Circuit detectors and sensors based electronics projects

Circuit detectors and sensors based electronics projects like: metal detectors circuits, smoke detectors circuit, water detector circuit, light detector and other based sensors projects.

Electronic thermometer with AO

A simple thermometer built with operational amplifiers and a normal or protective diode such as 1N4148, instead of the temperature sensor can be made using electronic diagram below.

Circuit Diagram:

Electronic thermometer with AO circuit diagram project

Temperature radiator indicator electronic project

A very simple indicator for radiator temperature can be designed using electronic scheme in the figure below.

Circuit Diagram:

Temperature radiator indicator electronic project circuit diagram

Bio-electronic interface for biofeedback devices

A bio-electronic interface that can be used in tests ECG, EMG and EEG can be performed using electronic diagram below.

Circuit Diagram:

Bio-electronic interface for biofeedback devices electronic project

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