Body Weight Scale Reference Design with Body Composition capability and BLE Connectivity
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This reference design is for a complete body weight scale end equipment with body composition capability featuring TI signal chain, power, and connectivity components. With TI's AFE4300 weigh scale/body composition AFE, you can accelerate your body weight scale design or quickly add body composition measurement features to your existing platform. This reference design also includes the full BLE connectivity design for easy interface to BLE enabled smartphones, tablets, etc.

  • Features AFE4300 for both bio-impedance body composition measurement as well as weight measurement
  • MSP430F5528 microcontroller for holding calibration data and computing weight, TBW, ECW, and body composition analysis
  • BLE module connection featuring TI's CC2541
  • This design is tested and provides everything you need to complete your design including Schematics, Layout and Gerber files, and BOM.

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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AFE4300  Weight-scale and body-composition measurement analog front end (AFE)  Medical AFEs  Sample & Buy View Design Kits & Evaluation Modules
CC2541  Bluetooth® Low Energy and proprietary wireless MCU  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules
TPS735  500-mA, 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)
AFE4300 Download Download
CC2541 Download Download
MSP430F5528 Download Download
Download -
(ZQE) | 80 Download -
TPS735 Download Download
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

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User guide (2)
Title Type Size (KB) Date
PDF 1408 04 Sep 2013
PDF 1287 03 Sep 2013
Design files (3)
Title Type Size (KB) Date
PDF 108 03 Sep 2013
ZIP 95 03 Sep 2013
PDF 356 03 Sep 2013
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Software development (1)

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