................................................................................... 16
8Run the pre-loaded Demo........................................................................................................... 18
9Build Your First IoT Application ................................................................................................ 21
9.1.1 How to Start Development................................................................................... 21
9.2 Flash Programming in MSK Applications............................................................................ 22
9.3 Beacon Reference Applications.......................................................................................... 26
9.3.1 Building and Running the Example ..................................................................... 26
10 Appendices.................................................................................................................................. 30
10.1 Appendix A: Memory Map................................................................................................... 30
10.2 Appendix B: Enclosure........................................................................................................ 30
10.3 Appendix C: mkimage script steps...................................................................................... 31
11 Revision History.......................................................................................................................... 33

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Figures
Figure 1: DA14585 IoT Multi Sensor Kit................................................................................................ 4
Figure 2: DA14585 IoT MSK Block Diagram......................................................................................... 5
Figure 3: PCBA of a DA14585 IoT MSK: Top View .............................................................................. 7
Figure 4: PCBA of DA14585 IoT MSK: Bottom View............................................................................ 8
Figure 5: Battery Connection............................................................................................................... 12
Figure 6: Connection between DA14585 IoT MSK and the CIB......................................................... 12
Figure 7: Communication Interface Board Layout............................................................................... 13
Figure 8: SmartSnippets Studio Install Link ........................................................................................ 14
Figure 9: Automatically Install J-Link................................................................................................... 15
Figure 10: Automatically Install J-Link................................................................................................. 15
Figure 11: VCOM on the Debugger..................................................................................................... 16
Figure 12: IoT MSK Software SDK Directory Structure ...................................................................... 17
Figure 13: Quick Start with IoT MSK: Flow Diagram........................................................................... 18
Figure 14: Cloud setting ...................................................................................................................... 19
Figure 15: Applications: Historical Data .............................................................................................. 19
Figure 16: IoT Sensors Reference Application State Machine ........................................................... 20
Figure 17: IoT Sensors Reference Application State Machine ........................................................... 21
Figure 18: mkimage Scripts and Application Location ........................................................................ 23
Figure 19: Available mkimage Scripts................................................................................................. 23
Figure 20: Flash Programming with SmartSnippets Studio ................................................................ 24
Figure 21: SPI Flash Programmer Bootable option ............................................................................ 24
Figure 22: Smart Tag Application........................................................................................................ 25
Figure 23: About Flash Programming Procedure................................................................................ 25
Figure 24: Locating the Beacon .......................................................................................................... 28
Figure 25: Connecting with the DA14585 Eddystone Beacon ............................................................ 29
Figure 26: EDDYSTONE-TLM Data.................................................................................................... 29
Figure 22: Analyzing a Flash Memory Image...................................................................................... 30
Figure 23: DA14585 IoT MSK Enclosure: Bottom/Top View............................................................... 30
Figure 18: Convert .hex to .bin............................................................................................................ 31
Figure 19: Create a Single Image from a Binary................................................................................. 31
Figure 20: Create Another Single Image from a Binary ...................................................................... 32
Figure 21: Create a Multi-Image from the Two Single Images............................................................ 32
Tables
Table 1: DA14585 IoT MSK Top Main Devices..................................................................................... 7
Table 2: DA14585 IoT MSK Bottom Main Devices ............................................................................... 8
Table 3: GPIOs for Buttons and LEDs ................................................................................................ 10
Table 4: GPIOs for the Flash Memory................................................................................................. 11
Table 5: Communication Interface Board (CIB) .................................................................................. 13
Table 6: Beacon Reference Applications ............................................................................................ 26
Table 7: Revision History..................................................................................................................... 33

