SLAAE63 August   2022 MSP430FR2353 , MSP430FR2353 , MSP430FR2355 , MSP430FR2355


  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Hardware Implementation
  5. 3Software Implementation
  6. 4Bench Test Performance
  7. 5Device Recommendation
  8. 6References
  9. 7Source Code


Level detection is often needed in industrial applications for process control or alarms. In these applications, using a tuning fork for level detection is popular, because tuning forks can work with most viscous liquids and withstand harsh conditions, such as highly corrosive liquids and high working temperatures. This application note introduces a digital solution based on the TI MSP430FR235x microcontroller to implement a tuning fork level switch sensor. This digital solution is low cost and easy to accomplish compared to traditional analog system implementations. Programming flow, source code, and on-bench test results are included.

The source code described in this application note can be downloaded from