Texas Instruments SimpleLink CC3200 Wi-Fi Manuel utilisateur

SWRU509–February 2017

SimpleLink™ Wi-Fi®SensorTag

User's Guide

SWRU509–February 2017

SimpleLink™ Wi-Fi®SensorTag

The SimpleLink™ Wi-Fi®SensorTag from Texas Instruments™ (model CC3200SensorTag) provides a

demo platform for showcasing the capabilities of the CC3200 device. With this easy-to-use platform,

environmental sensing and other Internet of Things (IoT) applications can be done with ease.

The CC3200 device is part of the SimpleLink microcontroller (MCU) platform which consists of Wi-Fi®,

Bluetooth®low energy, Sub-1 GHz and host MCUs. All share a common, easy-to-use development

environment with a single core software development kit (SDK) and rich tool set. A one-time integration of

the SimpleLink platform lets you add any combination of devices from the portfolio into your design. The

ultimate goal of the SimpleLink platform is to achieve 100 percent code reuse when your design

requirements change. For more information, visit www.ti.com/simplelink.

Contents

1 Introduction ................................................................................................................... 2

1.1 CC3200 SensorTag ................................................................................................ 2

1.2 Key Features ........................................................................................................ 3

1.3 What is Included .................................................................................................... 3

1.4 FCC/IC Regulatory Compliance .................................................................................. 3

2 Hardware Description ....................................................................................................... 5

2.1 Block Diagram....................................................................................................... 5

2.2 Hardware Features ................................................................................................ 6

2.3 RF Function and Frequency Range.............................................................................. 6

2.4 Sensors and Peripherals........................................................................................... 6

3 Operation Description ....................................................................................................... 8

3.1 Downloading the SensorTag App................................................................................. 8

3.2 Setting Up the SensorTag as an Access Point ................................................................. 8

3.3 Connecting the SensorTag to Your Local Wi-Fi Network.................................................... 10

3.4 Switching Between Modes....................................................................................... 11

3.5 Troubleshooting ................................................................................................... 11

3.6 Replacing the Batteries........................................................................................... 12

4 Design Files ................................................................................................................ 13

4.1 Hardware........................................................................................................... 13

5 PCB Revision............................................................................................................... 13

6 References.................................................................................................................. 14

Trademarks

Texas Instruments, SimpleLink, Internet-on-a chip, LaunchPad are trademarks of Texas Instruments.

ARM, Cortex are registered trademarks of ARM Limited.

Apple is a registered trademark of Apple, Inc.

Bluetooth is a registered trademark of Bluetooth SIG, Inc.

IOS is a registered trademark of Cisco Systems, Inc.

Google Play is a trademark of Google.

IBM is a registered trademark of IBM Corporation.

Wi-Fi is a registered trademark of Wi-Fi Alliance.

All other trademarks are the property of their respective owners.

Introduction

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1 Introduction

1.1 CC3200 SensorTag

The high-performance CC3200 device is the industry's first single-chip microcontroller (MCU) with built-in

Wi-Fi connectivity for easy system application. Created for the Internet of Things (IoT), the SimpleLink™

Wi-Fi CC3200 device is a wireless MCU that integrates a high-performance ARM®Cortex®-M4 MCU that

allows customers to develop an entire application with a single device. With on-chip Wi-Fi, internet, and

robust security protocols, no prior Wi-Fi experience is needed for fast development.

The CC3200 SensorTag is a low-cost IoT demo platform for ARM®Cortex®-M4F-based microcontrollers.

The SensorTag design highlights the CC3200 Internet-on-a chip™ solution and Wi-Fi capabilities. The

CC3200 SensorTag features programmable user buttons, LEDs, reed relay, digital microphone, and a

buzzer for user interaction. Onboard sensors, gyroscope, accelerometer, and compass allow for easy

environmental sensing and IoT applications. Figure 1 shows the CC3200 SensorTag.

NOTE: All figures and references in this document apply to the Rev1.2. Most of the text in this

document also applies to the Rev1.2, unless otherwise stated.