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1 Abstract
Dialog Semiconductor has created the DA14585 IoT Multi Sensor Development Kit (MSK) to help IoT
device designers and engineers accelerate building their development platforms for designing IoT
applications and solutions. This guide is intended to be an easy introduction to the IoT MSK. No
experience of programming microcontrollers or the cloud is required. It helps with the setup of the
hardware development environment, installing the required software, and downloading and running an
example application on the MSK.
Figure 1: DA14585 IoT Multi Sensor Kit
2 Terms and Definitions
BLE
Bluetooth Low Energy
COM
Communication Port
e-CO2
Equivalent CO2
GATT
Generic Attribute Profile
GPIO
General Purpose Input/Output
HW
Hardware
AQI
Air Quality Indoor
iOS
iPhone OS
IoT
Internet of Things
IR
Infrared
JTAG
Joint Test Action Group (test interface)
LED
Light Emitting Diode
MSK
Multi Sensor Development Kit
OS
Operating System
OTP
One Time Programmable
PC
Personal Computer
PCB
Printed Circuit Board
PDM
Pulse Density Modulation
SDK
Software Development Kit
SOC
System On Chip
SPI
Serial Peripheral Interface
SRAM
Static Random Access Memory
SUOTA
Software Update over the Air
SW
Software
SWD
Serial Wire Debug
UART
Universal Asynchronous Receiver/Transmitter
USB
Universal Serial Bus
VOC
Volatile Oxide Compound

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3 Introduction
The IoT MSK is based on DA14585 (a SmartBond™ Bluetooth Low Energy SoC) and a number of
motion and environmental sensors. The DA14585 SoC is an optimized version of DA14580, offering a
reduced boot time and supporting up to eight connections. It has a fully integrated radio transceiver
and baseband processor for Bluetooth Low Energy. It can be used as a standalone application
processor or as a data pump in hosted systems.
The IoT MSK board embeds a 2-Mbit QSPI Flash memory that can be used to store the downloaded
software images over the SUOTA (Software Update Over The Air) profile and can also serve as storage
for the second bootloader. Programming the IoT MSK is easy. There are two user manuals focusing
on Software and Hardware details respectively.
Users can build a rich cloud application with the data from this IoT MSK in just a few steps. In addition,
the cloud applications provided by Dialog can be used to monitor the data from the IoT MSK sensors
and program IFTTT events.
NOTE
The key aspects of the hardware/software of the IoT MSK are explained in detail in this user manual. A Quick
Start Guide is also available.
3.1 How long should it take?
This tutorial requires 30-40 minutes to complete. For more information the user may consult the
accompanied documentation these are mentioned as for further reading.
3.2 Block Diagram
Figure 2: DA14585 IoT MSK Block Diagram

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3.3 Key Features
•Highly integrated DA14585 Bluetooth®Smart SoC from Dialog Semiconductor
•Standalone module
•Low cost due to printed antenna
•Low cost PCB
•Combined sensors
oAudio
▪Microphone with single-bit PDM output
oGas and Environmental Sensor
▪Temperature
▪Humidity
▪Pressure
▪Air quality (b-VOC and AQI)
oMotion Sensor
▪Combined accelerometer/gyroscope sensor unit
oMagneto Sensor
oOptical Sensor
oAmbient Light Sensor and Infrared proximity
•Access to processor via JTAG and UART from the enclosure
•Programmable RF power up to +9.3 dBm
•Three LED indicators
•General purpose push button
•Expansion slots
•Powered by two low cost AAA alkaline batteries
4 Kit Content
This section describes the required hardware and software to start using the IoT MSK.
The IoT MSK can be ordered via various distributors with Digikey or Mouser.
Inside the IoT MSK package you will find:
•IoT Multi Sensor Kit board
•Programming interface board
•Mini USB cable
•Quick Start Guide

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Download the development SW source. The Dialog IoT Sensors Mobile Application can be
downloaded from App Store or Google Play. The schematics, PCB, Gerber files, Alegro files, and bill
of materials (BOM) are available for download through this link.
5 System Requirements
The IoT MSK is programmed with a preloaded demo. To run it, you need a central device (smartphone
or tablet) with 4.3 (minimum) or 8.0 (minimum) operating systems and BLE technology 4.0 (minimum).
To start developing IoT applications, you need Windows™ Operating System, (ver. 7 or higher) and
KEIL development environment.
6 Hardware Description
This section gives an overview of the design architecture of the IoT MSK. For further reading more
details are provided in UM-B-095.
6.1 PCB and Board Layout:
The top view layout of the IoT MSK is shown in Figure 3. The IoT MSK Enclosure Bottom/Top view is
given in Appendix B: Enclosure.
Figure 3: PCBA of a DA14585 IoT MSK: Top View
Table 1: DA14585 IoT MSK Top Main Devices
Reference
Device Name
Description
1
CSS-I4B20-SMT
Magnetic buzzer transducer from CUI INC.
2
U7: MX25R2035FZUIL0
Serial NOR Flash memory
3
U2: SKY66111-11
Power Amplifier from Skyworks
4
D1: Yellow LED
LED

