This is an Easy and Simple Magnetic Field Sensor Circuit. It can find magnet near the sensor. This circuit is easy to make and is good for beginners. We can learn how it work and use in small projects which is very fun and useful! What is a Magnetic Field Sensor: Magnetic field sensor circuit […]
Sensors and Detectors
Infrared (IR) Sensor Alarm Circuit using TSOP1738
This tutorial show how to make a Infrared (IR) Sensor Alarm Circuit using TSOP1738. It finds intruder using light which we cannot see. This alarm uses infrared light so people call it IR alarm. It make one invisible light beam with small chip named IC 555. If someone walk in front of light, then the […]
Sound Activated Relay Circuit
This article show how to make one Sound Activated Relay Circuit. It uses sound for turning device ON and OFF. Relays are special parts and they control big power things like lights and motors. Here are some ways to use it: This article tell how to build and use this type of circuit. of circuit. […]
Simple Non Contact AC Mains Voltage Detector Circuit
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 […]
Simple Soil Dryness Detector Circuit
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 […]
Simple ON-OFF Touch Switch Circuit with Relay
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 […]