Capacitive-Based Liquid Level Sensing Sensor Reference Design
TIDA-00317
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Key Document

Description

This TI Design with the use of the FDC1004EVM provides a robust and accurate capacitive-based liquid level sensing solution. TIDA-00317 demonstrates the sensor design and configuration setup to mitigate parasitic capacitance interference from the system environment.

Features
  • Liquid level sensing using capacitive sensing technology
  • Reduces parasitic interference from the system environment
  • Rigid-flex circuit allows the sensors to be placed on various surface shapes
  • Liquid height resolution <1mm
  • Includes the environmental reference sensor to help compensate for environmental changes
  • Developed to be paried with the FDC1004EVM and FDC1004EVM GUI

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Schematic/Block Diagram

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
FDC1004  4 Channel Capacitance to Digital Converter for Capacitive Sensing (Cap Sensing) Solutions  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  25 MHz MCU with Integrated USB Phy, 128KB Flash, 8KB RAM, 12Bit/10 Channel ADC, 32BIT HW Multiplier  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
FDC1004 Download Download
Download Download
MSP430F5528 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 942 05 Mar 2015
Design files (5)
Title Type Size (KB) Date
ZIP 1795 30 Jan 2015
PDF 141 30 Jan 2015
PDF 300 30 Jan 2015
PDF 183 30 Jan 2015
PDF 33 30 Jan 2015

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