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5
D2: Red LED
LED
6
D3: Green Led
LED
7
SPK0838HT4H-B
Digital microphone with a single-bit PDM output from
Knowles
8
U22: VCNL4010
Ambient light and IR proximity sensor from Vishay
9
U25: AK09915C
Magnetic sensor from Asahi Kasei
10
U12: BME680
Environmental and Gas Sensor from Bosch
11
J19: 8 Expansion slot
Connection slots to connect additional peripheral and
sensors modules
12
User Push Button
General purpose push button
13
U21: FXL6408UMX
I2C controlled GPO expander from Fairchild
14
J18: 10 Expansion slot
Connection slots to connect additional peripheral and
sensors modules
15
U1: DA14585
Bluetooth Smart SOC
16
U24: ICM42605
Accelerometer/Gyroscope Sensor from TDK Invensense
The bottom view of the PCBA of DA14585 IoT MSK is shown in Figure 4.
Figure 4: PCBA of DA14585 IoT MSK: Bottom View
Table 2: DA14585 IoT MSK Bottom Main Devices
Reference
Device Name
Description
1
Port
Debugging Connector
2
Battery
2x AAA Battery Holder
3
Switch
Power ON/OFF switch
6.2 Sensors Overview
The IoT MSK includes an accelerometer/gyro sensor, digital microphone, Gas (CO2) sensor, and an
infrared proximity combined with an ambient light sensor in a single package. These sensors which
can be accessed from the IoT MSK over the I2C, SPI, and PDM (Audio) interfaces.
6.2.1 Environmental Sensor
The DA14585 IoT MSK employs the BME680 from Bosch Sensortec to detect environmental changes
such as temperature, humidity, atmospheric pressure, and e-CO2. This highly compacted sensor is

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suitable for monitoring indoor air quality and can detect air contamination from paint, furniture, garbage,
and others, using volatile oxide compound (VOC) levels. From the VOC readings, two air quality
parameters can be displayed using smart algorithms: the indoor air quality index (IAQ) and the e-CO2.
This sensor is connected to DA14585 via an I2C interface.
6.2.2 Motion Sensor: Accelerometer/Gyroscope
The DA14585 IoT MSK employs the ICM42605 motion sensor from TDK Invensense that combines
a 3-axis gyroscope and a 3-axis accelerometer with the following features:
•user-programmable interrupts
•wake-on-motion interrupt for low power operation of applications processor
The ICM42605 module is connected to DA14585 via an SPI interface which supports speeds up to 24
MHz.
NOTE
Note: In full operation mode with the accelerometer and gyroscope enabled, the current consumption is
typically 0.72 mA. This drops to 11 μA in sleep mode.
NOTE
Note: For additional flexibility, the DA14585 IoT MSK is equipped with an additional PCB footprint of an
alternative accelerometer/gyroscope sensor: BMI160. The ICM42605 should be unsoldered before using
BMI160.
6.2.3 Audio Sensor: Microphone
The SPK0838HT4H-B from Knowles is a miniature, high-performance, low-power, and top-port silicon
digital microphone with a single-bit PDM output. Due to its high power consumption in sleep mode, it
is supplied via a dedicated GPO from the GPIO expander.
Warning
The microphone is not supported by the software reference applications provided with the DA14585 IoT MSK.

