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Operational Description 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.
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Operational Description 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. Contents 1 Introduction CC3200 SensorTag Hardware Description RF Function and Frequency Range Operation Description Downloading the SensorTag App Setting Up the SensorTag as an Access Point Connecting the SensorTag to Your Local Wi-Fi Network Switching Between Modes Troubleshooting Replacing the Batteries... 7 Trademarks Texas Instruments, SimpleLink, Internet-on-a chip are trademarks of Texas Instruments. ARM, Cortex are registered trademarks of ARM Limited. Apple is a registered trademark of Apple, 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. All other trademarks are the property of their respective owners. SimpleLink Wi-Fi SensorTag 1 Introduction 1 Introduction 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 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. shows the CC3200 SensorTag. 2 Hardware Description 2.1 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 SimpleLink Wi-Fi SensorTag Operation Description 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 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 First-Time Configuration Only On your mobile phone, go to the Settings menu and connect to the SensorTag-xx access point (see Figure 1). 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 1. 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 2). Follow the steps to upgrade the SensorTag. SimpleLink Wi-Fi SensorTag 3 Operation Description 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. or Depress the two SensorTag hardware buttons simultaneity for a few seconds until the beep sound is activated. Figure 2. Wi-Fi OTA Upgrade From the firmware upgrade screen, go back to the SensorTag device list screen (see Figure 3 and Figure 4). 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 3. Available Device 4 SimpleLink Wi-Fi SensorTag Operation Description Figure 4. 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 5). 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 5. 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. SimpleLink Wi-Fi SensorTag 5 Operation Description To view the SensorTag on another PC or web browser, use the Share button and share by (see Figure 6). Figure 6. Sharing SensorTag View 3.4 Switching Between Modes If you would like to repeat the provisioning method, press and hold the user button for 6 seconds to toggle between station mode (connected to your AP) and AP mode (direct connection to your phone). When in AP mode, the provisioning process can be repeated. 3.5 Troubleshooting If you have problems connecting the SensorTag to your access point, use the advanced setup. Take note of the IP address of the SensorTag (see Figure 7). Figure 7. Example of SensorTag IP Address 6 SimpleLink Wi-Fi SensorTag Operation Description The IP address can be used to configure the Wi-Fi setup for advanced settings through a web browser. Alternatively, the Wi-Fi SensorTag can be accessed by typing sensortag.net in the browser. Advanced Wi-Fi settings can be configured in the profiles tab. (see Figure 8). Figure 8. Sensortag.net Snippet Pressing both buttons simultaneously for 6 seconds resets the SensorTag and deletes all the Wi-Fi settings. The SensorTag can now be configured as a new device. 3.6 Replacing the Batteries To replace the battery, follow these steps: 1. Remove the red rubber casing and plastic casing as shown in Figure Remove and replace batteries. Figure 9. Replacing the Batteries SimpleLink Wi-Fi SensorTag 7 Operation Description WARNING There is a risk of explosion if the batteries are replaced by an incorrect type. To minimize the risk of explosion, ensure the replacement batteries are the correct type. Dispose of used batteries according to the instructions. Waste Electrical and Electronic Equipment (WEEE) This symbol means that according to local laws and regulations your product and/or its battery shall be disposed of separately from household waste. When this product reaches its end of life, take it to a collection point designated by local authorities. Proper recycling of your product will protect human health and the environment. 8 SimpleLink Wi-Fi SensorTag Revision History Revision History Changes from February 28, 2017 to February 28, Page Changed abstract... 1 Revision History 9 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated ( TI ) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, TI Resources ) are intended to assist designers who are developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you (individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of this Notice. TI s provision of TI Resources does not expand or otherwise alter TI s applicable published warranties or warranty disclaimers for TI products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections, enhancements, improvements and other changes to its TI Resources. You understand and agree that you remain responsible for using your independent analysis, evaluation and judgment in designing your applications and that you have full and exclusive responsibility to assure the safety of your applications and compliance of your applications (and of all TI products used in or for your applications) with all applicable regulations, laws and other applicable requirements. You represent that, with respect to your applications, you have all the necessary expertise to create and implement safeguards that (1) anticipate dangerous consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that might cause harm and take appropriate actions. You agree that prior to using or distributing any applications that include TI products, you will thoroughly test such applications and the functionality of such TI products as used in such applications. TI has not conducted any testing other than that specifically described in the published documentation for a particular TI Resource. You are authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include the TI product(s) identified in such TI Resource. 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