Liquid or Air Pressure Switch with Relay

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https://www.electronics-lab.com/project/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 pressure is reached. A trimmer potentiometer is provided to […]

Strain Gauge Sensor Amplifier or Single Supply Instrumentation Amplifier

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https://www.electronics-lab.com/project/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 instrumentation, portable instrumentation, RTD sensor amplifier. The project is based on INA333 micropower, zero drift, rail […]

Dual-Channel Quadrature Hall-Effect Bipolar Switch Module for Magnetic Encoder

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https://www.electronics-lab.com/project/dual-channel-quadrature-hall-effect-bipolar-switch-module-magnetic-encoder/

The A1230 is a dual-channel, bipolar switch with two Hall-effect sensing elements, each providing a separate digital output for speed and direction signal processing capability. The Hall elements are photo lithographically aligned to better than 1 µm. maintaining accurate mechanical location between the two active Hall elements eliminates the major manufacturing hurdle encountered in fine-pitch […]