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6.2.4 Electronic Compass (Magnetometer)
The DA14585 IoT MSK employs an electronic compass (magnetometer) sensor from Asahi Kasei, the
AK09915C. It incorporates:
•a magnetic sensor for detecting terrestrial magnetism in the X-axis, Y-axis, and Z-axis
•a sensor driving circuit
•a signal amplifier chain
•an arithmetic circuit for processing signals from each sensor off-loading the main processing unit
•self-test function
The magnetic sensor is connected to the DA14585 via an SPI interface.
6.2.5 Barometric Pressure Sensor
The DA14585 IoT MSK employs a high-accuracy, low-power, and waterproof barometric pressure
sensor from TDK InvenSense, ICP10100, for atmospheric pressure detection. This barometric
pressure sensor is connected to DA14585 via an I2C interface.
Warning
This sensor is not mounted on this reference design and is not supported by the software reference
applications provided with the DA14585 IoT MSK. Users wanting to use this sensor need to do the soldering
themselves.
6.2.6 Optical Sensor: Ambient Light and IR Proximity
The DA14585 IoT MSK has an on-board ambient light and IR proximity sensor from Vishay,
VCNL4010. This sensor is fully integrated as the IR LED emitter is included in the package. It is
connected to DA14585 via the I2C interface.
Potential applications include:
•display contrast/brightness control
•proximity switch for consumer electronics, display, and devices
•dimming control
6.3 Buttons and LEDs
The IoT MSK is equipped with a general purpose user push button and three LED indicators. GPIOS
for Buttons and LEDs shows the GPIO (DA14585 GPIO and the GPIO expander) pin assignment.
Table 3: GPIOs for Buttons and LEDs
GPIO
Function
GPIO Expander GPO 0
Yellow LED
GPIO Expander GPO 2
Red LED
GPIO Expander GPO 4
Green LED
P1_3
Push button

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Note
When the kit is powered, the Yellow LED will blink for 60 seconds. During this time, the device will advertise.
After 60 seconds, the device enters sleep mode and will only start advertising again when movement is
detected
Note
The user push button is active-low and is de-bounced by an RC filter with a time constant of about 2 ms.
6.4 NOR Flash Memory
The DA14585 IoT MSK uses an external Serial NOR Flash memory to mirror its contents to RAM and
execute the content. The Flash memory type is MX25R2035FZUIL0.
•2-Mbit QSPI Flash memory, operated in single I/O mode.
•Operating voltage: 1.65 V to 3.6 V for read, erase, and program operations.
•8USON package.
Table 4: GPIOs for the Flash Memory
GPIO
Function
P0_0 (SPI_CLK)
SPI clock
P0_3 (SPI_CS)
SPI chip select
P0_6 (SPI_MOSI)
SPI_MOSI
P0_5 (SPI_MISO)
SPI_MISO
Note
A pull-up resistor has been added in series with the chip select (CS) pin. This allows the CS pin to follow the
voltage applied to the VCC pin during power-up and power-down which keeps the device not selected.
6.5 Power Supply
By default, IoT MSK is powered by two AAA batteries in the battery holder (BT1) which supply a 3 V
voltage as shown in Figure 5. Another option is to use a JTAG supply. The two-position ON/OFF
switch (SW2) is used to select between these options.

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Figure 5: Battery Connection
If the IoT MSK is powered using JTAG:
1. Plug in the USB cable to the micro-USB header on the communication interface board (CIB). The
other side of the USB cable can be connected to a PC.
2. Set the MSK side switch to OFF to cut off the battery and turn the CIB switch SW2 to ON to
provide power to the MSK.
3. Connect an IDC-10 cable to the 1.27 mm pitch header (10) on the CIB. Connect the other end of
the IDC-10 cable to the debugging port on the bottom of the DA14585 IoT MSK.
The connection between the CIB and DA14585 IoT MSK is shown in Figure 6.
Figure 6: Connection between DA14585 IoT MSK and the CIB
The CIB implements USB-to-JTAG and USB-to-UART functions as shown in Figure 7.

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Figure 7: Communication Interface Board Layout
Table 5: Communication Interface Board (CIB)
Reference
Description
1
Mini USB Connector
2
VDD select, 1.8 V or 3 V
3
VPP enable (6.8 V)
4
VPP LED indicator
5
Target board connection header (2.54 mm pitch)
6
Output signals
7, 8
GND support points
9
Current measurement point
10
Target board connection header (1.27 mm pitch)
11
VDD LED indicator
12
Reset button
13
VDD ON/OFF switch
14
MCU LED indicator
15
MCU with Segger license
Note
For further reading more information about the CIB, refer to Communication Interface Board User Manual,
UM-B-065

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7 Software Downloading and Programming
This section contains reference information about the software required for downloading and
programming.
7.1 Drivers and Tools
7.1.1 SmartSnippets™ Installation
This section describes the installation of SmartSnippets Studio. For further reading the installation
procedure is described in detail in UM-B-057 SmartSnippets Studio User Manual.
A summary of the steps is given here.
1- Download the latest version of SmartSnippets™ Studio from Software and tools, as shown
in Figure 8
Figure 8: SmartSnippets Studio Install Link
Note
•The SmartSnippets™ version should be 2.0.6 and above if you wishes to use Eclipse/GCC.
•Registration is required in order to download the SmartSnippets™.
2- Run the SmartSnippets™ Studio installer (.msi). Several of the required tools are automatically
installed, others need to be manually downloaded and installed.
3- Select to install the latest version of SEGGER J-Link GDB server and click Next.

