sensor - Electronics Area https://electronicsarea.com Electrical and Electronics Tutorials and Circuits Thu, 09 May 2024 16:19:55 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.25 Lie Detector Circuit Using Two Transistors https://electronicsarea.com/lie-detector-circuit-two-transistors/ https://electronicsarea.com/lie-detector-circuit-two-transistors/#respond Tue, 07 May 2019 11:41:38 +0000 http://electronicsarea.com/?p=1407 Lie detector circuit using two transistors

This simple lie detector consists of two transistors and other additional components and can detect if a person does not tell truth (the person is lying), using two sensors placed directly on the skin.

The post Lie Detector Circuit Using Two Transistors first appeared on Electronics Area.

The post Lie Detector Circuit Using Two Transistors appeared first on Electronics Area.

]]> https://electronicsarea.com/lie-detector-circuit-two-transistors/feed/ 0 Humidity sensor circuit using the 555 timer https://electronicsarea.com/humidity-sensor-circuit-using-the-555-timer/ https://electronicsarea.com/humidity-sensor-circuit-using-the-555-timer/#comments Thu, 06 Sep 2018 18:44:50 +0000 http://electronicsarea.com/?p=2431 This simple humidity sensor circuit using a 555 timer, shows us the humidity level that a ground under test has. To achieve the goal, a couple of probes are used.

These probes are placed on the ground to be tested.

The post Humidity sensor circuit using the 555 timer first appeared on Electronics Area.

The post Humidity sensor circuit using the 555 timer appeared first on Electronics Area.

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