User's Manual

Hardware Description www.ti.com
6
SWRU509–February 2017
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Copyright © 2017, Texas Instruments Incorporated
SimpleLink™ Wi-Fi
®
SensorTag
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
f
CLOCK
≤ 250 kHz
• Low-power mode, VDO ranges from 3.6 V to 1.62 V
351 kHz ≤ f
CLOCK
≤ 815 kHz
• Ultrasonic mode, VDO ranges from 3.6 V to 1.62 V
3.072 MHz ≤ f
CLOCK
≤ 4.8 MHz
• Standard performance mode, VDO ranges from 3.6 V to 1.62 V
1.024 MHz ≤ f
CLOCK
≤ 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