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Figure 9: Automatically Install J-Link
4- Select the destination folder for the SmartSnippets™ Studio and click Next
Figure 10: Automatically Install J-Link
The SmartSnippets™ Studio is Now installed.

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Note
The communication interface board (CIB) includes an MCU embedded J-Link debugger, see Figure 7. This
ensures the USB to JTAG function by loading the software from Segger to the internal ROM. This debugger
provides also a virtual COM port to the PC/laptop as shown in Figure 11.
Figure 11: VCOM on the Debugger
7.1.2 KEIL Installation
KEIL µVision IDE must be downloaded and installed separately, registration is required.
1. Download and install the Keil tools from https://www.keil.com/demo/eval/arm.htm.
Note
•The Keil development tools can be run as a Free/Lite version without a product license. (File >
License Management). The Free/Lite version offers 32KB code limitation and may be used for
SmartTag and Beacon applications. Because of this limitation the Keil environment can’t be used for
the IoT Sensors application, if the user does not own µVision Keil License he may choose and activate
an evaluation License that offers full functionality for limited time.
•The recommended μVision version is v5.23.0.0.
Note
Note: Need help? Please contact Dialog BLE Software Forum.
7.2 Development Software Source
The directory structure of the IoT MSK Software SDK is shown in Figure 12. The IoT MSK application
software runs on multi-sensor development kit design. The software firmware package contains five
reference applications:
•The IoT sensors application
•The proximity tag application (SmartTag)
•Three beacon applications

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The DA14585 IoT Multi Sensor Development SW Source can be downloaded from the customer
support web page.
Note
For further reading additional information about the software architecture, see Development Kit Developer’s
Guide UM-B-101. This document describes the architecture and implementation details of DA14585 IoT MSK
reference design and the supporting applications.
Figure 12: IoT MSK Software SDK Directory Structure

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8 Run the pre-loaded Demo
This section explains how the user can build, program, Figure 13 shows how to run the pre-loaded
demo. These steps are already described in the Quick Start which is included in IoT MSK box.
Figure 13: Quick Start with IoT MSK: Flow Diagram
As an option, user may enable the cloud functionality Figure 14 (Internet availability is required). The
IoT MSK Cloud feature allows data that are collected by the sensors on the IoT MSK to be uploaded
to the cloud. The data on the cloud can be used in several ways:
•View historical data for a range of time. Example: View temperature logged over the 3 last
days. Refer to Figure 15.
•Set triggers to receive E-mails when sensor data meet a condition. Example: If brightness is
below 15 lumens send me an E-mail
•Control the IoT MSK Led when cloud conditions are met. Example: If temperature in Las Vegas
is less than 20 Celsius turn on the Led.
•Play 3D Game. The user can use the IoT MSK as a joystick and play a 3D Game online.
•Setup IFTTT scenarios what can be triggered by the IOT sensor data or button press.
•Use Amazon Alexa to control the IOT device Led.

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Figure 14: Cloud setting
Figure 15: Applications: Historical Data

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Upon successful connection to the IoT MSK application, you can navigate from the side menu to the
following items:
•Environmental sensors
•IMU sensors
•Sensor Fusion 3D
•Cloud specific settings
•Configuration settings
•Information
•Disclaimer
•Magnetometer status
The IoT MSK advertises for 60 seconds (advertise timeout) before it goes to sleep. During this time
the yellow LED will blink. The IoT MSK advertises for another 60 seconds when it detects movement
and is paired again with the app. Error! Reference source not found. shows the application state
machine.
Figure 16: IoT Sensors Reference Application State Machine
See Also: For Further reading
+ For more details about advanced software features, see Section 5: Development Kit Developer’s Guide
UM-B-101.
+ For more details about the DA14585 advertising concept, see the Advertising Concepts tutorial.