CAUTION

The kit contains electrostatic discharge (ESD) sensitive components.

Handle with care to prevent permanent damage.

Figure 1. CC3200 SensorTag

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Introduction

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SimpleLink™ Wi-Fi®SensorTag

1.2 Key Features

The key features of the CC3200 SimpleLink Wi-Fi and IoT SensorTag are as follows:

• CC3200, SimpleLink Wi-Fi, Internet-on-a chip solution with integrated MCU

• Onboard inverted-F antenna with RF connector for conducted testing

• Two buttons, two LEDs, reed relay, digital microphone, and a buzzer for user interaction

• Sensors, gyroscope, accelerometer, and compass for easy integration in IoT application

• Debug and JTAG interface for flash programing

1.3 What is Included

The kit contents are as follows:

• One CC3200 Wi-Fi SensorTag

• One getting started guide

• Two AAA batteries

1.4 FCC/IC Regulatory Compliance

1.4.1 FCC

The CC3200 SimpleLink Wi-Fi and IoT solution with MCU LaunchPad™ hardware is FCC Part 15

compliant. Operation is subject to the following two conditions:

• This device may not cause harmful interference, and

• This device must accept any interference received, including interference that may cause undesired

operation.

Changes or modifications not expressly approved by the party responsible for compliance could voice the

authority of the user to operate the equipment.

1.4.1.1 Class B Operation

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant

to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses and can radiate radio frequency

energy and, if not installed and used in accordance with the instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or television reception, which can

be determined by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from the one the receiver is connected to.

• Consult the dealer or an experienced radio or TV technician for help.

1.4.1.2 RF Exposure Information (SAR)

This device complies with radio frequency (RF) exposure limits adopted by the FCC for an uncontrolled

environment.

Introduction

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1.4.2 IC

This device complies with Industry Canada's license-exempt RSSs. Operation is subject to the following

two conditions:

• This device may not cause interference, and

• This device must accept any interference, including interference that may cause undesired operation of

the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de

licence. L'exploitation est autorisée aux deux conditions suivantes:

• l'appareil ne doit pas produire de brouillage, et

• l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est

susceptible d'en compromettre le fonctionnement.

1.4.2.1 RF Exposure Information (SAR)

This equipment complies with Innovation, Science and Economic Development Canada RF exposure

limits set forth for an uncontrolled environment.

Déclaration d'exposition aux radiations:

Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un

environnement non contrôlé.

1.4.3 EU

Texas Instruments Inc. declares that the radio equipment type CC3200SensorTag is in compliance with

Directive 2014/53/EU.

The full text of the EU declaration of conformity is available at www.ti.com/lit/pdf/sszq037.

1.4.3.1 RF Exposure Information (SAR)

This device meets the EU requirements and the International Commission on Non-Ionizing Radiation

Protection (ICNIRP) on the limitation of exposure of the general public to electromagnetic fields by way of

health protection.

CC3200

LEDs

Buzzer

Push Buttons

Antenna

Murata

Connector

JTAG

Interface

AAA

Batteries

Reed Relay

MK24 Light Sensor

OPT3001

Humidity

Sensor

HDC1000

IR Temp

Sensor

TMP007

Microphone

SPK0833

Filter

Gyroscope, Accelerometer, and

Compass

MPU-9250

Pressure

Sensor

BMP280

S-Flash

W25X80

Crystals

40 Mhz

32.768 Khz

DevPack

Interface

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Hardware Description

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SimpleLink™ Wi-Fi®SensorTag

2 Hardware Description

2.1 Block Diagram

Figure 2 shows a block diagram of the CC3200 SensorTag.

