TIDA-00800

Daisy chain temperature sensor reference design for SensorTag

TIDA-00800

Design files

Overview

The TIDA-00800 reference design entails 4 temperature sensors along a daisy chain in a cabling environment.  The sensors connect to the SensorTag development platform via the UART interface where the information can be transmitted wirelessly.  The Bluetooth low energy wireless technology makes testing and demonstration easier due to its integration in most modern equipment.  The form factor and electrical connections are compatible with TI SensorTag 2.0 ecosystem, allowing easy prototyping with other wireless technology (Zigbee, Wifi, sub 1GHz…), while the selected sensor allows industrial grade accuracy and resolution.

Features
  • Daisy-chained temperature sensors (TMP107)
  • Bluetooth Low Energy™ link from SensorTag platform
  • SMAART WIRE™ Interface: Allows up To 32 Daisy-Chained devices using UART interface
  • Temperature range: -55°C to +125°C
  • Accuracy: ±0.4°C from -20°C to +70°C
  • Resolution: 14 bits (0.015625°C)
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUAM8.PDF (693 K)

Reference design overview and verified performance test data

TIDRII5.PDF (235 K)

Detailed schematic diagram for design layout and components

TIDRII6.PDF (107 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDCBB5.ZIP (2113 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Digital temperature sensors

TMP107±0.4°C Temperature Sensor with Daisy-Chain UART, EEPROM, and Alert Function

Data sheet: PDF | HTML
Low-power 2.4-GHz products

CC2650SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless MCU with 128kB Flash

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC1G125Single 1.65-V to 5.5-V buffer with 3-state outputs

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Design guide Daisy-Chained Temperature Sensor for SensorTag Design Guide Sep. 17, 2015

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