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Arduino-based liquid level sensing hardware

SST Sensing has partnered with Sparkfun to develop a simple to implement solution for single point liquid detection using infrared technology. The solution comprises an Optomax Digital liquid level switch which is connected to an Arduino board via the TTL output and powered by a 5V source.

LEDs on the Arduino can be programmed to indicate if the sensor is or isn’t immersed by the liquid to determine liquid levels. The devices are compact, allowing them to be deployed within constrained environments.

As this solution is of an optical rather than a mechanical nature, issues such as the build-up of deposits, jamming, or wear and tear are avoided, which is said to assure a long term operational life span.

The liquid level switch can be supplied by SST in a robust housing with either a Polysulfone or Trogamid construction. The complete solution operates in temperatures ranging from -25 to 80°C.

Author
Peggy Lee

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