Figure 2. CC3200 SensorTag Block Diagram

Hardware Description

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2.2 Hardware Features

The hardware features of the CC3200 SensorTag are as follows:

• CC3200, SimpleLink Wi-Fi, internet-on-a chip solution with integrated MCU

• 20-pin DevPack SKIN connector and 10-pin JTAG connector

• Onboard inverted-F antenna with RF connector for conducted testing

• Two buttons, two LEDs, a reed relay, a digital microphone, and a buzzer for user interaction

• Gyroscope, accelerometer, and compass for easy integration in IoT application

• Debug and JTAG interface for flash programing

• AAA battery connector interface

• Infrared Thermopile Sensor, Pressure Sensor, Humidity Sensor, and Light Sensor

• Onboard 1-MB serial flash memory

2.3 RF Function and Frequency Range

The CC3200 SensorTag device is designed to operate in the WLAN 2.4-GHz band. The CC3200

SensorTag device also supports Channels 1 through 11 (2142 MHz to 2462 MHz). The SensorTag design

uses the SimpleLink Wi-Fi CC3200 Internet-on-a chip device (see CC3200 SimpleLink™ Wi-Fi® and IoT

SensorTag Design Files).

NOTE: The maximum RF power transmitted in each WLAN 2.4-GHz band is 16.5 dBm (EIRP

power).

2.4 Sensors and Peripherals

2.4.1 Reed Relay

The MK24-A reed relay is good for low-power operations (see [1]). The reed relay is suitable for IoT

applications with a contact resistance of 350 MΩ, a maximum operating time of 0.25 ms, and a release

time of 0.15 ms.

2.4.2 Digital Microphone

The SPH0641LU4H device is suitable for a varying range of applications; it provides a means for sensing

sounds (see [2]). The SPH0641LU4H is a low-power microphone with high performance and good RF

immunity. The microphone can be operated in the five modes that follow:

• Powered down mode, VDO = 0 V

• Sleep mode, VDO ranges from 3.6 V to 1.62 V

fCLOCK ≤250 kHz

• Low-power mode, VDO ranges from 3.6 V to 1.62 V

351 kHz ≤fCLOCK ≤815 kHz

• Ultrasonic mode, VDO ranges from 3.6 V to 1.62 V

3.072 MHz ≤fCLOCK ≤4.8 MHz

• Standard performance mode, VDO ranges from 3.6 V to 1.62 V

1.024 MHz ≤fCLOCK ≤2.475 MHz

2.4.3 Buzzer

The HCS0503B device can be used as an alarm (see [3]). Some of the specifications follow:

• Rated voltage of 3 V

• Output S.P.L ≥80 dB

• Coil resistance of 12 Ω±3

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Hardware Description

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SimpleLink™ Wi-Fi®SensorTag

• Rated frequency of 4000 Hz

2.4.4 Gyroscope, Accelerometer, and Compass

The MPU-9250 device is a multichip module consisting of a 3-axis gyroscope, a 3-axis accelerometer, and

a 3-axis magnetometer for position tracking (see [4]). The MPU-9250 features three 16-bit ADCs each for

the gyroscope, accelerometer, and magnetometer. Some other features of the MPU-9250 are as follows:

• High-precision clock

• Precision tracking of fast and slow motions

• VDD operating range of 2.4 V to 3.6 V

• I2C and SPI serial communication interface

2.4.5 Infrared Thermopile Sensor

The TMP007 device is a fully-integrated microelectromechanical system (MEMS) thermopile sensor that

measures the temperature of an object without direct contact (see [5]). The thermopile absorbs passive

infrared energy from an object at wavelengths of 4 µm to 16 µm within the end-user defined field of view.

Some other features are as follows:

• 14-bit local temperature sensor for cold junction reference

• Two-wire serial interface options

• Low power

2.4.6 Pressure Sensor

The BMP280 device is a digital pressure sensor for measuring barometric pressure conditions (see [6]).

