Liquid-Level Monitoring Using a Pressure Sensor – Bar-Graph Display

Liquid-Level Monitoring Using a Pressure Sensor – Bar-Graph Display

This project allows users to monitor the liquid level on a Bar-Graph display. The liquid level is measured using a pressure sensor, the sensor is placed on top of the tank and is connected to an open-ended tube that is submerged in the water tank. The amount of water in the tank...

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Digital Pressure Gauge 0 to 10kPa (0 to 1.75 psi) with OLED display

Digital Pressure Gauge 0 to 10kPa (0 to 1.75 psi) with OLED display

The project presented here is a Digital Pressure Gauge using an OLED display. The measuring range of this unit is 0 to 10kPa (0 to 1.75 psi). Additional this compact open-source hardware is Arduino compatible. This board can be used for measuring low pressure up to 1.75psi with great...

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Liquid or Air Pressure Switch with Relay

Liquid or Air Pressure Switch with Relay

This pressure switch project is built using a piezoresistive transducer, LM358 OPAMP as comparator, and a relay. The circuit activate the relay when the pressure in a system exceed a given set-point. Basically, this switch can power ON or OFF a pump, valve, motor, when certain...

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Strain Gauge Sensor Amplifier or Single Supply Instrumentation Amplifier

Strain Gauge Sensor Amplifier or Single Supply Instrumentation Amplifier

This is a new project, a single supply instrumentation amplifier with onboard bridge configuration, and a 2.5V precision reference voltage chip. The project can be configured for applications such as thermocouple amplifier, bridge amplifier, ECG amplifier, pressure sensors, medical...

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