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Sensors and Detectors

Simple Non Contact AC Mains Voltage Detector Circuit

Last updated on 12 July 2025 by Admin-Lavi Leave a Comment

This Simple Non Contact AC Mains Voltage Detector Circuit is to find AC voltage without touching wire. It uses antenna to catch AC signal from air. Then signal goes through transistors and LED blink when AC voltage is near. This circuit is good for safety and easy to make at home. WARNING: Even with this […]

Filed Under: Sensors and Detectors

Simple Soil Dryness Detector Circuit

Last updated on 12 July 2025 by Admin-Lavi Leave a Comment

Like human plant also need water to stay strong and healthy! Sometimes it little is hard to know when plant need water. This Simple Soil Dryness Detector Circuit tell how to make soil moisture sensor. When soil goes dry and plant need water this device will give an alert. This article also gives an easy […]

Filed Under: Sensors and Detectors

Simple ON-OFF Touch Switch Circuit with Relay

Last updated on 12 July 2025 by Admin-Lavi Leave a Comment

This is an easy circuit for Simple ON-OFF Touch Switch Circuit with Relay. We touch one time and it turn ON and touch again it will turn OFF. This circuit is good to control light, fan or other electronic device. We no need expensive or hard parts for this. There is no need of push […]

Filed Under: Sensors and Detectors

Simple Rain Detector Alarm Circuit

Last updated on 12 July 2025 by Admin-Lavi Leave a Comment

This Simple Rain Detector Alarm Circuit will help from getting our clothes wet from the sudden rain. It show how to make a easy rain detector alarm circuit. This circuit uses sensor to know when it is going to rain and then it make sound to give warning. So we can take umbrella or bring […]

Filed Under: Alarm Circuits, Sensors and Detectors

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