Chronos Personal Area Network and Sensor Node Development System Reference Design
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This reference design features a highly integrated, wearable wireless development system provided in a sports watch form-factor. It may be used as a reference platform for watch systems, a personal display for personal area networks, or as a wireless sensor node for remote data collection. Based on the CC430F6137 <1 GHz RF SoC, the eZ430-Chronos is a complete CC430-based development system contained in a watch and features a 96 segment LCD display, an integrated pressure sensor and 3-axis accelerometer for motion sensitive control.

  • Complete sports watch based on the CC430F6137, an MSP430™ microcontroller with integrated sub-1-GHz wireless transceiver
  • Watch can be reprogrammed for custom wireless applications
  • Highly integrated watch includes on-board three-axis accelerometer, pressure sensor, temperature sensor, and battery voltage sensor
  • 96-segment LCD display driven directly by the CC430 microcontroller
  • Can be paired wirelessly with heart-rate monitors, pedometers, or other devices based on RF transceivers such as the CC430 or CC11xx devices
  • Includes an eZ430-RF USB emulator that connects the eZ430-Chronos to a PC for real-time in-system programming and debugging.
  • This reference design is tested and includes firmware, hardware design files & documentation.
  • Hardware based on this design is also orderable from the TI eStore (eZ430-CHRONOS)

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Schematic/Block Diagram

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Design Guide

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC430F6137  20 MHz MCU with 32KB Flash, 4KB SRAM, Sub-1 GHz radio, AES-128, 12-bit ADC, I2C/SPI/UART, 96 seg LCD  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules
TPS769  100-mA, 10-V, low-IQ, low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC430F6137 Download Download
TPS769 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 9236 29 Jul 2015
Design files (2)
Title Type Size (KB) Date
PDF 74 27 Jun 2013
PDF 767 27 Jun 2013

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