The BMP280 can also be used to determine altitude. Some other features of the sensor include the

following:

• Wide pressure range of 300 hPa to 1100 hPa

• High accuracy

• Low current consumption of 2.7 µA @ 1 Hz sampling rate

• I2C and SPI serial communication interface

2.4.7 Humidity Sensor

The HDC1000 device is a digital humidity sensor with a relative humidity (RH) operating range of 0% to

100% that provides excellent measurement accuracy at very low power (see [7]). Some other features

are:

• Relative humidity accuracy ±3%

• 14-bit measurement resolution

• Supply voltage range of 3 V to 5 V

2.4.8 Light Sensor

The OPT3001 device is a sensor that measures the intensity of visible light (see [8]). The device can

sense a light spectrum similar to that of the human eye. Some other features follow:

• Measurements: 0.01 lux to 83k lux

• Wide power-supply range: 1.6 V to 3.6 V

• Low operating current: 1.8 µA

• Flexible interrupt system

Operation Description

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3 Operation Description

At start-up, the SensorTag enters access point mode for 2 minutes. When the SensorTag enters access

point mode, the red LED blinks three times.

NOTE: After 5 minutes, the SensorTag emits a short beep and enters hibernate mode. To wake the

SensorTag from hibernate mode into access point mode, press the power button.

TI recommends using the Watch DevPack (see [9]) with the Wi-Fi SensorTag. The display shows

important status information and technical data that is useful for debugging network settings.

3.1 Downloading the SensorTag App

The SensorTag is available from the Apple®store and the Google Play™ store.

•SimpleLink SensorTag, Google Play store

•TI SensorTag, Apple Store

3.2 Setting Up the SensorTag as an Access Point

Pull the plastic tab on the batteries to power the SensorTag.

NOTE: If the SensorTag has been connected to an access point before, you can reset the Wi-Fi

settings by pressing both buttons on the side simultaneously for 6 seconds.

3.2.1 First-Time Configuration Only

On your mobile phone, go to the Settings menu and connect to the SensorTag-xx access point (see

Figure 3). The -xx value is the two last digits of the SensorTag MAC address; this value is used to

uniquely identify your SensorTag.

Connecting the phone to the access point may take up to 30 seconds the first time it connects.

NOTE: Only one device can be connected to the Wi-Fi SensorTag when it is configured as an

access point. On some phone models, the 4G connection and 5-GHz Wi-Fi must be disabled

to detect the SensorTag as access point.

Figure 3. Example of SensorTag Access Point

To launch the SensorTag app, you may have to pull down the menu in the SensorTag device list to

refresh the device list. The app detects the new Wi-Fi SensorTag. If the SensorTag is programmed with

firmware version 0.98, the app will prompt you to upgrade the SensorTag to the latest version (see

Figure 4). Follow the steps to upgrade the SensorTag.

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Operation Description

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SimpleLink™ Wi-Fi®SensorTag

If an upgrade has already taken place and a newer firmware version becomes available, users must first

revert back to the factory default (firmware version 0.98). This can be done in one of 2 ways:

• In the mobile application, select Firmware Upgrade →Factory Default.

• Depress the two SensorTag hardware buttons simultaneity for a few seconds until the beep sound is

activated.

Figure 4. Wi-Fi®OTA Upgrade

From the firmware upgrade screen, go back to the SensorTag device list screen (see Figure 5 and

Figure 6).

• For IOS®devices, go into Settings and manually reconnect to the SensorTag-xx access point.

• For Android devices, the phone will keep the connection to the SensorTag access point. On the

Android device, select Configure new Wi-Fi SensorTag, and follow the on-screen instructions to

configure the Wi-Fi settings.

Figure 5. Available Device

Operation Description

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Figure 6. New Device Found

3.3 Connecting the SensorTag to Your Local Wi-Fi Network

On the Sensor View screen, the SensorTag data is displayed (see Figure 7). The default update interval

for the sensor view is 1 second. After 90 seconds of inactivity, the SensorTag emits a short beep and

enters hibernate mode to save power. Press any button to wake up the SensorTag.

Figure 7. SensorTag Sensor Data

To view the sensor data directly in the Cloud, follow the Cloud URL. The SensorTag will now send data

directly to the IBM®quickstart cloud using MQTT.

NOTE: These data are sent directly without any security or encryption enabled.

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